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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chun Wei Chang

Bib: 6422 •M •Age: N/A

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 25%
Gender (Male)
#0 / 16340
Top 38%
Age Group (M18-39)
#0 / 5723
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
20:52
3.11 mi
Rank: #6053
Start → 5K
20:52 | 6:43/mi
10K
42:06
6.21 mi
Rank: #6642 (-589)
5K → 10K
21:14 | 6:51/mi
15K
1:03:27
9.32 mi
Rank: #6910 (-268)
10K → 15K
21:21 | 6:53/mi
20K
1:25:52
12.43 mi
Rank: #7661 (-751)
15K → 20K
22:25 | 7:13/mi
HALF
1:30:32
13.11 mi
Rank: #7643 (+18)
20K → HALF
4:40 | 6:51/mi
25K
1:47:41
15.53 mi
Rank: #7647 (-4)
HALF → 25K
17:09 | 7:05/mi
30K
2:10:19
18.64 mi
Rank: #7637 (+10)
25K → 30K
22:38 | 7:18/mi
20M
2:20:15
20.00 mi
Rank: #7595 (+42)
30K → 20M
9:56 | 7:19/mi
21M
2:27:58
21.00 mi
Rank: #7574 (+21)
20M → 21M
7:43 | 7:43/mi
35K
2:33:17
21.75 mi
Rank: #7546 (+28)
21M → 35K
5:19 | 7:07/mi
23M
2:42:30
23.00 mi
Rank: #7489 (+57)
35K → 23M
9:13 | 7:22/mi
24M
2:49:37
24.00 mi
Rank: #7435 (+54)
23M → 24M
7:07 | 7:07/mi
40K
2:55:56
24.85 mi
Rank: #7403 (+32)
24M → 40K
6:19 | 7:24/mi
25.2M
2:58:39
25.20 mi
Rank: #7369 (+34)
40K → 25.2M
2:43 | 7:53/mi
FINISH
3:05:51
26.22 mi
Rank: #7364 (+5)
25.2M → FINISH
7:12 | 7:04/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:30:32
Pace6:55 /mi
2nd Half
Distance13.11 mi
Time1:35:19
Pace7:17 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:2720:526:4320:52
6:43
-
10K
6.21 mi10:47:4142:066:4721:14
6:51
+0:08
15K
9.32 mi11:09:021:03:276:4921:21
6:53
+0:02
20K
12.43 mi11:31:271:25:526:5522:25
7:13
+0:20
HALF
13.11 mi11:36:071:30:326:554:40
6:51
-0:22
25K
15.53 mi11:53:161:47:416:5617:09
7:05
+0:14
30K
18.64 mi12:15:542:10:197:0022:38
7:18
+0:13
20M
20.00 mi12:25:502:20:157:019:56
7:19
+0:01
21M
21.00 mi12:33:332:27:587:037:43
7:43
+0:24
35K
21.75 mi12:38:522:33:177:035:19
7:07
-0:36
23M
23.00 mi12:48:052:42:307:049:13
7:22
+0:15
24M
24.00 mi12:55:122:49:377:057:07
7:07
-0:15
40K
24.85 mi13:01:312:55:567:056:19
7:24
+0:17
25.2M
25.20 mi13:04:142:58:397:062:43
7:53
+0:29
FINISH
26.22 mi13:11:263:05:517:067:12
7:04
-0:49

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

6:43 /mi

Average Pace

7:06 /mi

Slowest Pace

7:53 /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

2:49:06

91% of race

Time at Steady Pace

16:45

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:05 /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 mi10:26:2720:526:4320:52
6:43
#6053
10K
6.21 mi10:47:4142:066:4721:14
6:51
#6642
15K
9.32 mi11:09:021:03:276:4921:21
6:53
#6910
20K
12.43 mi11:31:271:25:526:5522:25
7:13
#7661
HALF
13.11 mi11:36:071:30:326:554:40
6:51
#7643
25K
15.53 mi11:53:161:47:416:5617:09
7:05
#7647
30K
18.64 mi12:15:542:10:197:0022:38
7:18
#7637
20M
20.00 mi12:25:502:20:157:019:56
7:19
#7595
21M
21.00 mi12:33:332:27:587:037:43
7:43
#7574
35K
21.75 mi12:38:522:33:177:035:19
7:07
#7546
23M
23.00 mi12:48:052:42:307:049:13
7:22
#7489
24M
24.00 mi12:55:122:49:377:057:07
7:07
#7435
40K
24.85 mi13:01:312:55:567:056:19
7:24
#7403
25.2M
25.20 mi13:04:142:58:397:062:43
7:53
#7369
FINISH
26.22 mi13:11:263:05:517:067:12
7:04
#7364
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6053551555157554(Top 26%)6560(Top 40%)6560(Top 115%)
10K6.21 mi3.10 mi6642-5895954-4395954-4397314(Top 25%)6417(Top 39%)6417(Top 112%)
15K9.32 mi3.11 mi6910-2686133-1796133-1797554(Top 26%)6560(Top 40%)6560(Top 115%)
20K12.43 mi3.11 mi7661-7516654-5216654-5219461(Top 33%)7647(Top 47%)7647(Top 134%)
HALF13.11 mi0.68 mi7643+186641+136641+137481(Top 26%)6514(Top 40%)6514(Top 114%)
25K15.53 mi2.42 mi7647-46627+146627+147912(Top 27%)6700(Top 41%)6700(Top 117%)
30K18.64 mi3.11 mi7637+106596+316596+317956(Top 27%)6586(Top 40%)6586(Top 115%)
20M20.00 mi1.36 mi7595+426559+376559+377728(Top 27%)6336(Top 39%)6336(Top 111%)
21M21.00 mi1.00 mi7574+216532+276532+277916(Top 27%)6318(Top 39%)6318(Top 110%)
35K21.75 mi0.75 mi7546+286500+326500+327841(Top 27%)6331(Top 39%)6331(Top 111%)
23M23.00 mi1.25 mi7489+576436+646436+647868(Top 27%)6267(Top 38%)6267(Top 110%)
24M24.00 mi1.00 mi7435+546370+666370+667246(Top 25%)5830(Top 36%)5830(Top 102%)
40K24.85 mi0.85 mi7403+326328+426328+428018(Top 28%)6178(Top 38%)6178(Top 108%)
25.2M25.20 mi0.35 mi7369+346290+386290+387503(Top 26%)5834(Top 36%)5834(Top 102%)
FINISH26.22 mi1.02 mi7364+56265+256265+258062(Top 28%)6071(Top 37%)6071(Top 106%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21
+97ft-345ft

Overall

7554

Males

6560

M18-39

6560

5K→10K

3.1 - 6.2 mi

Top 25%
×5
+79ft-138ft

Overall

7314

Males

6417

M18-39

6417

10K→15K

6.2 - 9.3 mi

Top 26%
×3
+67ft-78ft

Overall

7554

Males

6560

M18-39

6560

15K→20K

9.3 - 12.4 mi

Top 33%
×5
+106ft-86ft

Overall

9461

Males

7647

M18-39

7647

20K→HALF

12.4 - 13.1 mi

Top 26%
×2
+19ft-37ft

Overall

7481

Males

6514

M18-39

6514

HALF→25K

13.1 - 15.5 mi

Top 27%
×4
+66ft-88ft

Overall

7912

Males

6700

M18-39

6700

25K→30K

15.5 - 18.6 mi

Top 27%
×9
+181ft-148ft

Overall

7956

Males

6586

M18-39

6586

30K→20M

18.6 - 20.0 mi

Top 27%
×5
+64ft-50ft

Overall

7728

Males

6336

M18-39

6336

20M→21M

20.0 - 21.0 mi

Top 27%
×8
+106ft-24ft

Overall

7916

Males

6318

M18-39

6318

21M→35K

21.0 - 21.8 mi

Top 27%
×7
+17ft-86ft

Overall

7841

Males

6331

M18-39

6331

35K→23M

21.8 - 23.0 mi

Top 27%
×5
+23ft-63ft

Overall

7868

Males

6267

M18-39

6267

23M→24M

23.0 - 24.0 mi

Top 25%
×6
+12ft-82ft

Overall

7246

Males

5830

M18-39

5830

24M→40K

24.0 - 24.9 mi

Top 28%
×1
+6ft-20ft

Overall

8018

Males

6178

M18-39

6178

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1
+13ft-16ft

Overall

7503

Males

5834

M18-39

5834

25.2M→FINISH

25.2 - 26.2 mi

Top 28%
×2
+22ft-21ft

Overall

8062

Males

6071

M18-39

6071

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1050
Passed By
1215
Net Change
-1311
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6053
5K → 10K50200-589#6053#6642
10K → 15K58200-268#6642#6910
15K → 20K30200-751#6910#7661
20K → HALF3416+18#7661#7643
HALF → 25K121125-4#7643#7647
25K → 30K144134+10#7647#7637
30K → 20M9149+42#7637#7595
20M → 21M7453+21#7595#7574
21M → 35K5628+28#7574#7546
35K → 23M10750+57#7546#7489
23M → 24M9541+54#7489#7435
24M → 40K7442+32#7435#7403
40K → 25.2M4713+34#7403#7369
25.2M → FINISH6964+5#7369#7364
TOTALS10501215-1311
📊

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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