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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chih-Hao Chang

Bib: 31219 β€’M β€’Age: N/A

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M40-44)
#0 / 2198
Race Day Weather
51Β°/41Β°F
overcast clouds
Personalized for Chih-Hao

Your Race Performance Report is ready

See how your race unfolded, where your performance changed, and what to focus on next.

Personalized by MyRace AI
Preview insight
Your pace by distance
Fastest segment Β· 9:58/mi at mile 3.1

Your report includes

  • Race Overview
  • Pacing & Splits
  • Performance Analysis
  • Segment Analysis
  • Passing Analysis
  • Improvement Opportunities
One-time purchase Β· Instant access Β· Downloadable PDF Β· Shareable report

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
30:58
3.11 mi
Rank: #25860
Start β†’ 5K
30:58 | 9:59/mi
10K
1:02:14
6.21 mi
Rank: #25932 (-72)
5K β†’ 10K
31:16 | 10:04/mi
15K
1:33:32
9.32 mi
Rank: #25922 (+10)
10K β†’ 15K
31:18 | 10:05/mi
20K
2:05:11
12.43 mi
Rank: #25775 (+147)
15K β†’ 20K
31:39 | 10:12/mi
HALF
2:14:20
13.11 mi
Rank: #26182 (-407)
20K β†’ HALF
9:09 | 13:26/mi
25K
2:41:30
15.53 mi
Rank: #26299 (-117)
HALF β†’ 25K
27:10 | 11:13/mi
30K
3:19:38
18.64 mi
Rank: #26506 (-207)
25K β†’ 30K
38:08 | 12:17/mi
20M
3:36:59
20.00 mi
Rank: #26606 (-100)
30K β†’ 20M
17:21 | 12:47/mi
21M
3:50:55
21.00 mi
Rank: #26695 (-89)
20M β†’ 21M
13:56 | 13:56/mi
35K
3:59:21
21.75 mi
Rank: #26652 (+43)
21M β†’ 35K
8:26 | 11:17/mi
23M
4:14:33
23.00 mi
Rank: #26659 (-7)
35K β†’ 23M
15:12 | 12:09/mi
24M
4:25:37
24.00 mi
Rank: #26592 (+67)
23M β†’ 24M
11:04 | 11:04/mi
40K
4:35:39
24.85 mi
Rank: #26562 (+30)
24M β†’ 40K
10:02 | 11:45/mi
25.2M
4:40:12
25.20 mi
Rank: #26559 (+3)
40K β†’ 25.2M
4:33 | 13:12/mi
FINISH
4:53:35
26.22 mi
Rank: #26714 (-155)
25.2M β†’ FINISH
13:23 | 13:08/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:14:20
Pace10:15 /mi
2nd Half
Distance13.11 mi
Time2:39:15
Pace12:09 /mi
πŸ“ŠPositive Split: 18.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:03:2230:589:5930:58
9:59
-
10K
6.21 mi12:34:381:02:1410:0131:16
10:04
+0:05
15K
9.32 mi13:05:561:33:3210:0331:18
10:05
+0:01
20K
12.43 mi13:37:352:05:1110:0531:39
10:12
+0:07
HALF
13.11 mi13:46:442:14:2010:159:09
13:26
+3:14
25K
15.53 mi14:13:542:41:3010:2427:10
11:13
-2:13
30K
18.64 mi14:52:023:19:3810:4338:08
12:17
+1:04
20M
20.00 mi15:09:233:36:5910:5117:21
12:47
+0:30
21M
21.00 mi15:23:193:50:5511:0013:56
13:56
+1:09
35K
21.75 mi15:31:453:59:2111:018:26
11:17
-2:39
23M
23.00 mi15:46:574:14:3311:0515:12
12:09
+0:52
24M
24.00 mi15:58:014:25:3711:0511:04
11:04
-1:05
40K
24.85 mi16:08:034:35:3911:0610:02
11:45
+0:41
25.2M
25.20 mi16:12:364:40:1211:084:33
13:12
+1:27
FINISH
26.22 mi16:25:594:53:3511:1313:23
13:08
-0:04

Checkpoint Splits Visualizations

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

πŸ“ˆPace 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

9:59 /mi

Average Pace

11:12 /mi

Slowest Pace

13:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

2:16:15

46% of race

Time at Steady Pace

1:38:58

34% of race

Time at Slower Pace

58:22

20% of race

Average Pace: 11:12 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi12:03:2230:589:5930:58
9:59
#25860
10K
6.21 mi12:34:381:02:1410:0131:16
10:04
#25932
15K
9.32 mi13:05:561:33:3210:0331:18
10:05
#25922
20K
12.43 mi13:37:352:05:1110:0531:39
10:12
#25775
HALF
13.11 mi13:46:442:14:2010:159:09
13:26
#26182
25K
15.53 mi14:13:542:41:3010:2427:10
11:13
#26299
30K
18.64 mi14:52:023:19:3810:4338:08
12:17
#26506
20M
20.00 mi15:09:233:36:5910:5117:21
12:47
#26606
21M
21.00 mi15:23:193:50:5511:0013:56
13:56
#26695
35K
21.75 mi15:31:453:59:2111:018:26
11:17
#26652
23M
23.00 mi15:46:574:14:3311:0515:12
12:09
#26659
24M
24.00 mi15:58:014:25:3711:0511:04
11:04
#26592
40K
24.85 mi16:08:034:35:3911:0610:02
11:45
#26562
25.2M
25.20 mi16:12:364:40:1211:084:33
13:12
#26559
FINISH
26.22 mi16:25:594:53:3511:1313:23
13:08
#26714
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 mi25860151331513325856(Top 89%)15111(Top 92%)15111(Top 687%)
10K6.21 mi3.10 mi25932-7215150-1715150-1726005(Top 90%)15178(Top 93%)15178(Top 691%)
15K9.32 mi3.11 mi25922+1015149+115149+125856(Top 89%)15111(Top 92%)15111(Top 687%)
20K12.43 mi3.11 mi25775+14715086+6315086+6325455(Top 88%)14911(Top 91%)14911(Top 678%)
HALF13.11 mi0.68 mi26182-40715252-16615252-16628825(Top 99%)16245(Top 99%)16245(Top 739%)
25K15.53 mi2.42 mi26299-11715289-3715289-3726624(Top 92%)15361(Top 94%)15361(Top 699%)
30K18.64 mi3.11 mi26506-20715350-6115350-6127098(Top 93%)15485(Top 95%)15485(Top 705%)
20M20.00 mi1.36 mi26606-10015390-4015390-4027224(Top 94%)15511(Top 95%)15511(Top 706%)
21M21.00 mi1.00 mi26695-8915420-3015420-3027270(Top 94%)15486(Top 95%)15486(Top 705%)
35K21.75 mi0.75 mi26652+4315394+2615394+2625711(Top 89%)14730(Top 90%)14730(Top 670%)
23M23.00 mi1.25 mi26659-715385+915385+926324(Top 91%)14999(Top 92%)14999(Top 682%)
24M24.00 mi1.00 mi26592+6715342+4315342+4325238(Top 87%)14437(Top 88%)14437(Top 657%)
40K24.85 mi0.85 mi26562+3015320+2215320+2225496(Top 88%)14508(Top 89%)14508(Top 660%)
25.2M25.20 mi0.35 mi26559+315314+615314+626316(Top 91%)14944(Top 91%)14944(Top 680%)
FINISH26.22 mi1.02 mi26714-15515368-5415368-5428289(Top 97%)15928(Top 97%)15928(Top 725%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
Γ—21
+97ft-345ft

Overall

25856

Males

15111

M40-44

15111

5K→10K

3.1 - 6.2 mi

Top 90%
Γ—5
+79ft-138ft

Overall

26005

Males

15178

M40-44

15178

10K→15K

6.2 - 9.3 mi

Top 89%
Γ—3
+67ft-78ft

Overall

25856

Males

15111

M40-44

15111

15K→20K

9.3 - 12.4 mi

Top 88%
Γ—5
+106ft-86ft

Overall

25455

Males

14911

M40-44

14911

20K→HALF

12.4 - 13.1 mi

Top 99%
Γ—2
+19ft-37ft

Overall

28825

Males

16245

M40-44

16245

HALF→25K

13.1 - 15.5 mi

Top 92%
Γ—4
+66ft-88ft

Overall

26624

Males

15361

M40-44

15361

25K→30K

15.5 - 18.6 mi

Top 93%
Γ—9
+181ft-148ft

Overall

27098

Males

15485

M40-44

15485

30K→20M

18.6 - 20.0 mi

Top 94%
Γ—5
+64ft-50ft

Overall

27224

Males

15511

M40-44

15511

20M→21M

20.0 - 21.0 mi

Top 94%
Γ—8
+106ft-24ft

Overall

27270

Males

15486

M40-44

15486

21M→35K

21.0 - 21.8 mi

Top 89%
Γ—7
+17ft-86ft

Overall

25711

Males

14730

M40-44

14730

35K→23M

21.8 - 23.0 mi

Top 91%
Γ—5
+23ft-63ft

Overall

26324

Males

14999

M40-44

14999

23M→24M

23.0 - 24.0 mi

Top 87%
Γ—6
+12ft-82ft

Overall

25238

Males

14437

M40-44

14437

24M→40K

24.0 - 24.9 mi

Top 88%
Γ—1
+6ft-20ft

Overall

25496

Males

14508

M40-44

14508

40K→25.2M

24.9 - 25.2 mi

Top 91%
Γ—1
+13ft-16ft

Overall

26316

Males

14944

M40-44

14944

25.2M→FINISH

25.2 - 26.2 mi

Top 97%
Γ—2
+22ft-21ft

Overall

28289

Males

15928

M40-44

15928

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
867
Passed By
1414
Net Change
-854
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#25860
5K β†’ 10K172200-72#25860#25932
10K β†’ 15K127117+10#25932#25922
15K β†’ 20K19548+147#25922#25775
20K β†’ HALF1200-407#25775#26182
HALF β†’ 25K50167-117#26182#26299
25K β†’ 30K48200-207#26299#26506
30K β†’ 20M21121-100#26506#26606
20M β†’ 21M22111-89#26606#26695
21M β†’ 35K518+43#26695#26652
35K β†’ 23M3845-7#26652#26659
23M β†’ 24M758+67#26659#26592
24M β†’ 40K4515+30#26592#26562
40K β†’ 25.2M1916+3#26562#26559
25.2M β†’ FINISH3158-155#26559#26714
TOTALS8671414-854
πŸ“Š

Passing Analysis Visualizations

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

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Activity Data

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