Jack Marston

Bib: 36521 M GB

0:00

0:00

/ mi

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Overall

#0 / 59786

Gender (Male)

#0 / 33594

Division (M18-39)

#0 / 16712

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

10:00/mi

31:03

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

10:15/mi

1:02:51

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

10:45/mi

1:36:14

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

10:09/mi

2:07:46

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

10:32/mi

2:14:50

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

10:48/mi

2:41:07

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

10:48/mi

3:14:38

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

11:42/mi

3:50:58

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

10:59/mi

4:25:03

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

11:16/mi

4:40:24

↑ 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

2:14:5010:18 /mi⚡ faster

2nd Half

2:25:3411:06 /mi+8.0%

Positive split — 8.0% slower in the second half

AI Race Performance Report

Jack'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	31:03	10:00	3.11 mi	31:03	10:00	-
10K	1:02:51	10:07	3.10 mi	31:48	10:15	+0:15
15K	1:36:14	10:20	3.11 mi	33:23	10:45	+0:30
20K	2:07:46	10:17	3.11 mi	31:32	10:09	-0:36
Half(13.10 mi)	2:14:50	10:18	0.67 mi	7:04	10:32	+0:23
25K	2:41:07	10:23	2.43 mi	26:17	10:48	+0:16
30K	3:14:38	10:27	3.11 mi	33:31	10:48	0:00
35K	3:50:58	10:38	3.11 mi	36:20	11:42	+0:54
40K	4:25:03	10:40	3.10 mi	34:05	10:59	-0:43
Finish(26.22 mi)	4:40:24	10:43	1.37 mi	15:21	11:16	+0:17

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

10:00 /mi

Average Pace

10:42 /mi

Slowest Pace

11:42 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

3:48:43

82% of race

Time at Steady Pace

51:41

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:42 /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	Males	M18-39	Seg. Overall	Seg. Males	Seg. M18-39
5K	3.11 mi	38557	25834	25834	39526	26192	26192
10K	3.10 mi	38544+13	25830+4	25830+4	38736	25869	25869
15K	3.11 mi	38830-286	25923-93	25923-93	39526	26192	26192
20K	3.11 mi	37679+1151	25267+656	25267+656	34877	23610	23610
Half(13.10 mi)	0.67 mi	37465+214	25137+130	25137+130	35110	23541	23541
25K	2.43 mi	37004+461	24761+376	24761+376	35485	23481	23481
30K	3.11 mi	35726+1278	23940+821	23940+821	31244	20837	20837
35K	3.11 mi	35103+623	23383+557	23383+557	32856	20941	20941
40K	3.10 mi	33964+1139	22526+857	22526+857	27732	17720	17720
Finish(26.22 mi)	1.37 mi	33859+105	22402+124	22402+124	33816	20987	20987

20987

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