Harriet Dukes

Bib: 31700 F GB

0:00

0:00

/ mi

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Overall

#0 / 59786

Gender (Female)

#0 / 26115

Top 45%

Division (F18-39)

#0 / 14744

Top 47%

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

11:37/mi

36:04

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

11:43/mi

1:12:28

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

11:10/mi

1:47:09

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

10:47/mi

2:20:37

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

10:43/mi

2:27:48

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

10:43/mi

2:53:52

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

10:39/mi

3:26:56

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

10:36/mi

3:59:51

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

10:02/mi

4:30:59

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

8:50/mi

4:43:01

↑ 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

2:27:4811:18 /mi+8.5%

2nd Half

2:15:1310:19 /mi✓ faster

Negative split — 8.5% faster in the second half

AI Race Performance Report

Harriet'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	36:04	11:37	3.11 mi	36:04	11:37	-
10K	1:12:28	11:40	3.10 mi	36:24	11:43	+0:06
15K	1:47:09	11:30	3.11 mi	34:41	11:10	-0:33
20K	2:20:37	11:19	3.11 mi	33:28	10:47	-0:23
Half(13.10 mi)	2:27:48	11:18	0.67 mi	7:11	10:43	-0:04
25K	2:53:52	11:12	2.43 mi	26:04	10:43	0:00
30K	3:26:56	11:07	3.11 mi	33:04	10:39	-0:04
35K	3:59:51	11:02	3.11 mi	32:55	10:36	-0:03
40K	4:30:59	10:55	3.10 mi	31:08	10:02	-0:34
Finish(26.22 mi)	4:43:01	10:49	1.37 mi	12:02	8:50	-1:12

Trend:

Faster pace

Steady pace

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Checkpoints & Pacing

Pace Line

Fastest Pace

8:50 /mi

Average Pace

10:48 /mi

Slowest Pace

11:43 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

43:10

15% of race

Time at Steady Pace

2:12:42

47% of race

Time at Slower Pace

1:47:09

38% of race

Average Pace: 10:48 /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	52308	20726	20726	42947	15140	15140
10K	3.10 mi	51335+973	20113+613	20113+613	50494	19631	19631
15K	3.11 mi	48556+2779	18382+1731	18382+1731	42947	15140	15140
20K	3.11 mi	46261+2295	17101+1281	17101+1281	40037	13825	13825
Half(13.10 mi)	0.67 mi	45740+521	16804+297	16804+297	36684	12304	12304
25K	2.43 mi	43596+2144	15654+1150	15654+1150	34876	11661	11661
30K	3.11 mi	40894+2702	14373+1281	14373+1281	30201	9887	9887
35K	3.11 mi	38427+2467	13304+1069	13304+1069	25694	8468	8468
40K	3.10 mi	35975+2452	12285+1019	12285+1019	21068	6990	6990
Finish(26.22 mi)	1.37 mi	34714+1261	11794+491	11794+491	13477	4100	4100

4100

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