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Wei-Chi Chang

Bib: 20956•F

0:00

0:00

/ mi

Masters

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Overall

#0 / 29021

Gender (Female)

#0 / 12578

Masters (Masters Women)

#0 / 6862

Top 44%

Age Group (F45-49)

#0 / 1786

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

25:03

3.11 mi

Rank: #17387

Start → 5K

25:03 | 8:04/mi

25:03

3.11 mi

Rank: #17387

Start → 5K

25:03 | 8:04/mi

10K

50:39

6.21 mi

Rank: #18116 (-729)

5K → 10K

25:36 | 8:15/mi

10K

50:39

6.21 mi

Rank: #18116 (-729)

5K → 10K

25:36 | 8:15/mi

15K

1:16:43

9.32 mi

Rank: #18586 (-470)

10K → 15K

26:04 | 8:24/mi

15K

1:16:43

9.32 mi

Rank: #18586 (-470)

10K → 15K

26:04 | 8:24/mi

20K

1:43:11

12.43 mi

Rank: #18783 (-197)

15K → 20K

26:28 | 8:32/mi

20K

1:43:11

12.43 mi

Rank: #18783 (-197)

15K → 20K

26:28 | 8:32/mi

HALF

1:48:59

13.11 mi

Rank: #18864 (-81)

20K → HALF

5:48 | 8:31/mi

HALF

1:48:59

13.11 mi

Rank: #18864 (-81)

20K → HALF

5:48 | 8:31/mi

25K

2:09:47

15.53 mi

Rank: #18875 (-11)

HALF → 25K

20:48 | 8:35/mi

25K

2:09:47

15.53 mi

Rank: #18875 (-11)

HALF → 25K

20:48 | 8:35/mi

30K

2:37:14

18.64 mi

Rank: #18809 (+66)

25K → 30K

27:27 | 8:51/mi

30K

2:37:14

18.64 mi

Rank: #18809 (+66)

25K → 30K

27:27 | 8:51/mi

20M

2:49:04

20.00 mi

Rank: #18695 (+114)

30K → 20M

11:50 | 8:43/mi

20M

2:49:04

20.00 mi

Rank: #18695 (+114)

30K → 20M

11:50 | 8:43/mi

21M

2:58:17

21.00 mi

Rank: #18587 (+108)

20M → 21M

9:13 | 9:13/mi

21M

2:58:17

21.00 mi

Rank: #18587 (+108)

20M → 21M

9:13 | 9:13/mi

35K

3:04:38

21.75 mi

Rank: #18553 (+34)

21M → 35K

6:21 | 8:30/mi

35K

3:04:38

21.75 mi

Rank: #18553 (+34)

21M → 35K

6:21 | 8:30/mi

23M

3:15:38

23.00 mi

Rank: #18483

35K → 23M

11:00 | 8:48/mi

23M

3:15:38

23.00 mi

Rank: #18483

35K → 23M

11:00 | 8:48/mi

24M

3:24:23

24.00 mi

Rank: #18475

23M → 24M

8:45 | 8:45/mi

24M

3:24:23

24.00 mi

Rank: #18475

23M → 24M

8:45 | 8:45/mi

40K

3:31:53

24.85 mi

Rank: #18413

24M → 40K

7:30 | 8:47/mi

40K

3:31:53

24.85 mi

Rank: #18413

24M → 40K

7:30 | 8:47/mi

25.2M

3:35:07

25.20 mi

Rank: #18375

40K → 25.2M

3:14 | 9:23/mi

25.2M

3:35:07

25.20 mi

Rank: #18375

40K → 25.2M

3:14 | 9:23/mi

FINISH

3:43:52

26.22 mi

Rank: #18379

25.2M → FINISH

8:45 | 8:36/mi

FINISH

3:43:52

26.22 mi

Rank: #18379

25.2M → FINISH

8:45 | 8:36/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster

via HALF

Distance13.11 mi

Time1:48:59

Pace8:19 /mi

2nd Half

Spacer

Distance13.11 mi

Time1:54:53

Pace8:46 /mi

📊Positive Split: 5.4% slower second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
5K	3.11 mi	11:10:34	25:03	8:04	25:03	8:04	-
10K	6.21 mi	11:36:10	50:39	8:10	25:36	8:15	+0:11
15K	9.32 mi	12:02:14	1:16:43	8:14	26:04	8:24	+0:09
20K	12.43 mi	12:28:42	1:43:11	8:19	26:28	8:32	+0:08
HALF	13.11 mi	12:34:30	1:48:59	8:19	5:48	8:31	-0:01
25K	15.53 mi	12:55:18	2:09:47	8:22	20:48	8:35	+0:04
30K	18.64 mi	13:22:45	2:37:14	8:27	27:27	8:51	+0:16
20M	20.00 mi	13:34:35	2:49:04	8:28	11:50	8:43	-0:08
21M	21.00 mi	13:43:48	2:58:17	8:30	9:13	9:13	+0:30
35K	21.75 mi	13:50:09	3:04:38	8:30	6:21	8:30	-0:43
23M	23.00 mi	14:01:09	3:15:38	8:31	11:00	8:48	+0:18
24M	24.00 mi	14:09:54	3:24:23	8:31	8:45	8:45	-0:03
40K	24.85 mi	14:17:24	3:31:53	8:32	7:30	8:47	+0:02
25.2M	25.20 mi	14:20:38	3:35:07	8:33	3:14	9:23	+0:36
FINISH	26.22 mi	14:29:23	3:43:52	8:33	8:45	8:36	-0:47

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

8:04 /mi

Average Pace

8:33 /mi

Slowest Pace

9:23 /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

3:31:25

94% of race

Time at Steady Pace

12:27

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:32 /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	11:10:34	25:03	8:04	25:03	8:04	#17387
10K	6.21 mi	11:36:10	50:39	8:10	25:36	8:15	#18116
15K	9.32 mi	12:02:14	1:16:43	8:14	26:04	8:24	#18586
20K	12.43 mi	12:28:42	1:43:11	8:19	26:28	8:32	#18783
HALF	13.11 mi	12:34:30	1:48:59	8:19	5:48	8:31	#18864
25K	15.53 mi	12:55:18	2:09:47	8:22	20:48	8:35	#18875
30K	18.64 mi	13:22:45	2:37:14	8:27	27:27	8:51	#18809
20M	20.00 mi	13:34:35	2:49:04	8:28	11:50	8:43	#18695
21M	21.00 mi	13:43:48	2:58:17	8:30	9:13	9:13	#18587
35K	21.75 mi	13:50:09	3:04:38	8:30	6:21	8:30	#18553
23M	23.00 mi	14:01:09	3:15:38	8:31	11:00	8:48	#18483
24M	24.00 mi	14:09:54	3:24:23	8:31	8:45	8:45	#18475
40K	24.85 mi	14:17:24	3:31:53	8:32	7:30	8:47	#18413
25.2M	25.20 mi	14:20:38	3:35:07	8:33	3:14	9:23	#18375
FINISH	26.22 mi	14:29:23	3:43:52	8:33	8:45	8:36	#18379

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	F45-49	Seg. Overall	Seg. Females	Seg. F45-49
5K	3.11 mi	3.11 mi	17387	6147	6147	19517(Top 67%)	7320(Top 58%)	7320(Top 410%)
10K	6.21 mi	3.10 mi	18116-729	6569-422	6569-422	18815(Top 65%)	6923(Top 55%)	6923(Top 388%)
15K	9.32 mi	3.11 mi	18586-470	6809-240	6809-240	19517(Top 67%)	7320(Top 58%)	7320(Top 410%)
20K	12.43 mi	3.11 mi	18783-197	6936-127	6936-127	19412(Top 67%)	7308(Top 58%)	7308(Top 409%)
HALF	13.11 mi	0.68 mi	18864-81	6982-46	6982-46	20307(Top 70%)	7738(Top 62%)	7738(Top 433%)
25K	15.53 mi	2.42 mi	18875-11	7000-18	7000-18	19047(Top 66%)	7145(Top 57%)	7145(Top 400%)
30K	18.64 mi	3.11 mi	18809+66	7001-1	7001-1	18759(Top 65%)	7085(Top 56%)	7085(Top 397%)
20M	20.00 mi	1.36 mi	18695+114	6950+51	6950+51	17480(Top 60%)	6460(Top 51%)	6460(Top 362%)
21M	21.00 mi	1.00 mi	18587+108	6901+49	6901+49	17267(Top 59%)	6416(Top 51%)	6416(Top 359%)
35K	21.75 mi	0.75 mi	18553+34	6891+10	6891+10	17552(Top 60%)	6659(Top 53%)	6659(Top 373%)
23M	23.00 mi	1.25 mi	18483+70	6877+14	6877+14	17410(Top 60%)	6645(Top 53%)	6645(Top 372%)
24M	24.00 mi	1.00 mi	18475+8	6889-12	6889-12	18310(Top 63%)	7148(Top 57%)	7148(Top 400%)
40K	24.85 mi	0.85 mi	18413+62	6870+19	6870+19	17266(Top 59%)	6665(Top 53%)	6665(Top 373%)
25.2M	25.20 mi	0.35 mi	18375+38	6858+12	6858+12	16794(Top 58%)	6400(Top 51%)	6400(Top 358%)
FINISH	26.22 mi	1.02 mi	18379-4	6874-16	6874-16	18617(Top 64%)	7358(Top 58%)	7358(Top 412%)

7358

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Position interactions are being recalculated

Started about 5 hours ago. This usually takes 10-20 minutes. Please check back shortly.

Activity Data

Upload your GPX file to see detailed activity metrics

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Contact Race Support

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Quick Links

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Course Information

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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

Wei-Chi Chang

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