Liam O'Donnell

Chicago

Bib: 64763 M

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 54109

Gender (Male)

#0 / 29548

Masters (Masters Men)

#0 / 14666

Division (M40-44)

#0 / 4329

Race Day Weather

54°/44°F

few clouds

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

600 ft elev

5K· 3.11 mi

10:50/mi

33:41

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

11:00/mi

1:07:51

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

10:46/mi

1:41:18

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

11:17/mi

2:16:22

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

11:20/mi

2:24:06

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

13:18/mi

2:56:21

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

14:27/mi

3:41:14

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

14:35/mi

4:26:34

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

15:03/mi

5:13:19

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

15:58/mi

5:35:06

↑ 23 ft↓ 20 ft

606 ft elev

Course Elevation

227ft

Total climb

32ft

Range

589 to 621 ft

221ft

Total descent

About the height of a three-story building

The Course

Half Splits

1st Half· via Half

2:24:0611:00 /mi⚡ faster

2nd Half

3:11:0014:34 /mi+32.5%

Positive split — 32.5% slower in the second half

AI Race Performance Report

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	33:41	10:50	3.11 mi	33:41	10:50	-
10K	1:07:51	10:55	3.10 mi	34:10	11:00	+0:10
15K	1:41:18	10:52	3.11 mi	33:27	10:46	-0:14
20K	2:16:22	10:58	3.11 mi	35:04	11:17	+0:31
Half(13.11 mi)	2:24:06	11:00	0.68 mi	7:44	11:20	+0:03
25K	2:56:21	11:21	2.42 mi	32:15	13:18	+1:58
30K	3:41:14	11:52	3.11 mi	44:53	14:27	+1:09
35K	4:26:34	12:15	3.11 mi	45:20	14:35	+0:08
40K	5:13:19	12:36	3.10 mi	46:45	15:03	+0:28
Finish(26.22 mi)	5:35:06	12:47	1.37 mi	21:47	15:58	+0:55

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

10:46 /mi

Average Pace

12:47 /mi

Slowest Pace

15:58 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:24:06

43% of race

Time at Steady Pace

32:15

10% of race

Time at Slower Pace

2:38:45

47% of race

Average Pace: 12:47 /mi

Loading chart...

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	M40-44	Seg. Overall	Seg. Males	Seg. M40-44
5K	3.11 mi	42796	25737	3846	42388	25567	3818
10K	3.10 mi	42334+462	25550+187	3816+30	42155	25446	3811
15K	3.11 mi	42236+98	25508+42	3819-3	42388	25567	3818
20K	3.11 mi	42532-296	25582-74	3821-2	43252	25780	3839
Half(13.11 mi)	0.68 mi	42398+134	25516+66	3810+11	40835	24623	3667
25K	2.42 mi	43837-1439	26008-492	3874-64	47760	27174	3999
30K	3.11 mi	45131-1294	26412-404	3922-48	48653	27347	4021
35K	3.11 mi	45697-566	26523-111	3934-12	47657	26687	3951
40K	3.10 mi	46017-320	26512+11	3936-2	47421	26349	3898
Finish(26.22 mi)	1.37 mi	46604-587	26705-193	3954-18	52166	28629	4224

28629

Passing Analysis

No position changes recorded for this athlete.

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All Results

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Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

Chicago Event Management

Race timed by

Mika Timing