Jonathan Blair

Chicago

Bib: 23928 M

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 54109

Gender (Male)

#0 / 29548

Masters (Masters Men)

#0 / 14666

Division (M45-49)

#0 / 3637

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

8:51/mi

27:30

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

8:49/mi

54:54

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

8:12/mi

1:20:22

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

11:07/mi

1:54:53

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

10:36/mi

2:02:07

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

10:17/mi

2:27:04

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

10:08/mi

2:58:34

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

11:03/mi

3:32:55

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

14:43/mi

4:18:39

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

11:45/mi

4:34:40

↑ 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

2:02:079:19 /mi⚡ faster

2nd Half

2:32:3311:38 /mi+24.9%

Positive split — 24.9% slower in the second half

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	27:30	8:51	3.11 mi	27:30	8:51	-
10K	54:54	8:50	3.10 mi	27:24	8:49	-0:02
15K	1:20:22	8:37	3.11 mi	25:28	8:12	-0:37
20K	1:54:53	9:15	3.11 mi	34:31	11:07	+2:55
Half(13.11 mi)	2:02:07	9:19	0.68 mi	7:14	10:36	-0:31
25K	2:27:04	9:28	2.42 mi	24:57	10:17	-0:19
30K	2:58:34	9:35	3.11 mi	31:30	10:08	-0:09
35K	3:32:55	9:47	3.11 mi	34:21	11:03	+0:55
40K	4:18:39	10:24	3.10 mi	45:44	14:43	+3:40
Finish(26.22 mi)	4:34:40	10:29	1.37 mi	16:01	11:45	-2:58

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:12 /mi

Average Pace

10:29 /mi

Slowest Pace

14:43 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:20:22

29% of race

Time at Steady Pace

2:12:33

48% of race

Time at Slower Pace

1:01:45

22% of race

Average Pace: 10:29 /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	M45-49	Seg. Overall	Seg. Males	Seg. M45-49
5K	3.11 mi	23680	16553	2093	18297	13501	1684
10K	3.10 mi	23401+279	16423+130	2071+22	23319	16385	2062
15K	3.11 mi	21538+1863	15337+1086	1922+149	18297	13501	1684
20K	3.11 mi	28710-7172	19347-4010	2408-486	42233	25356	3120
Half(13.11 mi)	0.68 mi	29229-519	19596-249	2440-32	36310	22709	2783
25K	2.42 mi	30091-862	19994-398	2488-48	34224	21678	2665
30K	3.11 mi	29865+226	19767+227	2448+40	29802	19311	2383
35K	3.11 mi	30182-317	19757+10	2447+1	32673	19952	2463
40K	3.10 mi	33291-3109	20972-1215	2594-147	46313	25813	3213
Finish(26.22 mi)	1.37 mi	33549-258	21027-55	2601-7	38871	22157	2710

22157

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