Isabelle Tombs

Bib: 65223 F GB

0:00

0:00

/ mi

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Overall

#0 / 59786

Top 49%

Gender (Female)

#0 / 26115

Top 36%

Division (F18-39)

#0 / 14744

Top 38%

Race Day Weather

56°/46°F

overcast clouds

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

131 ft elev

5K· 3.11 mi

9:15/mi

28:43

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

9:39/mi

58:40

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

10:11/mi

1:30:16

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

9:45/mi

2:00:33

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

9:58/mi

2:07:14

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

9:59/mi

2:31:31

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

10:24/mi

3:03:48

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

10:48/mi

3:37:19

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

11:21/mi

4:12:32

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

10:55/mi

4:27:24

↑ 14 ft↓ 18 ft

19 ft elev

Course Elevation

503ft

Total climb

166ft

Range

6 to 172 ft

613ft

Total descent

About the height of the Statue of Liberty

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The Course

Half Splits

1st Half· via Half

2:07:149:43 /mi⚡ faster

2nd Half

2:20:1010:41 /mi+10.2%

Positive split — 10.2% slower in the second half

AI Race Performance Report

Isabelle's race, broken down like a coach

The full Race Story, performance analysis, segment & passing breakdowns, and where the race turned. Free to unlock — for anyone.

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	28:43	9:15	3.11 mi	28:43	9:15	-
10K	58:40	9:27	3.10 mi	29:57	9:39	+0:24
15K	1:30:16	9:42	3.11 mi	31:36	10:11	+0:32
20K	2:00:33	9:43	3.11 mi	30:17	9:45	-0:26
Half(13.10 mi)	2:07:14	9:43	0.67 mi	6:41	9:58	+0:13
25K	2:31:31	9:46	2.43 mi	24:17	9:59	+0:01
30K	3:03:48	9:52	3.11 mi	32:17	10:24	+0:25
35K	3:37:19	10:00	3.11 mi	33:31	10:48	+0:24
40K	4:12:32	10:10	3.10 mi	35:13	11:21	+0:33
Finish(26.22 mi)	4:27:24	10:13	1.37 mi	14:52	10:55	-0:26

Trend:

Faster pace

Steady pace

Slower pace

More below

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Checkpoints & Pacing

Pace Line

Fastest Pace

9:15 /mi

Average Pace

10:12 /mi

Slowest Pace

11:21 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:28:57

33% of race

Time at Steady Pace

1:34:51

35% of race

Time at Slower Pace

1:23:36

31% of race

Average Pace: 10:12 /mi

Loading chart...

Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

Heatmap

0mi6.6mi13.1mi19.7mi26.2mi

Pace:

Faster

Steady

Slower

Checkpoint and Segment Rankings

Checkpoint	Seg. Dist	Overall	Females	F18-39	Seg. Overall	Seg. Females	Seg. F18-39
5K	3.11 mi	30307	8946	8946	34400	10736	10736
10K	3.10 mi	31674-1367	9494-548	9494-548	32990	10059	10059
15K	3.11 mi	32629-955	9887-393	9887-393	34400	10736	10736
20K	3.11 mi	32118+511	9749+138	9749+138	31272	9517	9517
Half(13.10 mi)	0.67 mi	31959+159	9702+47	9702+47	30200	9171	9171
25K	2.43 mi	31252+707	9504+198	9504+198	29156	8946	8946
30K	3.11 mi	30348+904	9288+216	9288+216	28352	9001	9001
35K	3.11 mi	29460+888	9135+153	9135+153	26916	9046	9046
40K	3.10 mi	29421+39	9357-222	9357-222	30437	11186	11186
Finish(26.22 mi)	1.37 mi	29409+12	9436-79	9436-79	30738	11337	11337

11337

Passing Analysis

No position changes recorded for this athlete.

All Results

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Public Race Data

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Race managed by

London Marathon Events

Race timed by

Mika Timing