Rachel O'Brien

Naperville

Bib: 68709 F

0:00

0:00

/ mi

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Overall

#0 / 54109

Gender (Female)

#0 / 24561

Division (F30-34)

#0 / 4161

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

10:15/mi

31:51

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

10:58/mi

1:05:55

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

10:33/mi

1:38:42

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

11:18/mi

2:13:47

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

11:55/mi

2:21:55

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

13:07/mi

2:53:43

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

12:10/mi

3:31:30

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

12:40/mi

4:10:51

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

13:46/mi

4:53:38

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

12:24/mi

5:10:33

↑ 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

2:21:5510:50 /mi⚡ faster

2nd Half

2:48:3812:52 /mi+18.8%

Positive split — 18.8% slower in the second half

AI Race Performance Report

Rachel'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	31:51	10:15	3.11 mi	31:51	10:15	-
10K	1:05:55	10:36	3.10 mi	34:04	10:58	+0:43
15K	1:38:42	10:35	3.11 mi	32:47	10:33	-0:25
20K	2:13:47	10:46	3.11 mi	35:05	11:18	+0:45
Half(13.11 mi)	2:21:55	10:50	0.68 mi	8:08	11:55	+0:37
25K	2:53:43	11:11	2.42 mi	31:48	13:07	+1:12
30K	3:31:30	11:21	3.11 mi	37:47	12:10	-0:57
35K	4:10:51	11:32	3.11 mi	39:21	12:40	+0:30
40K	4:53:38	11:49	3.10 mi	42:47	13:46	+1:06
Finish(26.22 mi)	5:10:33	11:51	1.37 mi	16:55	12:24	-1:22

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

10:15 /mi

Average Pace

11:51 /mi

Slowest Pace

13:46 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:13:47

43% of race

Time at Steady Pace

1:42:11

33% of race

Time at Slower Pace

1:14:35

24% of race

Average Pace: 11:51 /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	F30-34	Seg. Overall	Seg. Females	Seg. F30-34
5K	3.11 mi	37639	14008	2452	40978	15959	2802
10K	3.10 mi	40028-2389	15384-1376	2685-233	41944	16595	2901
15K	3.11 mi	40265-237	15508-124	2720-35	40978	15959	2802
20K	3.11 mi	41044-779	16037-529	2814-94	43283	17488	3071
Half(13.11 mi)	0.68 mi	41243-199	16178-141	2839-25	43680	17961	3134
25K	2.42 mi	42853-1610	17247-1069	3014-175	47267	20272	3491
30K	3.11 mi	42534+319	17199+48	3009+5	41083	16873	2946
35K	3.11 mi	42320+214	17200-1	3010-1	40909	17202	2990
40K	3.10 mi	42391-71	17424-224	3026-16	42646	18550	3190
Finish(26.22 mi)	1.37 mi	42433-42	17487-63	3047-21	42453	18551	3250

18551

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