1:15 Half MarathonPace Chart & Split Guide
Pace chart for a 1:15 half marathon with mile and kilometer splits, plus modelled 5K and 10K race equivalents.
1:15 Half Marathon
Pace/km
3:33
Pace/mi
5:43
Distance
21.1km
Avg Speed
16.9km/h
Kilometer Splits
| KM | Split | Elapsed |
|---|---|---|
| 1 | 3:33 | 3:33 |
| 2 | 3:33 | 7:07 |
| 3 | 3:33 | 10:40 |
| 4 | 3:33 | 14:13 |
| 5 | 3:33 | 17:46 |
| 6 | 3:33 | 21:20 |
| 7 | 3:33 | 24:53 |
| 8 | 3:33 | 28:26 |
| 9 | 3:33 | 32:00 |
| 10 | 3:33 | 35:33 |
| 11 | 3:33 | 39:06 |
| 12 | 3:33 | 42:40 |
| 13 | 3:33 | 46:13 |
| 14 | 3:33 | 49:46 |
| 15 | 3:33 | 53:19 |
| 16 | 3:33 | 56:53 |
| 17 | 3:33 | 1:00:26 |
| 18 | 3:33 | 1:03:59 |
| 19 | 3:33 | 1:07:33 |
| 20 | 3:33 | 1:11:06 |
| 21 | 3:33 | 1:14:39 |
| 21.10Finish | 0:21 | 1:15:00 |
Mile Splits
| Mile | Split | Elapsed |
|---|---|---|
| 1 | 5:43 | 5:43 |
| 2 | 5:43 | 11:27 |
| 3 | 5:43 | 17:10 |
| 4 | 5:43 | 22:53 |
| 5 | 5:43 | 28:36 |
| 6 | 5:43 | 34:20 |
| 7 | 5:43 | 40:03 |
| 8 | 5:43 | 45:46 |
| 9 | 5:43 | 51:29 |
| 10 | 5:43 | 57:13 |
| 11 | 5:43 | 1:02:56 |
| 12 | 5:43 | 1:08:39 |
| 13 | 5:43 | 1:14:22 |
| 13.11Finish | 0:38 | 1:15:00 |
Modelled race equivalents for a 1:15 half marathon
If this result represents current race fitness, the standard Riegel model (k=1.06) estimates the comparison times below. They are model outputs, not guaranteed performances; terrain, conditions, pacing, fueling, and distance-specific preparation still matter.
5K
16:18
10K
34:00
Marathon
2:36:22
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Pacing Notes for Your 1:15 Half Marathon
Half Marathon Pace Considerations
- Use the split table to rehearse pacing, then adjust it for course and weather.
- Only use fueling and equipment that you have already tested in training.
- Check effort as well as pace; GPS and terrain can distort individual splits.
- A goal time alone cannot determine safe weekly mileage or workout volume.
Race Execution Prompts
Mindset
Treat the goal as a pacing hypothesis and respond to conditions and effort.
Pacing
Start controlled, monitor average pace over stable segments, and adjust rather than forcing a failing plan.
Frequently Asked Questions
What pace do I need to run a 1:15 half marathon?
The mathematical average is 3:33 per kilometer or 5:43 per mile. Course distance, GPS error, hills, wind, and aid-station time can change the pace you see on race day.
Does a 1:15 goal determine my training plan?
No. Goal time alone cannot determine safe mileage, workout volume, or recovery. Use current training history and recent performance with a qualified coach or an established plan.
Does this page prescribe nutrition or gear?
No. Fuel, hydration, footwear, and equipment are individual decisions that should be tested in training; this page calculates pacing and splits only.
What 5K and 10K times are equivalent to a 1:15 half marathon?
Using the standard Riegel model with k=1.06, the comparison times are 16:18 for 5K and 34:00 for 10K. These are modelled scenarios, not guarantees of race performance.
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