David Chu

Bib: 50522 M GB

0:00

0:00

/ mi

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Overall

#0 / 59786

Top 23%

Gender (Male)

#0 / 33594

Top 31%

Division (M18-39)

#0 / 16712

Top 33%

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

7:43/mi

23:57

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

8:04/mi

48:58

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

8:14/mi

1:14:32

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

8:04/mi

1:39:34

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

8:15/mi

1:45:06

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

8:00/mi

2:04:35

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

8:08/mi

2:29:49

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

8:58/mi

2:57:39

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

9:48/mi

3:28:03

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

11:08/mi

3:43:13

↑ 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

1:45:068:02 /mi⚡ faster

2nd Half

1:58:079:01 /mi+12.4%

Positive split — 12.4% slower in the second half

AI Race Performance Report

David'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	23:57	7:43	3.11 mi	23:57	7:43	-
10K	48:58	7:53	3.10 mi	25:01	8:04	+0:21
15K	1:14:32	8:00	3.11 mi	25:34	8:14	+0:10
20K	1:39:34	8:01	3.11 mi	25:02	8:04	-0:10
Half(13.10 mi)	1:45:06	8:02	0.67 mi	5:32	8:15	+0:11
25K	2:04:35	8:02	2.43 mi	19:29	8:00	-0:15
30K	2:29:49	8:03	3.11 mi	25:14	8:08	+0:08
35K	2:57:39	8:11	3.11 mi	27:50	8:58	+0:50
40K	3:28:03	8:23	3.10 mi	30:24	9:48	+0:50
Finish(26.22 mi)	3:43:13	8:32	1.37 mi	15:10	11:08	+1:20

Trend:

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Checkpoints & Pacing

Pace Line

Fastest Pace

7:43 /mi

Average Pace

8:31 /mi

Slowest Pace

11:08 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

23:57

11% of race

Time at Steady Pace

2:05:52

56% of race

Time at Slower Pace

1:13:24

33% of race

Average Pace: 8:31 /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	10864	8668	8668	13557	10506	10506
10K	3.10 mi	12040-1176	9402-734	9402-734	13591	10450	10450
15K	3.11 mi	12453-413	9681-279	9681-279	13557	10506	10506
20K	3.11 mi	12770-317	9914-233	9914-233	13666	10550	10550
Half(13.10 mi)	0.67 mi	12784-14	9927-13	9927-13	13216	10236	10236
25K	2.43 mi	12431+353	9659+268	9659+268	11317	8871	8871
30K	3.11 mi	11844+587	9221+438	9221+438	10165	8013	8013
35K	3.11 mi	12090-246	9299-78	9299-78	14039	10192	10192
40K	3.10 mi	12923-833	9726-427	9726-427	19357	13055	13055
Finish(26.22 mi)	1.37 mi	13861-938	10278-552	10278-552	32595	20337	20337

20337

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