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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chuan Kai Shen

Bib: 7818 •M •Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 18%
Gender (Male)
#0 / 16340
Top 28%
Masters (Masters Men)
#0 / 10617
Top 14%
Age Group (M40-44)
#0 / 2198
Top 36%
Race Day Weather
51°/41°F
overcast clouds
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  • Segment-by-segment breakdown
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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
20:35
3.11 mi
Rank: #5204
Start → 5K
20:35 | 6:38/mi
10K
41:11
6.21 mi
Rank: #5217 (-13)
5K → 10K
20:36 | 6:38/mi
15K
1:01:57
9.32 mi
Rank: #5337 (-120)
10K → 15K
20:46 | 6:42/mi
20K
1:22:48
12.43 mi
Rank: #5289 (+48)
15K → 20K
20:51 | 6:43/mi
HALF
1:27:18
13.11 mi
Rank: #5280 (+9)
20K → HALF
4:30 | 6:37/mi
25K
1:43:35
15.53 mi
Rank: #5206 (+74)
HALF → 25K
16:17 | 6:43/mi
30K
2:05:14
18.64 mi
Rank: #5251 (-45)
25K → 30K
21:39 | 6:59/mi
20M
2:14:40
20.00 mi
Rank: #5218 (+33)
30K → 20M
9:26 | 6:57/mi
21M
2:21:58
21.00 mi
Rank: #5207 (+11)
20M → 21M
7:18 | 7:18/mi
35K
2:27:04
21.75 mi
Rank: #5204 (+3)
21M → 35K
5:06 | 6:50/mi
23M
2:35:45
23.00 mi
Rank: #5154 (+50)
35K → 23M
8:41 | 6:57/mi
24M
2:42:32
24.00 mi
Rank: #5125 (+29)
23M → 24M
6:47 | 6:47/mi
40K
2:48:26
24.85 mi
Rank: #5084 (+41)
24M → 40K
5:54 | 6:55/mi
25.2M
2:51:01
25.20 mi
Rank: #5059 (+25)
40K → 25.2M
2:35 | 7:30/mi
FINISH
2:57:57
26.22 mi
Rank: #5097 (-38)
25.2M → FINISH
6:56 | 6:49/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:27:18
Pace6:40 /mi
2nd Half
Distance13.11 mi
Time1:30:39
Pace6:55 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:5020:356:3820:35
6:38
-
10K
6.21 mi10:47:2641:116:3820:36
6:38
0:00
15K
9.32 mi11:08:121:01:576:3920:46
6:42
+0:04
20K
12.43 mi11:29:031:22:486:4020:51
6:43
+0:01
HALF
13.11 mi11:33:331:27:186:404:30
6:37
-0:06
25K
15.53 mi11:49:501:43:356:4116:17
6:43
+0:06
30K
18.64 mi12:11:292:05:146:4421:39
6:59
+0:16
20M
20.00 mi12:20:552:14:406:459:26
6:57
-0:02
21M
21.00 mi12:28:132:21:586:467:18
7:18
+0:21
35K
21.75 mi12:33:192:27:046:465:06
6:50
-0:28
23M
23.00 mi12:42:002:35:456:478:41
6:57
+0:07
24M
24.00 mi12:48:472:42:326:476:47
6:47
-0:10
40K
24.85 mi12:54:412:48:266:475:54
6:55
+0:08
25.2M
25.20 mi12:57:162:51:016:482:35
7:30
+0:35
FINISH
26.22 mi13:04:122:57:576:486:56
6:49
-0:41

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

6:37 /mi

Average Pace

6:48 /mi

Slowest Pace

7:30 /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

2:48:04

94% of race

Time at Steady Pace

9:53

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:47 /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 mi10:26:5020:356:3820:35
6:38
#5204
10K
6.21 mi10:47:2641:116:3820:36
6:38
#5217
15K
9.32 mi11:08:121:01:576:3920:46
6:42
#5337
20K
12.43 mi11:29:031:22:486:4020:51
6:43
#5289
HALF
13.11 mi11:33:331:27:186:404:30
6:37
#5280
25K
15.53 mi11:49:501:43:356:4116:17
6:43
#5206
30K
18.64 mi12:11:292:05:146:4421:39
6:59
#5251
20M
20.00 mi12:20:552:14:406:459:26
6:57
#5218
21M
21.00 mi12:28:132:21:586:467:18
7:18
#5207
35K
21.75 mi12:33:192:27:046:465:06
6:50
#5204
23M
23.00 mi12:42:002:35:456:478:41
6:57
#5154
24M
24.00 mi12:48:472:42:326:476:47
6:47
#5125
40K
24.85 mi12:54:412:48:266:475:54
6:55
#5084
25.2M
25.20 mi12:57:162:51:016:482:35
7:30
#5059
FINISH
26.22 mi13:04:122:57:576:486:56
6:49
#5097
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 mi5204484348435700(Top 20%)5213(Top 32%)5213(Top 237%)
10K6.21 mi3.10 mi5217-134854-114854-115281(Top 18%)4893(Top 30%)4893(Top 223%)
15K9.32 mi3.11 mi5337-1204948-944948-945700(Top 20%)5213(Top 32%)5213(Top 237%)
20K12.43 mi3.11 mi5289+484902+464902+465291(Top 18%)4877(Top 30%)4877(Top 222%)
HALF13.11 mi0.68 mi5280+94895+74895+75257(Top 18%)4834(Top 30%)4834(Top 220%)
25K15.53 mi2.42 mi5206+744827+684827+685024(Top 17%)4608(Top 28%)4608(Top 210%)
30K18.64 mi3.11 mi5251-454849-224849-225650(Top 19%)5042(Top 31%)5042(Top 229%)
20M20.00 mi1.36 mi5218+334815+344815+345148(Top 18%)4599(Top 28%)4599(Top 209%)
21M21.00 mi1.00 mi5207+114793+224793+225248(Top 18%)4591(Top 28%)4591(Top 209%)
35K21.75 mi0.75 mi5204+34784+94784+95774(Top 20%)4995(Top 31%)4995(Top 227%)
23M23.00 mi1.25 mi5154+504730+544730+545016(Top 17%)4409(Top 27%)4409(Top 201%)
24M24.00 mi1.00 mi5125+294691+394691+394984(Top 17%)4329(Top 26%)4329(Top 197%)
40K24.85 mi0.85 mi5084+414641+504641+504839(Top 17%)4165(Top 25%)4165(Top 189%)
25.2M25.20 mi0.35 mi5059+254610+314610+315166(Top 18%)4331(Top 27%)4331(Top 197%)
FINISH26.22 mi1.02 mi5097-384635-254635-256110(Top 21%)4931(Top 30%)4931(Top 224%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21
+97ft-345ft

Overall

5700

Males

5213

M40-44

5213

5K→10K

3.1 - 6.2 mi

Top 18%
×5
+79ft-138ft

Overall

5281

Males

4893

M40-44

4893

10K→15K

6.2 - 9.3 mi

Top 20%
×3
+67ft-78ft

Overall

5700

Males

5213

M40-44

5213

15K→20K

9.3 - 12.4 mi

Top 18%
×5
+106ft-86ft

Overall

5291

Males

4877

M40-44

4877

20K→HALF

12.4 - 13.1 mi

Top 18%
×2
+19ft-37ft

Overall

5257

Males

4834

M40-44

4834

HALF→25K

13.1 - 15.5 mi

Top 17%
×4
+66ft-88ft

Overall

5024

Males

4608

M40-44

4608

25K→30K

15.5 - 18.6 mi

Top 19%
×9
+181ft-148ft

Overall

5650

Males

5042

M40-44

5042

30K→20M

18.6 - 20.0 mi

Top 18%
×5
+64ft-50ft

Overall

5148

Males

4599

M40-44

4599

20M→21M

20.0 - 21.0 mi

Top 18%
×8
+106ft-24ft

Overall

5248

Males

4591

M40-44

4591

21M→35K

21.0 - 21.8 mi

Top 20%
×7
+17ft-86ft

Overall

5774

Males

4995

M40-44

4995

35K→23M

21.8 - 23.0 mi

Top 17%
×5
+23ft-63ft

Overall

5016

Males

4409

M40-44

4409

23M→24M

23.0 - 24.0 mi

Top 17%
×6
+12ft-82ft

Overall

4984

Males

4329

M40-44

4329

24M→40K

24.0 - 24.9 mi

Top 17%
×1
+6ft-20ft

Overall

4839

Males

4165

M40-44

4165

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1
+13ft-16ft

Overall

5166

Males

4331

M40-44

4331

25.2M→FINISH

25.2 - 26.2 mi

Top 21%
×2
+22ft-21ft

Overall

6110

Males

4931

M40-44

4931

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1173
Passed By
1066
Net Change
+107
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5204
5K → 10K177190-13#5204#5217
10K → 15K79199-120#5217#5337
15K → 20K13082+48#5337#5289
20K → HALF3122+9#5289#5280
HALF → 25K12753+74#5280#5206
25K → 30K113158-45#5206#5251
30K → 20M8148+33#5251#5218
20M → 21M6958+11#5218#5207
21M → 35K4542+3#5207#5204
35K → 23M9646+50#5204#5154
23M → 24M6738+29#5154#5125
24M → 40K7635+41#5125#5084
40K → 25.2M4318+25#5084#5059
25.2M → FINISH3977-38#5059#5097
TOTALS11731066+107
📊

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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