Fiona O'Leary

Boston

Bib: 64279 F

0:00

0:00

/ mi

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Overall

#0 / 54109

Gender (Female)

#0 / 24561

Division (F25-29)

#0 / 5362

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

11:10/mi

34:43

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

11:25/mi

1:10:12

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

11:23/mi

1:45:34

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

11:41/mi

2:21:53

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

12:10/mi

2:30:11

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

12:03/mi

2:59:24

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

12:20/mi

3:37:43

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

15:14/mi

4:25:04

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

18:57/mi

5:23:58

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

11:53/mi

5:40:10

↑ 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

2:30:1111:27 /mi⚡ faster

2nd Half

3:09:5914:30 /mi+26.5%

Positive split — 26.5% 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	34:43	11:10	3.11 mi	34:43	11:10	-
10K	1:10:12	11:18	3.10 mi	35:29	11:25	+0:15
15K	1:45:34	11:20	3.11 mi	35:22	11:23	-0:02
20K	2:21:53	11:25	3.11 mi	36:19	11:41	+0:18
Half(13.11 mi)	2:30:11	11:27	0.68 mi	8:18	12:10	+0:29
25K	2:59:24	11:33	2.42 mi	29:13	12:03	-0:07
30K	3:37:43	11:41	3.11 mi	38:19	12:20	+0:17
35K	4:25:04	12:11	3.11 mi	47:21	15:14	+2:54
40K	5:23:58	13:02	3.10 mi	58:54	18:57	+3:43
Finish(26.22 mi)	5:40:10	12:59	1.37 mi	16:12	11:53	-7:04

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

11:10 /mi

Average Pace

12:59 /mi

Slowest Pace

18:57 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:53:55

69% of race

Time at Slower Pace

1:46:15

31% of race

Average Pace: 12:58 /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	F25-29	Seg. Overall	Seg. Females	Seg. F25-29
5K	3.11 mi	45315	18649	4146	45862	18966	4313
10K	3.10 mi	44993+322	18434+215	4153-7	44709	18274	4143
15K	3.11 mi	45224-231	18575-141	4190-37	45862	18966	4313
20K	3.11 mi	45201+23	18593-18	4215-25	45140	18662	4278
Half(13.11 mi)	0.68 mi	45156+45	18585+8	4221-6	44652	18566	4275
25K	2.42 mi	44854+302	18450+135	4197+24	43732	18093	4159
30K	3.11 mi	44267+587	18214+236	4150+47	41799	17275	3984
35K	3.11 mi	45411-1144	18998-784	4335-185	49502	21966	4931
40K	3.10 mi	47645-2234	20486-1488	4645-310	53491	24247	5290
Finish(26.22 mi)	1.37 mi	47352+293	20346+140	4621+24	39711	17150	4092

17150

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