Clair Isaac

Bib: 21856 F GB

0:00

0:00

/ mi

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Overall

#0 / 59786

Gender (Female)

#0 / 26115

Top 49%

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

131 ft elev

5K· 3.11 mi

9:46/mi

30:19

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

9:44/mi

1:00:31

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

10:26/mi

1:32:54

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

10:52/mi

2:06:37

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

10:32/mi

2:13:41

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

12:01/mi

2:42:57

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

11:26/mi

3:18:27

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

12:38/mi

3:57:39

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

11:51/mi

4:34:25

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

10:38/mi

4:48:54

↑ 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

2:13:4110:13 /mi⚡ faster

2nd Half

2:35:1311:50 /mi+16.1%

Positive split — 16.1% slower in the second half

AI Race Performance Report

Clair'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	30:19	9:46	3.11 mi	30:19	9:46	-
10K	1:00:31	9:45	3.10 mi	30:12	9:44	-0:02
15K	1:32:54	9:59	3.11 mi	32:23	10:26	+0:42
20K	2:06:37	10:12	3.11 mi	33:43	10:52	+0:26
Half(13.10 mi)	2:13:41	10:13	0.67 mi	7:04	10:32	-0:20
25K	2:42:57	10:30	2.43 mi	29:16	12:01	+1:29
30K	3:18:27	10:39	3.11 mi	35:30	11:26	-0:35
35K	3:57:39	10:56	3.11 mi	39:12	12:38	+1:12
40K	4:34:25	11:03	3.10 mi	36:46	11:51	-0:47
Finish(26.22 mi)	4:48:54	11:02	1.37 mi	14:29	10:38	-1:13

Trend:

Faster pace

Steady pace

Slower pace

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Checkpoints & Pacing

Pace Line

Fastest Pace

9:44 /mi

Average Pace

11:02 /mi

Slowest Pace

12:38 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:00:31

21% of race

Time at Steady Pace

1:27:39

30% of race

Time at Slower Pace

2:20:44

49% of race

Average Pace: 11:01 /mi

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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	36150	11479	11479	36684	11858	11858
10K	3.10 mi	34803+1347	10850+629	10850+629	33760	10431	10431
15K	3.11 mi	35395-592	11139-289	11139-289	36684	11858	11858
20K	3.11 mi	36738-1343	11895-756	11895-756	40635	14152	14152
Half(13.10 mi)	0.67 mi	36610+128	11870+25	11870+25	35259	11602	11602
25K	2.43 mi	37980-1370	12658-788	12658-788	43092	15946	15946
30K	3.11 mi	37413+567	12573+85	12573+85	35497	12443	12443
35K	3.11 mi	37618-205	12897-324	12897-324	38629	14669	14669
40K	3.10 mi	37131+487	12856+41	12856+41	34295	13026	13026
Finish(26.22 mi)	1.37 mi	36616+515	12678+178	12678+178	28291	10199	10199

10199

Passing Analysis

No position changes recorded for this athlete.

All Results

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Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

London Marathon Events

Race timed by

Mika Timing