Chloe Birchley

Bib: 30070 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

131 ft elev

5K· 3.11 mi

11:24/mi

35:24

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

11:28/mi

1:11:00

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

12:50/mi

1:50:50

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

12:58/mi

2:31:05

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

14:29/mi

2:40:48

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

15:49/mi

3:19:18

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

17:51/mi

4:14:43

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

16:39/mi

5:06:25

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

16:59/mi

5:59:08

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

15:32/mi

6:20:19

↑ 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

2:40:4812:17 /mi⚡ faster

2nd Half

3:39:3116:44 /mi+36.5%

Positive split — 36.5% slower in the second half

AI Race Performance Report

Chloe's race, broken down like a coach

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	35:24	11:24	3.11 mi	35:24	11:24	-
10K	1:11:00	11:26	3.10 mi	35:36	11:28	+0:04
15K	1:50:50	11:54	3.11 mi	39:50	12:50	+1:22
20K	2:31:05	12:10	3.11 mi	40:15	12:58	+0:08
Half(13.10 mi)	2:40:48	12:17	0.67 mi	9:43	14:29	+1:31
25K	3:19:18	12:50	2.43 mi	38:30	15:49	+1:20
30K	4:14:43	13:40	3.11 mi	55:25	17:51	+2:02
35K	5:06:25	14:06	3.11 mi	51:42	16:39	-1:12
40K	5:59:08	14:27	3.10 mi	52:43	16:59	+0:20
Finish(26.22 mi)	6:20:19	14:31	1.37 mi	21:11	15:32	-1:27

Trend:

Faster pace

Steady pace

Slower pace

More below

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Checkpoints & Pacing

Pace Line

Fastest Pace

11:24 /mi

Average Pace

14:31 /mi

Slowest Pace

17:51 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:31:05

40% of race

Time at Steady Pace

1:09:24

18% of race

Time at Slower Pace

2:39:50

42% of race

Average Pace: 14:30 /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	51133	19980	19980	52113	20782	20782
10K	3.10 mi	49950+1183	19243+737	19243+737	48906	18607	18607
15K	3.11 mi	50870-920	19869-626	19869-626	52113	20782	20782
20K	3.11 mi	51156-286	20137-268	20137-268	51739	20746	20746
Half(13.10 mi)	0.67 mi	51434-278	20330-193	20330-193	54878	22952	22952
25K	2.43 mi	52537-1103	21140-810	21140-810	55626	23352	23352
30K	3.11 mi	54165-1628	22237-1097	22237-1097	57970	24934	24934
35K	3.11 mi	54519-354	22540-303	22540-303	55476	23629	23629
40K	3.10 mi	55103-584	22945-405	22945-405	57080	24548	24548
Finish(26.22 mi)	1.37 mi	55179-76	23017-72	23017-72	55591	23753	23753

23753

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