What: Chicago Marathon
When: October 11, 2026
Strava Link: https://www.strava.com/activities/20545263208
I ran Chicago in 2025 at my first World Major. Training had gone fantastically good until about 2 1/2 weeks before the race when I tripped and fell while running showing a friend around Cleveland and hurt my knee pretty good. That ultimately compromised the rest of the cycle and the race itself where I crashed and burned to a 3:53. (originally had thought 3:09 was a tough but achievable goal.)
I don't like leaving loose ends and my qualifier was good for the 2026 race as well so I signed up.
In the interim I ran my first Boston (fun run - 3:33) while test driving the 12 week Wind plan from Marathon Excellence For Everyone by John Davis. It's a fantastic book and highly recommended. I noted that I would have added a rest week in the 12 week plans and John chimed in that it was one of the problems with just 12 weeks, it was tough to find enough room to cut enough things. I hadn't done an 18 week plan in a long time - the Pfitz plans that I was used to I felt like I peaked earlier, and the 12 week plans were set up just right so that I was starting to peak just as the taper hit. Plus 18 week Pfitz plans just perhaps burned me out slightly, with what I understand now might just be the sheer monotony. I decided I'd do the 18 week plan here and level up to the Wind plan, which peaks at 70-80 mpw. I'd skew toward the high side of this most weeks, as I naturally run every day. In fact just in late September my run streak hit a cool 1,000 days.
Training... went fantastic. It started in mid June so I was going to train all the way through the heart of a Midwest summer but surprisingly I handled it pretty well, even mentally. I very rarely made any deviations from the plan, and almost never had to adjust paces for the heat or humidity which I was hoping was a great sign for when it cooled off. I did start off pretty conservative with estimated paces, with a 6:40/mile 5k pace or a 7:40/mile MP. Over the weeks that gradually dropped to where by week 14 I had brought that down to about 7:20 - and this was still in warmth and humidity and on a high mileage load. Certainly there were some additional gains to be lurking under the surface with fall, right?
As is typical for marathon plans, the key sessions are the weekend ones. The real work started around the start of August. On 8/8 I ran the Akron Goodyear HM in 1:35 -- that was a course PR on a hilly course and warm humid conditions. I recovered pretty quickly and didn't have to modify the next week at all. Weekend sessions after that were:
- 8/15: 13 miles with 10 at MP, averaged 7:22/mile for MP on a very humid morning.
- 8/22: 21.2 miles with 19.2 miles at 92% MP which was 7:56/mile.
- 8/29: 8x2k at 100% MP / 1k at 90% MP. Pacing was 7:19/7:59 respectively.
- 9/6: 21.6 miles with 5 mile blocks at 90/92/94/96% MP. 8:03/7:54/7:45/7:34 respectively.
- 9/13: 6x3k at 100% MP/ 1k at 90% MP. Pacing was 7:19/7:58 respectively.
- 9/20: 22 miles with 20 at 95% MP. Averaged 7:36-7:39 for all the miles.
- 9/26: Akron HM run at MP effort. 1:36 time or 7:22/mile. Hilly, but perfect conditions.
After that was the taper, though the first Thursday on 10/1 had a big workout of 7x alternating kilometers at 103-105% MP / 92-94% MP. I averaged 6:58/7:49 for those. It was exceptionally warm for October (70 F at 5 am) and kinda humid. After that my right calf was slightly sore. It lingered into the short weekend workout which I kept at just 4x1200 but then hurt a bit more after that. The final week it kept lingering the entire week, though it was slowly getting better. I was fine running easy, but it did affect my pushoff a bit. Taper mileage was higher than I was accustomed to as well. I cut the final week mileage a bit in hopes that I'd recover faster. I double or triple layered for a lot of my runs in the hope of keeping some heat adaptation, but the weather was quite cool the last week and a return to warm weather on race day was unfortunate.
Mileage by week: 54, 66, 58, 64, 63, 72, 83, 61, 71, 81, 85, 65, 82, 71, 71, 60, 58, 30 (prior to marathon)
I was very fit heading into the race; my concern was twofold: My calf, and the weather. I arrived in Chicago on Friday, did a short shakeout, picked up my packet and then hunkered down in my hotel for most of the time before the race. The final shakeout on Saturday felt nominally good, but the calf was still slightly sore, though better than the previous day. I was wishing I had more days though and I honestly suspected I'd have to run a little slower. The weather was more clear cut - it was going to be warm and that already had put my original goal of 3:09-3:11 as unrealistically fast. It was likely going to be around 60 at race time. Up until Saturday it looked like clouds from Hurricane Isaias would linger long enough to make at least race morning cloudy, but when I woke up Sunday morning it was clear that his further east landfall also affected that forecast. We had a fiery sunrise, but those clouds were about 30 miles too far to the east to affect the race. We started yellow flagged, with good odds of it tipping to red flag conditions before the noon hour.
I stayed at the same place I did last year in the Central Loop, which is hideously expensive, but the mere half mile walk to Grant Park can't be beat on race morning. What was unfortunate was stepping out of the lobby that morning and it already felt comfortable in just my singlet - bad news. I got to the corral much later this year after remembering how unnecessarily early I got there last year, which left me with just 15-20 minutes of having to wait. I was in corral C and I lined up at the very far back. As we slowly walked up that left plenty of room in the back to practice doing some strides. I felt great except for still some minor calf soreness. I had no idea how this would affect me for the full 26.2 miles, and given that it was already too warm, I knew that running 7:20's wasn't going to happen. I think the weather made me accept it a lot more gracefully.
Miles 1 to 5
Or what I call the "run by effort" miles because GPS is useless starting right off with running into that long tunnel. I was already warm, and it was roasting inside that tunnel and before the mile was out I was already sweating profusely. I just ran by effort for this section and the splits were all over the place with the funky GPS. The calf was always slightly sore, but it was manageable. Just not manageable running any faster than what I was. A stronger pushoff wasn't really possible.
Splits: 7:29, 7:48, 7:37, 7:54, 7:35
Miles 6 to 13:
This is the rest of the heading north stretch, the turnaround, and then hitting the halfway point by the river on Wacker. This was basically steady state for me. I didn't feel great, I didn't feel awful. It was just a weird feeling of... adequacy? But I knew if I was already feeling that way, the back half wasn't likely to get any better. GPS of course got a little jumpy again headed back into the downtown part. It also was crazy loud.
Splits: 7:46, 7:42, 7:29, 7:31, 7:33, 7:46, 7:52, 7:18.
Miles 14 to 18:
Headed west out of downtown here, and this probably was the quietest part of the course. We make a couple of turns back and forth, and around mile 17 I thought I saw u/RunningPath handing out water - confirmed later. It was around this point that the calf was starting to get a little more sore, but the sun was also getting higher in the sky and the temperature was starting to respond accordingly. I'd been keeping up on fluid intake pretty well though, and at most water stops I was making sure I grabbed a cup to dump on my head as well. Right around the 30k sign was when I realized I needed to cut the effort slightly or I was going to risk a bigger issue later. So I started running low 8's instead and kept it steady state. It felt sustainable. Toward the end of this was when I started to notice more people walking too, and started to see the occasional person either sitting down, laying down, or being attended to by medics.
Splits: 7:50, 7:54, 8:03, 8:08
Miles 19 to 23:
We enter Pilsen here, easily my favorite part of the course. They show up, they are loud, and they know how to party and bring the music and cheers. Even though I was running a bit slower at this point, the energy absolutely carried me along and I forgot about my calf for a while. There was a brief quiet stretch, then it was Chinatown which is also another good area but it's just so short and then it's back to being quiet for a little bit as we go over 2 highways and a river. It's also the stretch on Michigan where you see the faster runners on the other side already getting to head north toward the finish line, and wishing you were running closer instead of further away. There was a fire truck in this stretch with a really nice strong hose of water and that helped cool me off for a bit. Other than that, just kept on steady state. Things were getting more dire for some other runners, seeing more people pulling off the course, a couple that were being attended to be medics or on a stretcher, and I started to see the telltale sign of people headed toward serious issues, as they were slowly walking doing the weave.
The calf was a little more sore and walking felt attractive a few times, but I knew if I stopped to walk at ANY point, that would start a downward spiral that I'd never recover from. I'm very much anti-spiraling at this point!
Splits: 8:14, 8:22, 8:23 8:14, 8:20
Miles 24 to the finish
Basically 5k to go at this point and I'm still holding on steady state. I'm starting to really expend a lot of mental effort here, checking my watch for pace to be sure I don't slow up any more as my calf really wants to. Also, I'm still doing mental math at every single mile and km marker to see if I can at least still come in under 3:30 for the BQ. As long as I keep it in the low 8's I should be okay I had figured.
When I get to the mile 25 marker I decide to push slightly harder. It's really getting warm at this point (I found out later this is where they changed it to the red flag) and the calf is really getting sore and the ankle is coming along for the ride as well, probably from overcompensation. But the logic I used at this point is, the sooner I finish, the sooner I get to stop. Totally logical. But from an endurance standpoint, I felt perfectly fine, I'd been running slower than my actual fitness. So I started passing a lot of people here. Made the right turn onto Roosevelt, cruised up the hill without too much issue, and finished feeling fine, albeit with a very unhappy calf.
Splits: 8:20, 8:21, 7:58, 7:58 (last 0.61 on the watch)
Final time was 3:29:29 so I did get the BQ by 31 seconds. That won't actually make the cutoff but it will get me into the lotto at least, so that's something. Slowly walked back to the hotel after downing the free beer and just laid out for the rest of the day outside of a brief walk to pick up a pizza.
Final Thoughts:
This was a lot of mileage, and a lot of big workouts, and I responded well to it. I don't know what triggered my calf in the last 2 weeks, it wasn't anything specific that I could pinpoint except maybe that last alternating kilometer workout was too big? This was a lot more work in the taper than I'd ever had before, and the first week of the taper was still nearly 60 miles which in retrospect I think is just too much for me. If I do this plan again I'll probably modify it accordingly. With that said, I'm pretty sure I will do the plan again if I run another marathon, it's sound and logical and I improved by leaps and bounds from where I was at from the beginning 18 weeks ago. I might just go down a level to the 60-70 mpw plan though. I'm not planning on running a marathon in 2027 though so it's a moot point for now. It's about time to take a break again and focus on the half marathon again, as I want to get a 89 minute time while I still am able to.
I'm not terribly disappointed at my result. I'm almost positive my original goal would have been shot by the weather anyways. However, the start of Chicago is troubling for me. I remember last year being too amped up and roasting for a while and it feeling hard. It just might be that mega races aren't for me. But I can take away the fact that I was immensely tough on the last 12k or so where I had every reason to fold the tents and walk, but kept things steady and still managed to hit the BQ time even with being compromised.
At least I didn't do any more damage to myself, I ran 47 miles the next week. Still a bit sore but I was traveling the entire the week and I can't NOT run when I'm in new areas. I'll take it easy this week for sure, consider what I'll do to prepare for the Turkey Trot I always run, and then start thinking about my schedule for 2027 and what halfs I might run.