Jonathan Lauff

Naperville

Bib: 38400 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 (M50-54)

#0 / 2876

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

10:04/mi

31:17

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

9:47/mi

1:01:42

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

9:38/mi

1:31:37

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

9:34/mi

2:01:21

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

9:49/mi

2:08:03

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

9:44/mi

2:31:39

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

9:43/mi

3:01:50

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

9:42/mi

3:31:58

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

9:51/mi

4:02:33

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

9:43/mi

4:15:48

↑ 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

2:08:039:46 /mi⚖️ balanced

2nd Half

2:07:459:45 /mi⚖️ balanced

Even split — consistent pacing between halves

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	31:17	10:04	3.11 mi	31:17	10:04	-
10K	1:01:42	9:56	3.10 mi	30:25	9:47	-0:17
15K	1:31:37	9:50	3.11 mi	29:55	9:38	-0:09
20K	2:01:21	9:46	3.11 mi	29:44	9:34	-0:04
Half(13.11 mi)	2:08:03	9:46	0.68 mi	6:42	9:49	+0:15
25K	2:31:39	9:46	2.42 mi	23:36	9:44	-0:05
30K	3:01:50	9:45	3.11 mi	30:11	9:43	-0:01
35K	3:31:58	9:45	3.11 mi	30:08	9:42	-0:01
40K	4:02:33	9:46	3.10 mi	30:35	9:51	+0:09
Finish(26.22 mi)	4:15:48	9:46	1.37 mi	13:15	9:43	-0:08

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:34 /mi

Average Pace

9:46 /mi

Slowest Pace

10:04 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

3:44:31

88% of race

Time at Steady Pace

31:17

12% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:45 /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	M50-54	Seg. Overall	Seg. Males	Seg. M50-54
5K	3.11 mi	36091	22931	2165	33589	21788	2008
10K	3.10 mi	34542+1549	22204+727	2073+92	33310	21587	1994
15K	3.11 mi	34202+340	22068+136	2057+16	33589	21788	2008
20K	3.11 mi	33278+924	21625+443	1997+60	31070	20527	1874
Half(13.11 mi)	0.68 mi	33081+197	21512+113	1982+15	30715	20169	1845
25K	2.42 mi	32457+624	21160+352	1943+39	30143	19826	1811
30K	3.11 mi	31225+1232	20442+718	1871+72	26945	17869	1610
35K	3.11 mi	29814+1411	19559+883	1775+96	24134	15960	1437
40K	3.10 mi	28221+1593	18538+1021	1683+92	21436	13905	1245
Finish(26.22 mi)	1.37 mi	27921+300	18297+241	1659+24	24157	15101	1321

15101

Passing Analysis

No position changes recorded for this athlete.

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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