1:42 half marathon pace
A 1:42 half marathon is 4:50/km (7:47/mi), 12.4 km/h.
| Change | Time | Pace |
|---|---|---|
| −2:00 | 1:40:00 | 4:447:38 |
| −1:30 | 1:40:30 | 4:467:40 |
| −1:00 | 1:41:00 | 4:477:42 |
| −0:30 | 1:41:30 | 4:497:45 |
| Your target /km | ||
| +0:30 | 1:42:30 | 4:527:49 |
| +1:00 | 1:43:00 | 4:537:51 |
| +1:30 | 1:43:30 | 4:547:54 |
| +2:00 | 1:44:00 | 4:567:56 |
Arrow keys nudge the value. Hold Shift for bigger steps.
Finish times at 4:50 per km
| Distance | Finish time |
|---|---|
| 1K | 4:50 |
| 1 mile | 7:47 |
| 5K | 24:10 |
| 10K | 48:21 |
| 10 miles | 1:17:48 |
| Half marathon | 1:42:00 |
| Marathon | 3:24:00 |
| 50K | 4:01:44 |
Splits for a 1:42 half marathon
| km | Split | Elapsed |
|---|---|---|
| 1 | 4:50 | 4:50 |
| 2 | 4:50 | 9:40 |
| 3 | 4:50 | 14:30 |
| 4 | 4:50 | 19:20 |
| 5 | 4:50 | 24:10 |
| 6 | 4:50 | 29:00 |
| 7 | 4:50 | 33:51 |
| 8 | 4:50 | 38:41 |
| 9 | 4:50 | 43:31 |
| 10 | 4:50 | 48:21 |
| 11 | 4:50 | 53:11 |
| 12 | 4:50 | 58:01 |
| 13 | 4:50 | 1:02:51 |
| 14 | 4:50 | 1:07:41 |
| 15 | 4:50 | 1:12:31 |
| 16 | 4:50 | 1:17:21 |
| 17 | 4:50 | 1:22:11 |
| 18 | 4:50 | 1:27:01 |
| 19 | 4:50 | 1:31:52 |
| 20 | 4:50 | 1:36:42 |
| 21 | 4:50 | 1:41:32 |
| Final 0.098 km | 0:28 | 1:42:00 |
| Mile | Split | Elapsed |
|---|---|---|
| 1 | 7:47 | 7:47 |
| 2 | 7:47 | 15:34 |
| 3 | 7:47 | 23:21 |
| 4 | 7:47 | 31:07 |
| 5 | 7:47 | 38:54 |
| 6 | 7:47 | 46:41 |
| 7 | 7:47 | 54:28 |
| 8 | 7:47 | 1:02:15 |
| 9 | 7:47 | 1:10:02 |
| 10 | 7:47 | 1:17:48 |
| 11 | 7:47 | 1:25:35 |
| 12 | 7:47 | 1:33:22 |
| 13 | 7:47 | 1:41:09 |
| Final 0.109 mi | 0:51 | 1:42:00 |
What a 1:42 half marathon predicts
Estimate| Distance | Estimated time |
|---|---|
| 5K | 22:10 |
| 10K | 46:14 |
| 10 miles | 1:16:33 |
| Marathon | 3:32:40 |
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.
Between 1:40 and 1:55, a few seconds per km change the goal
Two round-number goals sit in this band, 1:45 and 1:50. The ladder above shows how few seconds per km separate them, which makes it easier to pick the one you can hold.
Easy long runs and one session a week at goal pace or a little quicker get most runners here. Practise goal pace near the end of a long run, when your legs are tired.
Plan a gel or a few mouthfuls of sports drink around halfway, and take water when it’s offered.
Pace questions runners ask
- What pace do I need for a 1:42 half marathon?
- A 1:42 half marathon is 4:50/km (7:47/mi), 12.4 km/h, held for the whole race.
- What treadmill speed is 1:42 half marathon pace?
- Set the treadmill to 12.4 km/h or 7.7 mph to run 4:50/km (7:47/mi).
- Where should I be at halfway in a 1:42 half marathon?
- With even pacing you pass halfway in 51:00; with a negative split, a little later.
- What does a 1:42 half marathon predict for other distances?
- The Riegel formula estimates 22:10 for the 5K, 46:14 for the 10K, 1:16:33 for the 10-mile race, 3:32:40 for the marathon, assuming you’ve trained for each distance.