Katherine Chang

Boston

Bib: 63911 F

0:00

0:00

/ mi

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Overall

#0 / 54109

Gender (Female)

#0 / 24561

Division (F20-24)

#0 / 2002

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

10:37/mi

33:00

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

10:43/mi

1:06:17

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

10:37/mi

1:39:16

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

11:05/mi

2:13:41

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

11:17/mi

2:21:23

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

11:19/mi

2:48:50

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

11:56/mi

3:25:56

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

11:08/mi

4:00:32

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

11:47/mi

4:37:07

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

10:11/mi

4:51:01

↑ 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

2:21:2310:47 /mi⚡ faster

2nd Half

2:29:3811:25 /mi+5.8%

Positive split — 5.8% slower in the second half

AI Race Performance Report

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	33:00	10:37	3.11 mi	33:00	10:37	-
10K	1:06:17	10:40	3.10 mi	33:17	10:43	+0:06
15K	1:39:16	10:39	3.11 mi	32:59	10:37	-0:06
20K	2:13:41	10:45	3.11 mi	34:25	11:05	+0:28
Half(13.11 mi)	2:21:23	10:47	0.68 mi	7:42	11:17	+0:12
25K	2:48:50	10:52	2.42 mi	27:27	11:19	+0:02
30K	3:25:56	11:03	3.11 mi	37:06	11:56	+0:37
35K	4:00:32	11:04	3.11 mi	34:36	11:08	-0:48
40K	4:37:07	11:09	3.10 mi	36:35	11:47	+0:39
Finish(26.22 mi)	4:51:01	11:06	1.37 mi	13:54	10:11	-1:36

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

10:11 /mi

Average Pace

11:06 /mi

Slowest Pace

11:56 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

3:02:11

63% of race

Time at Steady Pace

1:48:50

37% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 11:06 /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	F20-24	Seg. Overall	Seg. Females	Seg. F20-24
5K	3.11 mi	40913	15896	1327	41430	16235	1393
10K	3.10 mi	40496+417	15672+224	1321+6	40260	15571	1315
15K	3.11 mi	40695-199	15778-106	1337-16	41430	16235	1393
20K	3.11 mi	40998-303	16008-230	1360-23	42061	16770	1450
Half(13.11 mi)	0.68 mi	40954+44	16006+2	1358+2	40584	16071	1405
25K	2.42 mi	40829+125	16003+3	1364-6	40475	16142	1377
30K	3.11 mi	40712+117	16098-95	1376-12	40132	16323	1387
35K	3.11 mi	39431+1281	15506+592	1321+55	33180	13010	1092
40K	3.10 mi	38550+881	15178+328	1288+33	33034	13537	1123
Finish(26.22 mi)	1.37 mi	37998+552	14941+237	1278+10	27958	10983	970

10983

Passing Analysis

No position changes recorded for this athlete.

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All Results

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Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

Chicago Event Management

Race timed by

Mika Timing