Jess Blackford

Bib: 27496 F GB

0:00

0:00

/ mi

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Overall

#0 / 59786

Gender (Female)

#0 / 26115

Top 38%

Division (F18-39)

#0 / 14744

Top 40%

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

10:01/mi

31:07

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

10:03/mi

1:02:18

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

10:28/mi

1:34:47

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

10:16/mi

2:06:39

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

10:14/mi

2:13:31

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

10:17/mi

2:38:33

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

10:24/mi

3:10:51

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

10:58/mi

3:44:53

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

10:30/mi

4:17:29

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

10:13/mi

4:31:24

↑ 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

2:13:3110:12 /mi⚡ faster

2nd Half

2:17:5310:31 /mi+3.3%

Positive split — 3.3% slower in the second half

AI Race Performance Report

Jess'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	31:07	10:01	3.11 mi	31:07	10:01	-
10K	1:02:18	10:02	3.10 mi	31:11	10:03	+0:02
15K	1:34:47	10:11	3.11 mi	32:29	10:28	+0:25
20K	2:06:39	10:12	3.11 mi	31:52	10:16	-0:12
Half(13.10 mi)	2:13:31	10:12	0.67 mi	6:52	10:14	-0:02
25K	2:38:33	10:13	2.43 mi	25:02	10:17	+0:03
30K	3:10:51	10:15	3.11 mi	32:18	10:24	+0:07
35K	3:44:53	10:21	3.11 mi	34:02	10:58	+0:34
40K	4:17:29	10:22	3.10 mi	32:36	10:30	-0:28
Finish(26.22 mi)	4:31:24	10:22	1.37 mi	13:55	10:13	-0:17

Trend:

Faster pace

Steady pace

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Checkpoints & Pacing

Pace Line

Fastest Pace

10:01 /mi

Average Pace

10:22 /mi

Slowest Pace

10:58 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

3:57:22

87% of race

Time at Steady Pace

34:02

13% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:21 /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	38824	12805	12805	36959	11989	11989
10K	3.10 mi	37673+1151	12229+576	12229+576	36839	11844	11844
15K	3.11 mi	37298+375	12054+175	12054+175	36959	11989	11989
20K	3.11 mi	36760+538	11901+153	11901+153	35849	11696	11696
Half(13.10 mi)	0.67 mi	36477+283	11797+104	11797+104	32615	10284	10284
25K	2.43 mi	35436+1041	11397+400	11397+400	31552	10025	10025
30K	3.11 mi	33805+1631	10808+589	10808+589	28405	9033	9033
35K	3.11 mi	32580+1225	10524+284	10524+284	28071	9579	9579
40K	3.10 mi	31234+1346	10160+364	10160+364	24297	8416	8416
Finish(26.22 mi)	1.37 mi	30818+416	10047+113	10047+113	24782	8599	8599

8599

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