Natasha O'Sullivan

Bib: 64471 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

10:28/mi

32:30

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

11:09/mi

1:07:08

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

11:38/mi

1:43:14

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

11:14/mi

2:18:06

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

11:30/mi

2:25:49

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

11:27/mi

2:53:41

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

11:42/mi

3:30:00

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

11:08/mi

4:04:33

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

11:31/mi

4:40:18

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

11:57/mi

4:56:35

↑ 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

2:25:4911:08 /mi⚡ faster

2nd Half

2:30:4611:30 /mi+3.4%

Positive split — 3.4% slower in the second half

AI Race Performance Report

Natasha'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	32:30	10:28	3.11 mi	32:30	10:28	-
10K	1:07:08	10:49	3.10 mi	34:38	11:09	+0:41
15K	1:43:14	11:05	3.11 mi	36:06	11:38	+0:29
20K	2:18:06	11:07	3.11 mi	34:52	11:14	-0:24
Half(13.10 mi)	2:25:49	11:08	0.67 mi	7:43	11:30	+0:16
25K	2:53:41	11:11	2.43 mi	27:52	11:27	-0:03
30K	3:30:00	11:16	3.11 mi	36:19	11:42	+0:15
35K	4:04:33	11:15	3.11 mi	34:33	11:08	-0:34
40K	4:40:18	11:17	3.10 mi	35:45	11:31	+0:23
Finish(26.22 mi)	4:56:35	11:20	1.37 mi	16:17	11:57	+0:26

Trend:

Faster pace

Steady pace

Slower pace

More below

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Checkpoints & Pacing

Pace Line

Fastest Pace

10:28 /mi

Average Pace

11:19 /mi

Slowest Pace

11:57 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:52:08

58% of race

Time at Steady Pace

2:04:27

42% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 11:19 /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	43475	15339	15339	46167	17017	17017
10K	3.10 mi	45181-1706	16355-1016	16355-1016	46658	17225	17225
15K	3.11 mi	45453-272	16517-162	16517-162	46167	17017	17017
20K	3.11 mi	44791+662	16187+330	16187+330	43367	15694	15694
Half(13.10 mi)	0.67 mi	44636+155	16132+55	16132+55	42695	15557	15557
25K	2.43 mi	43503+1133	15599+533	15599+533	39878	14196	14196
30K	3.11 mi	42165+1338	15053+546	15053+546	37137	13295	13295
35K	3.11 mi	40018+2147	14144+909	14144+909	29178	10093	10093
40K	3.10 mi	38996+1022	13790+354	13790+354	31770	11801	11801
Finish(26.22 mi)	1.37 mi	39049-53	13892-102	13892-102	39278	15298	15298

15298

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