Brenna Williams

Chicago

Bib: 67210 F

0:00

0:00

/ mi

Be the first to cheer!

Overall

#0 / 54109

Top 42%

Gender (Female)

#0 / 24561

Top 29%

Division (F25-29)

#0 / 5362

Top 31%

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

9:32/mi

29:38

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

9:19/mi

58:35

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

9:04/mi

1:26:46

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

9:02/mi

1:54:51

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

9:14/mi

2:01:09

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

9:01/mi

2:23:00

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

8:53/mi

2:50:37

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

9:04/mi

3:18:47

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

9:06/mi

3:47:02

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

8:24/mi

3:58:29

↑ 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

2:01:099:14 /mi+3.2%

2nd Half

1:57:208:57 /mi✓ faster

Negative split — 3.2% faster in the second half

AI Race Performance Report

Brenna's race, broken down like a coach

The full Race Story, performance analysis, segment & passing breakdowns, and where the race turned. Free to unlock — for anyone.

Free account · no payment

Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	29:38	9:32	3.11 mi	29:38	9:32	-
10K	58:35	9:26	3.10 mi	28:57	9:19	-0:13
15K	1:26:46	9:19	3.11 mi	28:11	9:04	-0:15
20K	1:54:51	9:14	3.11 mi	28:05	9:02	-0:02
Half(13.11 mi)	2:01:09	9:14	0.68 mi	6:18	9:14	+0:12
25K	2:23:00	9:12	2.42 mi	21:51	9:01	-0:13
30K	2:50:37	9:09	3.11 mi	27:37	8:53	-0:08
35K	3:18:47	9:08	3.11 mi	28:10	9:04	+0:11
40K	3:47:02	9:08	3.10 mi	28:15	9:06	+0:02
Finish(26.22 mi)	3:58:29	9:06	1.37 mi	11:27	8:24	-0:42

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:24 /mi

Average Pace

9:06 /mi

Slowest Pace

9:32 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:59:54

75% of race

Time at Steady Pace

58:35

25% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:06 /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	31467	10759	2416	28507	9200	2109
10K	3.10 mi	30213+1254	10142+617	2288+128	29220	9662	2175
15K	3.11 mi	29610+603	9798+344	2232+56	28507	9200	2109
20K	3.11 mi	28686+924	9351+447	2129+103	25930	8040	1847
Half(13.11 mi)	0.68 mi	28497+189	9262+89	2108+21	26022	8192	1927
25K	2.42 mi	27621+876	8889+373	2022+86	24120	7439	1742
30K	3.11 mi	25955+1666	8243+646	1886+136	20030	5886	1391
35K	3.11 mi	24659+1296	7795+448	1803+83	19253	5941	1433
40K	3.10 mi	23119+1540	7318+477	1704+99	16067	5058	1226
Finish(26.22 mi)	1.37 mi	22471+648	7085+233	1656+48	13094	3931	1024

3931

Passing Analysis

No position changes recorded for this athlete.

More below

See the rest of Brenna's race

Checkpoint splits, rankings, passing analysis and qualifying. One free sign-in reveals them here — and on every race you look up.

All Results

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

Chicago Event Management

Race timed by

Mika Timing