Cedar Rapids Marathon
Cedar Rapids Marathon race day weather
Cool morning, variable winds ahead
Runners will face a temperature trend starting at 48°F and reaching 56°F by the finish. Wind will be a factor with a headwind at the start and several segments, switching to a tailwind around miles 7-10 and 15-23. With humidity at 65%, adjusting pace conservatively at the start is advisable, particularly through the headwind sections in the first half and the climbs around miles 6 and 15.
Pace Calculator
Enter a finish time to see what race day does to it.
Get forecast alerts for Cedar Rapids Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Cedar Rapids Marathon route and elevation
The Cedar Rapids Marathon course has about 1,115 ft (340 m) of climbing and 1,114 ft (340 m) of descent, and finishes near the elevation it starts. It is hillier than 88% of the marathon courses racecast.io has mapped, measured by what the hills cost in time. The hardest mile is mile 18, with 160 ft (49 m) of climbing and a 3% average grade.
Biggest climbs
- Miles 5.4 to 6.2: climbs about 145 ft (45 m).
- Miles 13.5 to 15.5: climbs about 145 ft (45 m).
- Miles 16.8 to 17.9: climbs about 165 ft (50 m).
What the hills cost
- 3:30 on a flat course is about 3:33 here (3 minutes slower).
- 4:00 on a flat course is about 4:03 here (3 minutes slower).
- 4:30 on a flat course is about 4:34 here (4 minutes slower).
Hills only, priced mile by mile on the course map. The pace calculator above adds the race-day weather.
Even-effort splits for a 3:30, 4:00 or 4:30 finish
| Mile | Climb | Descent | 3:30 | 4:00 | 4:30 |
|---|---|---|---|---|---|
| 1 | 50 ft | 49 ft | 7:54 | 9:01 | 10:09 |
| 2 | 17 ft | 9 ft | 7:57 | 9:05 | 10:13 |
| 3 | 9 ft | 22 ft | 7:50 | 8:58 | 10:05 |
| 4 | 53 ft | 14 ft | 8:13 | 9:23 | 10:33 |
| 5 | 1 ft | 39 ft | 7:44 | 8:51 | 9:58 |
| 6 | 112 ft | 10 ft | 8:46 | 10:00 | 11:15 |
| 7 | 111 ft | 92 ft | 8:02 | 9:12 | 10:21 |
| 8 | 68 ft | 17 ft | 8:19 | 9:31 | 10:42 |
| 9 | 40 ft | 158 ft | 7:29 | 8:32 | 9:37 |
| 10 | 34 ft | 51 ft | 7:50 | 8:57 | 10:03 |
| 11 | 25 ft | 47 ft | 7:48 | 8:55 | 10:02 |
| 12 | 54 ft | 2 ft | 8:19 | 9:31 | 10:43 |
| 13 | 26 ft | 30 ft | 7:53 | 9:00 | 10:07 |
| 14 | 59 ft | 49 ft | 7:59 | 9:07 | 10:16 |
| 15 | 110 ft | 10 ft | 8:45 | 10:00 | 11:14 |
| 16 | 28 ft | 77 ft | 7:42 | 8:48 | 9:55 |
| 17 | 8 ft | 120 ft | 7:29 | 8:34 | 9:38 |
| 18 | 160 ft | 3 ft | 9:15 | 10:34 | 11:53 |
| 19 | 24 ft | 107 ft | 7:36 | 8:41 | 9:46 |
| 20 | 4 ft | 81 ft | 7:36 | 8:41 | 9:47 |
| 21 | 6 ft | 14 ft | 7:51 | 8:59 | 10:06 |
| 22 | 17 ft | 4 ft | 8:00 | 9:09 | 10:17 |
| 23 | 48 ft | 0 ft | 8:18 | 9:28 | 10:39 |
| 24 | 88 ft | 44 ft | 8:15 | 9:26 | 10:37 |
| 25 | 2 ft | 84 ft | 7:36 | 8:41 | 9:46 |
| 26 | 9 ft | 32 ft | 7:48 | 8:55 | 10:02 |
| Last 0.2 | 18 ft | 17 ft | 1:46 | 2:01 | 2:16 |
Explore the Cedar Rapids Marathon course with the weather and your pace along the route, or compare it with other races.
Get your personalized Cedar Rapids Marathon race plan
A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.
About the Cedar Rapids Marathon
The Cedar Rapids Marathon is a Boston-qualifying full marathon held in downtown Cedar Rapids, Iowa. The USATF-certified course starts and finishes near Kingston Yard at 1st Avenue and 1st Street SW, running along the Cedar River and through downtown neighborhoods and riverfront paths. Endurance Sports Marketing Corporation, which also produces the IMT Des Moines Marathon, launched the race in 2026 with about 850 full-marathon finishers among roughly 3,000 total weekend participants. The weekend also includes a half marathon, marathon relay, 10K, 5K, and a free kids run.