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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Ko Cheng Hsiao

Bib: 13291 •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
24:51
3.11 mi
Rank: #16937
Start → 5K
24:51 | 8:00/mi
10K
48:57
6.21 mi
Rank: #16113 (+824)
5K → 10K
24:06 | 7:46/mi
15K
1:13:41
9.32 mi
Rank: #16304 (-191)
10K → 15K
24:44 | 7:58/mi
20K
1:40:05
12.43 mi
Rank: #17223 (-919)
15K → 20K
26:24 | 8:30/mi
HALF
1:45:47
13.11 mi
Rank: #17319 (-96)
20K → HALF
5:42 | 8:22/mi
25K
2:09:04
15.53 mi
Rank: #18582 (-1263)
HALF → 25K
23:17 | 9:37/mi
30K
2:40:59
18.64 mi
Rank: #19956 (-1374)
25K → 30K
31:55 | 10:17/mi
20M
2:54:53
20.00 mi
Rank: #20345 (-389)
30K → 20M
13:54 | 10:14/mi
21M
3:06:02
21.00 mi
Rank: #20617 (-272)
20M → 21M
11:09 | 11:09/mi
35K
3:12:39
21.75 mi
Rank: #20567 (+50)
21M → 35K
6:37 | 8:51/mi
23M
3:24:07
23.00 mi
Rank: #20490 (+77)
35K → 23M
11:28 | 9:10/mi
24M
3:32:34
24.00 mi
Rank: #20339 (+151)
23M → 24M
8:27 | 8:27/mi
40K
3:40:02
24.85 mi
Rank: #20211 (+128)
24M → 40K
7:28 | 8:44/mi
25.2M
3:43:21
25.20 mi
Rank: #20178 (+33)
40K → 25.2M
3:19 | 9:38/mi
FINISH
3:52:22
26.22 mi
Rank: #20162 (+16)
25.2M → FINISH
9:01 | 8:51/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
Time1:45:47
Pace8:05 /mi
2nd Half
Distance13.11 mi
Time2:06:35
Pace9:40 /mi
📊Positive Split: 19.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:4524:518:0024:51
8:00
-
10K
6.21 mi11:50:5148:577:5324:06
7:46
-0:14
15K
9.32 mi12:15:351:13:417:5524:44
7:58
+0:12
20K
12.43 mi12:41:591:40:058:0426:24
8:30
+0:32
HALF
13.11 mi12:47:411:45:478:055:42
8:22
-0:08
25K
15.53 mi13:10:582:09:048:1923:17
9:37
+1:15
30K
18.64 mi13:42:532:40:598:3931:55
10:17
+0:40
20M
20.00 mi13:56:472:54:538:4513:54
10:14
-0:03
21M
21.00 mi14:07:563:06:028:5211:09
11:09
+0:55
35K
21.75 mi14:14:333:12:398:526:37
8:51
-2:18
23M
23.00 mi14:26:013:24:078:5311:28
9:10
+0:19
24M
24.00 mi14:34:283:32:348:528:27
8:27
-0:43
40K
24.85 mi14:41:563:40:028:527:28
8:44
+0:17
25.2M
25.20 mi14:45:153:43:218:523:19
9:38
+0:54
FINISH
26.22 mi14:54:163:52:228:539:01
8:51
-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

7:46 /mi

Average Pace

8:52 /mi

Slowest Pace

11:09 /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

1:19:23

34% of race

Time at Steady Pace

1:09:25

30% of race

Time at Slower Pace

1:23:34

36% 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 mi11:26:4524:518:0024:51
8:00
#16937
10K
6.21 mi11:50:5148:577:5324:06
7:46
#16113
15K
9.32 mi12:15:351:13:417:5524:44
7:58
#16304
20K
12.43 mi12:41:591:40:058:0426:24
8:30
#17223
HALF
13.11 mi12:47:411:45:478:055:42
8:22
#17319
25K
15.53 mi13:10:582:09:048:1923:17
9:37
#18582
30K
18.64 mi13:42:532:40:598:3931:55
10:17
#19956
20M
20.00 mi13:56:472:54:538:4513:54
10:14
#20345
21M
21.00 mi14:07:563:06:028:5211:09
11:09
#20617
35K
21.75 mi14:14:333:12:398:526:37
8:51
#20567
23M
23.00 mi14:26:013:24:078:5311:28
9:10
#20490
24M
24.00 mi14:34:283:32:348:528:27
8:27
#20339
40K
24.85 mi14:41:563:40:028:527:28
8:44
#20211
25.2M
25.20 mi14:45:153:43:218:523:19
9:38
#20178
FINISH
26.22 mi14:54:163:52:228:539:01
8:51
#20162
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 mi16937109851098516691(Top 58%)10895(Top 67%)10895(Top 452%)
10K6.21 mi3.10 mi16113+82410638+34710638+34715232(Top 52%)10320(Top 63%)10320(Top 428%)
15K9.32 mi3.11 mi16304-19110709-7110709-7116691(Top 58%)10895(Top 67%)10895(Top 452%)
20K12.43 mi3.11 mi17223-91911095-38611095-38619291(Top 66%)11973(Top 73%)11973(Top 496%)
HALF13.11 mi0.68 mi17319-9611124-2911124-2919396(Top 67%)12061(Top 74%)12061(Top 500%)
25K15.53 mi2.42 mi18582-126311675-55111675-55123291(Top 80%)13842(Top 85%)13842(Top 574%)
30K18.64 mi3.11 mi19956-137412248-57312248-57323792(Top 82%)13976(Top 86%)13976(Top 579%)
20M20.00 mi1.36 mi20345-38912414-16612414-16623175(Top 80%)13618(Top 83%)13618(Top 564%)
21M21.00 mi1.00 mi20617-27212540-12612540-12623429(Top 81%)13683(Top 84%)13683(Top 567%)
35K21.75 mi0.75 mi20567+5012500+4012500+4019337(Top 67%)11655(Top 71%)11655(Top 483%)
23M23.00 mi1.25 mi20490+7712447+5312447+5319241(Top 66%)11582(Top 71%)11582(Top 480%)
24M24.00 mi1.00 mi20339+15112363+8412363+8416590(Top 57%)10308(Top 63%)10308(Top 427%)
40K24.85 mi0.85 mi20211+12812275+8812275+8817016(Top 59%)10434(Top 64%)10434(Top 432%)
25.2M25.20 mi0.35 mi20178+3312251+2412251+2417836(Top 61%)10840(Top 66%)10840(Top 449%)
FINISH26.22 mi1.02 mi20162+1612227+2412227+2419846(Top 68%)11769(Top 72%)11769(Top 488%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21
+97ft-345ft

Overall

16691

Males

10895

M45-49

10895

5K→10K

3.1 - 6.2 mi

Top 52%
×5
+79ft-138ft

Overall

15232

Males

10320

M45-49

10320

10K→15K

6.2 - 9.3 mi

Top 58%
×3
+67ft-78ft

Overall

16691

Males

10895

M45-49

10895

15K→20K

9.3 - 12.4 mi

Top 66%
×5
+106ft-86ft

Overall

19291

Males

11973

M45-49

11973

20K→HALF

12.4 - 13.1 mi

Top 67%
×2
+19ft-37ft

Overall

19396

Males

12061

M45-49

12061

HALF→25K

13.1 - 15.5 mi

Top 80%
×4
+66ft-88ft

Overall

23291

Males

13842

M45-49

13842

25K→30K

15.5 - 18.6 mi

Top 82%
×9
+181ft-148ft

Overall

23792

Males

13976

M45-49

13976

30K→20M

18.6 - 20.0 mi

Top 80%
×5
+64ft-50ft

Overall

23175

Males

13618

M45-49

13618

20M→21M

20.0 - 21.0 mi

Top 81%
×8
+106ft-24ft

Overall

23429

Males

13683

M45-49

13683

21M→35K

21.0 - 21.8 mi

Top 67%
×7
+17ft-86ft

Overall

19337

Males

11655

M45-49

11655

35K→23M

21.8 - 23.0 mi

Top 66%
×5
+23ft-63ft

Overall

19241

Males

11582

M45-49

11582

23M→24M

23.0 - 24.0 mi

Top 57%
×6
+12ft-82ft

Overall

16590

Males

10308

M45-49

10308

24M→40K

24.0 - 24.9 mi

Top 59%
×1
+6ft-20ft

Overall

17016

Males

10434

M45-49

10434

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1
+13ft-16ft

Overall

17836

Males

10840

M45-49

10840

25.2M→FINISH

25.2 - 26.2 mi

Top 68%
×2
+22ft-21ft

Overall

19846

Males

11769

M45-49

11769

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1724*
Passed By
1491
Net Change
-3225
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16937
5K → 10K889*65+824#16937#16113
10K → 15K129200-191#16113#16304
15K → 20K36200-919#16304#17223
20K → HALF13109-96#17223#17319
HALF → 25K9200-1263#17319#18582
25K → 30K25200-1374#18582#19956
30K → 20M27200-389#19956#20345
20M → 21M24200-272#20345#20617
21M → 35K6212+50#20617#20567
35K → 23M11033+77#20567#20490
23M → 24M1609+151#20490#20339
24M → 40K1346+128#20339#20211
40K → 25.2M396+33#20211#20178
25.2M → FINISH6751+16#20178#20162
TOTALS1724*1491-3225

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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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