Mary Mason

Bow

Bib: 57150 F

0:00

0:00

/ mi

Be the first to cheer!

Overall

#0 / 54109

Gender (Female)

#0 / 24561

Division (F35-39)

#0 / 3504

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

12:02/mi

37:22

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

12:52/mi

1:17:20

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

13:09/mi

1:58:12

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

13:48/mi

2:41:03

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

14:29/mi

2:50:56

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

14:06/mi

3:25:06

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

15:02/mi

4:11:49

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

14:56/mi

4:58:12

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

14:18/mi

5:42:37

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

13:49/mi

6:01:27

↑ 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

2:50:5613:02 /mi⚡ faster

2nd Half

3:10:3114:32 /mi+11.5%

Positive split — 11.5% slower in the second half

AI Race Performance Report

Mary'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	37:22	12:02	3.11 mi	37:22	12:02	-
10K	1:17:20	12:27	3.10 mi	39:58	12:52	+0:50
15K	1:58:12	12:41	3.11 mi	40:52	13:09	+0:17
20K	2:41:03	12:58	3.11 mi	42:51	13:48	+0:39
Half(13.11 mi)	2:50:56	13:02	0.68 mi	9:53	14:29	+0:41
25K	3:25:06	13:12	2.42 mi	34:10	14:06	-0:23
30K	4:11:49	13:31	3.11 mi	46:43	15:02	+0:56
35K	4:58:12	13:43	3.11 mi	46:23	14:56	-0:06
40K	5:42:37	13:47	3.10 mi	44:25	14:18	-0:38
Finish(26.22 mi)	6:01:27	13:48	1.37 mi	18:50	13:49	-0:29

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

12:02 /mi

Average Pace

13:48 /mi

Slowest Pace

15:02 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:58:12

33% of race

Time at Steady Pace

2:30:09

42% of race

Time at Slower Pace

1:33:06

26% of race

Average Pace: 13:47 /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	F35-39	Seg. Overall	Seg. Females	Seg. F35-39
5K	3.11 mi	49771	21521	3029	51384	22643	3214
10K	3.10 mi	49910-139	21596-75	3039-10	49906	21581	3027
15K	3.11 mi	50542-632	22019-423	3097-58	51384	22643	3214
20K	3.11 mi	50757-215	22199-180	3140-43	51027	22429	3192
Half(13.11 mi)	0.68 mi	50795-38	22229-30	3140	50628	22263	3178
25K	2.42 mi	50667+128	22156+73	3134+6	49702	21756	3100
30K	3.11 mi	50657+10	22184-28	3137-3	50083	22138	3167
35K	3.11 mi	50466+191	22117+67	3137	48719	21547	3063
40K	3.10 mi	50010+456	21873+244	3097+40	44711	19635	2821
Finish(26.22 mi)	1.37 mi	49983+27	21868+5	3099-2	47973	21412	3045

21412

Passing Analysis

No position changes recorded for this athlete.

More below

See the rest of Mary'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