Zhe Chang

Bib: 27321 F CN

0:00

0:00

/ mi

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Overall

#0 / 25550

Gender (Female)

#0 / 10924

Division (F18-39)

#0 / 4660

Race Day Weather

55°/45°F

scattered clouds

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

469 ft elev

5K· 3.11 mi

10:19/mi

32:04

↑ 97 ft↓ 345 ft1.5% grade

220 ft elev

10K· 6.21 mi

11:33/mi

1:07:56

↑ 79 ft↓ 138 ft0.4% grade

157 ft elev

15K· 9.32 mi

12:43/mi

1:47:28

↑ 67 ft↓ 78 ft

146 ft elev

20K· 12.43 mi

13:28/mi

2:29:18

↑ 106 ft↓ 86 ft0.1% grade

165 ft elev

Half· 13.11 mi

12:30/mi

2:37:50

↑ 19 ft↓ 37 ft0.5% grade

148 ft elev

25K· 15.53 mi

13:33/mi

3:10:40

↑ 66 ft↓ 88 ft0.2% grade

127 ft elev

30K· 18.64 mi

15:14/mi

3:57:59

↑ 181 ft↓ 148 ft0.2% grade

138 ft elev

20M

13:55/mi

4:16:54

↑ 64 ft↓ 50 ft0.2% grade

148 ft elev

21M

15:38/mi

4:32:32

↑ 106 ft↓ 24 ft1.6% grade

227 ft elev

35K· 21.75 mi

14:48/mi

4:43:36

↑ 17 ft↓ 86 ft1.7% grade

156 ft elev

23M

14:00/mi

5:01:08

↑ 23 ft↓ 63 ft0.6% grade

116 ft elev

24M

12:06/mi

5:13:14

↓ 82 ft1.3% grade

34 ft elev

40K· 24.85 mi

14:24/mi

5:25:33

↓ 20 ft0.3% grade

20 ft elev

25.2M

14:13/mi

5:30:27

↑ 13 ft↓ 16 ft0.2% grade

18 ft elev

Finish· 26.22 mi

11:32/mi

5:42:12

↑ 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

2:37:5012:02 /mi⚡ faster

2nd Half

3:04:2214:04 /mi+16.8%

Positive split — 16.8% slower in the second half

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See your splits, ranks & AI insights.

Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	32:04	10:19	3.11 mi	32:04	10:19	-
10K	1:07:56	10:56	3.10 mi	35:52	11:33	+1:14
15K	1:47:28	11:32	3.11 mi	39:32	12:43	+1:10
20K	2:29:18	12:01	3.11 mi	41:50	13:28	+0:45
Half(13.11 mi)	2:37:50	12:02	0.68 mi	8:32	12:30	-0:58
25K	3:10:40	12:16	2.42 mi	32:50	13:33	+1:03
30K	3:57:59	12:46	3.11 mi	47:19	15:14	+1:41
20M	4:16:54	12:51	1.36 mi	18:55	13:55	-1:19
21M	4:32:32	12:59	1.00 mi	15:38	15:38	+1:43
35K	4:43:36	13:02	0.75 mi	11:04	14:48	-0:50
23M	5:01:08	13:06	1.25 mi	17:32	14:00	-0:48
24M	5:13:14	13:03	1.00 mi	12:06	12:06	-1:54
40K	5:25:33	13:06	0.85 mi	12:19	14:24	+2:18
25.2M	5:30:27	13:07	0.35 mi	4:54	14:13	-0:11
Finish(26.22 mi)	5:42:12	13:04	1.02 mi	11:45	11:32	-2:41

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

10:19 /mi

Average Pace

13:04 /mi

Slowest Pace

15:38 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:19:51

41% of race

Time at Steady Pace

1:56:01

34% of race

Time at Slower Pace

1:26:20

25% of race

Average Pace: 13:03 /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	F18-39	Seg. Overall	Seg. Females	Seg. F18-39
5K	3.11 mi	23707	9787	9787	25176	10675	10675
10K	3.10 mi	24464-757	10234-447	10234-447	24806	10456	10456
15K	3.11 mi	24849-385	10473-239	10473-239	25176	10675	10675
20K	3.11 mi	24975-126	10551-78	10551-78	25136	10674	10674
Half(13.11 mi)	0.68 mi	24987-12	10560-9	10560-9	24915	10574	10574
25K	2.42 mi	24955+32	10556+4	10556+4	24633	10428	10428
30K	3.11 mi	25020-65	10615-59	10615-59	25072	10728	10728
20M	1.36 mi	24971+49	10588+27	10588+27	23895	10177	10177
21M	1.00 mi	24963+8	10583+5	10583+5	24207	10371	10371
35K	0.75 mi	24977-14	10596-13	10596-13	24786	10653	10653
23M	1.25 mi	24949+28	10588+8	10588+8	23777	10198	10198
24M	1.00 mi	24875+74	10553+35	10553+35	21653	9266	9266
40K	0.85 mi	24868+7	10559-6	10559-6	24060	10406	10406
25.2M	0.35 mi	24850+18	10554+5	10554+5	21957	9460	9460
Finish(26.22 mi)	1.02 mi	24807+43	10538+16	10538+16	22493	9693	9693

9693

Passing Analysis

Category:

Athletes Passed

479

Passed By

1579

Net Change

-1100

Segment	Athletes Passed	Passed By	Net Change	Start Rank	End Rank
Start → 5K	-	-	-	-	#23707
5K → 10K	24	781	-757	#23707	#24464
10K → 15K	13	398	-385	#24464	#24849
15K → 20K	30	156	-126	#24849	#24975
20K → Half	9	21	-12	#24975	#24987
Half → 25K	65	33	+32	#24987	#24955
25K → 30K	38	103	-65	#24955	#25020
30K → 20M	57	8	+49	#25020	#24971
20M → 21M	26	18	+8	#24971	#24963
21M → 35K	18	32	-14	#24963	#24977
35K → 23M	37	9	+28	#24977	#24949
23M → 24M	74	0	+74	#24949	#24875
24M → 40K	21	14	+7	#24875	#24868
40K → 25.2M	20	2	+18	#24868	#24850
25.2M → Finish	47	4	+43	#24850	#24807
TOTALS	479	1579	-1100

Passing Charts

Category:

Passing Circle

Position Flow

Race Lanes

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Results processed about 1 month ago

Public Race Data

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Race managed by

Boston Athletic Association

Race timed by

Mika Timing