Jonathan Chalmers

Bib: 38721 M GB

0:00

0:00

/ mi

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Overall

#0 / 59786

Top 45%

Gender (Male)

#0 / 33594

Division (M18-39)

#0 / 16712

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

9:24/mi

29:12

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

9:01/mi

57:12

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

9:11/mi

1:25:41

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

8:55/mi

1:53:23

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

9:21/mi

1:59:39

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

9:22/mi

2:22:27

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

10:08/mi

2:53:55

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

11:00/mi

3:28:03

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

12:05/mi

4:05:34

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

11:10/mi

4:20:47

↑ 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

1:59:399:09 /mi⚡ faster

2nd Half

2:21:0810:46 /mi+18.0%

Positive split — 18.0% slower in the second half

AI Race Performance Report

Jonathan'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	29:12	9:24	3.11 mi	29:12	9:24	-
10K	57:12	9:13	3.10 mi	28:00	9:01	-0:23
15K	1:25:41	9:12	3.11 mi	28:29	9:11	+0:10
20K	1:53:23	9:08	3.11 mi	27:42	8:55	-0:16
Half(13.10 mi)	1:59:39	9:09	0.67 mi	6:16	9:21	+0:26
25K	2:22:27	9:11	2.43 mi	22:48	9:22	+0:01
30K	2:53:55	9:20	3.11 mi	31:28	10:08	+0:46
35K	3:28:03	9:34	3.11 mi	34:08	11:00	+0:52
40K	4:05:34	9:53	3.10 mi	37:31	12:05	+1:05
Finish(26.22 mi)	4:20:47	9:58	1.37 mi	15:13	11:10	-0:55

Trend:

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Checkpoints & Pacing

Pace Line

Fastest Pace

8:55 /mi

Average Pace

9:57 /mi

Slowest Pace

12:05 /mi

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Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:22:27

55% of race

Time at Slower Pace

1:58:20

45% of race

Average Pace: 9:57 /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	M18-39	Seg. Overall	Seg. Males	Seg. M18-39
5K	3.11 mi	32121	22420	22420	23381	17033	17033
10K	3.10 mi	28582+3539	20223+2197	20223+2197	24683	17808	17808
15K	3.11 mi	26698+1884	19097+1126	19097+1126	23381	17033	17033
20K	3.11 mi	25406+1292	18283+814	18283+814	22530	16424	16424
Half(13.10 mi)	0.67 mi	25306+100	18205+78	18205+78	24493	17609	17609
25K	2.43 mi	25046+260	17994+211	17994+211	24375	17396	17396
30K	3.11 mi	25325-279	18064-70	18064-70	26440	18235	18235
35K	3.11 mi	25657-332	18026+38	18026+38	28254	18564	18564
40K	3.10 mi	26923-1266	18541-515	18541-515	36011	22139	22139
Finish(26.22 mi)	1.37 mi	27148-225	18600-59	18600-59	32930	20515	20515

20515

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