Breaking 3:45 at the Osaka Marathon
Even splits would be 5:20/km (8:35/mi). But Osaka 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
0–30 km
5:19/km (8:33/mi)
30–36 km
The course's one real rise — hold effort, not pace
5:26/km (8:44/mi)
36–42.2 km
5:19/km (8:34/mi)
Split table
| Checkpoint | Split | Elapsed | Pace at this point |
|---|---|---|---|
| 5 km | 26:34 | 26:34 | 5:19/km |
| 10 km | 26:34 | 53:08 | 5:19/km |
| 15 km | 26:34 | 1:19:43 | 5:19/km |
| 20 km | 26:34 | 1:46:17 | 5:19/km |
| Half | 5:50 | 1:52:07 | 5:19/km |
| 25 km | 20:44 | 2:12:51 | 5:19/km |
| 30 km | 26:34 | 2:39:25 | 5:19/km |
| 35 km | 27:09 | 3:06:35 | 5:26/km |
| 40 km | 26:44 | 3:33:19 | 5:19/km |
| Finish | 11:41 | 3:45:00 | 5:19/km |
Print this table or write the elapsed times on your arm — GPS pace is least reliable exactly when you need it most.