Sean O'Reilly

Chicago

Bib: 10104 M

0:00

0:00

/ mi

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Overall

#0 / 54109

Top 1%

Gender (Male)

#0 / 29548

Top 2%

Division (M35-39)

#0 / 4653

Top 2%

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

6:03/mi

18:47

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

6:10/mi

37:58

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

6:01/mi

56:41

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

5:58/mi

1:15:14

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

6:01/mi

1:19:20

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

5:58/mi

1:33:49

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

6:01/mi

1:52:31

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

6:10/mi

2:11:41

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

6:09/mi

2:30:46

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

5:57/mi

2:38:53

↑ 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

1:19:206:03 /mi⚖️ balanced

2nd Half

1:19:336:04 /mi⚖️ balanced

Even split — consistent pacing between halves

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	18:47	6:03	3.11 mi	18:47	6:03	-
10K	37:58	6:07	3.10 mi	19:11	6:10	+0:07
15K	56:41	6:05	3.11 mi	18:43	6:01	-0:09
20K	1:15:14	6:03	3.11 mi	18:33	5:58	-0:03
Half(13.11 mi)	1:19:20	6:03	0.68 mi	4:06	6:01	+0:03
25K	1:33:49	6:02	2.42 mi	14:29	5:58	-0:03
30K	1:52:31	6:02	3.11 mi	18:42	6:01	+0:03
35K	2:11:41	6:03	3.11 mi	19:10	6:10	+0:09
40K	2:30:46	6:04	3.10 mi	19:05	6:09	-0:01
Finish(26.22 mi)	2:38:53	6:04	1.37 mi	8:07	5:57	-0:12

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

5:57 /mi

Average Pace

6:04 /mi

Slowest Pace

6:10 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:38:53

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:04 /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	M35-39	Seg. Overall	Seg. Males	Seg. M35-39
5K	3.11 mi	896	850	172	991	945	184
10K	3.10 mi	1052-156	999-149	204-32	1236	1178	241
15K	3.11 mi	1025+27	976+23	196+8	991	945	184
20K	3.11 mi	924+101	881+95	173+23	671	647	124
Half(13.11 mi)	0.68 mi	907+17	864+17	171+2	685	656	131
25K	2.42 mi	845+62	810+54	161+10	674	646	124
30K	3.11 mi	781+64	750+60	145+16	582	553	97
35K	3.11 mi	737+44	706+44	133+12	675	643	120
40K	3.10 mi	656+81	626+80	110+23	447	418	83
Finish(26.22 mi)	1.37 mi	620+36	593+33	104+6	388	363	72

363

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