Grace Halliday

Bib: 64555 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

11:31/mi

35:46

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

11:35/mi

1:11:44

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

11:57/mi

1:48:51

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

11:29/mi

2:24:31

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

11:35/mi

2:32:17

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

11:31/mi

3:00:19

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

11:47/mi

3:36:53

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

11:47/mi

4:13:27

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

12:27/mi

4:52:07

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

11:55/mi

5:08:22

↑ 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

2:32:1711:38 /mi⚡ faster

2nd Half

2:36:0511:54 /mi+2.5%

Positive split — 2.5% slower in the second half

AI Race Performance Report

Grace's race, broken down like a coach

The full Race Story, performance analysis, segment & passing breakdowns, and where the race turned. Free to unlock — for anyone.

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	35:46	11:31	3.11 mi	35:46	11:31	-
10K	1:11:44	11:33	3.10 mi	35:58	11:35	+0:04
15K	1:48:51	11:41	3.11 mi	37:07	11:57	+0:22
20K	2:24:31	11:38	3.11 mi	35:40	11:29	-0:28
Half(13.10 mi)	2:32:17	11:38	0.67 mi	7:46	11:35	+0:06
25K	3:00:19	11:37	2.43 mi	28:02	11:31	-0:04
30K	3:36:53	11:39	3.11 mi	36:34	11:47	+0:16
35K	4:13:27	11:40	3.11 mi	36:34	11:47	0:00
40K	4:52:07	11:46	3.10 mi	38:40	12:27	+0:40
Finish(26.22 mi)	5:08:22	11:47	1.37 mi	16:15	11:55	-0:32

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

11:29 /mi

Average Pace

11:46 /mi

Slowest Pace

12:27 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

4:29:42

87% of race

Time at Steady Pace

38:40

13% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 11:46 /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	51793	20392	20392	48203	18263	18263
10K	3.10 mi	50653+1140	19677+715	19677+715	49680	19113	19113
15K	3.11 mi	49687+966	19090+587	19090+587	48203	18263	18263
20K	3.11 mi	48350+1337	18349+741	18349+741	45014	16624	16624
Half(13.10 mi)	0.67 mi	48064+286	18209+140	18209+140	43209	15872	15872
25K	2.43 mi	46515+1549	17384+825	17384+825	40334	14454	14454
30K	3.11 mi	44804+1711	16515+869	16515+869	37650	13549	13549
35K	3.11 mi	42951+1853	15714+801	15714+801	33367	12111	12111
40K	3.10 mi	42458+493	15605+109	15605+109	38623	15097	15097
Finish(26.22 mi)	1.37 mi	42246+212	15544+61	15544+61	39095	15222	15222

15222

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