Ian Williams

Bib: 12555 M GB

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 59786

Top 35%

Gender (Male)

#0 / 33594

Top 44%

Masters (Masters Men)

#0 / 16876

Top 40%

Division (M45-49)

#0 / 4167

Top 45%

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

8:49/mi

27:23

↑ 49 ft↓ 125 ft0.5% grade

54 ft elev

10K· 6.21 mi

8:30/mi

53:47

↑ 50 ft↓ 81 ft0.2% grade

24 ft elev

15K· 9.32 mi

8:40/mi

1:20:42

↑ 44 ft↓ 51 ft

18 ft elev

20K· 12.43 mi

8:34/mi

1:47:16

↑ 67 ft↓ 40 ft0.2% grade

45 ft elev

Half· 13.10 mi

8:48/mi

1:53:10

↓ 27 ft0.6% grade

25 ft elev

25K· 15.53 mi

8:54/mi

2:14:49

↑ 50 ft↓ 63 ft0.1% grade

12 ft elev

30K· 18.64 mi

9:30/mi

2:44:18

↑ 69 ft↓ 46 ft0.1% grade

35 ft elev

35K· 21.75 mi

10:04/mi

3:15:33

↑ 87 ft↓ 88 ft

34 ft elev

40K· 24.85 mi

10:35/mi

3:48:25

↑ 58 ft↓ 75 ft0.1% grade

17 ft elev

Finish· 26.22 mi

9:42/mi

4:01:38

↑ 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

1:53:108:39 /mi⚡ faster

2nd Half

2:08:289:48 /mi+13.5%

Positive split — 13.5% slower in the second half

AI Race Performance Report

Ian'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	27:23	8:49	3.11 mi	27:23	8:49	-
10K	53:47	8:40	3.10 mi	26:24	8:30	-0:19
15K	1:20:42	8:40	3.11 mi	26:55	8:40	+0:10
20K	1:47:16	8:38	3.11 mi	26:34	8:34	-0:06
Half(13.10 mi)	1:53:10	8:39	0.67 mi	5:54	8:48	+0:14
25K	2:14:49	8:41	2.43 mi	21:39	8:54	+0:06
30K	2:44:18	8:49	3.11 mi	29:29	9:30	+0:36
35K	3:15:33	9:00	3.11 mi	31:15	10:04	+0:34
40K	3:48:25	9:12	3.10 mi	32:52	10:35	+0:31
Finish(26.22 mi)	4:01:38	9:14	1.37 mi	13:13	9:42	-0:53

Trend:

Faster pace

Steady pace

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Checkpoints & Pacing

Pace Line

Fastest Pace

8:30 /mi

Average Pace

9:13 /mi

Slowest Pace

10:35 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

26:24

11% of race

Time at Steady Pace

1:48:25

45% of race

Time at Slower Pace

1:46:49

44% of race

Average Pace: 9:13 /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	M45-49	Seg. Overall	Seg. Males	Seg. M45-49
5K	3.11 mi	23957	17345	17345	17764	13308	13308
10K	3.10 mi	20831+3126	15319+2026	15319+2026	18316	13651	13651
15K	3.11 mi	19602+1229	14520+799	14520+799	17764	13308	13308
20K	3.11 mi	19264+338	14282+238	14282+238	18459	13747	13747
Half(13.10 mi)	0.67 mi	19195+69	14223+59	14223+59	18432	13706	13706
25K	2.43 mi	19136+59	14156+67	14156+67	19426	14229	14229
30K	3.11 mi	19453-317	14304-148	14304-148	21799	15485	15485
35K	3.11 mi	19859-406	14386-82	14386-82	22222	15234	15234
40K	3.10 mi	20860-1001	14857-471	14857-471	24856	16170	16170
Finish(26.22 mi)	1.37 mi	20912-52	14833+24	14833+24	20521	13686	13686

13686

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