Karla Serrano

Mexico city

Bib: 19464 F

0:00

0:00

/ mi

Be the first to cheer!

Overall

#0 / 54109

Top 48%

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

8:41/mi

26:59

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

8:58/mi

54:52

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

10:04/mi

1:26:07

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

9:09/mi

1:54:33

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

9:02/mi

2:00:43

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

9:29/mi

2:23:42

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

9:55/mi

2:54:32

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

9:25/mi

3:23:46

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

10:22/mi

3:55:59

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

9:04/mi

4:08:21

↑ 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

2:00:439:12 /mi⚡ faster

2nd Half

2:07:389:44 /mi+5.7%

Positive split — 5.7% slower in the second half

AI Race Performance Report

Karla'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	26:59	8:41	3.11 mi	26:59	8:41	-
10K	54:52	8:50	3.10 mi	27:53	8:58	+0:17
15K	1:26:07	9:14	3.11 mi	31:15	10:04	+1:06
20K	1:54:33	9:13	3.11 mi	28:26	9:09	-0:55
Half(13.11 mi)	2:00:43	9:12	0.68 mi	6:10	9:02	-0:07
25K	2:23:42	9:15	2.42 mi	22:59	9:29	+0:27
30K	2:54:32	9:22	3.11 mi	30:50	9:55	+0:26
35K	3:23:46	9:22	3.11 mi	29:14	9:25	-0:30
40K	3:55:59	9:30	3.10 mi	32:13	10:22	+0:57
Finish(26.22 mi)	4:08:21	9:29	1.37 mi	12:22	9:04	-1:18

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:41 /mi

Average Pace

9:29 /mi

Slowest Pace

10:22 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:34:03

62% of race

Time at Steady Pace

1:02:05

25% of race

Time at Slower Pace

32:13

13% of race

Average Pace: 9:28 /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	21795	6333	1409	37217	13735	3122
10K	3.10 mi	23357-1562	6961-628	1550-141	25106	7748	1743
15K	3.11 mi	28877-5520	9450-2489	2141-591	37217	13735	3122
20K	3.11 mi	28437+440	9236+214	2095+46	27260	8641	1985
Half(13.11 mi)	0.68 mi	28153+284	9100+136	2062+33	23978	7311	1722
25K	2.42 mi	28100+53	9113-13	2073-11	28311	9380	2162
30K	3.11 mi	28009+91	9167-54	2090-17	28354	9746	2258
35K	3.11 mi	26798+1211	8783+384	2014+76	22098	7236	1727
40K	3.10 mi	26225+573	8742+41	2019-5	24730	9106	2144
Finish(26.22 mi)	1.37 mi	25712+513	8577+165	1996+23	18869	6547	1624

6547

Passing Analysis

No position changes recorded for this athlete.

More below

See the rest of Karla'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