Alec Rivera

Chicago

Bib: 21316 M

Masters

0:00

0:00

/ mi

Masters

Be the first to cheer!

Overall

#0 / 54109

Gender (Male)

#0 / 29548

Masters (Masters Men)

#0 / 14666

Division (M40-44)

#0 / 4329

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

6:47/mi

21:05

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

7:21/mi

43:54

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

7:42/mi

1:07:49

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

8:12/mi

1:33:19

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

8:40/mi

1:39:14

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

9:27/mi

2:02:09

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

13:19/mi

2:43:30

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

12:04/mi

3:20:58

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

13:07/mi

4:01:43

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

11:27/mi

4:17:20

↑ 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

1:39:147:34 /mi⚡ faster

2nd Half

2:38:0612:04 /mi+59.3%

Positive split — 59.3% slower in the second half

AI Race Performance Report

Alec'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	21:05	6:47	3.11 mi	21:05	6:47	-
10K	43:54	7:04	3.10 mi	22:49	7:21	+0:34
15K	1:07:49	7:17	3.11 mi	23:55	7:42	+0:21
20K	1:33:19	7:31	3.11 mi	25:30	8:12	+0:30
Half(13.11 mi)	1:39:14	7:34	0.68 mi	5:55	8:40	+0:28
25K	2:02:09	7:52	2.42 mi	22:55	9:27	+0:47
30K	2:43:30	8:46	3.11 mi	41:21	13:19	+3:52
35K	3:20:58	9:14	3.11 mi	37:28	12:04	-1:15
40K	4:01:43	9:44	3.10 mi	40:45	13:07	+1:03
Finish(26.22 mi)	4:17:20	9:49	1.37 mi	15:37	11:27	-1:40

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:47 /mi

Average Pace

9:49 /mi

Slowest Pace

13:19 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

1:33:19

36% of race

Time at Steady Pace

28:50

11% of race

Time at Slower Pace

2:15:11

53% of race

Average Pace: 9:49 /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	M40-44	Seg. Overall	Seg. Males	Seg. M40-44
5K	3.11 mi	4860	4382	694	12922	10097	1616
10K	3.10 mi	6808-1948	5934-1552	1006-312	8541	7195	1203
15K	3.11 mi	8377-1569	7083-1149	1183-177	12922	10097	1616
20K	3.11 mi	10255-1878	8349-1266	1360-177	16960	12695	1978
Half(13.11 mi)	0.68 mi	10765-510	8673-324	1402-42	19943	14415	2235
25K	2.42 mi	13387-2622	10348-1675	1639-237	28123	18834	2877
30K	3.11 mi	21734-8347	15379-5031	2388-749	45361	25984	3860
35K	3.11 mi	25654-3920	17396-2017	2674-286	38090	22442	3381
40K	3.10 mi	27970-2316	18416-1020	2826-152	39720	22693	3390
Finish(26.22 mi)	1.37 mi	28391-421	18545-129	2846-20	37095	21293	3169

21293

Passing Analysis

No position changes recorded for this athlete.

More below

See the rest of Alec'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