TCS London Marathon 2026 logo
LONDON MARATHON MASS 2026

Sian Lancaster

Bib: 21283 F GB

0:00
0:00
/ mi
Masters
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Overall
#0 / 59786
Gender (Female)
#0 / 26115
Top 39%
Masters (Masters Women)
#0 / 11371
Top 37%
Division (F55-59)
#0 / 1484
Top 30%
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
10:13/mi
31:43
↑ 49↓ 125
10K· 6.21 mi
9:58/mi
1:02:39
↑ 50↓ 81
15K· 9.32 mi
10:42/mi
1:35:51
↑ 44↓ 51
20K· 12.43 mi
9:53/mi
2:06:33
↑ 67↓ 40
Half· 13.10 mi
10:28/mi
2:13:34
↓ 27
25K· 15.53 mi
10:17/mi
2:38:36
↑ 50↓ 63
30K· 18.64 mi
10:20/mi
3:10:42
↑ 69↓ 46
35K· 21.75 mi
10:46/mi
3:44:07
↑ 87↓ 88
40K· 24.85 mi
10:38/mi
4:17:07
↑ 58↓ 75
Finish· 26.22 mi
10:33/mi
4:31:30
↑ 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
2:13:3410:12 /mi⚡ faster
2nd Half
2:17:5610:31 /mi+3.3%
Positive split — 3.3% 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
31:4310:133.11 mi31:43
10:13
-
10K
1:02:3910:053.10 mi30:56
9:58
-0:15
15K
1:35:5110:183.11 mi33:12
10:42
+0:44
20K
2:06:3310:113.11 mi30:42
9:53
-0:49
Half(13.10 mi)
2:13:3410:120.67 mi7:01
10:28
+0:35
25K
2:38:3610:132.43 mi25:02
10:17
-0:11
30K
3:10:4210:143.11 mi32:06
10:20
+0:03
35K
3:44:0710:193.11 mi33:25
10:46
+0:26
40K
4:17:0710:213.10 mi33:00
10:38
-0:08
Finish(26.22 mi)
4:31:3010:221.37 mi14:23
10:33
-0:05
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:53 /mi

Average Pace

10:22 /mi

Slowest Pace

10:46 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:30:29

55% of race

Time at Steady Pace

2:01:01

45% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:21 /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. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi409601391913919390301300613006
10K3.10 mi38244+271612510+140912510+1409360381145911459
15K3.11 mi38449-20512649-13912649-139390301300613006
20K3.11 mi36682+176711866+78311866+783324591005110051
Half(13.10 mi)0.67 mi36523+15911821+4511821+45345571122911229
25K2.43 mi35475+104811416+40511416+405315541002710027
30K3.11 mi33731+174410782+63410782+6342792288048804
35K3.11 mi32251+148010381+40110381+4012669789498949
40K3.10 mi31097+115410085+29610085+2962518988078807
Finish(26.22 mi)1.37 mi30851+24610060+2510060+252764598939893

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×10story building
+49ft-125ft

Overall

39030

Females

13006

F55-59

13006

5K→10K

3.1 - 6.2 mi

Top 60%
×4story building
+50ft-81ft

Overall

36038

Females

11459

F55-59

11459

10K→15K

6.2 - 9.3 mi

Top 65%
×1story
+44ft-51ft

Overall

39030

Females

13006

F55-59

13006

15K→20K

9.3 - 12.4 mi

Top 54%
×3story building
+67ft-40ft

Overall

32459

Females

10051

F55-59

10051

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+8ft-27ft

Overall

34557

Females

11229

F55-59

11229

Half→25K

13.1 - 15.5 mi

Top 53%
×2story building
+50ft-63ft

Overall

31554

Females

10027

F55-59

10027

25K→30K

15.5 - 18.6 mi

Top 47%
×2story building
+69ft-46ft

Overall

27922

Females

8804

F55-59

8804

30K→35K

18.6 - 21.8 mi

Top 45%
×2story building
+87ft-88ft

Overall

26697

Females

8949

F55-59

8949

35K→40K

21.8 - 24.9 mi

Top 42%
×3story building
+58ft-75ft

Overall

25189

Females

8807

F55-59

8807

40K→Finish

24.9 - 26.2 mi

Top 46%
×1story
+14ft-18ft

Overall

27645

Females

9893

F55-59

9893

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 5K-#40960
5K → 10K
652781*+2716
#40960 → #38244
10K → 15K
200200-205
#38244 → #38449
15K → 20K
111778*+1767
#38449 → #36682
20K → Half
38197+159
#36682 → #36523
Half → 25K
451093*+1048
#36523 → #35475
25K → 30K
261770+1744
#35475 → #33731
30K → 35K
811561*+1480
#33731 → #32251
35K → 40K
851239*+1154
#32251 → #31097
40K → Finish
86332*+246
#31097 → #30851
TOTALS
63710951*+10109
#40960 → #30851

* 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