TCS London Marathon 2026 logo
LONDON MARATHON MASS 2026

Isabella Gasparotto-Dewilde

Bib: 35747 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
11:44/mi
36:25
↑ 49↓ 125
10K· 6.21 mi
12:09/mi
1:14:08
↑ 50↓ 81
15K· 9.32 mi
14:46/mi
1:59:58
↑ 44↓ 51
20K· 12.43 mi
14:19/mi
2:44:25
↑ 67↓ 40
Half· 13.10 mi
13:27/mi
2:53:26
↓ 27
25K· 15.53 mi
20:14/mi
3:42:43
↑ 50↓ 63
30K· 18.64 mi
17:27/mi
4:36:55
↑ 69↓ 46
35K· 21.75 mi
15:00/mi
5:23:29
↑ 87↓ 88
40K· 24.85 mi
15:22/mi
6:11:13
↑ 58↓ 75
Finish· 26.22 mi
15:05/mi
6:31:46
↑ 14↓ 18
Course Elevation
503ft
Total climb
166ft
Range
6 to 172 ft
×14
613ft
Total descent

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The Course

Half Splits

1st Half· via Half
2:53:2613:15 /mi⚡ faster
2nd Half
3:38:2016:39 /mi+25.9%
Positive split — 25.9% 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
36:2511:443.11 mi36:25
11:44
-
10K
1:14:0811:563.10 mi37:43
12:09
+0:25
15K
1:59:5812:533.11 mi45:50
14:46
+2:37
20K
2:44:2513:143.11 mi44:27
14:19
-0:27
Half(13.10 mi)
2:53:2613:150.67 mi9:01
13:27
-0:52
25K
3:42:4314:212.43 mi49:17
20:14
+6:47
30K
4:36:5514:523.11 mi54:12
17:27
-2:47
35K
5:23:2914:533.11 mi46:34
15:00
-2:27
40K
6:11:1314:573.10 mi47:44
15:22
+0:22
Finish(26.22 mi)
6:31:4614:581.37 mi20:33
15:05
-0:17
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

11:44 /mi

Average Pace

14:57 /mi

Slowest Pace

20:14 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:23:09

21% of race

Time at Steady Pace

3:25:08

52% of race

Time at Slower Pace

1:43:29

26% of race

Average Pace: 14:56 /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 mi528332109721097571182417224172
10K3.10 mi52593+24020983+11420983+114523982091720917
15K3.11 mi54872-227922566-158322566-1583571182417224172
20K3.11 mi55076-20422732-16622732-166555012316323163
Half(13.10 mi)0.67 mi54942+13422649+8322649+83518052099420994
25K2.43 mi56745-180323930-128123930-1281592292572725727
30K3.11 mi57011-26624146-21624146-216575352465324653
35K3.11 mi56493+51823836+31023836+310505392089520895
40K3.10 mi56308+18523742+9423742+94536802268122681
Finish(26.22 mi)1.37 mi56263+4523724+1823724+18545252315923159

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×10
+49ft-125ft

Overall

57118

Females

24172

F18-39

24172

5K→10K

3.1 - 6.2 mi

Top 88%
×4
+50ft-81ft

Overall

52398

Females

20917

F18-39

20917

10K→15K

6.2 - 9.3 mi

Top 96%
+44ft-51ft

Overall

57118

Females

24172

F18-39

24172

15K→20K

9.3 - 12.4 mi

Top 93%
×3
+67ft-40ft

Overall

55501

Females

23163

F18-39

23163

20K→Half

12.4 - 13.1 mi

Top 87%
×2
+8ft-27ft

Overall

51805

Females

20994

F18-39

20994

Half→25K

13.1 - 15.5 mi

Top 99%
×2
+50ft-63ft

Overall

59229

Females

25727

F18-39

25727

25K→30K

15.5 - 18.6 mi

Top 96%
×2
+69ft-46ft

Overall

57535

Females

24653

F18-39

24653

30K→35K

18.6 - 21.8 mi

Top 85%
×2
+87ft-88ft

Overall

50539

Females

20895

F18-39

20895

35K→40K

21.8 - 24.9 mi

Top 90%
×3
+58ft-75ft

Overall

53680

Females

22681

F18-39

22681

40K→Finish

24.9 - 26.2 mi

Top 91%
+14ft-18ft

Overall

54525

Females

23159

F18-39

23159

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 5K-#52833
5K → 10K
200440*+240
#52833 → #52593
10K → 15K
20036-2279
#52593 → #54872
15K → 20K
200200-204
#54872 → #55076
20K → Half
22156+134
#55076 → #54942
Half → 25K
20027-1803
#54942 → #56745
25K → 30K
392126-266
#56745 → #57011
30K → 35K
15533*+518
#57011 → #56493
35K → 40K
71256*+185
#56493 → #56308
40K → Finish
4186+45
#56308 → #56263
TOTALS
13411860*-3430
#52833 → #56263

* 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

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London Marathon Events

Mika Timing

Mika Timing