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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Yun-Fu Tsai

Bib: 13071 •M •Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M45-49)
#0 / 2413
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
23:33
3.11 mi
Rank: #13456
Start → 5K
23:33 | 7:35/mi
10K
47:32
6.21 mi
Rank: #14167 (-711)
5K → 10K
23:59 | 7:44/mi
15K
1:11:53
9.32 mi
Rank: #14646 (-479)
10K → 15K
24:21 | 7:51/mi
20K
1:37:50
12.43 mi
Rank: #15766 (-1120)
15K → 20K
25:57 | 8:22/mi
HALF
1:43:15
13.11 mi
Rank: #15822 (-56)
20K → HALF
5:25 | 7:57/mi
25K
2:04:37
15.53 mi
Rank: #16728 (-906)
HALF → 25K
21:22 | 8:49/mi
30K
2:33:12
18.64 mi
Rank: #17500 (-772)
25K → 30K
28:35 | 9:13/mi
20M
2:46:54
20.00 mi
Rank: #18063 (-563)
30K → 20M
13:42 | 10:06/mi
21M
2:58:13
21.00 mi
Rank: #18574 (-511)
20M → 21M
11:19 | 11:19/mi
35K
3:06:24
21.75 mi
Rank: #19037 (-463)
21M → 35K
8:11 | 10:57/mi
23M
3:19:07
23.00 mi
Rank: #19366 (-329)
35K → 23M
12:43 | 10:10/mi
24M
3:29:22
24.00 mi
Rank: #19665 (-299)
23M → 24M
10:15 | 10:15/mi
40K
3:38:18
24.85 mi
Rank: #19881 (-216)
24M → 40K
8:56 | 10:27/mi
25.2M
3:42:46
25.20 mi
Rank: #20087 (-206)
40K → 25.2M
4:28 | 12:58/mi
FINISH
3:52:35
26.22 mi
Rank: #20203 (-116)
25.2M → FINISH
9:49 | 9:38/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
Time1:43:15
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time2:09:20
Pace9:52 /mi
📊Positive Split: 25.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1923:337:3523:33
7:35
-
10K
6.21 mi11:16:1847:327:3923:59
7:44
+0:09
15K
9.32 mi11:40:391:11:537:4324:21
7:51
+0:07
20K
12.43 mi12:06:361:37:507:5325:57
8:22
+0:31
HALF
13.11 mi12:12:011:43:157:535:25
7:57
-0:25
25K
15.53 mi12:33:232:04:378:0221:22
8:49
+0:52
30K
18.64 mi13:01:582:33:128:1428:35
9:13
+0:24
20M
20.00 mi13:15:402:46:548:2113:42
10:06
+0:53
21M
21.00 mi13:26:592:58:138:3011:19
11:19
+1:13
35K
21.75 mi13:35:103:06:248:358:11
10:57
-0:22
23M
23.00 mi13:47:533:19:078:4012:43
10:10
-0:47
24M
24.00 mi13:58:083:29:228:4410:15
10:15
+0:05
40K
24.85 mi14:07:043:38:188:478:56
10:27
+0:12
25.2M
25.20 mi14:11:323:42:468:514:28
12:58
+2:31
FINISH
26.22 mi14:21:213:52:358:539:49
9:38
-3:20

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

7:35 /mi

Average Pace

8:53 /mi

Slowest Pace

12:58 /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

2:04:37

54% of race

Time at Steady Pace

1:15:04

32% of race

Time at Slower Pace

32:54

14% of race

Average Pace: 8:52 /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 mi10:52:1923:337:3523:33
7:35
#13456
10K
6.21 mi11:16:1847:327:3923:59
7:44
#14167
15K
9.32 mi11:40:391:11:537:4324:21
7:51
#14646
20K
12.43 mi12:06:361:37:507:5325:57
8:22
#15766
HALF
13.11 mi12:12:011:43:157:535:25
7:57
#15822
25K
15.53 mi12:33:232:04:378:0221:22
8:49
#16728
30K
18.64 mi13:01:582:33:128:1428:35
9:13
#17500
20M
20.00 mi13:15:402:46:548:2113:42
10:06
#18063
21M
21.00 mi13:26:592:58:138:3011:19
11:19
#18574
35K
21.75 mi13:35:103:06:248:358:11
10:57
#19037
23M
23.00 mi13:47:533:19:078:4012:43
10:10
#19366
24M
24.00 mi13:58:083:29:228:4410:15
10:15
#19665
40K
24.85 mi14:07:043:38:188:478:56
10:27
#19881
25.2M
25.20 mi14:11:323:42:468:514:28
12:58
#20087
FINISH
26.22 mi14:21:213:52:358:539:49
9:38
#20203
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi134569663966315660(Top 54%)10449(Top 64%)10449(Top 433%)
10K6.21 mi3.10 mi14167-7119918-2559918-25514923(Top 51%)10210(Top 62%)10210(Top 423%)
15K9.32 mi3.11 mi14646-47910072-15410072-15415660(Top 54%)10449(Top 64%)10449(Top 433%)
20K12.43 mi3.11 mi15766-112010489-41710489-41718427(Top 63%)11596(Top 71%)11596(Top 481%)
HALF13.11 mi0.68 mi15822-5610509-2010509-2016703(Top 58%)10917(Top 67%)10917(Top 452%)
25K15.53 mi2.42 mi16728-90610875-36610875-36620279(Top 70%)12398(Top 76%)12398(Top 514%)
30K18.64 mi3.11 mi17500-77211191-31611191-31620508(Top 71%)12423(Top 76%)12423(Top 515%)
20M20.00 mi1.36 mi18063-56311386-19511386-19522797(Top 79%)13442(Top 82%)13442(Top 557%)
21M21.00 mi1.00 mi18574-51111599-21311599-21323773(Top 82%)13827(Top 85%)13827(Top 573%)
35K21.75 mi0.75 mi19037-46311790-19111790-19125157(Top 87%)14457(Top 88%)14457(Top 599%)
23M23.00 mi1.25 mi19366-32911905-11511905-11522551(Top 78%)13187(Top 81%)13187(Top 546%)
24M24.00 mi1.00 mi19665-29912026-12112026-12123466(Top 81%)13590(Top 83%)13590(Top 563%)
40K24.85 mi0.85 mi19881-21612112-8612112-8623071(Top 79%)13331(Top 82%)13331(Top 552%)
25.2M25.20 mi0.35 mi20087-20612205-9312205-9325971(Top 89%)14769(Top 90%)14769(Top 612%)
FINISH26.22 mi1.02 mi20203-11612254-4912254-4922761(Top 78%)13193(Top 81%)13193(Top 547%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21
+97ft-345ft

Overall

15660

Males

10449

M45-49

10449

5K→10K

3.1 - 6.2 mi

Top 51%
×5
+79ft-138ft

Overall

14923

Males

10210

M45-49

10210

10K→15K

6.2 - 9.3 mi

Top 54%
×3
+67ft-78ft

Overall

15660

Males

10449

M45-49

10449

15K→20K

9.3 - 12.4 mi

Top 63%
×5
+106ft-86ft

Overall

18427

Males

11596

M45-49

11596

20K→HALF

12.4 - 13.1 mi

Top 58%
×2
+19ft-37ft

Overall

16703

Males

10917

M45-49

10917

HALF→25K

13.1 - 15.5 mi

Top 70%
×4
+66ft-88ft

Overall

20279

Males

12398

M45-49

12398

25K→30K

15.5 - 18.6 mi

Top 71%
×9
+181ft-148ft

Overall

20508

Males

12423

M45-49

12423

30K→20M

18.6 - 20.0 mi

Top 79%
×5
+64ft-50ft

Overall

22797

Males

13442

M45-49

13442

20M→21M

20.0 - 21.0 mi

Top 82%
×8
+106ft-24ft

Overall

23773

Males

13827

M45-49

13827

21M→35K

21.0 - 21.8 mi

Top 87%
×7
+17ft-86ft

Overall

25157

Males

14457

M45-49

14457

35K→23M

21.8 - 23.0 mi

Top 78%
×5
+23ft-63ft

Overall

22551

Males

13187

M45-49

13187

23M→24M

23.0 - 24.0 mi

Top 81%
×6
+12ft-82ft

Overall

23466

Males

13590

M45-49

13590

24M→40K

24.0 - 24.9 mi

Top 79%
×1
+6ft-20ft

Overall

23071

Males

13331

M45-49

13331

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1
+13ft-16ft

Overall

25971

Males

14769

M45-49

14769

25.2M→FINISH

25.2 - 26.2 mi

Top 78%
×2
+22ft-21ft

Overall

22761

Males

13193

M45-49

13193

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
414
Passed By
2612
Net Change
-6747
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13456
5K → 10K84200-711#13456#14167
10K → 15K86200-479#14167#14646
15K → 20K19200-1120#14646#15766
20K → HALF2076-56#15766#15822
HALF → 25K26200-906#15822#16728
25K → 30K58200-772#16728#17500
30K → 20M19200-563#17500#18063
20M → 21M9200-511#18063#18574
21M → 35K9200-463#18574#19037
35K → 23M25200-329#19037#19366
23M → 24M23200-299#19366#19665
24M → 40K16200-216#19665#19881
40K → 25.2M0200-206#19881#20087
25.2M → FINISH20136-116#20087#20203
TOTALS4142612-6747
📊

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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