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LONDON MARATHON MASS 2026

Laura Butler

Bib: 31344 F GB

0:00
0:00
/ mi
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Overall
#0 / 59786
Gender (Female)
#0 / 26115
Division (F18-39)
#0 / 14744
Race Day Weather
56°/46°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
11:54/mi
36:57
↑ 49↓ 125
10K· 6.21 mi
12:51/mi
1:16:52
↑ 50↓ 81
15K· 9.32 mi
15:21/mi
2:04:32
↑ 44↓ 51
20K· 12.43 mi
14:20/mi
2:49:03
↑ 67↓ 40
Half· 13.10 mi
14:32/mi
2:58:48
↓ 27
25K· 15.53 mi
18:36/mi
3:44:04
↑ 50↓ 63
30K· 18.64 mi
16:14/mi
4:34:29
↑ 69↓ 46
35K· 21.75 mi
18:36/mi
5:32:16
↑ 87↓ 88
40K· 24.85 mi
18:01/mi
6:28:12
↑ 58↓ 75
Finish· 26.22 mi
15:13/mi
6:48:56
↑ 14↓ 18
Course Elevation
6–172 ft
≈
×14story building
•▲ 503 ft climb · ▼ 613 ft descent

The Course

Half Splits

1st Half· via Half
2:58:4813:40 /mi⚡ faster
2nd Half
3:50:0817:33 /mi+28.7%
Positive split — 28.7% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
36:5711:543.11 mi36:57
11:54
-
10K
1:16:5212:233.10 mi39:55
12:51
+0:57
15K
2:04:3213:223.11 mi47:40
15:21
+2:30
20K
2:49:0313:373.11 mi44:31
14:20
-1:01
Half(13.10 mi)
2:58:4813:400.67 mi9:45
14:32
+0:12
25K
3:44:0414:262.43 mi45:16
18:36
+4:04
30K
4:34:2914:443.11 mi50:25
16:14
-2:22
35K
5:32:1615:173.11 mi57:47
18:36
+2:22
40K
6:28:1215:383.10 mi55:56
18:01
-0:35
Finish(26.22 mi)
6:48:5615:371.37 mi20:44
15:13
-2:48
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

11:54 /mi

Average Pace

15:36 /mi

Slowest Pace

18:36 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:16:52

19% of race

Time at Steady Pace

2:53:05

42% of race

Time at Slower Pace

2:38:59

39% of race

Average Pace: 15:36 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi536542165521655579282474924749
10K3.10 mi54376-72222174-51922174-519549332261322613
15K3.11 mi56165-178923461-128723461-1287579282474924749
20K3.11 mi56029+13623393+6823393+68555652320623206
Half(13.10 mi)0.67 mi55982+4723363+3023363+30550042304523045
25K2.43 mi56884-90224021-65824021-658585502524225242
30K3.11 mi56763+12123972+4923972+49557982358723587
35K3.11 mi57212-44924313-34124313-341582332519725197
40K3.10 mi57511-29924521-20824521-208582462519425194
Finish(26.22 mi)1.37 mi57433+7824484+3724484+37548842338023380

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×10story building
+49ft-125ft

Overall

57928

Females

24749

F18-39

24749

5K→10K

3.1 - 6.2 mi

Top 92%
×4story building
+50ft-81ft

Overall

54933

Females

22613

F18-39

22613

10K→15K

6.2 - 9.3 mi

Top 97%
×1story
+44ft-51ft

Overall

57928

Females

24749

F18-39

24749

15K→20K

9.3 - 12.4 mi

Top 93%
×3story building
+67ft-40ft

Overall

55565

Females

23206

F18-39

23206

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+8ft-27ft

Overall

55004

Females

23045

F18-39

23045

Half→25K

13.1 - 15.5 mi

Top 98%
×2story building
+50ft-63ft

Overall

58550

Females

25242

F18-39

25242

25K→30K

15.5 - 18.6 mi

Top 93%
×2story building
+69ft-46ft

Overall

55798

Females

23587

F18-39

23587

30K→35K

18.6 - 21.8 mi

Top 97%
×2story building
+87ft-88ft

Overall

58233

Females

25197

F18-39

25197

35K→40K

21.8 - 24.9 mi

Top 97%
×3story building
+58ft-75ft

Overall

58246

Females

25194

F18-39

25194

40K→Finish

24.9 - 26.2 mi

Top 92%
×1story
+14ft-18ft

Overall

54884

Females

23380

F18-39

23380

Passing Analysis

Category:
▼Net Change
0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#53654
5K → 10K
1073351-722
#53654 → #54376
10K → 15K
181930-1789
#54376 → #56165
15K → 20K
223359+136
#56165 → #56029
20K → Half
5299+47
#56029 → #55982
Half → 25K
97573-902
#55982 → #56884
25K → 30K
140261+121
#56884 → #56763
30K → 35K
49647-449
#56763 → #57212
35K → 40K
32829-299
#57212 → #57511
40K → Finish
1391+78
#57511 → #57433
TOTALS
51191340-3779
#53654 → #57433

Passing Visualized

Category:
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Passing Circle

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Position Flow

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Race Lanes

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Public Race Data

London Marathon Events

London Marathon Events

Mika Timing

Mika Timing