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Changhong Zhang

Bib: 24184•F

0:00

0:00

/ mi

Masters

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Overall

#0 / 29021

Gender (Female)

#0 / 12578

Masters (Masters Women)

#0 / 6862

Top 46%

Age Group (F55-59)

#0 / 951

Top 25%

Race Day Weather

51°/41°F

overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start

0:00:00

Race begins

Start

0:00:00

Race begins

26:13

3.11 mi

Rank: #19737

Start → 5K

26:13 | 8:27/mi

26:13

3.11 mi

Rank: #19737

Start → 5K

26:13 | 8:27/mi

10K

52:20

6.21 mi

Rank: #19739 (-2)

5K → 10K

26:07 | 8:25/mi

10K

52:20

6.21 mi

Rank: #19739 (-2)

5K → 10K

26:07 | 8:25/mi

15K

1:18:33

9.32 mi

Rank: #19738 (+1)

10K → 15K

26:13 | 8:27/mi

15K

1:18:33

9.32 mi

Rank: #19738 (+1)

10K → 15K

26:13 | 8:27/mi

20K

1:45:12

12.43 mi

Rank: #19716 (+22)

15K → 20K

26:39 | 8:35/mi

20K

1:45:12

12.43 mi

Rank: #19716 (+22)

15K → 20K

26:39 | 8:35/mi

HALF

1:50:53

13.11 mi

Rank: #19692 (+24)

20K → HALF

5:41 | 8:21/mi

HALF

1:50:53

13.11 mi

Rank: #19692 (+24)

20K → HALF

5:41 | 8:21/mi

25K

2:11:47

15.53 mi

Rank: #19637 (+55)

HALF → 25K

20:54 | 8:38/mi

25K

2:11:47

15.53 mi

Rank: #19637 (+55)

HALF → 25K

20:54 | 8:38/mi

30K

2:39:05

18.64 mi

Rank: #19416 (+221)

25K → 30K

27:18 | 8:48/mi

30K

2:39:05

18.64 mi

Rank: #19416 (+221)

25K → 30K

27:18 | 8:48/mi

20M

2:51:16

20.00 mi

Rank: #19354 (+62)

30K → 20M

12:11 | 8:59/mi

20M

2:51:16

20.00 mi

Rank: #19354 (+62)

30K → 20M

12:11 | 8:59/mi

21M

3:00:59

21.00 mi

Rank: #19349 (+5)

20M → 21M

9:43 | 9:43/mi

21M

3:00:59

21.00 mi

Rank: #19349 (+5)

20M → 21M

9:43 | 9:43/mi

35K

3:07:15

21.75 mi

Rank: #19251 (+98)

21M → 35K

6:16 | 8:23/mi

35K

3:07:15

21.75 mi

Rank: #19251 (+98)

21M → 35K

6:16 | 8:23/mi

23M

3:17:53

23.00 mi

Rank: #19042 (+209)

35K → 23M

10:38 | 8:30/mi

23M

3:17:53

23.00 mi

Rank: #19042 (+209)

35K → 23M

10:38 | 8:30/mi

24M

3:25:54

24.00 mi

Rank: #18825 (+217)

23M → 24M

8:01 | 8:01/mi

24M

3:25:54

24.00 mi

Rank: #18825 (+217)

23M → 24M

8:01 | 8:01/mi

40K

3:33:11

24.85 mi

Rank: #18713 (+112)

24M → 40K

7:17 | 8:32/mi

40K

3:33:11

24.85 mi

Rank: #18713 (+112)

24M → 40K

7:17 | 8:32/mi

25.2M

3:36:21

25.20 mi

Rank: #18675 (+38)

40K → 25.2M

3:10 | 9:11/mi

25.2M

3:36:21

25.20 mi

Rank: #18675 (+38)

40K → 25.2M

3:10 | 9:11/mi

FINISH

3:45:09

26.22 mi

Rank: #18665 (+10)

25.2M → FINISH

8:48 | 8:39/mi

FINISH

3:45:09

26.22 mi

Rank: #18665 (+10)

25.2M → FINISH

8:48 | 8:39/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster

via HALF

Distance13.11 mi

Time1:50:53

Pace8:28 /mi

2nd Half

Spacer

Distance13.11 mi

Time1:54:16

Pace8:43 /mi

📊Positive Split: 3.1% slower second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
5K	3.11 mi	11:30:18	26:13	8:27	26:13	8:27	-
10K	6.21 mi	11:56:25	52:20	8:26	26:07	8:25	-0:02
15K	9.32 mi	12:22:38	1:18:33	8:26	26:13	8:27	+0:02
20K	12.43 mi	12:49:17	1:45:12	8:28	26:39	8:35	+0:08
HALF	13.11 mi	12:54:58	1:50:53	8:28	5:41	8:21	-0:14
25K	15.53 mi	13:15:52	2:11:47	8:30	20:54	8:38	+0:17
30K	18.64 mi	13:43:10	2:39:05	8:33	27:18	8:48	+0:10
20M	20.00 mi	13:55:21	2:51:16	8:34	12:11	8:59	+0:11
21M	21.00 mi	14:05:04	3:00:59	8:38	9:43	9:43	+0:44
35K	21.75 mi	14:11:20	3:07:15	8:37	6:16	8:23	-1:20
23M	23.00 mi	14:21:58	3:17:53	8:37	10:38	8:30	+0:07
24M	24.00 mi	14:29:59	3:25:54	8:35	8:01	8:01	-0:29
40K	24.85 mi	14:37:16	3:33:11	8:35	7:17	8:32	+0:31
25.2M	25.20 mi	14:40:26	3:36:21	8:36	3:10	9:11	+0:39
FINISH	26.22 mi	14:49:14	3:45:09	8:36	8:48	8:39	-0:32

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:01 /mi

Average Pace

8:36 /mi

Slowest Pace

9:43 /mi

Loading chart...

Fastest

Middle

Slowest

Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

8:01

4% of race

Time at Steady Pace

2:44:46

73% of race

Time at Slower Pace

52:22

23% of race

Average Pace: 8:35 /mi

Loading chart...

Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

0mi6.6mi13.1mi19.7mi26.2mi

Pace:

Faster

Steady

Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment	Pace	Rank
5K	3.11 mi	11:30:18	26:13	8:27	26:13	8:27	#19737
10K	6.21 mi	11:56:25	52:20	8:26	26:07	8:25	#19739
15K	9.32 mi	12:22:38	1:18:33	8:26	26:13	8:27	#19738
20K	12.43 mi	12:49:17	1:45:12	8:28	26:39	8:35	#19716
HALF	13.11 mi	12:54:58	1:50:53	8:28	5:41	8:21	#19692
25K	15.53 mi	13:15:52	2:11:47	8:30	20:54	8:38	#19637
30K	18.64 mi	13:43:10	2:39:05	8:33	27:18	8:48	#19416
20M	20.00 mi	13:55:21	2:51:16	8:34	12:11	8:59	#19354
21M	21.00 mi	14:05:04	3:00:59	8:38	9:43	9:43	#19349
35K	21.75 mi	14:11:20	3:07:15	8:37	6:16	8:23	#19251
23M	23.00 mi	14:21:58	3:17:53	8:37	10:38	8:30	#19042
24M	24.00 mi	14:29:59	3:25:54	8:35	8:01	8:01	#18825
40K	24.85 mi	14:37:16	3:33:11	8:35	7:17	8:32	#18713
25.2M	25.20 mi	14:40:26	3:36:21	8:36	3:10	9:11	#18675
FINISH	26.22 mi	14:49:14	3:45:09	8:36	8:48	8:39	#18665

Faster pace

Steady pace

Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

Checkpoint	Distance	Seg. Dist	Overall	Females	F55-59	Seg. Overall	Seg. Females	Seg. F55-59
5K	3.11 mi	3.11 mi	19737	7491	7491	19775(Top 68%)	7458(Top 59%)	7458(Top 784%)
10K	6.21 mi	3.10 mi	19739-2	7476+15	7476+15	19818(Top 68%)	7491(Top 60%)	7491(Top 788%)
15K	9.32 mi	3.11 mi	19738+1	7470+6	7470+6	19775(Top 68%)	7458(Top 59%)	7458(Top 784%)
20K	12.43 mi	3.11 mi	19716+22	7463+7	7463+7	19752(Top 68%)	7489(Top 60%)	7489(Top 787%)
HALF	13.11 mi	0.68 mi	19692+24	7451+12	7451+12	19299(Top 67%)	7203(Top 57%)	7203(Top 757%)
25K	15.53 mi	2.42 mi	19637+55	7429+22	7429+22	19290(Top 66%)	7288(Top 58%)	7288(Top 766%)
30K	18.64 mi	3.11 mi	19416+221	7334+95	7334+95	18508(Top 64%)	6948(Top 55%)	6948(Top 731%)
20M	20.00 mi	1.36 mi	19354+62	7319+15	7319+15	18817(Top 65%)	7196(Top 57%)	7196(Top 757%)
21M	21.00 mi	1.00 mi	19349+5	7329-10	7329-10	19448(Top 67%)	7557(Top 60%)	7557(Top 795%)
35K	21.75 mi	0.75 mi	19251+98	7284+45	7284+45	16966(Top 58%)	6320(Top 50%)	6320(Top 665%)
23M	23.00 mi	1.25 mi	19042+209	7186+98	7186+98	15740(Top 54%)	5702(Top 45%)	5702(Top 600%)
24M	24.00 mi	1.00 mi	18825+217	7091+95	7091+95	13950(Top 48%)	4779(Top 38%)	4779(Top 503%)
40K	24.85 mi	0.85 mi	18713+112	7047+44	7047+44	15853(Top 55%)	5895(Top 47%)	5895(Top 620%)
25.2M	25.20 mi	0.35 mi	18675+38	7032+15	7032+15	15810(Top 54%)	5883(Top 47%)	5883(Top 619%)
FINISH	26.22 mi	1.02 mi	18665+10	7042-10	7042-10	18852(Top 65%)	7484(Top 60%)	7484(Top 787%)

7484

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Position interactions are being recalculated

Started about 7 hours ago. This usually takes 10-20 minutes. Please check back shortly.

Activity Data

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Results processed 3 months ago

Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

Boston Athletic Association

Race timed by

Mika Timing

Changhong Zhang

Race Timeline and Course Information

⏱️ Race Timeline

Race Animation with Course Map

Splits & Pacing

Half Splits

Checkpoint Splits

Checkpoint Splits Visualizations

📈Pace Line

Pace Progression

📊Segments

Segment Time Comparison

🎨Heatmap

Pace Heatmap

✨Sparklines

Checkpoint Splits with Pace Trends

Rankings

Checkpoint and Segment Rankings

Segment Performance Analysis

10K→15K

5K→10K

10K→15K

15K→20K

20K→HALF

HALF→25K

25K→30K

30K→20M

20M→21M

21M→35K

35K→23M

23M→24M

24M→40K

40K→25.2M

25.2M→FINISH

Passing

Passing Analysis

Activity Data

Export & Support

Export Track Data

Questions or issues regarding timing data?

Quick Links

All Results

Race Analytics

Course Information

Contact Time Management

Public Race Data