43:00 10K pace
A 43:00 10K is 4:18/km (6:55/mi), 14.0 km/h.
| Change | Time | Pace |
|---|---|---|
| −1:00 | 42:00 | 4:126:46 |
| −0:45 | 42:15 | 4:146:48 |
| −0:30 | 42:30 | 4:156:50 |
| −0:15 | 42:45 | 4:176:53 |
| Your target /km | ||
| +0:15 | 43:15 | 4:206:58 |
| +0:30 | 43:30 | 4:217:00 |
| +0:45 | 43:45 | 4:237:02 |
| +1:00 | 44:00 | 4:247:05 |
Arrow keys nudge the value. Hold Shift for bigger steps.
Finish times at 4:18 per km
| Distance | Finish time |
|---|---|
| 1K | 4:18 |
| 1 mile | 6:55 |
| 5K | 21:30 |
| 10K | 43:00 |
| 10 miles | 1:09:12 |
| Half marathon | 1:30:43 |
| Marathon | 3:01:26 |
| 50K | 3:35:00 |
Splits for a 43:00 10K
| km | Split | Elapsed |
|---|---|---|
| 1 | 4:18 | 4:18 |
| 2 | 4:18 | 8:36 |
| 3 | 4:18 | 12:54 |
| 4 | 4:18 | 17:12 |
| 5 | 4:18 | 21:30 |
| 6 | 4:18 | 25:48 |
| 7 | 4:18 | 30:06 |
| 8 | 4:18 | 34:24 |
| 9 | 4:18 | 38:42 |
| 10 | 4:18 | 43:00 |
| Mile | Split | Elapsed |
|---|---|---|
| 1 | 6:55 | 6:55 |
| 2 | 6:55 | 13:50 |
| 3 | 6:55 | 20:46 |
| 4 | 6:55 | 27:41 |
| 5 | 6:55 | 34:36 |
| 6 | 6:55 | 41:31 |
| Final 0.214 mi | 1:29 | 43:00 |
What a 43:00 10K predicts
Estimate| Distance | Estimated time |
|---|---|
| 5K | 20:37 |
| 10 miles | 1:11:12 |
| Half marathon | 1:34:53 |
| Marathon | 3:17:49 |
These are estimates from the Riegel formula, T2 = T1 × (D2 ÷ D1)^1.06. They assume you’ve trained for the other distance, so treat them as a guide, not a promise.
From 40 to 45 minutes, kilometres 6 to 8 are the hard part
Run the first half on goal pace. Between 6 and 8 km the effort climbs, and that’s where the pace must not drop.
A weekly session of 1 to 2 km repeats at goal pace teaches you the rhythm. Add one longer easy run each week.
No fuel needed during the race. Take a drink at the station if it’s warm.
Pace questions runners ask
- What pace do I need for a 43:00 10K?
- A 43:00 10K is 4:18/km (6:55/mi), 14.0 km/h, held for the whole race.
- What treadmill speed is 43:00 10K pace?
- Set the treadmill to 14.0 km/h or 8.7 mph to run 4:18/km (6:55/mi).
- Where should I be at halfway in a 43:00 10K?
- With even pacing you pass halfway in 21:30; with a negative split, a little later.
- What does a 43:00 10K predict for other distances?
- The Riegel formula estimates 20:37 for the 5K, 1:11:12 for the 10-mile race, 1:34:53 for the half marathon, 3:17:49 for the marathon, assuming you’ve trained for each distance.