Yatzu Chang

Bib: 21727 F TW

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 29021

Gender (Female)

#0 / 12578

Masters (Masters Women)

#0 / 6862

Division (F45-49)

#0 / 1786

Race Day Weather

51°/41°F

overcast clouds

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

469 ft elev

5K· 3.11 mi

8:56/mi

27:44

↑ 97 ft↓ 345 ft1.5% grade

220 ft elev

10K· 6.21 mi

8:53/mi

55:18

↑ 79 ft↓ 138 ft0.4% grade

157 ft elev

15K· 9.32 mi

8:55/mi

1:22:58

↑ 67 ft↓ 78 ft

146 ft elev

20K· 12.43 mi

9:03/mi

1:51:02

↑ 106 ft↓ 86 ft0.1% grade

165 ft elev

HALF· 13.11 mi

8:50/mi

1:57:03

↑ 19 ft↓ 37 ft0.5% grade

148 ft elev

25K· 15.53 mi

9:11/mi

2:19:17

↑ 66 ft↓ 88 ft0.2% grade

127 ft elev

30K· 18.64 mi

9:31/mi

2:48:48

↑ 181 ft↓ 148 ft0.2% grade

138 ft elev

20M

9:38/mi

3:01:52

↑ 64 ft↓ 50 ft0.2% grade

148 ft elev

21M

10:27/mi

3:12:19

↑ 106 ft↓ 24 ft1.6% grade

227 ft elev

35K· 21.75 mi

9:19/mi

3:19:17

↑ 17 ft↓ 86 ft1.7% grade

156 ft elev

23M

9:21/mi

3:30:59

↑ 23 ft↓ 63 ft0.6% grade

116 ft elev

24M

9:03/mi

3:40:02

↓ 82 ft1.3% grade

34 ft elev

40K· 24.85 mi

9:02/mi

3:47:45

↓ 20 ft0.3% grade

20 ft elev

25.2M

9:40/mi

3:51:05

↑ 13 ft↓ 16 ft0.2% grade

18 ft elev

FINISH· 26.22 mi

8:32/mi

3:59:46

↑ 22 ft↓ 21 ft

17 ft elev

Course Elevation

7–469 ft

≈

×2stacked redwood trees

•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via HALF

1:57:038:56 /mi⚡ faster

2nd Half

2:02:439:22 /mi+4.8%

Positive split — 4.8% slower in the second half

Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	27:44	8:56	3.11 mi	27:44	8:56	-
10K	55:18	8:54	3.10 mi	27:34	8:53	-0:03
15K	1:22:58	8:55	3.11 mi	27:40	8:55	+0:02
20K	1:51:02	8:57	3.11 mi	28:04	9:03	+0:08
HALF(13.11 mi)	1:57:03	8:56	0.68 mi	6:01	8:50	-0:13
25K	2:19:17	8:58	2.42 mi	22:14	9:11	+0:21
30K	2:48:48	9:04	3.11 mi	29:31	9:31	+0:20
20M	3:01:52	9:06	1.36 mi	13:04	9:38	+0:07
21M	3:12:19	9:10	1.00 mi	10:27	10:27	+0:49
35K	3:19:17	9:10	0.75 mi	6:58	9:19	-1:08
23M	3:30:59	9:11	1.25 mi	11:42	9:21	+0:02
24M	3:40:02	9:11	1.00 mi	9:03	9:03	-0:18
40K	3:47:45	9:10	0.85 mi	7:43	9:02	-0:01
25.2M	3:51:05	9:11	0.35 mi	3:20	9:40	+0:38
FINISH(26.22 mi)	3:59:46	9:10	1.02 mi	8:41	8:32	-1:08

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:32 /mi

Average Pace

9:09 /mi

Slowest Pace

10:27 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

8:41

4% of race

Time at Steady Pace

2:36:03

65% of race

Time at Slower Pace

1:15:02

31% of race

Average Pace: 9:09 /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	22293	8829	8829	22246	8751	8751
10K	3.10 mi	22288+5	8805+24	8805+24	22284	8799	8799
15K	3.11 mi	22269+19	8792+13	8792+13	22246	8751	8751
20K	3.11 mi	22193+76	8753+39	8753+39	22073	8698	8698
HALF(13.11 mi)	0.68 mi	22175+18	8745+8	8745+8	21966	8622	8622
25K	2.42 mi	22095+80	8705+40	8705+40	21905	8628	8628
30K	3.11 mi	22013+82	8687+18	8687+18	21650	8598	8598
20M	1.36 mi	21957+56	8675+12	8675+12	21488	8597	8597
21M	1.00 mi	21939+18	8682-7	8682-7	21829	8811	8811
35K	0.75 mi	21925+14	8686-4	8686-4	21225	8557	8557
23M	1.25 mi	21822+103	8651+35	8651+35	20050	8009	8009
24M	1.00 mi	21761+61	8630+21	8630+21	19704	7910	7910
40K	0.85 mi	21652+109	8578+52	8578+52	18562	7357	7357
25.2M	0.35 mi	21608+44	8557+21	8557+21	18168	7146	7146
FINISH(26.22 mi)	1.02 mi	21524+84	8514+43	8514+43	18313	7218	7218

7218

Passing Analysis

Category:

▲Net Change

0 passed by0 passed

Segment	Movement	Rank
Start → 5K	-	#22293
5K → 10K	262267+5	#22293 → #22288
10K → 15K	162181+19	#22288 → #22269
15K → 20K	113189+76	#22269 → #22193
20K → HALF	1836+18	#22193 → #22175
HALF → 25K	82162+80	#22175 → #22095
25K → 30K	121203+82	#22095 → #22013
30K → 20M	47103+56	#22013 → #21957
20M → 21M	7694+18	#21957 → #21939
21M → 35K	4155+14	#21939 → #21925
35K → 23M	28131+103	#21925 → #21822
23M → 24M	1980+61	#21822 → #21761
24M → 40K	12121+109	#21761 → #21652
40K → 25.2M	650+44	#21652 → #21608
25.2M → FINISH	16100+84	#21608 → #21524
TOTALS	10031772+769	#22293 → #21524

Passing Visualized

Category:

Passing Circle

Position Flow

Race Lanes

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Results processed about 1 month ago

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Race managed by

Boston Athletic Association

Race timed by

Mika Timing