Gemma Collister

Bib: 20634 F GB

0:00

0:00

/ mi

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Overall

#0 / 59786

Gender (Female)

#0 / 26115

Top 44%

Division (F18-39)

#0 / 14744

Top 45%

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

10:17/mi

31:55

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

10:12/mi

1:03:35

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

10:33/mi

1:36:20

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

10:14/mi

2:08:05

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

11:13/mi

2:15:36

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

10:26/mi

2:40:59

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

11:11/mi

3:15:43

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

11:25/mi

3:51:11

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

11:01/mi

4:25:22

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

10:59/mi

4:40:20

↑ 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

2:15:3610:22 /mi⚡ faster

2nd Half

2:24:4411:02 /mi+6.7%

Positive split — 6.7% slower in the second half

AI Race Performance Report

Gemma'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	31:55	10:17	3.11 mi	31:55	10:17	-
10K	1:03:35	10:14	3.10 mi	31:40	10:12	-0:05
15K	1:36:20	10:21	3.11 mi	32:45	10:33	+0:21
20K	2:08:05	10:19	3.11 mi	31:45	10:14	-0:19
Half(13.10 mi)	2:15:36	10:22	0.67 mi	7:31	11:13	+0:59
25K	2:40:59	10:22	2.43 mi	25:23	10:26	-0:47
30K	3:15:43	10:30	3.11 mi	34:44	11:11	+0:45
35K	3:51:11	10:38	3.11 mi	35:28	11:25	+0:14
40K	4:25:22	10:41	3.10 mi	34:11	11:01	-0:24
Finish(26.22 mi)	4:40:20	10:42	1.37 mi	14:58	10:59	-0:02

Trend:

Faster pace

Steady pace

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Checkpoints & Pacing

Pace Line

Fastest Pace

10:12 /mi

Average Pace

10:42 /mi

Slowest Pace

11:25 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

4:04:52

87% of race

Time at Steady Pace

35:28

13% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:41 /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	41681	14308	14308	37780	12403	12403
10K	3.10 mi	39799+1882	13304+1004	13304+1004	38360	12624	12624
15K	3.11 mi	38943+856	12909+395	12909+395	37780	12403	12403
20K	3.11 mi	37908+1035	12471+438	12471+438	35543	11551	11551
Half(13.10 mi)	0.67 mi	38032-124	12562-91	12562-91	40534	14331	14331
25K	2.43 mi	36927+1105	12151+411	12151+411	32732	10603	10603
30K	3.11 mi	36227+700	11981+170	11981+170	33893	11636	11636
35K	3.11 mi	35189+1038	11725+256	11725+256	31119	11018	11018
40K	3.10 mi	34086+1103	11443+282	11443+282	27976	10086	10086
Finish(26.22 mi)	1.37 mi	33843+243	11405+38	11405+38	31349	11626	11626

11626

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