Jeff Mehalek

Chicago

Bib: 48116 M

Masters

0:00

0:00

/ mi

Masters

Be the first to cheer!

Overall

#0 / 54109

Gender (Male)

#0 / 29548

Masters (Masters Men)

#0 / 14666

Division (M60-64)

#0 / 1216

Top 49%

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

9:18/mi

28:55

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

9:31/mi

58:29

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

9:27/mi

1:27:52

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

9:46/mi

1:58:13

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

10:05/mi

2:05:06

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

9:58/mi

2:29:16

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

10:38/mi

3:02:18

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

11:11/mi

3:37:03

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

11:23/mi

4:12:24

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

11:26/mi

4:27:59

↑ 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

2:05:069:33 /mi⚡ faster

2nd Half

2:22:5310:54 /mi+14.2%

Positive split — 14.2% slower in the second half

AI Race Performance Report

Jeff'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	28:55	9:18	3.11 mi	28:55	9:18	-
10K	58:29	9:25	3.10 mi	29:34	9:31	+0:13
15K	1:27:52	9:26	3.11 mi	29:23	9:27	-0:04
20K	1:58:13	9:31	3.11 mi	30:21	9:46	+0:19
Half(13.11 mi)	2:05:06	9:33	0.68 mi	6:53	10:05	+0:19
25K	2:29:16	9:37	2.42 mi	24:10	9:58	-0:07
30K	3:02:18	9:47	3.11 mi	33:02	10:38	+0:40
35K	3:37:03	9:59	3.11 mi	34:45	11:11	+0:33
40K	4:12:24	10:09	3.10 mi	35:21	11:23	+0:12
Finish(26.22 mi)	4:27:59	10:14	1.37 mi	15:35	11:26	+0:03

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:18 /mi

Average Pace

10:14 /mi

Slowest Pace

11:26 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:27:52

33% of race

Time at Steady Pace

1:01:24

23% of race

Time at Slower Pace

1:58:43

44% of race

Average Pace: 10:13 /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	M60-64	Seg. Overall	Seg. Males	Seg. M60-64
5K	3.11 mi	29122	19505	586	32116	21111	633
10K	3.10 mi	30039-917	19979-474	596-10	31044	20486	614
15K	3.11 mi	30708-669	20347-368	601-5	32116	21111	633
20K	3.11 mi	31198-490	20589-242	618-17	32627	21264	641
Half(13.11 mi)	0.68 mi	31254-56	20606-17	618	32733	21131	637
25K	2.42 mi	31242+12	20549+57	614+4	31887	20637	631
30K	3.11 mi	31415-173	20531+18	611+3	32998	20747	647
35K	3.11 mi	31624-209	20425+106	615-4	33446	20294	636
40K	3.10 mi	31322+302	20046+379	598+17	30724	18389	569
Finish(26.22 mi)	1.37 mi	31577-255	20081-35	595+3	36922	21212	656

21212

Passing Analysis

No position changes recorded for this athlete.

More below

See the rest of Jeff'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