Jennifer Birch

Bib: 70966 F GB

0:00

0:00

/ mi

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Overall

#0 / 59786

Gender (Female)

#0 / 26115

Top 48%

Division (F18-39)

#0 / 14744

Top 49%

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

10:20/mi

32:05

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

10:46/mi

1:05:29

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

11:14/mi

1:40:21

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

11:03/mi

2:14:38

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

10:59/mi

2:22:00

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

11:20/mi

2:49:34

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

11:29/mi

3:25:13

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

11:34/mi

4:01:09

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

10:40/mi

4:34:16

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

9:30/mi

4:47:13

↑ 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

2:22:0010:51 /mi⚡ faster

2nd Half

2:25:1311:05 /mi+2.3%

Positive split — 2.3% slower in the second half

AI Race Performance Report

Jennifer'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	32:05	10:20	3.11 mi	32:05	10:20	-
10K	1:05:29	10:33	3.10 mi	33:24	10:46	+0:26
15K	1:40:21	10:46	3.11 mi	34:52	11:14	+0:28
20K	2:14:38	10:51	3.11 mi	34:17	11:03	-0:11
Half(13.10 mi)	2:22:00	10:51	0.67 mi	7:22	10:59	-0:04
25K	2:49:34	10:55	2.43 mi	27:34	11:20	+0:21
30K	3:25:13	11:01	3.11 mi	35:39	11:29	+0:09
35K	4:01:09	11:06	3.11 mi	35:56	11:34	+0:05
40K	4:34:16	11:03	3.10 mi	33:07	10:40	-0:54
Finish(26.22 mi)	4:47:13	10:58	1.37 mi	12:57	9:30	-1:10

Trend:

Faster pace

Steady pace

Slower pace

More below

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Checkpoints & Pacing

Pace Line

Fastest Pace

9:30 /mi

Average Pace

10:58 /mi

Slowest Pace

11:34 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:18:09

27% of race

Time at Steady Pace

2:17:29

48% of race

Time at Slower Pace

1:11:35

25% of race

Average Pace: 10:57 /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	42158	14576	14576	43393	15396	15396
10K	3.10 mi	42730-572	14893-317	14893-317	43526	15392	15392
15K	3.11 mi	42888-158	15033-140	15033-140	43393	15396	15396
20K	3.11 mi	42518+370	14905+128	14905+128	42017	14917	14917
Half(13.10 mi)	0.67 mi	42254+264	14787+118	14787+118	38925	13473	13473
25K	2.43 mi	41492+762	14488+299	14488+299	39085	13769	13769
30K	3.11 mi	40223+1269	14019+469	14019+469	35812	12597	12597
35K	3.11 mi	38852+1371	13514+505	13514+505	32041	11475	11475
40K	3.10 mi	37078+1774	12828+686	12828+686	25473	8933	8933
Finish(26.22 mi)	1.37 mi	36083+995	12414+414	12414+414	18997	6197	6197

6197

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