50-minute 10K pace
A 50-minute 10K is 5:00 per km or 8:03 per mile, with halfway at 25:00. Every mile and km split, the arithmetic, and how to train for sub-50.
Every split for 50:00
Cumulative clock time at each mile or kilometre marker on even pace, for 0:48:00, 0:50:00 and 0:52:00. Switch units with the toggle. Formula: goal seconds × distance covered ÷ race distance.
| Mile |
|---|
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
| 6 |
| 6.21 |
Cumulative clock time at each mile marker, at perfectly even pace over 10 km. Nobody runs even splits and nobody should try to; use these as the line you are measuring drift against, not as an instruction. The difference between the number here and the number on your watch is information — a minute up at 15 km is a race you are about to lose.
Your exact pace
The chart moves in fixed steps. Enter the 10K time you actually want.
- Per mile
- 8:03
- Per km
- 5:00
- Speed
- 7.46 mph
average pace
average pace
on a treadmill
Checkpoints at even pace
- 1 mi
- 8:03
- 2 mi
- 16:06
- 4 mi
- 32:11
- 6 mi
- 48:17
The same goal as a 1% negative split
- First half
- 25:15
- Second half
- 24:45
8:08 /mi
7:58 /mi
Pace band: every mile, ready to print
Band
10K 50:00 · 1% negative split · per mile
- 18:08
- 216:15
- 324:23
- 432:22
- 540:20
- 648:18
- 6.250:00
Even-pace arithmetic: goal seconds × distance covered ÷ race distance. It assumes you can hold the pace, which is the part training decides.
A plan for a 50:00 10K
Your plan · free preview
12-week 10k plan
Intermediate · 4 runs a week
Starts next Monday
Level
Length
- Longest run
- 9.9mi
- Biggest week
- 22mi
- Whole plan
- 158mi
- Goal pace
- 8:03/mi
Goal pace is arithmetic: 50:00 ÷ 6.2 mi. It is not a training zone.
Train for this in Runsy
$12.99/mo after a 7-day free trial. iPhone only.
The app builds your own plan when you set it up; this preview is a guide.
Week by week · 12 weeks · in miles
| Week | Phase | Long run | Total |
|---|---|---|---|
| 1 | base | 4.3 | 8.7 |
| 2 | base | 5 | 11 |
| 3 | base | 5.6 | 12 |
| 4 | cutback | 3.7 | 8.1 |
| 5 | build | 6.2 | 14 |
| 6 | build | 7.5 | 16 |
| 7 | build | 8.7 | 19 |
| 8 | cutback | 6.2 | 14 |
| 9 | peak | 9.9 | 22 |
| 10 | taper | 6.2 | 14 |
| 11 | taper | 4.3 | 8.7 |
| 12 | race | 6.2 | 11 |
The pace, and the arithmetic
A 50-minute 10K is 8:03 per mile, or 5:00 per kilometre, held for 6.2 miles (10 km). On even pace you pass 5 km at 25:00 and 5 miles at 40:14. To finish under 50:00, run 8:02 per mile, which finishes in 49:55.
How the numbers are worked out
- 50:00 is 3,000 seconds.
- Per mile: 3,000 ÷ 6.2137 miles = 482.8 s = 8:03.
- Per kilometre: 3,000 ÷ 10 km = 300.0 s = 5:00.
- At 5 km: 3,000 × 5 ÷ 10 = 1,500.0 s = 25:00.
- At 5 miles: 3,000 × 5 ÷ 6.2137 = 2,414.0 s = 40:14.
- At 8 km: 3,000 × 8 ÷ 10 = 2,400.0 s = 40:00.
- Speed: 6.2137 miles ÷ 0.833333 h = 7.46 mph (12.00 km/h).
Every split on this page uses one formula: goal seconds × distance covered ÷ race distance, rounded to the nearest second. A mile is 1.609344 km, so the 10K is 6.2137 miles. The 10K pace chart applies the same formula to every realistic finish time.
| Finish | /mi | /km |
|---|---|---|
| 46:00 | 7:24 | 4:36 |
| 48:00 | 7:43 | 4:48 |
| 50:00 | 8:03 | 5:00 |
| 52:00 | 8:22 | 5:12 |
| 54:00 | 8:41 | 5:24 |
Checkpoints are even-pace clock times for the 10K (10 km / 6.21 mi), on mile markers or kilometre markers to match the toggle. Underlined times open that goal's page, with every split.
Where 50:00 sits in the field
RunRepeat's finish-time percentiles (35M results across 28,000+ races, as printed on our average 10K time page) place 50:00 between the fastest 10% (48:11) and the fastest 20% (52:47) of all finishers. For men it sits between the fastest 20% (49:37) and the fastest 30% (52:28); for women, between the fastest 1% (41:12) and the fastest 10% (53:35).
Read the other way: sub-50 beats more than 80% of all 10K finishers in that data, and for women it is inside the fastest 10%.
How to train for a sub-50 10K
Check the goal before you train for it. Riegel's formula, T2 = T1 × (D2 ÷ D1)^1.06 (Riegel, American Scientist 69(3), 1981), says 50:00 for the 10K is worth:
- 5K: 3,000 × (5 ÷ 10)^1.06 = 1,439 s = 23:59.
- Half marathon: 3,000 × (21.0975 ÷ 10)^1.06 = 6,619 s = 1:50:19.
Our VDOT calculator puts a 50:00 10K at VDOT 40.0. Riegel is most reliable over short jumps like this one; the half figure assumes you have done the long runs. Run your own recent result through the race time predictor, and use the VDOT calculator to turn it into training paces.
Then pick a plan. The intermediate level fits a sub-50 attempt: it assumes a 10K behind you and a target time in mind. The free 8-week intermediate 10K plan is 4 runs a week, peaking at 23 km with a 10 km long run, with cutback weeks and a taper. Rehearse 5:00 per km in tempo sections and intervals, and keep the easy runs genuinely easy.
Stop calculating. Start training.
Runsy sets your paces from your real runs, then keeps them current.
Runsy is on iPhone
Point your iPhone camera at the code to open it in the App Store.
Runsy is iPhone-only for now.
The plans, pace charts and calculators on this site are free on any phone, with no account.
$12.99/mo after a 7-day free trialiPhone only
$12.99/mo after a 7-day free trialiPhone only
Fair questions
What pace is a 50-minute 10K?
5:00 per kilometre, or 8:03 per mile: 3,000 seconds ÷ 10 km = 300 s, and ÷ 6.2137 miles = 482.8 s. Halfway comes at 25:00 and 5 miles at 40:14.
Is a 50-minute 10K good?
Yes, by the published numbers. RunRepeat's finish-time percentiles put the fastest 20% of 10K finishers at 52:47 or better and the fastest 10% at 48:11, so 50:00 sits between them. For women the fastest-10% mark is 53:35, so a 50:00 woman is inside it.
What 5K time do I need for a sub-50 10K?
About 23:59 by Riegel's formula: 3,000 × (5 ÷ 10)^1.06.
What half marathon time does a 50-minute 10K predict?
About 1:50:19 by Riegel's formula (3,000 × (21.0975 ÷ 10)^1.06), assuming you have done the long runs.