Sacha Withey

Bib: 29218 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

12:03/mi

37:26

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

11:54/mi

1:14:22

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

12:43/mi

1:53:52

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

12:48/mi

2:33:38

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

13:01/mi

2:42:22

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

14:05/mi

3:16:39

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

14:05/mi

4:00:23

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

15:34/mi

4:48:43

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

12:56/mi

5:28:53

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

13:45/mi

5:47:37

↑ 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

2:42:2212:24 /mi⚡ faster

2nd Half

3:05:1514:08 /mi+14.1%

Positive split — 14.1% slower in the second half

AI Race Performance Report

Sacha'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	37:26	12:03	3.11 mi	37:26	12:03	-
10K	1:14:22	11:59	3.10 mi	36:56	11:54	-0:09
15K	1:53:52	12:14	3.11 mi	39:30	12:43	+0:49
20K	2:33:38	12:22	3.11 mi	39:46	12:48	+0:05
Half(13.10 mi)	2:42:22	12:24	0.67 mi	8:44	13:01	+0:13
25K	3:16:39	12:40	2.43 mi	34:17	14:05	+1:04
30K	4:00:23	12:54	3.11 mi	43:44	14:05	0:00
35K	4:48:43	13:17	3.11 mi	48:20	15:34	+1:29
40K	5:28:53	13:14	3.10 mi	40:10	12:56	-2:38
Finish(26.22 mi)	5:47:37	13:17	1.37 mi	18:44	13:45	+0:49

Trend:

Faster pace

Steady pace

Slower pace

Est.Checkpoint not recorded (estimated)

~Segment time uses estimated prior

More below

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Checkpoints & Pacing

Pace Line

Fastest Pace

11:54 /mi

Average Pace

13:16 /mi

Slowest Pace

15:34 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:14:22

21% of race

Time at Steady Pace

2:08:10

37% of race

Time at Slower Pace

2:25:05

42% of race

Average Pace: 13:15 /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	54262	22077	22077	51667	20488	20488
10K	3.10 mi	52765+1497	21090+987	21090+987	51356	20204	20204
15K	3.11 mi	52426+339	20903+187	20903+187	51667	20488	20488
20K	3.11 mi	52048+378	20719+184	20719+184	51177	20375	20375
Half(13.10 mi)	0.67 mi	51928+120	20657+62	20657+62	50379	20118	20118
25K	2.43 mi	51847+81	20684-27	20684-27	51450	20811	20811
30K	3.11 mi	51417+430	20485+199	20485+199	49360	19823	19823
35K	3.11 mi	51680-263	20751-266	20751-266	52537	21977	21977
40K	3.10 mi	50802+878	20321+430	20321+430	41947	16641	16641
Finish(26.22 mi)	1.37 mi	50783+19	20335-14	20335-14	50161	20850	20850

20850

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