Sub-50 10K pace (50:00)
A 50-minute (sub-50) 10K is 5:00/km (8:03/mi), 12.0 km/h.
| Change | Time | Pace |
|---|---|---|
| −1:00 | 49:00 | 4:547:53 |
| −0:45 | 49:15 | 4:567:56 |
| −0:30 | 49:30 | 4:577:58 |
| −0:15 | 49:45 | 4:598:00 |
| Your target /km | ||
| +0:15 | 50:15 | 5:028:05 |
| +0:30 | 50:30 | 5:038:08 |
| +0:45 | 50:45 | 5:058:10 |
| +1:00 | 51:00 | 5:068:12 |
Arrow keys nudge the value. Hold Shift for bigger steps.
Finish times at 5:00 per km
| Distance | Finish time |
|---|---|
| 1K | 5:00 |
| 1 mile | 8:03 |
| 5K | 25:00 |
| 10K | 50:00 |
| 10 miles | 1:20:28 |
| Half marathon | 1:45:29 |
| Marathon | 3:30:59 |
| 50K | 4:10:00 |
Splits for a 50:00 10K
| km | Split | Elapsed |
|---|---|---|
| 1 | 5:00 | 5:00 |
| 2 | 5:00 | 10:00 |
| 3 | 5:00 | 15:00 |
| 4 | 5:00 | 20:00 |
| 5 | 5:00 | 25:00 |
| 6 | 5:00 | 30:00 |
| 7 | 5:00 | 35:00 |
| 8 | 5:00 | 40:00 |
| 9 | 5:00 | 45:00 |
| 10 | 5:00 | 50:00 |
| Mile | Split | Elapsed |
|---|---|---|
| 1 | 8:03 | 8:03 |
| 2 | 8:03 | 16:06 |
| 3 | 8:03 | 24:08 |
| 4 | 8:03 | 32:11 |
| 5 | 8:03 | 40:14 |
| 6 | 8:03 | 48:17 |
| Final 0.214 mi | 1:43 | 50:00 |
What a 50:00 10K predicts
Estimate| Distance | Estimated time |
|---|---|
| 5K | 23:59 |
| 10 miles | 1:22:48 |
| Half marathon | 1:50:19 |
| Marathon | 3:50:01 |
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.
Sub-50 is a pacing job
Under 50 minutes is a common target once finishing a 10K feels comfortable. Settle into goal pace by the first kilometre marker and check it every kilometre after that.
One session a week at or just under goal pace, plus regular easy runs, builds most of the speed you need.
If the course has a water station, a mouthful is plenty.
Pace questions runners ask
- What pace do I need for a 50:00 10K?
- A 50:00 10K is 5:00/km (8:03/mi), 12.0 km/h, held for the whole race.
- What treadmill speed is 50:00 10K pace?
- Set the treadmill to 12.0 km/h or 7.5 mph to run 5:00/km (8:03/mi).
- Where should I be at halfway in a 50:00 10K?
- With even pacing you pass halfway in 25:00; with a negative split, a little later.
- What does a 50:00 10K predict for other distances?
- The Riegel formula estimates 23:59 for the 5K, 1:22:48 for the 10-mile race, 1:50:19 for the half marathon, 3:50:01 for the marathon, assuming you’ve trained for each distance.