Duncan Chedburn

Bib: 51043 M GB

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 59786

Top 1%

Gender (Male)

#0 / 33594

Top 2%

Masters (Masters Men)

#0 / 16876

Top 1%

Division (M40-44)

#0 / 4826

Top 2%

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

6:04/mi

18:50

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

6:17/mi

38:21

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

6:23/mi

58:09

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

6:10/mi

1:17:17

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

6:16/mi

1:21:29

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

6:10/mi

1:36:28

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

6:10/mi

1:55:35

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

6:10/mi

2:14:43

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

6:12/mi

2:33:58

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

6:16/mi

2:42:30

↑ 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

1:21:296:14 /mi⚖️ balanced

2nd Half

1:21:016:11 /mi⚖️ balanced

Even split — consistent pacing between halves

AI Race Performance Report

Duncan'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	18:50	6:04	3.11 mi	18:50	6:04	-
10K	38:21	6:11	3.10 mi	19:31	6:17	+0:13
15K	58:09	6:15	3.11 mi	19:48	6:23	+0:06
20K	1:17:17	6:14	3.11 mi	19:08	6:10	-0:13
Half(13.10 mi)	1:21:29	6:14	0.67 mi	4:12	6:16	+0:06
25K	1:36:28	6:13	2.43 mi	14:59	6:10	-0:06
30K	1:55:35	6:13	3.11 mi	19:07	6:10	0:00
35K	2:14:43	6:12	3.11 mi	19:08	6:10	0:00
40K	2:33:58	6:12	3.10 mi	19:15	6:12	+0:02
Finish(26.22 mi)	2:42:30	6:13	1.37 mi	8:32	6:16	+0:04

Trend:

Faster pace

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Checkpoints & Pacing

Pace Line

Fastest Pace

6:04 /mi

Average Pace

6:12 /mi

Slowest Pace

6:23 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:22:42

88% of race

Time at Steady Pace

19:48

12% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:12 /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	Males	M40-44	Seg. Overall	Seg. Males	Seg. M40-44
5K	3.11 mi	992	952	952	1467	1405	1405
10K	3.10 mi	1270-278	1214-262	1214-262	1571	1502	1502
15K	3.11 mi	1328-58	1272-58	1272-58	1467	1405	1405
20K	3.11 mi	1294+34	1241+31	1241+31	1257	1210	1210
Half(13.10 mi)	0.67 mi	1281+13	1229+12	1229+12	1103	1064	1064
25K	2.43 mi	1242+39	1195+34	1195+34	1053	1016	1016
30K	3.11 mi	1116+126	1072+123	1072+123	712	689	689
35K	3.11 mi	972+144	940+132	940+132	616	598	598
40K	3.10 mi	882+90	853+87	853+87	599	572	572
Finish(26.22 mi)	1.37 mi	842+40	813+40	813+40	770	739	739

739

Passing Analysis

No position changes recorded for this athlete.

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Public Race Data

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Race managed by

London Marathon Events

Race timed by

Mika Timing