Leah McCarthy

Acton

Bib: 67321 F

0:00

0:00

/ mi

Be the first to cheer!

Overall

#0 / 54109

Top 47%

Gender (Female)

#0 / 24561

Top 35%

Division (F25-29)

#0 / 5362

Top 37%

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

10:10/mi

31:36

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

9:30/mi

1:01:06

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

9:06/mi

1:29:23

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

9:21/mi

1:58:27

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

9:30/mi

2:04:56

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

9:14/mi

2:27:19

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

9:21/mi

2:56:22

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

9:23/mi

3:25:32

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

9:31/mi

3:55:07

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

9:19/mi

4:07:49

↑ 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

2:04:569:32 /mi+1.6%

2nd Half

2:02:539:22 /mi✓ faster

Negative split — 1.6% faster in the second half

AI Race Performance Report

Leah'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	31:36	10:10	3.11 mi	31:36	10:10	-
10K	1:01:06	9:50	3.10 mi	29:30	9:30	-0:40
15K	1:29:23	9:35	3.11 mi	28:17	9:06	-0:24
20K	1:58:27	9:32	3.11 mi	29:04	9:21	+0:15
Half(13.11 mi)	2:04:56	9:32	0.68 mi	6:29	9:30	+0:09
25K	2:27:19	9:29	2.42 mi	22:23	9:14	-0:16
30K	2:56:22	9:28	3.11 mi	29:03	9:21	+0:07
35K	3:25:32	9:27	3.11 mi	29:10	9:23	+0:02
40K	3:55:07	9:28	3.10 mi	29:35	9:31	+0:08
Finish(26.22 mi)	4:07:49	9:28	1.37 mi	12:42	9:19	-0:12

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:06 /mi

Average Pace

9:28 /mi

Slowest Pace

10:10 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

3:36:13

87% of race

Time at Steady Pace

31:36

13% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:27 /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	Females	F25-29	Seg. Overall	Seg. Females	Seg. F25-29
5K	3.11 mi	36967	13618	3040	28842	9375	2153
10K	3.10 mi	33808+3159	11939+1679	2671+369	30845	10440	2363
15K	3.11 mi	32152+1656	11064+875	2489+182	28842	9375	2153
20K	3.11 mi	31382+770	10693+371	2429+60	29293	9632	2226
Half(13.11 mi)	0.68 mi	31154+228	10598+95	2408+21	28342	9293	2180
25K	2.42 mi	30230+924	10172+426	2331+77	26398	8493	1980
30K	3.11 mi	28868+1362	9590+582	2202+129	24330	7849	1855
35K	3.11 mi	27462+1406	9088+502	2076+126	21931	7157	1711
40K	3.10 mi	25937+1525	8607+481	1992+84	19308	6507	1545
Finish(26.22 mi)	1.37 mi	25567+370	8522+85	1983+9	20923	7512	1849

7512

Passing Analysis

No position changes recorded for this athlete.

More below

See the rest of Leah'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