Amber Jefferson

Bib: 59163 F GB

0:00

0:00

/ mi

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Overall

#0 / 59786

Gender (Female)

#0 / 26115

Division (F18-39)

#0 / 14744

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

9:49/mi

30:28

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

10:29/mi

1:03:01

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

11:03/mi

1:37:19

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

10:52/mi

2:11:02

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

13:00/mi

2:19:45

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

11:32/mi

2:47:49

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

13:35/mi

3:29:58

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

14:26/mi

4:14:48

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

12:37/mi

4:53:59

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

13:41/mi

5:12:38

↑ 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

2:19:4510:41 /mi⚡ faster

2nd Half

2:52:5313:11 /mi+23.7%

Positive split — 23.7% slower in the second half

AI Race Performance Report

Amber'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	30:28	9:49	3.11 mi	30:28	9:49	-
10K	1:03:01	10:09	3.10 mi	32:33	10:29	+0:40
15K	1:37:19	10:27	3.11 mi	34:18	11:03	+0:34
20K	2:11:02	10:33	3.11 mi	33:43	10:52	-0:11
Half(13.10 mi)	2:19:45	10:41	0.67 mi	8:43	13:00	+2:08
25K	2:47:49	10:49	2.43 mi	28:04	11:32	-1:28
30K	3:29:58	11:16	3.11 mi	42:09	13:35	+2:03
35K	4:14:48	11:43	3.11 mi	44:50	14:26	+0:51
40K	4:53:59	11:50	3.10 mi	39:11	12:37	-1:49
Finish(26.22 mi)	5:12:38	11:56	1.37 mi	18:39	13:41	+1:04

Trend:

Faster pace

Steady pace

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More below

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Checkpoints & Pacing

Pace Line

Fastest Pace

9:49 /mi

Average Pace

11:56 /mi

Slowest Pace

14:26 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:39:06

51% of race

Time at Steady Pace

47:54

15% of race

Time at Slower Pace

1:45:38

34% of race

Average Pace: 11:55 /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	36661	11731	11731	41949	14585	14585
10K	3.10 mi	38831-2170	12810-1079	12810-1079	41075	14032	14032
15K	3.11 mi	39961-1130	13424-614	13424-614	41949	14585	14585
20K	3.11 mi	40023-62	13551-127	13551-127	40630	14147	14147
Half(13.10 mi)	0.67 mi	40850-827	14018-467	14018-467	50231	20025	20025
25K	2.43 mi	40600+250	14042-24	14042-24	40405	14488	14488
30K	3.11 mi	42151-1551	15044-1002	15044-1002	47142	18575	18575
35K	3.11 mi	43397-1246	15946-902	15946-902	48156	19613	19613
40K	3.10 mi	42956+441	15868+78	15868+78	39778	15625	15625
Finish(26.22 mi)	1.37 mi	43368-412	16138-270	16138-270	49855	20677	20677

20677

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