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LONDON MARATHON MASS 2026

Gem Selby

Bib: 72245 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
9:54/mi
30:44
↑ 49↓ 125
10K· 6.21 mi
10:25/mi
1:03:05
↑ 50↓ 81
15K· 9.32 mi
10:45/mi
1:36:28
↑ 44↓ 51
20K· 12.43 mi
10:32/mi
2:09:09
↑ 67↓ 40
Half· 13.10 mi
10:55/mi
2:16:28
↓ 27
25K· 15.53 mi
11:26/mi
2:44:17
↑ 50↓ 63
30K· 18.64 mi
12:02/mi
3:21:40
↑ 69↓ 46
35K· 21.75 mi
12:33/mi
4:00:37
↑ 87↓ 88
40K· 24.85 mi
12:25/mi
4:39:10
↑ 58↓ 75
Finish· 26.22 mi
12:39/mi
4:56:25
↑ 14↓ 18
Course Elevation
6–172 ft
≈
×14story building
•▲ 503 ft climb · ▼ 613 ft descent

The Course

Half Splits

1st Half· via Half
2:16:2810:26 /mi⚡ faster
2nd Half
2:39:5712:12 /mi+17.2%
Positive split — 17.2% 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
30:449:543.11 mi30:44
9:54
-
10K
1:03:0510:103.10 mi32:21
10:25
+0:31
15K
1:36:2810:213.11 mi33:23
10:45
+0:20
20K
2:09:0910:243.11 mi32:41
10:32
-0:13
Half(13.10 mi)
2:16:2810:260.67 mi7:19
10:55
+0:23
25K
2:44:1710:352.43 mi27:49
11:26
+0:31
30K
3:21:4010:503.11 mi37:23
12:02
+0:36
35K
4:00:3711:043.11 mi38:57
12:33
+0:31
40K
4:39:1011:143.10 mi38:33
12:25
-0:08
Finish(26.22 mi)
4:56:2511:191.37 mi17:15
12:39
+0:14
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:54 /mi

Average Pace

11:19 /mi

Slowest Pace

12:39 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:16:28

46% of race

Time at Steady Pace

27:49

9% of race

Time at Slower Pace

2:12:08

45% of race

Average Pace: 11:18 /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 mi375791218212182395731330213302
10K3.10 mi38930-135112858-67612858-676404981372913729
15K3.11 mi39085-15512980-12212980-122395731330213302
20K3.11 mi38692+39312843+13712843+137380341280912809
Half(13.10 mi)0.67 mi38592+10012833+1012833+10383421317913179
25K2.43 mi38739-14713032-19913032-199397671413314133
30K3.11 mi38772-3313255-22313255-223392481435714357
35K3.11 mi38668+10413424-16913424-169381591443314433
40K3.10 mi38678-1013632-20813632-208383511497314973
Finish(26.22 mi)1.37 mi39000-32213870-23813870-238443551778817788

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×10story building
+49ft-125ft

Overall

39573

Females

13302

F18-39

13302

5K→10K

3.1 - 6.2 mi

Top 68%
×4story building
+50ft-81ft

Overall

40498

Females

13729

F18-39

13729

10K→15K

6.2 - 9.3 mi

Top 66%
×1story
+44ft-51ft

Overall

39573

Females

13302

F18-39

13302

15K→20K

9.3 - 12.4 mi

Top 64%
×3story building
+67ft-40ft

Overall

38034

Females

12809

F18-39

12809

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+8ft-27ft

Overall

38342

Females

13179

F18-39

13179

Half→25K

13.1 - 15.5 mi

Top 67%
×2story building
+50ft-63ft

Overall

39767

Females

14133

F18-39

14133

25K→30K

15.5 - 18.6 mi

Top 66%
×2story building
+69ft-46ft

Overall

39248

Females

14357

F18-39

14357

30K→35K

18.6 - 21.8 mi

Top 64%
×2story building
+87ft-88ft

Overall

38159

Females

14433

F18-39

14433

35K→40K

21.8 - 24.9 mi

Top 64%
×3story building
+58ft-75ft

Overall

38351

Females

14973

F18-39

14973

40K→Finish

24.9 - 26.2 mi

Top 74%
×1story
+14ft-18ft

Overall

44355

Females

17788

F18-39

17788

Passing Analysis

Category:
▼Net Change
0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#37579
5K → 10K
1695344-1351
#37579 → #38930
10K → 15K
669514-155
#38930 → #39085
15K → 20K
291684+393
#39085 → #38692
20K → Half
67167+100
#38692 → #38592
Half → 25K
587440-147
#38592 → #38739
25K → 30K
641608-33
#38739 → #38772
30K → 35K
483587+104
#38772 → #38668
35K → 40K
458448-10
#38668 → #38678
40K → Finish
40381-322
#38678 → #39000
TOTALS
52943873-1421
#37579 → #39000

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