1:28 half marathon pace
A 1:28 half marathon is 4:10/km (6:43/mi), 14.4 km/h.
| Change | Time | Pace |
|---|---|---|
| −2:00 | 1:26:00 | 4:056:34 |
| −1:30 | 1:26:30 | 4:066:36 |
| −1:00 | 1:27:00 | 4:076:38 |
| −0:30 | 1:27:30 | 4:096:40 |
| Your target /km | ||
| +0:30 | 1:28:30 | 4:126:45 |
| +1:00 | 1:29:00 | 4:136:47 |
| +1:30 | 1:29:30 | 4:156:50 |
| +2:00 | 1:30:00 | 4:166:52 |
Arrow keys nudge the value. Hold Shift for bigger steps.
Finish times at 4:10 per km
| Distance | Finish time |
|---|---|
| 1K | 4:10 |
| 1 mile | 6:43 |
| 5K | 20:51 |
| 10K | 41:43 |
| 10 miles | 1:07:08 |
| Half marathon | 1:28:00 |
| Marathon | 2:56:00 |
| 50K | 3:28:33 |
Splits for a 1:28 half marathon
| km | Split | Elapsed |
|---|---|---|
| 1 | 4:10 | 4:10 |
| 2 | 4:10 | 8:21 |
| 3 | 4:10 | 12:31 |
| 4 | 4:10 | 16:41 |
| 5 | 4:10 | 20:51 |
| 6 | 4:10 | 25:02 |
| 7 | 4:10 | 29:12 |
| 8 | 4:10 | 33:22 |
| 9 | 4:10 | 37:32 |
| 10 | 4:10 | 41:43 |
| 11 | 4:10 | 45:53 |
| 12 | 4:10 | 50:03 |
| 13 | 4:10 | 54:13 |
| 14 | 4:10 | 58:24 |
| 15 | 4:10 | 1:02:34 |
| 16 | 4:10 | 1:06:44 |
| 17 | 4:10 | 1:10:55 |
| 18 | 4:10 | 1:15:05 |
| 19 | 4:10 | 1:19:15 |
| 20 | 4:10 | 1:23:25 |
| 21 | 4:10 | 1:27:36 |
| Final 0.098 km | 0:24 | 1:28:00 |
| Mile | Split | Elapsed |
|---|---|---|
| 1 | 6:43 | 6:43 |
| 2 | 6:43 | 13:26 |
| 3 | 6:43 | 20:08 |
| 4 | 6:43 | 26:51 |
| 5 | 6:43 | 33:34 |
| 6 | 6:43 | 40:17 |
| 7 | 6:43 | 46:59 |
| 8 | 6:43 | 53:42 |
| 9 | 6:43 | 1:00:25 |
| 10 | 6:43 | 1:07:08 |
| 11 | 6:43 | 1:13:50 |
| 12 | 6:43 | 1:20:33 |
| 13 | 6:43 | 1:27:16 |
| Final 0.109 mi | 0:44 | 1:28:00 |
What a 1:28 half marathon predicts
Estimate| Distance | Estimated time |
|---|---|
| 5K | 19:08 |
| 10K | 39:53 |
| 10 miles | 1:06:03 |
| Marathon | 3:03:28 |
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.
1:25 to 1:40 is where even pacing pays
Bank time early and you’ll give it back, with interest, in the last 5 km. Hold the same pace from the start and let the effort rise instead.
One quality session a week, a tempo run or intervals at goal pace, plus a weekly long run builds most of what you need. Run the rest easy.
You’ll race for well over an hour and a quarter. A gel or sports drink in the second half helps; use one you’ve tried in training.
Pace questions runners ask
- What pace do I need for a 1:28 half marathon?
- A 1:28 half marathon is 4:10/km (6:43/mi), 14.4 km/h, held for the whole race.
- What treadmill speed is 1:28 half marathon pace?
- Set the treadmill to 14.4 km/h or 8.9 mph to run 4:10/km (6:43/mi).
- Where should I be at halfway in a 1:28 half marathon?
- With even pacing you pass halfway in 44:00; with a negative split, a little later.
- What does a 1:28 half marathon predict for other distances?
- The Riegel formula estimates 19:08 for the 5K, 39:53 for the 10K, 1:06:03 for the 10-mile race, 3:03:28 for the marathon, assuming you’ve trained for each distance.