Mayumi Iwao

Hiratsuka

Bib: 67279 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

13:59/mi

43:27

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

14:32/mi

1:28:37

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

14:28/mi

2:13:35

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

15:31/mi

3:01:46

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

15:50/mi

3:12:34

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

16:08/mi

3:51:42

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

16:42/mi

4:43:34

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

16:42/mi

5:35:26

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

16:42/mi

6:27:18

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

15:04/mi

6:47:51

↑ 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

3:12:3414:41 /mi⚡ faster

2nd Half

3:35:1716:25 /mi+11.8%

Positive split — 11.8% slower in the second half

AI Race Performance Report

Mayumi'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	43:27	13:59	3.11 mi	43:27	13:59	-
10K	1:28:37	14:16	3.10 mi	45:10	14:32	+0:33
15K	2:13:35	14:20	3.11 mi	44:58	14:28	-0:04
20K	3:01:46	14:38	3.11 mi	48:11	15:31	+1:03
Half(13.11 mi)	3:12:34	14:41	0.68 mi	10:48	15:50	+0:19
25K	3:51:42	14:55	2.42 mi	39:08	16:08	+0:18
30K	4:43:34	15:13	3.11 mi	51:52	16:42	+0:34
35K	5:35:26	15:25	3.11 mi	51:52	16:42	0:00
40K	6:27:18	15:35	3.10 mi	51:52	16:42	0:00
Finish(26.22 mi)	6:47:51	15:34	1.37 mi	20:33	15:04	-1:38

Trend:

Faster pace

Steady pace

Slower pace

Est.Checkpoint not recorded (estimated)

~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

13:59 /mi

Average Pace

15:34 /mi

Slowest Pace

16:42 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:34:08

38% of race

Time at Steady Pace

1:38:07

24% of race

Time at Slower Pace

2:35:36

38% of race

Average Pace: 15:33 /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	53458	24081	2516	53144	23846	2473
10K	3.10 mi	53206+252	23880+201	2481+35	52809	23573	2446
15K	3.11 mi	53242-36	23896-16	2489-8	53144	23846	2473
20K	3.11 mi	53252-10	23910-14	2488+1	53103	23828	2480
Half(13.11 mi)	0.68 mi	53245+7	23906+4	2484+4	52353	23393	2431
25K	2.42 mi	53222+23	23889+17	2488-4	52730	23661	2466
30K	3.11 mi	53215+7	23895-6	2486+2	52595	23633	2465
35K	3.11 mi	53206+9	23898-3	2484+2	52270	23492	2453
40K	3.10 mi	53152+54	23871+27	2481+3	51411	23142	2405
Finish(26.22 mi)	1.37 mi	53099+53	23843+28	2477+4	50928	22907	2366

22907

Passing Analysis

No position changes recorded for this athlete.

More below

See the rest of Mayumi'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