Sian Anstey

Bib: 63511 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

10:10/mi

31:34

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

10:56/mi

1:05:29

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

12:30/mi

1:44:19

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

12:57/mi

2:24:32

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

14:02/mi

2:33:57

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

13:52/mi

3:07:43

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

14:10/mi

3:51:42

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

14:10/mi

4:35:41

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

14:30/mi

5:20:42

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

13:37/mi

5:39:16

↑ 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

2:33:5711:46 /mi⚡ faster

2nd Half

3:05:1914:08 /mi+20.4%

Positive split — 20.4% slower in the second half

AI Race Performance Report

Sian'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	31:34	10:10	3.11 mi	31:34	10:10	-
10K	1:05:29	10:33	3.10 mi	33:55	10:56	+0:46
15K	1:44:19	11:12	3.11 mi	38:50	12:30	+1:34
20K	2:24:32	11:38	3.11 mi	40:13	12:57	+0:27
Half(13.10 mi)	2:33:57	11:46	0.67 mi	9:25	14:02	+1:05
25K	3:07:43	12:06	2.43 mi	33:46	13:52	-0:10
30K	3:51:42	12:26	3.11 mi	43:59	14:10	+0:18
35K	4:35:41	12:41	3.11 mi	43:59	14:10	0:00
40K	5:20:42	12:55	3.10 mi	45:01	14:30	+0:20
Finish(26.22 mi)	5:39:16	12:57	1.37 mi	18:34	13:37	-0:53

Trend:

Faster pace

Steady pace

Slower pace

More below

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Checkpoints & Pacing

Pace Line

Fastest Pace

10:10 /mi

Average Pace

12:57 /mi

Slowest Pace

14:30 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:24:32

43% of race

Time at Steady Pace

3:14:44

57% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 12:56 /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	40469	13662	13662	50817	19927	19927
10K	3.10 mi	42744-2275	14907-1245	14907-1245	44958	16256	16256
15K	3.11 mi	46384-3640	17084-2177	17084-2177	50817	19927	19927
20K	3.11 mi	48365-1981	18361-1277	18361-1277	51683	20703	20703
Half(13.10 mi)	0.67 mi	48753-388	18613-252	18613-252	53681	22192	22192
25K	2.43 mi	49148-395	18939-326	18939-326	50744	20399	20399
30K	3.11 mi	49235-87	19110-171	19110-171	49710	20020	20020
35K	3.11 mi	48929+306	19082+28	19082+28	46887	18935	18935
40K	3.10 mi	49242-313	19379-297	19379-297	50601	21061	21061
Finish(26.22 mi)	1.37 mi	49260-18	19426-47	19426-47	49619	20555	20555

20555

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