Breaking 2:55 at the Tamarack Ottawa Marathon
Even splits would be 4:09/km (6:40/mi). But Tamarack Ottawa Marathon isn't flat-even — the plan below redistributes the same finish time across the course the way experienced runners actually race it.
How to pace this course
0–15 km
Flat Ottawa River parkway — ideal for locking in goal pace from the gun
4:08/km (6:39/mi)
15–30 km
Rideau Canal section and turnaround — stay relaxed, conserve for the closing km
4:09/km (6:40/mi)
30–42.2 km
Return to downtown — the War Memorial finish is the reward; hold your pace to the end
4:10/km (6:42/mi)
Split table
| Checkpoint | Split | Elapsed | Pace at this point |
|---|---|---|---|
| 5 km | 20:41 | 20:41 | 4:08/km |
| 10 km | 20:41 | 41:22 | 4:08/km |
| 15 km | 20:41 | 1:02:02 | 4:08/km |
| 20 km | 20:43 | 1:22:46 | 4:09/km |
| Half | 4:33 | 1:27:19 | 4:09/km |
| 25 km | 16:10 | 1:43:29 | 4:09/km |
| 30 km | 20:43 | 2:04:12 | 4:09/km |
| 35 km | 20:50 | 2:25:02 | 4:10/km |
| 40 km | 20:50 | 2:45:51 | 4:10/km |
| Finish | 9:09 | 2:55:00 | 4:10/km |
Print this table or write the elapsed times on your arm — GPS pace is least reliable exactly when you need it most.