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BOSTON MARATHON 2026

Weihung Chang

Bib: 6521•M

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 48%
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M40-44)
#0 / 2198
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
5K
20:47
3.11 mi
Rank: #5801
Start → 5K
20:47 | 6:42/mi
10K
41:50
6.21 mi
Rank: #6234 (-433)
5K → 10K
21:03 | 6:47/mi
15K
1:02:53
9.32 mi
Rank: #6311 (-77)
10K → 15K
21:03 | 6:47/mi
20K
1:24:15
12.43 mi
Rank: #6421 (-110)
15K → 20K
21:22 | 6:53/mi
HALF
1:28:58
13.11 mi
Rank: #6519 (-98)
20K → HALF
4:43 | 6:56/mi
25K
1:46:31
15.53 mi
Rank: #7032 (-513)
HALF → 25K
17:33 | 7:15/mi
30K
2:12:11
18.64 mi
Rank: #8365 (-1333)
25K → 30K
25:40 | 8:16/mi
20M
2:25:00
20.00 mi
Rank: #9456 (-1091)
30K → 20M
12:49 | 9:27/mi
21M
2:37:19
21.00 mi
Rank: #11238 (-1782)
20M → 21M
12:19 | 12:19/mi
35K
2:43:55
21.75 mi
Rank: #11581 (-343)
21M → 35K
6:36 | 8:50/mi
23M
2:55:27
23.00 mi
Rank: #12176 (-595)
35K → 23M
11:32 | 9:13/mi
24M
3:04:38
24.00 mi
Rank: #12624 (-448)
23M → 24M
9:11 | 9:11/mi
40K
3:13:19
24.85 mi
Rank: #13154 (-530)
24M → 40K
8:41 | 10:10/mi
25.2M
3:16:46
25.20 mi
Rank: #13278 (-124)
40K → 25.2M
3:27 | 10:01/mi
FINISH
3:26:57
26.22 mi
Rank: #14005 (-727)
25.2M → FINISH
10:11 | 10:00/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:28:58
Pace6:48 /mi
2nd Half
Distance13.11 mi
Time1:57:59
Pace9:00 /mi
📊Positive Split: 32.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:1520:476:4220:47
6:42
-
10K
6.21 mi10:47:1841:506:4421:03
6:47
+0:05
15K
9.32 mi11:08:211:02:536:4521:03
6:47
0:00
20K
12.43 mi11:29:431:24:156:4721:22
6:53
+0:06
HALF
13.11 mi11:34:261:28:586:484:43
6:56
+0:03
25K
15.53 mi11:51:591:46:316:5217:33
7:15
+0:19
30K
18.64 mi12:17:392:12:117:0625:40
8:16
+1:01
20M
20.00 mi12:30:282:25:007:1612:49
9:27
+1:11
21M
21.00 mi12:42:472:37:197:3012:19
12:19
+2:52
35K
21.75 mi12:49:232:43:557:336:36
8:50
-3:29
23M
23.00 mi13:00:552:55:277:3811:32
9:13
+0:23
24M
24.00 mi13:10:063:04:387:429:11
9:11
-0:02
40K
24.85 mi13:18:473:13:197:478:41
10:10
+0:59
25.2M
25.20 mi13:22:143:16:467:493:27
10:01
-0:09
FINISH
26.22 mi13:32:253:26:577:5410:11
10:00
-0:01

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

6:42 /mi

Average Pace

7:54 /mi

Slowest Pace

12:19 /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

1:46:31

51% of race

Time at Steady Pace

1:05:48

32% of race

Time at Slower Pace

34:38

17% of race

Average Pace: 7:54 /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.

Loading...
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

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:26:1520:476:4220:47
6:42
#5801
10K
6.21 mi10:47:1841:506:4421:03
6:47
#6234
15K
9.32 mi11:08:211:02:536:4521:03
6:47
#6311
20K
12.43 mi11:29:431:24:156:4721:22
6:53
#6421
HALF
13.11 mi11:34:261:28:586:484:43
6:56
#6519
25K
15.53 mi11:51:591:46:316:5217:33
7:15
#7032
30K
18.64 mi12:17:392:12:117:0625:40
8:16
#8365
20M
20.00 mi12:30:282:25:007:1612:49
9:27
#9456
21M
21.00 mi12:42:472:37:197:3012:19
12:19
#11238
35K
21.75 mi12:49:232:43:557:336:36
8:50
#11581
23M
23.00 mi13:00:552:55:277:3811:32
9:13
#12176
24M
24.00 mi13:10:063:04:387:429:11
9:11
#12624
40K
24.85 mi13:18:473:13:197:478:41
10:10
#13154
25.2M
25.20 mi13:22:143:16:467:493:27
10:01
#13278
FINISH
26.22 mi13:32:253:26:577:5410:11
10:00
#14005
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5801532553256587(Top 23%)5882(Top 36%)5882(Top 268%)
10K6.21 mi3.10 mi6234-4335655-3305655-3306730(Top 23%)6000(Top 37%)6000(Top 273%)
15K9.32 mi3.11 mi6311-775711-565711-566587(Top 23%)5882(Top 36%)5882(Top 268%)
20K12.43 mi3.11 mi6421-1105779-685779-686917(Top 24%)6097(Top 37%)6097(Top 277%)
HALF13.11 mi0.68 mi6519-985847-685847-688100(Top 28%)6933(Top 42%)6933(Top 315%)
25K15.53 mi2.42 mi7032-5136207-3606207-3609186(Top 32%)7435(Top 46%)7435(Top 338%)
30K18.64 mi3.11 mi8365-13337048-8417048-84115336(Top 53%)10116(Top 62%)10116(Top 460%)
20M20.00 mi1.36 mi9456-10917634-5867634-58620810(Top 72%)12475(Top 76%)12475(Top 568%)
21M21.00 mi1.00 mi11238-17828488-8548488-85425515(Top 88%)14638(Top 90%)14638(Top 666%)
35K21.75 mi0.75 mi11581-3438644-1568644-15619197(Top 66%)11574(Top 71%)11574(Top 527%)
23M23.00 mi1.25 mi12176-5958869-2258869-22519476(Top 67%)11680(Top 71%)11680(Top 531%)
24M24.00 mi1.00 mi12624-4489039-1709039-17020174(Top 70%)11953(Top 73%)11953(Top 544%)
40K24.85 mi0.85 mi13154-5309255-2169255-21622328(Top 77%)12975(Top 79%)12975(Top 590%)
25.2M25.20 mi0.35 mi13278-1249292-379292-3719361(Top 67%)11527(Top 71%)11527(Top 524%)
FINISH26.22 mi1.02 mi14005-7279573-2819573-28123786(Top 82%)13682(Top 84%)13682(Top 622%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21
+97ft-345ft

Overall

6587

Males

5882

M40-44

5882

5K→10K

3.1 - 6.2 mi

Top 23%
×5
+79ft-138ft

Overall

6730

Males

6000

M40-44

6000

10K→15K

6.2 - 9.3 mi

Top 23%
×3
+67ft-78ft

Overall

6587

Males

5882

M40-44

5882

15K→20K

9.3 - 12.4 mi

Top 24%
×5
+106ft-86ft

Overall

6917

Males

6097

M40-44

6097

20K→HALF

12.4 - 13.1 mi

Top 28%
×2
+19ft-37ft

Overall

8100

Males

6933

M40-44

6933

HALF→25K

13.1 - 15.5 mi

Top 32%
×4
+66ft-88ft

Overall

9186

Males

7435

M40-44

7435

25K→30K

15.5 - 18.6 mi

Top 53%
×9
+181ft-148ft

Overall

15336

Males

10116

M40-44

10116

30K→20M

18.6 - 20.0 mi

Top 72%
×5
+64ft-50ft

Overall

20810

Males

12475

M40-44

12475

20M→21M

20.0 - 21.0 mi

Top 88%
×8
+106ft-24ft

Overall

25515

Males

14638

M40-44

14638

21M→35K

21.0 - 21.8 mi

Top 66%
×7
+17ft-86ft

Overall

19197

Males

11574

M40-44

11574

35K→23M

21.8 - 23.0 mi

Top 67%
×5
+23ft-63ft

Overall

19476

Males

11680

M40-44

11680

23M→24M

23.0 - 24.0 mi

Top 70%
×6
+12ft-82ft

Overall

20174

Males

11953

M40-44

11953

24M→40K

24.0 - 24.9 mi

Top 77%
×1
+6ft-20ft

Overall

22328

Males

12975

M40-44

12975

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1
+13ft-16ft

Overall

19361

Males

11527

M40-44

11527

25.2M→FINISH

25.2 - 26.2 mi

Top 82%
×2
+22ft-21ft

Overall

23786

Males

13682

M40-44

13682

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
412
Passed By
2617
Net Change
-8204
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5801
5K → 10K65200-433#5801#6234
10K → 15K108185-77#6234#6311
15K → 20K114200-110#6311#6421
20K → HALF3101-98#6421#6519
HALF → 25K36200-513#6519#7032
25K → 30K9200-1333#7032#8365
30K → 20M7200-1091#8365#9456
20M → 21M0200-1782#9456#11238
21M → 35K13200-343#11238#11581
35K → 23M16200-595#11581#12176
23M → 24M19200-448#12176#12624
24M → 40K13200-530#12624#13154
40K → 25.2M7131-124#13154#13278
25.2M → FINISH2200-727#13278#14005
TOTALS4122617-8204
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing