Sarah Wallack
Bib: 39755 F US
Race Timeline
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 | 31:34 | 10:10 | 3.11 mi | 31:34 | 10:10 | - | |
10K | 1:04:29 | 10:23 | 3.10 mi | 32:55 | 10:36 | +0:26 | |
15K | 1:36:23 | 10:21 | 3.11 mi | 31:54 | 10:17 | -0:19 | |
20K | 2:07:14 | 10:15 | 3.11 mi | 30:51 | 9:56 | -0:21 | |
Half(13.10 mi) | 2:14:00 | 10:14 | 0.67 mi | 6:46 | 10:05 | +0:09 | |
25K | 2:38:06 | 10:11 | 2.43 mi | 24:06 | 9:54 | -0:11 | |
30K | 3:09:14 | 10:10 | 3.11 mi | 31:08 | 10:02 | +0:08 | |
35K | 3:40:34 | 10:09 | 3.11 mi | 31:20 | 10:06 | +0:04 | |
40K | 4:10:45 | 10:06 | 3.10 mi | 30:11 | 9:43 | -0:23 | |
Finish(26.22 mi) | 4:23:48 | 10:05 | 1.37 mi | 13:03 | 9:35 | -0:08 |
Checkpoints & Pacing
Pace Line
Fastest Pace
9:35 /mi
Average Pace
10:04 /mi
Slowest Pace
10:36 /mi
Segments
Time at Faster Pace
3:50:53
88% of race
Time at Steady Pace
32:55
12% of race
Time at Slower Pace
0:00
0% of race
Average Pace: 10:04 /mi
Heatmap
Checkpoint and Segment Rankings
| Checkpoint | Seg. Dist | Overall | Females | F18-39 | Seg. Overall | Seg. Females | Seg. F18-39 |
|---|---|---|---|---|---|---|---|
| 5K | 3.11 mi | 40436 | 13629 | 13629 | 35204 | 11106 | 11106 |
| 10K | 3.10 mi | 41282-846 | 14091-462 | 14091-462 | 42155 | 14623 | 14623 |
| 15K | 3.11 mi | 39002+2280 | 12940+1151 | 12940+1151 | 35204 | 11106 | 11106 |
| 20K | 3.11 mi | 37202+1800 | 12124+816 | 12124+816 | 32897 | 10254 | 10254 |
| Half(13.10 mi) | 0.67 mi | 36834+368 | 11979+145 | 11979+145 | 31251 | 9639 | 9639 |
| 25K | 2.43 mi | 35175+1659 | 11245+734 | 11245+734 | 28584 | 8670 | 8670 |
| 30K | 3.11 mi | 33004+2171 | 10442+803 | 10442+803 | 25694 | 7855 | 7855 |
| 35K | 3.11 mi | 30725+2279 | 9697+745 | 9697+745 | 22426 | 7048 | 7048 |
| 40K | 3.10 mi | 28800+1925 | 9086+611 | 9086+611 | 18901 | 6103 | 6103 |
| Finish(26.22 mi) | 1.37 mi | 28172+628 | 8915+171 | 8915+171 | 19594 | 6424 | 6424 |
Segment Performance Analysis
10K→15K
0.0 - 3.1 mi
Overall
35204
Females
11106
F18-39
11106
5K→10K
3.1 - 6.2 mi
Overall
42155
Females
14623
F18-39
14623
10K→15K
6.2 - 9.3 mi
Overall
35204
Females
11106
F18-39
11106
15K→20K
9.3 - 12.4 mi
Overall
32897
Females
10254
F18-39
10254
20K→Half
12.4 - 13.1 mi
Overall
31251
Females
9639
F18-39
9639
Half→25K
13.1 - 15.5 mi
Overall
28584
Females
8670
F18-39
8670
25K→30K
15.5 - 18.6 mi
Overall
25694
Females
7855
F18-39
7855
30K→35K
18.6 - 21.8 mi
Overall
22426
Females
7048
F18-39
7048
35K→40K
21.8 - 24.9 mi
Overall
18901
Females
6103
F18-39
6103
40K→Finish
24.9 - 26.2 mi
Overall
19594
Females
6424
F18-39
6424
Passing Analysis
| Segment | Movement | Rank |
|---|---|---|
| Start → 5K | - | #40436 |
| 5K → 10K | 200200-846 | #40436 → #41282 |
| 10K → 15K | 162296*+2280 | #41282 → #39002 |
| 15K → 20K | 141814*+1800 | #39002 → #37202 |
| 20K → Half | 2370*+368 | #37202 → #36834 |
| Half → 25K | 31662*+1659 | #36834 → #35175 |
| 25K → 30K | 92180+2171 | #35175 → #33004 |
| 30K → 35K | 152294*+2279 | #33004 → #30725 |
| 35K → 40K | 81933*+1925 | #30725 → #28800 |
| 40K → Finish | 8636*+628 | #28800 → #28172 |
| TOTALS | 27513385*+12264 | #40436 → #28172 |
* Includes athletes who did not complete a segment (DNF/DNQ).
Passing Visualized
Passing Circle
Position Flow
Race Lanes
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Race managed by
London Marathon Events
Race timed by
Mika Timing
