Katarzyna Lazarczuk

Mt Prospect

Bib: 37317 F

Masters

0:00

0:00

/ mi

Masters

Be the first to cheer!

Overall

#0 / 54109

Gender (Female)

#0 / 24561

Masters (Masters Women)

#0 / 9409

Division (F45-49)

#0 / 2581

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

10:36/mi

32:56

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

10:52/mi

1:06:43

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

10:41/mi

1:39:54

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

10:50/mi

2:13:33

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

10:54/mi

2:20:59

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

10:54/mi

2:47:24

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

11:03/mi

3:21:43

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

11:08/mi

3:56:18

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

11:23/mi

4:31:39

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

11:07/mi

4:46:49

↑ 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

2:20:5910:45 /mi⚡ faster

2nd Half

2:25:5011:07 /mi+3.4%

Positive split — 3.4% slower in the second half

AI Race Performance Report

Katarzyna'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	32:56	10:36	3.11 mi	32:56	10:36	-
10K	1:06:43	10:44	3.10 mi	33:47	10:52	+0:16
15K	1:39:54	10:43	3.11 mi	33:11	10:41	-0:11
20K	2:13:33	10:45	3.11 mi	33:39	10:50	+0:09
Half(13.11 mi)	2:20:59	10:45	0.68 mi	7:26	10:54	+0:04
25K	2:47:24	10:47	2.42 mi	26:25	10:54	0:00
30K	3:21:43	10:49	3.11 mi	34:19	11:03	+0:09
35K	3:56:18	10:52	3.11 mi	34:35	11:08	+0:05
40K	4:31:39	10:56	3.10 mi	35:21	11:23	+0:15
Finish(26.22 mi)	4:46:49	10:57	1.37 mi	15:10	11:07	-0:16

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

10:36 /mi

Average Pace

10:57 /mi

Slowest Pace

11:23 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

3:36:53

76% of race

Time at Steady Pace

1:09:56

24% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:56 /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	F45-49	Seg. Overall	Seg. Females	Seg. F45-49
5K	3.11 mi	40705	15773	1674	41852	16492	1693
10K	3.10 mi	40992-287	15955-182	1672+2	41325	16210	1688
15K	3.11 mi	41181-189	16077-122	1665+7	41852	16492	1693
20K	3.11 mi	40927+254	15964+113	1650+15	40542	15845	1619
Half(13.11 mi)	0.68 mi	40716+211	15862+102	1636+14	38243	14711	1493
25K	2.42 mi	40146+570	15601+261	1613+23	38152	14783	1529
30K	3.11 mi	39166+980	15169+432	1559+54	35471	13685	1423
35K	3.11 mi	38060+1106	14712+457	1517+42	33147	12988	1349
40K	3.10 mi	36987+1073	14326+386	1481+36	30739	12347	1267
Finish(26.22 mi)	1.37 mi	36867+120	14325+1	1476+5	34899	14637	1448

14637

Passing Analysis

No position changes recorded for this athlete.

More below

See the rest of Katarzyna'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