Niagara Ultra Races Marathon
Niagara Ultra Races Marathon race day weather
Warm start, adjust pace early
Runners will face a temperature rise from 67°F at the start to 75°F at the finish, with humidity at 70%. A light tailwind at the beginning will shift to headwinds through several segments, notably from miles 6 to 12 and 27. Runners should consider starting conservatively to manage the heat and adjust hydration strategies accordingly, especially during the climbs at mile 8 and headwinds in the latter miles.
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Niagara Ultra Races Marathon route and elevation
The Niagara Ultra Races Marathon course has about 837 ft (255 m) of climbing. It is hillier than 78% of the marathon courses racecast.io has mapped, measured by what the hills cost in time. The hardest mile is mile 8, with 223 ft (68 m) of climbing and a 4.2% average grade.
Biggest climbs
- Miles 4.5 to 6.5: climbs about 55 ft (16 m).
- Miles 6.9 to 8.4: climbs about 265 ft (81 m).
- Miles 13.6 to 14.8: climbs about 60 ft (18 m).
What the hills cost
- 3:30 on a flat course is about 3:32 here (2 minutes slower).
- 4:00 on a flat course is about 4:02 here (2 minutes slower).
- 4:30 on a flat course is about 4:32 here (2 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 | 13 ft | 5 ft | 8:00 | 9:09 | 10:17 |
| 2 | 21 ft | 17 ft | 7:59 | 9:07 | 10:16 |
| 3 | 19 ft | 8 ft | 8:02 | 9:11 | 10:20 |
| 4 | 10 ft | 8 ft | 7:57 | 9:05 | 10:13 |
| 5 | 22 ft | 20 ft | 7:58 | 9:06 | 10:14 |
| 6 | 29 ft | 15 ft | 8:03 | 9:12 | 10:22 |
| 7 | 45 ft | 43 ft | 7:58 | 9:06 | 10:14 |
| 8 | 223 ft | 0 ft | 9:56 | 11:21 | 12:46 |
| 9 | 23 ft | 19 ft | 7:59 | 9:08 | 10:16 |
| 10 | 12 ft | 12 ft | 7:56 | 9:04 | 10:12 |
| 11 | 15 ft | 29 ft | 7:53 | 9:01 | 10:09 |
| 12 | 47 ft | 17 ft | 8:12 | 9:22 | 10:32 |
| 13 | 24 ft | 53 ft | 7:49 | 8:56 | 10:03 |
| 14 | 40 ft | 26 ft | 8:04 | 9:13 | 10:22 |
| 15 | 27 ft | 30 ft | 7:55 | 9:03 | 10:12 |
| 16 | 34 ft | 23 ft | 8:02 | 9:11 | 10:19 |
| 17 | 10 ft | 17 ft | 7:55 | 9:03 | 10:11 |
| 18 | 20 ft | 7 ft | 8:03 | 9:12 | 10:20 |
| 19 | 1 ft | 186 ft | 7:20 | 8:23 | 9:26 |
| 20 | 43 ft | 87 ft | 7:46 | 8:53 | 10:00 |
| 21 | 11 ft | 34 ft | 7:51 | 8:58 | 10:05 |
| 22 | 26 ft | 35 ft | 7:55 | 9:02 | 10:10 |
| 23 | 9 ft | 6 ft | 7:58 | 9:06 | 10:15 |
| 24 | 6 ft | 15 ft | 7:54 | 9:02 | 10:10 |
| 25 | 18 ft | 24 ft | 7:55 | 9:03 | 10:10 |
| 26 | 6 ft | 13 ft | 7:55 | 9:03 | 10:11 |
| Last 0.2 | 0 ft | 5 ft | 1:45 | 2:00 | 2:15 |
Explore the Niagara Ultra Races Marathon course with the weather and your pace along the route, or compare it with other races.
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About the Niagara Ultra Races Marathon
The Niagara Ultra Races take place each June in Niagara-on-the-Lake, Ontario, following the Niagara Parkway along the Niagara River toward Niagara Falls. The event offers five distances: 80K, 50K, marathon, half marathon, and 10K. The marathon and half marathon are advertised as Boston Marathon qualifiers. The race is organized by the St. Catharines Roadrunners and Walkers and reached its 32nd running in 2026.
