Erin O'Leary

West Dundee

Bib: 71778 F

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 54109

Gender (Female)

#0 / 24561

Masters (Masters Women)

#0 / 9409

Division (F40-44)

#0 / 3124

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

13:43/mi

42:38

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

13:35/mi

1:24:50

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

12:16/mi

2:02:58

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

12:08/mi

2:40:41

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

12:13/mi

2:49:01

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

12:14/mi

3:18:41

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

12:25/mi

3:57:16

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

12:15/mi

4:35:18

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

12:55/mi

5:15:26

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

11:52/mi

5:31:37

↑ 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

2:49:0112:54 /mi+3.8%

2nd Half

2:42:3612:24 /mi✓ faster

Negative split — 3.8% faster 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	42:38	13:43	3.11 mi	42:38	13:43	-
10K	1:24:50	13:39	3.10 mi	42:12	13:35	-0:08
15K	2:02:58	13:12	3.11 mi	38:08	12:16	-1:19
20K	2:40:41	12:56	3.11 mi	37:43	12:08	-0:08
Half(13.11 mi)	2:49:01	12:54	0.68 mi	8:20	12:13	+0:05
25K	3:18:41	12:47	2.42 mi	29:40	12:14	+0:01
30K	3:57:16	12:44	3.11 mi	38:35	12:25	+0:11
35K	4:35:18	12:40	3.11 mi	38:02	12:15	-0:10
40K	5:15:26	12:41	3.10 mi	40:08	12:55	+0:40
Finish(26.22 mi)	5:31:37	12:39	1.37 mi	16:11	11:52	-1:03

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

11:52 /mi

Average Pace

12:39 /mi

Slowest Pace

13:43 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

4:06:47

74% of race

Time at Steady Pace

1:24:50

26% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 12:39 /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	F40-44	Seg. Overall	Seg. Females	Seg. F40-44
5K	3.11 mi	53246	23920	3042	49223	21179	2726
10K	3.10 mi	52550+696	23394+526	2981+61	51477	22621	2893
15K	3.11 mi	51759+791	22844+550	2911+70	49223	21179	2726
20K	3.11 mi	50682+1077	22145+699	2832+79	46851	19750	2553
Half(13.11 mi)	0.68 mi	50411+271	21971+174	2808+24	44814	18667	2418
25K	2.42 mi	49556+855	21431+540	2744+64	44402	18507	2396
30K	3.11 mi	48451+1105	20813+618	2666+78	42132	17485	2284
35K	3.11 mi	47260+1191	20163+650	2595+71	39006	16156	2125
40K	3.10 mi	46366+894	19712+451	2550+45	38836	16576	2171
Finish(26.22 mi)	1.37 mi	46110+256	19614+98	2534+16	39646	17115	2212

17115

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