Grzegorz Zeleszkiewicz

Chicago

Bib: 10159 M

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 54109

Top 3%

Gender (Male)

#0 / 29548

Top 6%

Masters (Masters Men)

#0 / 14666

Top 2%

Division (M50-54)

#0 / 2876

Top 1%

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

6:32/mi

20:19

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

6:27/mi

40:21

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

6:25/mi

1:00:18

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

6:28/mi

1:20:23

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

6:28/mi

1:24:48

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

6:24/mi

1:40:20

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

6:25/mi

2:00:17

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

6:25/mi

2:20:14

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

6:28/mi

2:40:21

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

6:35/mi

2:49:20

↑ 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

1:24:486:28 /mi⚖️ balanced

2nd Half

1:24:326:27 /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	20:19	6:32	3.11 mi	20:19	6:32	-
10K	40:21	6:30	3.10 mi	20:02	6:27	-0:05
15K	1:00:18	6:28	3.11 mi	19:57	6:25	-0:02
20K	1:20:23	6:28	3.11 mi	20:05	6:28	+0:03
Half(13.11 mi)	1:24:48	6:28	0.68 mi	4:25	6:28	0:00
25K	1:40:20	6:28	2.42 mi	15:32	6:24	-0:04
30K	2:00:17	6:27	3.11 mi	19:57	6:25	+0:01
35K	2:20:14	6:27	3.11 mi	19:57	6:25	0:00
40K	2:40:21	6:27	3.10 mi	20:07	6:28	+0:03
Finish(26.22 mi)	2:49:20	6:28	1.37 mi	8:59	6:35	+0:07

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:24 /mi

Average Pace

6:28 /mi

Slowest Pace

6:35 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:49:20

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:27 /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	3002	2802	75	2626	2464	56
10K	3.10 mi	2667+335	2502+300	62+13	2335	2202	45
15K	3.11 mi	2651+16	2486+16	58+4	2626	2464	56
20K	3.11 mi	2572+79	2415+71	55+3	2461	2320	48
Half(13.11 mi)	0.68 mi	2538+34	2390+25	53+2	2203	2081	36
25K	2.42 mi	2447+91	2305+85	48+5	2097	1978	42
30K	3.11 mi	2272+175	2148+157	44+4	1771	1669	30
35K	3.11 mi	2065+207	1951+197	36+8	1350	1273	22
40K	3.10 mi	1834+231	1729+222	31+5	1136	1059	17
Finish(26.22 mi)	1.37 mi	1826+8	1718+11	32-1	1991	1796	46

1796

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