Gemma Birchley

Bib: 34794 F GB

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 59786

Gender (Female)

#0 / 26115

Masters (Masters Women)

#0 / 11371

Division (F40-44)

#0 / 3355

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

11:46/mi

36:31

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

11:36/mi

1:12:31

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

11:55/mi

1:49:30

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

11:59/mi

2:26:42

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

12:48/mi

2:35:17

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

15:07/mi

3:12:06

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

14:09/mi

3:56:01

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

15:26/mi

4:43:55

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

14:03/mi

5:27:32

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

12:44/mi

5:44:53

↑ 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

2:35:1711:52 /mi⚡ faster

2nd Half

3:09:3614:28 /mi+22.1%

Positive split — 22.1% slower in the second half

AI Race Performance Report

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	36:31	11:46	3.11 mi	36:31	11:46	-
10K	1:12:31	11:41	3.10 mi	36:00	11:36	-0:10
15K	1:49:30	11:45	3.11 mi	36:59	11:55	+0:19
20K	2:26:42	11:49	3.11 mi	37:12	11:59	+0:04
Half(13.10 mi)	2:35:17	11:52	0.67 mi	8:35	12:48	+0:49
25K	3:12:06	12:22	2.43 mi	36:49	15:07	+2:19
30K	3:56:01	12:40	3.11 mi	43:55	14:09	-0:58
35K	4:43:55	13:04	3.11 mi	47:54	15:26	+1:17
40K	5:27:32	13:11	3.10 mi	43:37	14:03	-1:23
Finish(26.22 mi)	5:44:53	13:10	1.37 mi	17:21	12:44	-1:19

Trend:

Faster pace

Steady pace

Slower pace

More below

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Checkpoints & Pacing

Pace Line

Fastest Pace

11:36 /mi

Average Pace

13:10 /mi

Slowest Pace

15:26 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:26:42

43% of race

Time at Steady Pace

25:56

8% of race

Time at Slower Pace

2:52:15

50% of race

Average Pace: 13:09 /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	F40-44	Seg. Overall	Seg. Females	Seg. F40-44
5K	3.11 mi	53013	21203	21203	47983	18129	18129
10K	3.10 mi	51371+1642	20143+1060	20143+1060	49747	19159	19159
15K	3.11 mi	50096+1275	19368+775	19368+775	47983	18129	18129
20K	3.11 mi	49320+776	18957+411	18957+411	47646	18159	18159
Half(13.10 mi)	0.67 mi	49307+13	18969-12	18969-12	49525	19583	19583
25K	2.43 mi	50519-1212	19804-835	19804-835	54293	22541	22541
30K	3.11 mi	50355+164	19795+9	19795+9	49597	19955	19955
35K	3.11 mi	50723-368	20167-372	20167-372	52059	21747	21747
40K	3.10 mi	50539+184	20170-3	20170-3	48398	19929	19929
Finish(26.22 mi)	1.37 mi	50332+207	20079+91	20079+91	44845	18045	18045

18045

Passing Analysis

Category:

▲Net Change

0 passed by0 passed

Segment	Movement	Rank
Start → 5K	-	#53013
5K → 10K	871729+1642	#53013 → #51371
10K → 15K	981373+1275	#51371 → #50096
15K → 20K	163939+776	#50096 → #49320
20K → Half	103116+13	#49320 → #49307
Half → 25K	1350138-1212	#49307 → #50519
25K → 30K	354518+164	#50519 → #50355
30K → 35K	610242-368	#50355 → #50723
35K → 40K	174358+184	#50723 → #50539
40K → Finish	39246+207	#50539 → #50332
TOTALS	29785659+2681	#53013 → #50332

Passing Visualized

Category:

Passing Circle

Position Flow

Race Lanes

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