Breaking 3:00 at the Tamarack Ottawa Marathon
Even splits would be 4:16/km (6:52/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
4:15/km (6:51/mi)
15–30 km
Rideau Canal section and turnaround — stay relaxed, conserve for the closing km
4:16/km (6:52/mi)
30–42.2 km
Return to downtown — the War Memorial finish is the reward; hold your pace to the end
4:17/km (6:54/mi)
Split table
| Checkpoint | Split | Elapsed | Pace at this point |
|---|---|---|---|
| 5 km | 21:16 | 21:16 | 4:15/km |
| 10 km | 21:16 | 42:33 | 4:15/km |
| 15 km | 21:16 | 1:03:49 | 4:15/km |
| 20 km | 21:19 | 1:25:08 | 4:16/km |
| Half | 4:41 | 1:29:48 | 4:16/km |
| 25 km | 16:38 | 1:46:26 | 4:16/km |
| 30 km | 21:19 | 2:07:45 | 4:16/km |
| 35 km | 21:25 | 2:29:11 | 4:17/km |
| 40 km | 21:25 | 2:50:36 | 4:17/km |
| Finish | 9:24 | 3:00:00 | 4:17/km |
Print this table or write the elapsed times on your arm — GPS pace is least reliable exactly when you need it most.