Simon Horsfall
Bib: 5667 M GB
Race Timeline
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The Course
Half Splits
Your race, unpacked
See your splits, ranks & AI insights.
Checkpoint Splits
| Checkpoint | Time | Avg Pace | Segment Length | Segment Time | Segment Pace | Trend | Diff |
|---|---|---|---|---|---|---|---|
5K | 21:13 | 6:50 | 3.11 mi | 21:13 | 6:50 | - | |
10K | 41:52 | 6:45 | 3.10 mi | 20:39 | 6:39 | -0:11 | |
15K | 1:03:11 | 6:47 | 3.11 mi | 21:19 | 6:52 | +0:13 | |
20K | 1:24:03 | 6:46 | 3.11 mi | 20:52 | 6:43 | -0:09 | |
Half(13.10 mi) | 1:28:40 | 6:47 | 0.67 mi | 4:37 | 6:53 | +0:10 | |
25K | 1:45:29 | 6:48 | 2.43 mi | 16:49 | 6:55 | +0:02 | |
30K | 2:07:00 | 6:49 | 3.11 mi | 21:31 | 6:56 | +0:01 | |
35K | 2:30:42 | 6:56 | 3.11 mi | 23:42 | 7:38 | +0:42 | |
40K | 2:55:42 | 7:05 | 3.10 mi | 25:00 | 8:03 | +0:25 | |
Finish(26.22 mi) | 3:07:05 | 7:09 | 1.37 mi | 11:23 | 8:21 | +0:18 |
Checkpoints & Pacing
Pace Line
Fastest Pace
6:39 /mi
Average Pace
7:08 /mi
Slowest Pace
8:21 /mi
Segments
Time at Faster Pace
0:00
0% of race
Time at Steady Pace
2:07:00
68% of race
Time at Slower Pace
1:00:05
32% of race
Average Pace: 7:08 /mi
Heatmap
Checkpoint and Segment Rankings
| Checkpoint | Seg. Dist | Overall | Males | M40-44 | Seg. Overall | Seg. Males | Seg. M40-44 |
|---|---|---|---|---|---|---|---|
| 5K | 3.11 mi | 4772 | 4295 | 4295 | 3476 | 3226 | 3226 |
| 10K | 3.10 mi | 3796+976 | 3490+805 | 3490+805 | 3105 | 2897 | 2897 |
| 15K | 3.11 mi | 3667+129 | 3383+107 | 3383+107 | 3476 | 3226 | 3226 |
| 20K | 3.11 mi | 3628+39 | 3349+34 | 3349+34 | 3625 | 3364 | 3364 |
| Half(13.10 mi) | 0.67 mi | 3613+15 | 3336+13 | 3336+13 | 3619 | 3371 | 3371 |
| 25K | 2.43 mi | 3687-74 | 3404-68 | 3404-68 | 4321 | 3950 | 3950 |
| 30K | 3.11 mi | 3595+92 | 3333+71 | 3333+71 | 3380 | 3126 | 3126 |
| 35K | 3.11 mi | 3997-402 | 3654-321 | 3654-321 | 5603 | 4717 | 4717 |
| 40K | 3.10 mi | 4226-229 | 3804-150 | 3804-150 | 7264 | 5662 | 5662 |
| Finish(26.22 mi) | 1.37 mi | 4355-129 | 3884-80 | 3884-80 | 9881 | 7213 | 7213 |
Segment Performance Analysis
10K→15K
0.0 - 3.1 mi
Overall
3476
Males
3226
M40-44
3226
5K→10K
3.1 - 6.2 mi
Overall
3105
Males
2897
M40-44
2897
10K→15K
6.2 - 9.3 mi
Overall
3476
Males
3226
M40-44
3226
15K→20K
9.3 - 12.4 mi
Overall
3625
Males
3364
M40-44
3364
20K→Half
12.4 - 13.1 mi
Overall
3619
Males
3371
M40-44
3371
Half→25K
13.1 - 15.5 mi
Overall
4321
Males
3950
M40-44
3950
25K→30K
15.5 - 18.6 mi
Overall
3380
Males
3126
M40-44
3126
30K→35K
18.6 - 21.8 mi
Overall
5603
Males
4717
M40-44
4717
35K→40K
21.8 - 24.9 mi
Overall
7264
Males
5662
M40-44
5662
40K→Finish
24.9 - 26.2 mi
Overall
9881
Males
7213
M40-44
7213
Passing Analysis
| Segment | Movement | Rank |
|---|---|---|
| Start → 5K | - | #4772 |
| 5K → 10K | 2978+976 | #4772 → #3796 |
| 10K → 15K | 33162+129 | #3796 → #3667 |
| 15K → 20K | 4786+39 | #3667 → #3628 |
| 20K → Half | 1328+15 | #3628 → #3613 |
| Half → 25K | 11945-74 | #3613 → #3687 |
| 25K → 30K | 64156+92 | #3687 → #3595 |
| 30K → 35K | 47169-402 | #3595 → #3997 |
| 35K → 40K | 32091-229 | #3997 → #4226 |
| 40K → Finish | 16536-129 | #4226 → #4355 |
| TOTALS | 12341651+417 | #4772 → #4355 |
Passing Visualized
Passing Circle
Position Flow
Race Lanes
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Public Race Data
Enhanced athlete results built from publicly available data.
Race managed by
London Marathon Events
Race timed by
Mika Timing
