Ann Zerfas

Chicago

Bib: 25224 F

0:00

0:00

/ mi

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Overall

#0 / 54109

Top 48%

Gender (Female)

#0 / 24561

Top 36%

Division (F30-34)

#0 / 4161

Top 39%

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

8:39/mi

26:52

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

9:07/mi

55:10

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

9:07/mi

1:23:31

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

9:12/mi

1:52:06

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

9:30/mi

1:58:35

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

9:33/mi

2:21:45

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

10:23/mi

2:54:00

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

10:29/mi

3:26:35

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

9:52/mi

3:57:14

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

8:56/mi

4:09:25

↑ 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

1:58:359:03 /mi⚡ faster

2nd Half

2:10:509:59 /mi+10.3%

Positive split — 10.3% slower in the second half

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	26:52	8:39	3.11 mi	26:52	8:39	-
10K	55:10	8:53	3.10 mi	28:18	9:07	+0:28
15K	1:23:31	8:58	3.11 mi	28:21	9:07	0:00
20K	1:52:06	9:01	3.11 mi	28:35	9:12	+0:05
Half(13.11 mi)	1:58:35	9:03	0.68 mi	6:29	9:30	+0:18
25K	2:21:45	9:07	2.42 mi	23:10	9:33	+0:03
30K	2:54:00	9:20	3.11 mi	32:15	10:23	+0:50
35K	3:26:35	9:30	3.11 mi	32:35	10:29	+0:06
40K	3:57:14	9:33	3.10 mi	30:39	9:52	-0:37
Finish(26.22 mi)	4:09:25	9:31	1.37 mi	12:11	8:56	-0:56

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:39 /mi

Average Pace

9:31 /mi

Slowest Pace

10:29 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:04:17

50% of race

Time at Steady Pace

29:39

12% of race

Time at Slower Pace

1:35:29

38% of race

Average Pace: 9:31 /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	21303	6111	1186	29048	9468	1739
10K	3.10 mi	23905-2602	7205-1094	1363-177	26842	8546	1585
15K	3.11 mi	25488-1583	7891-686	1468-105	29048	9468	1739
20K	3.11 mi	26016-528	8123-232	1514-46	27755	8886	1652
Half(13.11 mi)	0.68 mi	26096-80	8164-41	1522-8	28350	9301	1722
25K	2.42 mi	26707-611	8454-290	1574-52	28894	9676	1782
30K	3.11 mi	27754-1047	9050-596	1675-101	31443	11390	2070
35K	3.11 mi	27814-60	9243-193	1714-39	29198	10714	1982
40K	3.10 mi	26584+1230	8909+334	1654+60	21561	7602	1445
Finish(26.22 mi)	1.37 mi	26062+522	8744+165	1624+30	17676	5981	1207

5981

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