Chicago's Late Surge and Your Last 10K
Show notes
What the episode covers
Does patient pacing actually win marathons, and what should you do about it with five weeks until New York on November 1? This Tuesday's episode uses Chicago to answer it. Amos Kipruto won in 2:01:09, while defending champion Jacob Kiplimo faded to fourth in 2:04:18.
- Kiplimo reached 30K in nearly the same time in 2025 and 2026, yet the results were very different.
- A New York race plan covers pace, a fueling schedule tied to mile markers, and mental cues for the last 10K.
- The first 72 hours after a marathon call for walking, regular meals, extra sleep, and patience before you jog.
Pacing, fueling, and recovery work as one plan, which is the full-spectrum view of fitness.
Timeline
In this episode
7 moments worth skipping to. The timecodes match the player above.
- 0:00Introduction
- 1:47The Race: Kipruto Breaks Kiplimo
- 5:22Split by Split: The Anti-Banking Math
- 9:02The Turn: Same Fade, Same Course, One Year Apart
- 12:49Building Your NYC Race Plan: Pace, Fuel, Mind
- 15:53The First 72 Hours After Chicago
- 18:22Outro
Quick answers
Straight from the episode
The questions this one settles, without the listen.
- What happened between Kipruto and Kiplimo at the Chicago Marathon?
- Kiplimo surged and broke up the pack, but only Kipruto answered. They ran 25K-30K in 13:58 and reached 30K together in 1:25:28. Kipruto then pulled 12 seconds clear by 35K and led by 1:32 at mile 24. His time was a 30-second PB that tied fifth all-time. Kiplimo finished fourth in 2:04:18.
- Why did Kiplimo's surge fail to drop Kipruto?
- His 20K-30K split of 28:18 (1:59:24 pace) did not shake Kipruto, and then he slid to 2:00:35 pace by mile 21. He ran about 5:18 miles over the last 5.2 miles, consistent with 16:32 for 35K-40K. The hosts frame it as an anti-banking lesson: going too hard early costs you late. Mauri's blown-up AR bid is cited as a second example.
- How did Kiplimo's 2025 Chicago race compare with 2026?
- In 2025 he hit 30K in 1:25:31, ran a 29:39 final 10K, and won by 91 seconds thanks to a big lead. In 2026 he hit 30K in 1:25:28 beside Kipruto and finished fourth in 2:04:18. No 2026 final-10K split is given, so the fade rests on the finish and Marathon Handbook's headline. The hosts' read is that the engine looks strong and he needs a plan for the last 10K.
- How should I plan my pace, fuel and mindset for the NYC Marathon?
- The hosts offer opinion-based advice: ease into goal pace so the first half feels almost too comfortable, and write down a plan for the last 10K. Fuel on a watch-alarm schedule practiced in training and tied to mile markers. Use a 30K cue plus a second cue aimed at the next mile marker. NYC is on November 1.
- What did Kipruto mean by saying the marathon begins at 30 kilometers?
- Per Run Blog Run's recap, Kipruto said the marathon begins at 30 kilometers. He backed it up with a mile 22 split of 4:33 and a mile 23 split of 4:40, showing he was still running strongly after 30K.
- What should I do in the first 72 hours after finishing the Chicago Marathon?
- The hosts suggest gentle walking, regular meals with carbs and protein, steady fluids, and extra sleep. On days two and three, do easy walks, gentle stairs, and light stretching. Wait for soreness to ease before trying a short easy jog. See a doctor for pain that persists in one spot.
Transcript
The full conversation
Every word of the episode, 3,468 of them, in the order they were said.
Read the transcriptHide the transcript
MilesOkay, my training update is humbling. I did a long run Sunday, felt great for 10 miles, and then spent the last three negotiating with a hill like it was a car dealer.
AmaraDid the hill win?
MilesThe hill always wins. Yours?
AmaraMine's better. I finally did my easy runs actually easy. Plot twist, I didn't die, I just got slower and somehow happier.
MilesRevolutionary.
AmaraI know. I'm a pioneer. Okay, so get this, though. Last year on the show, we talked about Jacob Kiplimo at Chicago.
MilesThe fade.
AmaraThe fade, and now it's a sequel. Same course, same defending champion, same ugly last stretch a year apart.
MilesHold on. I want the result on the table first. Amos Kipruto won Chicago in two oh one oh nine.
AmaraWhich is absurd.
MilesAnd Kiplimo, the man who was supposed to run away with it, finished fourth in two oh four eighteen.
AmaraFourth? Oh, man.
MilesYeah, and I'm Miles, by the way, and that's Amara, and this is Full Spectrum Fit in case anyone wandered in off the street.
AmaraNice timing.
MilesI try. So here's what's bugging me. Everyone's gonna say Kiplimo just had a bad day.
AmaraRight, or that Kipruto's a monster.
MilesBut what if the real winner is patience, running the first stretch like you've got something left because you do?
AmaraOoh, and if that's true, it isn't only for elites. Your last ten K needs a plan, too, and New York is coming November first.
MilesSo that's the question. Does patient pacing actually win, and what do you do about it in five weeks?
AmaraAnd I'll tell you right now, I think the answer has more to do with a plan than with legs.
MilesCareful, you're spoiling it. Let the race make its case first.
AmaraWait for it because we're gonna build that plan. But first, the race itself.
MilesRight. Let's set the scene in Chicago and see how the race got to the break. Okay, picture the course headed towards thirty K. The pack is still bunched. Everybody's jockeying, and then Kiplimo goes.
AmaraOh, man. The defending champion makes the move himself.
MilesHe does, and the break came between thirty K and thirty-five K. That's the stretch where Kipruto broke him.
AmaraWait, broke him? Kiplimo threw the first punch.
MilesExactly the twist. World Athletics official race report says Kiplimo's surge broke up the pack and only Kipruto could answer.
AmaraOnly one guy. Everyone else just watched them leave?
MilesAnd think about what answering a surge actually asks of you. Everybody in a pack has a pace in their head. A surge says throw that pace out right now and trust the new one.
AmaraWhich is a real gamble this deep into a marathon. Nobody can tell you in the moment whether the move is brilliant or reckless.
MilesRight, and the report doesn't tell us what either guy was thinking, so I'm not going to invent it. What we know is that of everyone in that bunch, one person went with him.
AmaraSo it goes from a crowd to two guys with a gap opening behind them.
MilesRight, and the pace was ridiculous. The report has the two of them covering twenty five K to thirty K in thirteen fifty-eight.
AmaraHold on. Fourteen minutes for five kilometers after you've already run twenty-five?
MilesBasically. That's a bit under three minutes a kilometer with well over an hour of racing already in the legs.
AmaraWhich brings up the clock. Where were they at thirty K?
MilesThey're together at one twenty-five twenty-eight. World Athletics worked out that pace projects to a two hours and two minutes.
AmaraPlot twist. That's faster than the winning time.
MilesIt is, which is the whole tension. You can run a projection like that for a while, but somebody has to pay the bill.
AmaraAnd Kiplimo's the one who faded.
MilesMm-hmm. By thirty-five K, the report has Kipruto twelve seconds clear at one thirty-nine fifty-eight.
AmaraTwelve seconds? That's nothing. That's a bad water bottle grab.
MilesFair, but it's a gap that only grows. By mile twenty-four, the report says Kipruto led by a minute and thirty-two seconds.
AmaraWhoa. Twelve seconds to ninety-two in a few miles?
MilesThat's what a fade looks like from the outside. One guy holds, the other one drifts backwards.
AmaraHere's what gets me, though. At thirty K, they're together. At thirty-five K, it's twelve seconds. That's not a cliff. That's a crack.
MilesAnd that's the part worth stealing for your own racing. The damage starts before it shows up on the clock. By the time the gap looks big, the decision that caused it is miles behind you.
AmaraLike a bad restaurant order, you only feel it hours later.
MilesExactly that.
AmaraAnd Kipruto's reward for holding on because it wasn't just a win.
MilesNo. The report calls his time a thirty-second personal best.
AmaraA PB. At that level, shaving thirty seconds is huge.
MilesAnd it tied him for fifth on the all-time list.
AmaraFifth ever. Okay, I'm a little annoyed at how good that is.
MilesSame. But notice what the surge did. It didn't win the race for the guy who made it.
AmaraSo where exactly did Kiplimo's day turn? Because twelve seconds at thirty-five K isn't a collapse yet.
MilesRight. So now the splits in detail. That's where it comes apart. Okay, so here's what's bugging me about Kiplimo's day. He didn't run badly. He ran a monster medal.
AmaraWait, really? He finished fourth.
MilesYes, and the middle is the problem. LetsRun's race analysis says he ran twenty-eight eighteen from twenty K to thirty K. That works out to one fifty-nine twenty-four marathon pace.
AmaraSay that again. Under two hours?
MilesPace, not finish. A pace that would be a world shaking time if he held it.
AmaraAnd it still didn't drop Kipruto?
MilesRight. He emptied the tank on a surge that bought him nothing.
AmaraOh, man. That's the worst trade in running. You pay full price, and the other guy gets the goods.
MilesFull price, no receipt. So where did he land after that?
AmaraLetsRun has him on two hours, thirty-five seconds pace at twenty-one miles. Still a great day on paper, but notice what that means. The pace he was on had already slipped from the sub-two pace of that middle stretch.
MilesMm. So the surge is the high point, and the slide starts after it.
AmaraThat's how I read it. Then he ran his last five point two miles at five-eighteen per mile.
MilesOkay, so get this. That's not a crawl. Five-eighteen is faster than most of us run a single mile on fresh legs. Speak for yourself. Mine's a downhill with a tailwind.
AmaraMine's a downhill with a tailwind and a bribe.
MilesBut that's the cruel part. In absolute terms, it's still fast. It's just a long way from where he was at thirty K. And when someone is glued to your shoulder, that gap is everything.
AmaraHold on, give me the late stretch. The Marathon Handbook piece has something on that, right?
MilesIt does. Kiplimo ran sixteen thirty-two for thirty-five to forty K, about five nineteen per mile.
AmaraSo that lines up with the five eighteen from LetsRun. Two different write-ups, same late pace.
MilesExactly. Fast but slowing and beaten.
AmaraOkay, I'll say what the data says. Early surges cost you. You can see it in the splits. Spend the energy at twenty K, and the pace he had at thirty K is gone by the late miles.
MilesMm, I'm not sure I buy it that cleanly.
AmaraOh, here we go.
MilesSometimes surging is right. Someone has to test the field. If Kiplimo sits and waits, maybe Kipruto surges first and he's the one answering.
AmaraSure, but he surged and didn't separate anybody.
MilesThat's one race. Plenty of marathons are won by the person who went when everyone else was still counting.
AmaraFair, but notice what a surge costs even when it works. You're spending from the last miles.
MilesSure, but spending isn't always wrong. If you know you've got the legs, going early can be the right call. The mistake is doing it without a plan for what comes after.
AmaraOkay, that I'll take. Surge on purpose, not on impulse.
MilesAnd for most of us, a surge is just a few miles quicker than planned because the crowd felt good. That version never feels like a decision, which is why it's dangerous.
AmaraFine. A surge can work. This one just didn't separate anybody.
MilesAnd Kiplimo wasn't the only one who went out hot. LetsRun also covers Vinny Mauri.
AmaraThe American record guy?
MilesHis early bid for the American record blew up. The report treats it as a second example of going out too hard.
AmaraOoh, so two guys, same mistake, different ambition.
MilesSame lesson, and it isn't only an elite thing. Go out too hard on a good day and the last miles take it out of you.
AmaraAnd it's a slightly different flavor of the same mistake. One was an early gamble, the other a surge in the middle. Different timing, same mistake.
MilesSo that's the math on the day. Let's pull the thread and see what it says about the rest of us.
AmaraOkay, let's do it.
MilesOkay. Rewind a year. Same course, same man, and Marathon Handbook's piece on this year's title defense lays last year's numbers right alongside.
AmaraWait, he won last year. Where's the fade?
MilesRight there in the splits. Marathon Handbook says he hit thirty K in one twenty-five thirty-one and then ran the last ten K in twenty-nine thirty-nine.
AmaraSo he slowed down.
MilesSlower per kilometer than the first thirty, yes, and he still won by ninety-one seconds.
AmaraNinety-one seconds with a fade?
MilesBecause he was so far clear, nobody was close enough to make him pay.
AmaraOh, that's good, sort of. The lead was a nice blanket.
MilesA blanket over a hole in the floor. Everyone looked at the win, and nobody looked at the last ten.
AmaraSo the fade was there the whole time, it just never got tested.
MilesAnd here's what that means for the rest of us. A big lead or a fast first half can hide a weak finish. You don't find out your last ten K is a problem until someone's close enough to use it.
AmaraWhich is kind of terrifying because on a good day, you'd never know. The win is the cover story.
MilesRight. Now flip to this year. Same place on the course, 30K, and he reaches it side by side with Kipruto in one twenty-five twenty-eight.
AmaraThree seconds off last year's number at that point.
MilesNearly identical at 30K. The difference is the guy next to him.
AmaraAnd there's no cushion this time.
MilesNone. Marathon Handbook has him finishing fourth in two oh four eighteen, and its headline says his title defense came apart over the final ten K.
AmaraSo a fade that a big lead hid in twenty twenty-five cost him the title in twenty twenty-six.
MilesYep.
AmaraOkay, I have to ask because everyone's going to say it. Is this a talent story? Did he just have a bad day?
MilesHe hits thirty K nearly the same both years. Last year, we have the final ten K split. This year, we only have the fourth place finish and that headline about the final ten K.
AmaraFair. So it looks like a similar shape, not obviously a bad day.
MilesCareful, though. These are splits and a headline, not a look inside his head, so I can't tell you why. But nothing in them says he locked the engine through thirty. He was level with the winner there.
AmaraSo the engine's fine.
MilesSure. My read, and it's only our read, is the engine looks strong, and what's missing is a plan for the last ten K. What do you do at thirty K when it starts to hurt? When do you take a gel? When do you hold? What do you tell yourself?
AmaraPlot twist. The answer to our whole question isn't talent at all.
MilesNo. It's the absence of a plan for the last ten kilometers.
AmaraOkay, but have a plan is advice that sounds great and does nothing. Make it concrete.
MilesFair. Picture a plan on a card for New York. At thirty K, take your scheduled fuel and say your cue. From thirty to thirty-five, your only job is holding form and effort, not chasing pace. At thirty-five, if you feel good, you get permission to press. If you don't, you keep fueling and keep your shoulders loose.
AmaraI like that the permission comes late. Most of us press at thirty feeling heroic and pay at thirty-eight.
MilesAnd the bad day version, if my pace slips at 35, I don't panic speed. I take the next fuel, shorten my stride, and pick a landmark to run to.
AmaraA plan for when the plan breaks. Nobody writes that one.
MilesWhich is exactly the hole.
AmaraAnd that's us. That's every one of us, Miles. I've definitely hit 30K with a great first 20 and zero idea what came next.
MilesSame. Hope and a half-eaten banana.
AmaraFully my strategy. Okay, but the winner had the same road. What was he doing right?
MilesThat's the other half. So what does the winner's side teach us? Time to build the NYC plan.
AmaraOh, I'm ready.
MilesOkay, so the winner's side. Kipruto said after the race that the marathon begins at 30 kilometers. Run Blog Runs has the quote.
AmaraOh, I love that because 30K is where most of us are already mumbling to ourselves.
MilesExactly, and he backed it up. Mile 22 in 4:43, mile 23 in 4:40. Run Blog Runs says those two miles sealed the race.
AmaraHold on. Those are brutal miles. Twenty-one miles already in the legs, and he's still dropping that?
MilesRight, which suggests he had something left, and I guess that wasn't an accident.
AmaraSo what do we steal for New York? November 1st, so the clock is already ticking.
MilesMy opinion, nothing sourced here, hold back early. Make the first half feel almost embarrassingly easy.
AmaraEmbarrassing how?
MilesPeople pass you. A guy in a costume passes you. You let him go.
AmaraThe costume guy always looks so fresh at mile three.
MilesAnd he'll be walking at mile 20. Second thing, write down your last 10K, literally on paper, where you push, where you hold, what you do if your pace slips.
AmaraWait, a plan for the plan?
MilesA plan for the part that usually has no plan.
AmaraGoing back to pace for a second, though, how easy is easy? People hear hold back and still run too fast.
MilesMy rule of thumb, and again, just opinion, if the first few miles feel almost too comfortable and you're slightly annoyed at how slow it seems, you're close. Ease into goal pace gradually instead of starting there. The first half should feel like a warm-up for a race that starts later.
AmaraOkay, I'll add fuel, and this is coaching sense, not a study. Take it on a schedule. Set a watch alarm and eat when it buzzes whether you're hungry or not.
MilesBecause by the time you feel hungry-
AmaraYou're already behind. Late fuel doesn't catch up. Your stomach is basically a toddler. It stops cooperating when you ignore it.
MilesHa. Fair.
AmaraFew more. On fuel, practice it on your long runs so race day isn't the first time your stomach meets it. And write the fuel stops next to your mile markers, so you're not negotiating with yourself at mile 18. And then the mental piece. Borrow Kipruto's line. Pick a cue for 30K, a phrase you say out loud when you hit that marker.
MilesLike what?
AmaraMine would be, "The race starts now." Short, a little dramatic, very me.
MilesVery you. Mine's duller. Shoulders down, eyes up, next mile. But the point is it fires at a set place, so you aren't deciding in the moment while your brain is mush. And I'd keep a second cue for when it really hurts, aimed at the next mile marker, not the finish. Nobody can think about the whole way home. Anybody can think about one mile.
AmaraRight. Decisions at mile 20 are terrible decisions.
MilesTerrible. So that's pace, fuel, and a cue all set before the gun.
AmaraOkay, but here's my worry. Plenty of people listening ran Chicago, and they don't have New York as a goal yet. They have a body that just did 26 miles.
MilesYeah. Racing is half the story. What you do in the first 72 hours after the finish matters, too.
AmaraOh, you're going to love this part because most of us get it wrong.
MilesOkay, so you finish Chicago. Legs feel like two bags of wet gravel. First rule from me, keep moving gently. A slow walk that evening, maybe an easy spin on a bike the next day.
AmaraWalking, Miles? I can barely do stairs. I descended my building steps backwards last time.
MilesEverybody does. Walking still beats the couch. The stiffness loosens up, and you feel less like a rusty gate.
AmaraFine. Food, though. This is my department. Your body just burned through a ton of fuel, and it wants it back.
MilesRight.
AmaraSo eat real meals with carbs and some protein and drink water through the day, not one heroic chug at midnight. Sip steadily. Our view, not a prescription.
MilesAnd the pint of celebration is allowed. I'm just saying the first meal shouldn't be all pint.
AmaraMiles, I make no promises about my pint.
MilesSleep next. You'll probably be wired and exhausted at once, and the first night might be rough. Give yourself the extra hours when they come. Nap if you can.
AmaraOh, and no alarm on day two if you can dodge it.
MilesExactly.
AmaraAnd what do days two and three actually look like? That's when I forget the plan.
MilesSame lane, honestly. In my experience, the stiffness often feels loudest on day two, so that's an easy walk, taking stairs gently, and a bit of light stretching if it feels good. Day three, you stay in the same lane. Movement, regular meals, and an early bedtime. The goal across all three days is to feel a little better each morning than the last.
AmaraAnd if you don't, that's information.
MilesRight.
AmaraNow, running again. Everybody's itching to prove the legs still work by day three.
MilesDon't. For most people, I'd say wait until the soreness is gone, then start with a short, easy jog. Days of walking and easy cross-training come first. Treat the first week back as a conversation with your body, not a workout.
AmaraAnd if something hurts in one spot and keeps hurting, sharp pain, swelling, a limp that won't quit?
MilesSee a doctor. Sore all over is normal. Pain that sticks around in one place is a different thing, and neither of us is going to diagnose it from a microphone.
AmaraPlot twist, Miles. This is the same plan again. Patient finish, patient recovery.
MilesKiplimo went out hot and then paid for it in the last miles. Rush your comeback and you pay later, too, just on a longer bill.
AmaraWhoa, okay. That's dark but accurate.
MilesSo ready to wrap with the takeaways?
AmaraLet's do it.
MilesThree things to carry out of this one, and I'll keep it quick. Run the early miles like you're embarrassed by how easy they feel.
AmaraWrite the last 10K down before race day on paper with the fuel alarm and the cue you'll stay out loud.
MilesAnd after the finish line, go slow for three days. Walk, eat, sleep. Jogging can wait.
AmaraThree takeaways. One of them is boring, one is homework, and one is naps. I'm good with that.
MilesNaps are the only part you'll actually follow.
AmaraRude. Accurate, but rude.
MilesAnd if there's one thread through all of it, it's what we kept circling with Kiplimo. The easy story is talent. The useful story is the plan for the last stretch.
AmaraOur read anyway, and Kipruto's line about the marathon beginning at 30 kilometers is a good one to carry into New York on November 1st.
MilesIf you've got a blind spot we missed, drop it in the reviews.
AmaraOr tag us at Full Spectrum Fit. New episodes land every Tuesday.
MilesOkay, my training update since we opened with them. This week's long run went out slow, and I felt smug for the entire first half.
AmaraWait, smug? Miles, that's the whole point. Feeling smug at mile five is the plan working.
MilesThen keep the smugness in the bank until the last 10K.
AmaraFine. My update is that I wrote my cue on my wrist. It says, "Stay boring."
MilesHa. See you Tuesday.
More episodes
Keep listening
Other episodes of Full Spectrum Fit, newest first.
- The Free Hour Is Not Free SleepOct 6, 2026 · 18 min
- Assefa's Achilles Rupture and Your Taper WeekSep 29, 2026 · 18 min
- Chicago's Deepest Field Yet: Beats Kiplimo?Sep 22, 2026 · 18 min
- Kiplimo's Chicago Crash and the Banking-Time TrapSep 15, 2026 · 18 min
Sources
Where this came from
4 reports behind the episode. Every one of them opens where it was published.
- Jacob Kiplimo's Chicago Title Defense Came Apart Over the Final 10Kmarathonhandbook.com
- Feysa and Kipruto triumph in swift Chicago racesworldathletics.org
- Amos Kipruto (2:01:09) Takes Down Jacob Kiplimo in Chicago; Clayton Young (2:05:23) Top American as Vinny Mauri's Bold AR Bid Blows Upletsrun.com
- FEYSA & KIPRUTO PREVAIL AT FAST CHICAGO MARATHONrunblogrun.com
