Margaret O'Brien

Elmhurst

Bib: 40002 F

0:00

0:00

/ mi

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Overall

#0 / 54109

Gender (Female)

#0 / 24561

Division (F20-24)

#0 / 2002

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

10:54/mi

33:53

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

11:49/mi

1:10:37

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

10:12/mi

1:42:17

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

10:42/mi

2:15:33

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

11:35/mi

2:23:27

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

11:23/mi

2:51:02

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

11:58/mi

3:28:14

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

12:23/mi

4:06:43

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

12:23/mi

4:45:11

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

11:31/mi

5:00:54

↑ 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

2:23:2710:57 /mi⚡ faster

2nd Half

2:37:2712:01 /mi+9.8%

Positive split — 9.8% slower in the second half

AI Race Performance Report

Margaret'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	33:53	10:54	3.11 mi	33:53	10:54	-
10K	1:10:37	11:22	3.10 mi	36:44	11:49	+0:55
15K	1:42:17	10:58	3.11 mi	31:40	10:12	-1:37
20K	2:15:33	10:54	3.11 mi	33:16	10:42	+0:30
Half(13.11 mi)	2:23:27	10:57	0.68 mi	7:54	11:35	+0:53
25K	2:51:02	11:01	2.42 mi	27:35	11:23	-0:12
30K	3:28:14	11:10	3.11 mi	37:12	11:58	+0:35
35K	4:06:43	11:21	3.11 mi	38:29	12:23	+0:25
40K	4:45:11	11:28	3.10 mi	38:28	12:23	0:00
Finish(26.22 mi)	5:00:54	11:29	1.37 mi	15:43	11:31	-0:52

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

10:12 /mi

Average Pace

11:29 /mi

Slowest Pace

12:23 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:38:49

33% of race

Time at Steady Pace

1:27:56

29% of race

Time at Slower Pace

1:54:09

38% of race

Average Pace: 11:29 /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	Females	F20-24	Seg. Overall	Seg. Females	Seg. F20-24
5K	3.11 mi	43286	17369	1473	38355	14419	1216
10K	3.10 mi	45379-2093	18665-1296	1588-115	46566	19432	1653
15K	3.11 mi	43059+2320	17240+1425	1480+108	38355	14419	1216
20K	3.11 mi	42080+979	16677+563	1428+52	39729	15348	1322
Half(13.11 mi)	0.68 mi	42043+37	16675+2	1428	42169	17049	1479
25K	2.42 mi	41786+257	16600+75	1419+9	40774	16331	1388
30K	3.11 mi	41495+291	16570+30	1425-6	40269	16395	1395
35K	3.11 mi	41265+230	16573-3	1423+2	39680	16528	1404
40K	3.10 mi	40660+605	16400+173	1402+21	36248	15241	1291
Finish(26.22 mi)	1.37 mi	40582+78	16402-2	1405-3	37602	16070	1428

16070

Passing Analysis

No position changes recorded for this athlete.

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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