Deena Birkby

Bib: 36763 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

12:24/mi

38:29

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

12:03/mi

1:15:55

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

12:22/mi

1:54:20

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

12:04/mi

2:31:47

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

12:24/mi

2:40:06

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

13:01/mi

3:11:46

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

13:46/mi

3:54:30

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

13:16/mi

4:35:41

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

13:02/mi

5:16:09

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

12:21/mi

5:32:59

↑ 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

2:40:0612:14 /mi⚡ faster

2nd Half

2:52:5313:11 /mi+8.0%

Positive split — 8.0% slower in the second half

AI Race Performance Report

Deena'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	38:29	12:24	3.11 mi	38:29	12:24	-
10K	1:15:55	12:14	3.10 mi	37:26	12:03	-0:21
15K	1:54:20	12:17	3.11 mi	38:25	12:22	+0:19
20K	2:31:47	12:13	3.11 mi	37:27	12:04	-0:18
Half(13.10 mi)	2:40:06	12:14	0.67 mi	8:19	12:24	+0:20
25K	3:11:46	12:21	2.43 mi	31:40	13:01	+0:37
30K	3:54:30	12:35	3.11 mi	42:44	13:46	+0:45
35K	4:35:41	12:41	3.11 mi	41:11	13:16	-0:30
40K	5:16:09	12:44	3.10 mi	40:28	13:02	-0:14
Finish(26.22 mi)	5:32:59	12:43	1.37 mi	16:50	12:21	-0:41

Trend:

Faster pace

Steady pace

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Checkpoints & Pacing

Pace Line

Fastest Pace

12:03 /mi

Average Pace

12:43 /mi

Slowest Pace

13:46 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

4:09:04

75% of race

Time at Steady Pace

1:23:55

25% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 12:42 /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	55502	22933	22933	50224	19541	19541
10K	3.10 mi	53779+1723	21786+1147	21786+1147	52064	20696	20696
15K	3.11 mi	52649+1130	21053+733	21053+733	50224	19541	19541
20K	3.11 mi	51441+1208	20317+736	20317+736	48033	18411	18411
Half(13.10 mi)	0.67 mi	51173+268	20171+146	20171+146	47696	18482	18482
25K	2.43 mi	50411+762	19722+449	19722+449	47559	18510	18510
30K	3.11 mi	49987+424	19567+155	19567+155	48026	19084	19084
35K	3.11 mi	48928+1059	19081+486	19081+486	42229	16506	16506
40K	3.10 mi	48272+656	18805+276	18805+276	42537	16948	16948
Finish(26.22 mi)	1.37 mi	47970+302	18671+134	18671+134	42332	16771	16771

16771

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