Headley Duncan

Bib: 26887 M US

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 59786

Gender (Male)

#0 / 33594

Masters (Masters Men)

#0 / 16876

Division (M45-49)

#0 / 4167

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

9:03/mi

28:05

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

9:02/mi

56:08

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

9:16/mi

1:24:54

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

10:21/mi

1:57:01

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

10:23/mi

2:03:59

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

10:47/mi

2:30:13

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

13:05/mi

3:10:49

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

14:37/mi

3:56:11

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

14:40/mi

4:41:45

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

13:23/mi

4:59:59

↑ 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

2:03:599:28 /mi⚡ faster

2nd Half

2:56:0013:25 /mi+42.0%

Positive split — 42.0% slower in the second half

AI Race Performance Report

Headley'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	28:05	9:03	3.11 mi	28:05	9:03	-
10K	56:08	9:03	3.10 mi	28:03	9:02	-0:01
15K	1:24:54	9:07	3.11 mi	28:46	9:16	+0:14
20K	1:57:01	9:25	3.11 mi	32:07	10:21	+1:05
Half(13.10 mi)	2:03:59	9:28	0.67 mi	6:58	10:23	+0:02
25K	2:30:13	9:41	2.43 mi	26:14	10:47	+0:24
30K	3:10:49	10:15	3.11 mi	40:36	13:05	+2:18
35K	3:56:11	10:52	3.11 mi	45:22	14:37	+1:32
40K	4:41:45	11:21	3.10 mi	45:34	14:40	+0:03
Finish(26.22 mi)	4:59:59	11:27	1.37 mi	18:14	13:23	-1:17

Trend:

Faster pace

Steady pace

Slower pace

More below

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Checkpoints & Pacing

Pace Line

Fastest Pace

9:02 /mi

Average Pace

11:27 /mi

Slowest Pace

14:40 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:24:54

28% of race

Time at Steady Pace

1:05:19

22% of race

Time at Slower Pace

2:29:46

50% of race

Average Pace: 11:26 /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	M45-49	Seg. Overall	Seg. Males	Seg. M45-49
5K	3.11 mi	27399	19511	19511	24700	17889	17889
10K	3.10 mi	26006+1393	18648+863	18648+863	24948	17980	17980
15K	3.11 mi	25438+568	18321+327	18321+327	24700	17889	17889
20K	3.11 mi	29238-3800	20650-2329	20650-2329	36533	24453	24453
Half(13.10 mi)	0.67 mi	29482-244	20790-140	20790-140	33865	22938	22938
25K	2.43 mi	30442-960	21269-479	21269-479	35356	23422	23422
30K	3.11 mi	33789-3347	22949-1680	22949-1680	44787	27456	27456
35K	3.11 mi	37088-3299	24419-1470	24419-1470	48937	28807	28807
40K	3.10 mi	39437-2349	25363-944	25363-944	51313	29796	29796
Finish(26.22 mi)	1.37 mi	40121-684	25654-291	25654-291	48387	28414	28414

28414

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