Run Pace 1:45 Half Marathon Pace
Required pace: 4:59 /km · 8:01 /mileFinish time 1:45:00
A 1:45 half marathon is the point where 5:00 per kilometre stops being quite enough. You need 4:59, so treat 5:00 on your watch as the slowest you can allow, not the target.
Pass 5K in about 24:53 and 10K in 49:46. Those two checkpoints tell you early whether the pace is right or whether the crowd pulled you out too fast.
Distance
Hours
Minutes
Seconds
← FasterSlower →
Required pace
4:59min/km
1:45:00
Finish
8:01
min/mi
12.1
km/h
| Checkpoint | Distance | Elapsed time |
|---|---|---|
| 5K | 5 km | 24:53 |
| 10K | 10 km | 49:46 |
| Finish | 21.1 km | 1:45:00 |
| Mile | Elapsed time |
|---|---|
| 1 mi | 8:01 |
| 2 mi | 16:01 |
| 3 mi | 24:02 |
| 4 mi | 32:02 |
| 5 mi | 40:03 |
| 6 mi | 48:03 |
| 7 mi | 56:04 |
| 8 mi | 1:04:05 |
| 9 mi | 1:12:05 |
| 10 mi | 1:20:06 |
| 11 mi | 1:28:06 |
| 12 mi | 1:36:07 |
| 13 mi | 1:44:07 |
| 13.1 mi | 1:45:00 |
1:45 half marathon pace band
KM 1
4:59
KM 2
9:57
KM 3
14:56
KM 4
19:54
KM 5
24:53
KM 6
29:52
KM 7
34:50
KM 8
39:49
KM 9
44:48
KM 10
49:46
KM 11
54:45
KM 12
59:43
KM 13
1:04:42
KM 14
1:09:41
KM 15
1:14:39
KM 16
1:19:38
KM 17
1:24:36
KM 18
1:29:35
KM 19
1:34:34
KM 20
1:39:32
KM 21
1:44:31
KM 21.1
1:45:00
| Race | Time | Pace (min/km) | Pace (min/mile) |
|---|---|---|---|
| 5K | 22:50 | 4:34 | 7:21 |
| 10K | 47:35 | 4:46 | 7:40 |
| 10 Miles | 1:18:48 | 4:54 | 7:53 |
| Marathon | 3:38:55 | 5:11 | 8:21 |
Predicted with the Riegel formula (t2 = t1 × (d2/d1)^1.06). It is most reliable between similar distances.
Frequently asked questions
What pace do I need for a 1:45 half marathon?
Hold 4:59 per kilometre, close to 8:01 per mile. A flat 5:00 per kilometre finishes in about 1:45:29.
What marathon time does a 1:45 half predict?
The Riegel formula turns a 1:45 half into a marathon of roughly 3:39. Many runners land closer to 3:45 on their first marathon, which is still a strong result.