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LONDON MARATHON MASS 2026

Claire Williams

Bib: 24286 F GB

0:00
0:00
/ mi
Masters
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Overall
#0 / 59786
Gender (Female)
#0 / 26115
Masters (Masters Women)
#0 / 11371
Division (F50-54)
#0 / 2342
Top 49%
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
10:37/mi
32:59
↑ 49↓ 125
10K· 6.21 mi
10:21/mi
1:05:07
↑ 50↓ 81
15K· 9.32 mi
10:42/mi
1:38:21
↑ 44↓ 51
20K· 12.43 mi
10:36/mi
2:11:15
↑ 67↓ 40
Half· 13.10 mi
10:53/mi
2:18:33
↓ 27
25K· 15.53 mi
10:44/mi
2:44:41
↑ 50↓ 63
30K· 18.64 mi
10:58/mi
3:18:44
↑ 69↓ 46
35K· 21.75 mi
13:05/mi
3:59:21
↑ 87↓ 88
40K· 24.85 mi
12:30/mi
4:38:10
↑ 58↓ 75
Finish· 26.22 mi
12:30/mi
4:55:12
↑ 14↓ 18
Course Elevation
503ft
Total climb
613ft
Total descent
166ft
Range
6 to 172 ft
≈
×14story building

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The Course

Half Splits

1st Half· via Half
2:18:3310:35 /mi⚡ faster
2nd Half
2:36:3911:57 /mi+13.1%
Positive split — 13.1% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
32:5910:373.11 mi32:59
10:37
-
10K
1:05:0710:293.10 mi32:08
10:21
-0:16
15K
1:38:2110:343.11 mi33:14
10:42
+0:21
20K
2:11:1510:343.11 mi32:54
10:36
-0:06
Half(13.10 mi)
2:18:3310:350.67 mi7:18
10:53
+0:17
25K
2:44:4110:372.43 mi26:08
10:44
-0:09
30K
3:18:4410:403.11 mi34:03
10:58
+0:14
35K
3:59:2111:013.11 mi40:37
13:05
+2:07
40K
4:38:1011:123.10 mi38:49
12:30
-0:35
Finish(26.22 mi)
4:55:1211:171.37 mi17:02
12:30
0:00
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

10:21 /mi

Average Pace

11:16 /mi

Slowest Pace

13:05 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

32:08

11% of race

Time at Steady Pace

2:46:36

56% of race

Time at Slower Pace

1:36:28

33% of race

Average Pace: 11:16 /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. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi449111617716177391421307213072
10K3.10 mi42180+273114600+157714600+1577397931334713347
15K3.11 mi40993+118713980+62013980+620391421307213072
20K3.11 mi40193+80013636+34413636+344386101309813098
Half(13.10 mi)0.67 mi40000+19313571+6513571+65381261305613056
25K2.43 mi38942+105813127+44413127+444350821177311773
30K3.11 mi37524+141812625+50212625+502324351093910939
35K3.11 mi38248-72413205-58013205-580412331598215982
40K3.10 mi38335-8713447-24213447-242389831525615256
Finish(26.22 mi)1.37 mi38618-28313678-23113678-231432951724217242

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×10story building
+49ft-125ft

Overall

39142

Females

13072

F50-54

13072

5K→10K

3.1 - 6.2 mi

Top 67%
×4story building
+50ft-81ft

Overall

39793

Females

13347

F50-54

13347

10K→15K

6.2 - 9.3 mi

Top 65%
×1story
+44ft-51ft

Overall

39142

Females

13072

F50-54

13072

15K→20K

9.3 - 12.4 mi

Top 65%
×3story building
+67ft-40ft

Overall

38610

Females

13098

F50-54

13098

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+8ft-27ft

Overall

38126

Females

13056

F50-54

13056

Half→25K

13.1 - 15.5 mi

Top 59%
×2story building
+50ft-63ft

Overall

35082

Females

11773

F50-54

11773

25K→30K

15.5 - 18.6 mi

Top 54%
×2story building
+69ft-46ft

Overall

32435

Females

10939

F50-54

10939

30K→35K

18.6 - 21.8 mi

Top 69%
×2story building
+87ft-88ft

Overall

41233

Females

15982

F50-54

15982

35K→40K

21.8 - 24.9 mi

Top 65%
×3story building
+58ft-75ft

Overall

38983

Females

15256

F50-54

15256

40K→Finish

24.9 - 26.2 mi

Top 72%
×1story
+14ft-18ft

Overall

43295

Females

17242

F50-54

17242

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 5K-#44911
5K → 10K
512782*+2731
#44911 → #42180
10K → 15K
1101297*+1187
#42180 → #40993
15K → 20K
161961*+800
#40993 → #40193
20K → Half
48241*+193
#40193 → #40000
Half → 25K
601118*+1058
#40000 → #38942
25K → 30K
651483+1418
#38942 → #37524
30K → 35K
200200-724
#37524 → #38248
35K → 40K
200200-87
#38248 → #38335
40K → Finish
200114-283
#38335 → #38618
TOTALS
10958396*+6293
#44911 → #38618

* Includes athletes who did not complete a segment (DNF/DNQ).

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