TCS London Marathon 2026 logo
LONDON MARATHON MASS 2026

Stephanie Potter

Bib: 42279 F GB

0:00
0:00
/ mi
Masters
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Overall
#0 / 59786
Top 33%
Gender (Female)
#0 / 26115
Top 22%
Masters (Masters Women)
#0 / 11371
Top 20%
Division (F40-44)
#0 / 3355
Top 25%
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
8:25/mi
26:07
↑ 49↓ 125
10K· 6.21 mi
8:36/mi
52:50
↑ 50↓ 81
15K· 9.32 mi
8:39/mi
1:19:41
↑ 44↓ 51
20K· 12.43 mi
8:27/mi
1:45:56
↑ 67↓ 40
Half· 13.10 mi
8:42/mi
1:51:46
↓ 27
25K· 15.53 mi
8:38/mi
2:12:47
↑ 50↓ 63
30K· 18.64 mi
9:33/mi
2:42:25
↑ 69↓ 46
35K· 21.75 mi
10:23/mi
3:14:38
↑ 87↓ 88
40K· 24.85 mi
9:58/mi
3:45:34
↑ 58↓ 75
Finish· 26.22 mi
10:01/mi
3:59:13
↑ 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
1:51:468:32 /mi⚡ faster
2nd Half
2:07:279:43 /mi+14.0%
Positive split — 14.0% 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
26:078:253.11 mi26:07
8:25
-
10K
52:508:313.10 mi26:43
8:36
+0:11
15K
1:19:418:333.11 mi26:51
8:39
+0:03
20K
1:45:568:323.11 mi26:15
8:27
-0:12
Half(13.10 mi)
1:51:468:320.67 mi5:50
8:42
+0:15
25K
2:12:478:332.43 mi21:01
8:38
-0:04
30K
2:42:258:433.11 mi29:38
9:33
+0:55
35K
3:14:388:573.11 mi32:13
10:23
+0:50
40K
3:45:349:053.10 mi30:56
9:58
-0:25
Finish(26.22 mi)
3:59:139:081.37 mi13:39
10:01
+0:03
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:25 /mi

Average Pace

9:08 /mi

Slowest Pace

10:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:12:47

56% of race

Time at Slower Pace

1:46:26

44% of race

Average Pace: 9:07 /mi

Loading chart...
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. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi18746475847581759543884388
10K3.10 mi19020-2744874-1164874-1161946250315031
15K3.11 mi18455+5654699+1754699+1751759543884388
20K3.11 mi18098+3574579+1204579+1201751543994399
Half(13.10 mi)0.67 mi18036+624561+184561+181761044704470
25K2.43 mi17817+2194525+364525+361694543064306
30K3.11 mi18433-6164796-2714796-2712222864586458
35K3.11 mi19429-9965286-4905286-4902426378287828
40K3.10 mi19630-2015528-2425528-2422058467766776
Finish(26.22 mi)1.37 mi19961-3315699-1715699-1712312878917891

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×10story building
+49ft-125ft

Overall

17595

Females

4388

F40-44

4388

5K→10K

3.1 - 6.2 mi

Top 33%
×4story building
+50ft-81ft

Overall

19462

Females

5031

F40-44

5031

10K→15K

6.2 - 9.3 mi

Top 29%
×1story
+44ft-51ft

Overall

17595

Females

4388

F40-44

4388

15K→20K

9.3 - 12.4 mi

Top 29%
×3story building
+67ft-40ft

Overall

17515

Females

4399

F40-44

4399

20K→Half

12.4 - 13.1 mi

Top 29%
×2story building
+8ft-27ft

Overall

17610

Females

4470

F40-44

4470

Half→25K

13.1 - 15.5 mi

Top 28%
×2story building
+50ft-63ft

Overall

16945

Females

4306

F40-44

4306

25K→30K

15.5 - 18.6 mi

Top 37%
×2story building
+69ft-46ft

Overall

22228

Females

6458

F40-44

6458

30K→35K

18.6 - 21.8 mi

Top 41%
×2story building
+87ft-88ft

Overall

24263

Females

7828

F40-44

7828

35K→40K

21.8 - 24.9 mi

Top 34%
×3story building
+58ft-75ft

Overall

20584

Females

6776

F40-44

6776

40K→Finish

24.9 - 26.2 mi

Top 39%
×1story
+14ft-18ft

Overall

23128

Females

7891

F40-44

7891

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 5K-#18746
5K → 10K
200200-274
#18746 → #19020
10K → 15K
102667*+565
#19020 → #18455
15K → 20K
117474*+357
#18455 → #18098
20K → Half
3092+62
#18098 → #18036
Half → 25K
128347*+219
#18036 → #17817
25K → 30K
868252-616
#17817 → #18433
30K → 35K
200200-996
#18433 → #19429
35K → 40K
200200-201
#19429 → #19630
40K → Finish
20096-331
#19630 → #19961
TOTALS
20452528*-1215
#18746 → #19961

* 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

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Mika Timing

Mika Timing