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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chun Kuen Chow

Bib: 21652 •M •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 (M60-64)
#0 / 1514
Race Day Weather
51°/41°F
overcast clouds
Personalized for Chun

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 · 8:04/mi at mile 3.1

Your report includes

  • Race Overview
  • Pacing & Splits
  • Performance Analysis
  • Segment Analysis
  • Passing Analysis
  • Potential Focus Areas
One-time purchase · Instant access · Downloadable PDF · 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
25:04
3.11 mi
Rank: #17404
Start → 5K
25:04 | 8:05/mi
10K
50:31
6.21 mi
Rank: #17949 (-545)
5K → 10K
25:27 | 8:12/mi
15K
1:16:20
9.32 mi
Rank: #18324 (-375)
10K → 15K
25:49 | 8:19/mi
20K
1:43:21
12.43 mi
Rank: #18857 (-533)
15K → 20K
27:01 | 8:42/mi
HALF
1:49:17
13.11 mi
Rank: #19001 (-144)
20K → HALF
5:56 | 8:43/mi
25K
2:11:19
15.53 mi
Rank: #19466 (-465)
HALF → 25K
22:02 | 9:06/mi
30K
2:41:52
18.64 mi
Rank: #20227 (-761)
25K → 30K
30:33 | 9:50/mi
20M
2:55:26
20.00 mi
Rank: #20484 (-257)
30K → 20M
13:34 | 10:00/mi
21M
3:07:11
21.00 mi
Rank: #20862 (-378)
20M → 21M
11:45 | 11:45/mi
35K
3:13:39
21.75 mi
Rank: #20771 (+91)
21M → 35K
6:28 | 8:39/mi
23M
3:24:57
23.00 mi
Rank: #20662 (+109)
35K → 23M
11:18 | 9:02/mi
24M
3:33:26
24.00 mi
Rank: #20497 (+165)
23M → 24M
8:29 | 8:29/mi
40K
3:41:02
24.85 mi
Rank: #20398 (+99)
24M → 40K
7:36 | 8:54/mi
25.2M
3:44:21
25.20 mi
Rank: #20362 (+36)
40K → 25.2M
3:19 | 9:38/mi
FINISH
3:53:19
26.22 mi
Rank: #20327 (+35)
25.2M → FINISH
8:58 | 8:48/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:49:17
Pace8:21 /mi
2nd Half
Distance13.11 mi
Time2:04:02
Pace9:28 /mi
📊Positive Split: 13.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:2025:048:0525:04
8:05
-
10K
6.21 mi11:51:4750:318:0825:27
8:12
+0:07
15K
9.32 mi12:17:361:16:208:1225:49
8:19
+0:07
20K
12.43 mi12:44:371:43:218:1927:01
8:42
+0:23
HALF
13.11 mi12:50:331:49:178:215:56
8:43
+0:01
25K
15.53 mi13:12:352:11:198:2822:02
9:06
+0:23
30K
18.64 mi13:43:082:41:528:4130:33
9:50
+0:44
20M
20.00 mi13:56:422:55:268:4713:34
10:00
+0:10
21M
21.00 mi14:08:273:07:118:5511:45
11:45
+1:45
35K
21.75 mi14:14:553:13:398:556:28
8:39
-3:06
23M
23.00 mi14:26:133:24:578:5511:18
9:02
+0:23
24M
24.00 mi14:34:423:33:268:548:29
8:29
-0:33
40K
24.85 mi14:42:183:41:028:547:36
8:54
+0:25
25.2M
25.20 mi14:45:373:44:218:553:19
9:38
+0:44
FINISH
26.22 mi14:54:353:53:198:558:58
8:48
-0:50

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

8:05 /mi

Average Pace

8:54 /mi

Slowest Pace

11:45 /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

1:16:20

33% of race

Time at Steady Pace

1:37:48

42% of race

Time at Slower Pace

59:11

25% of race

Average Pace: 8:54 /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 mi11:26:2025:048:0525:04
8:05
#17404
10K
6.21 mi11:51:4750:318:0825:27
8:12
#17949
15K
9.32 mi12:17:361:16:208:1225:49
8:19
#18324
20K
12.43 mi12:44:371:43:218:1927:01
8:42
#18857
HALF
13.11 mi12:50:331:49:178:215:56
8:43
#19001
25K
15.53 mi13:12:352:11:198:2822:02
9:06
#19466
30K
18.64 mi13:43:082:41:528:4130:33
9:50
#20227
20M
20.00 mi13:56:422:55:268:4713:34
10:00
#20484
21M
21.00 mi14:08:273:07:118:5511:45
11:45
#20862
35K
21.75 mi14:14:553:13:398:556:28
8:39
#20771
23M
23.00 mi14:26:133:24:578:5511:18
9:02
#20662
24M
24.00 mi14:34:423:33:268:548:29
8:29
#20497
40K
24.85 mi14:42:183:41:028:547:36
8:54
#20398
25.2M
25.20 mi14:45:373:44:218:553:19
9:38
#20362
FINISH
26.22 mi14:54:353:53:198:558:58
8:48
#20327
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi17404111801118019030(Top 66%)11891(Top 73%)11891(Top 785%)
10K6.21 mi3.10 mi17949-54511408-22811408-22818518(Top 64%)11689(Top 72%)11689(Top 772%)
15K9.32 mi3.11 mi18324-37511580-17211580-17219030(Top 66%)11891(Top 73%)11891(Top 785%)
20K12.43 mi3.11 mi18857-53311798-21811798-21820414(Top 70%)12485(Top 76%)12485(Top 825%)
HALF13.11 mi0.68 mi19001-14411858-6011858-6021294(Top 73%)12927(Top 79%)12927(Top 854%)
25K15.53 mi2.42 mi19466-46512052-19412052-19421554(Top 74%)13011(Top 80%)13011(Top 859%)
30K18.64 mi3.11 mi20227-76112373-32112373-32122656(Top 78%)13460(Top 82%)13460(Top 889%)
20M20.00 mi1.36 mi20484-25712481-10812481-10822533(Top 78%)13318(Top 82%)13318(Top 880%)
21M21.00 mi1.00 mi20862-37812643-16212643-16224631(Top 85%)14228(Top 87%)14228(Top 940%)
35K21.75 mi0.75 mi20771+9112589+5412589+5418340(Top 63%)11218(Top 69%)11218(Top 741%)
23M23.00 mi1.25 mi20662+10912533+5612533+5618622(Top 64%)11275(Top 69%)11275(Top 745%)
24M24.00 mi1.00 mi20497+16512434+9912434+9916796(Top 58%)10399(Top 64%)10399(Top 687%)
40K24.85 mi0.85 mi20398+9912371+6312371+6317842(Top 61%)10825(Top 66%)10825(Top 715%)
25.2M25.20 mi0.35 mi20362+3612346+2512346+2517837(Top 61%)10841(Top 66%)10841(Top 716%)
FINISH26.22 mi1.02 mi20327+3512314+3212314+3219630(Top 68%)11670(Top 71%)11670(Top 771%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21
+97ft-345ft

Overall

19030

Males

11891

M60-64

11891

5K→10K

3.1 - 6.2 mi

Top 64%
×5
+79ft-138ft

Overall

18518

Males

11689

M60-64

11689

10K→15K

6.2 - 9.3 mi

Top 66%
×3
+67ft-78ft

Overall

19030

Males

11891

M60-64

11891

15K→20K

9.3 - 12.4 mi

Top 70%
×5
+106ft-86ft

Overall

20414

Males

12485

M60-64

12485

20K→HALF

12.4 - 13.1 mi

Top 73%
×2
+19ft-37ft

Overall

21294

Males

12927

M60-64

12927

HALF→25K

13.1 - 15.5 mi

Top 74%
×4
+66ft-88ft

Overall

21554

Males

13011

M60-64

13011

25K→30K

15.5 - 18.6 mi

Top 78%
×9
+181ft-148ft

Overall

22656

Males

13460

M60-64

13460

30K→20M

18.6 - 20.0 mi

Top 78%
×5
+64ft-50ft

Overall

22533

Males

13318

M60-64

13318

20M→21M

20.0 - 21.0 mi

Top 85%
×8
+106ft-24ft

Overall

24631

Males

14228

M60-64

14228

21M→35K

21.0 - 21.8 mi

Top 63%
×7
+17ft-86ft

Overall

18340

Males

11218

M60-64

11218

35K→23M

21.8 - 23.0 mi

Top 64%
×5
+23ft-63ft

Overall

18622

Males

11275

M60-64

11275

23M→24M

23.0 - 24.0 mi

Top 58%
×6
+12ft-82ft

Overall

16796

Males

10399

M60-64

10399

24M→40K

24.0 - 24.9 mi

Top 61%
×1
+6ft-20ft

Overall

17842

Males

10825

M60-64

10825

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1
+13ft-16ft

Overall

17837

Males

10841

M60-64

10841

25.2M→FINISH

25.2 - 26.2 mi

Top 68%
×2
+22ft-21ft

Overall

19630

Males

11670

M60-64

11670

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1004
Passed By
1642
Net Change
-2923
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17404
5K → 10K89200-545#17404#17949
10K → 15K77200-375#17949#18324
15K → 20K50200-533#18324#18857
20K → HALF8152-144#18857#19001
HALF → 25K41200-465#19001#19466
25K → 30K61200-761#19466#20227
30K → 20M39200-257#20227#20484
20M → 21M14200-378#20484#20862
21M → 35K1009+91#20862#20771
35K → 23M13021+109#20771#20662
23M → 24M1694+165#20662#20497
24M → 40K1089+99#20497#20398
40K → 25.2M437+36#20398#20362
25.2M → FINISH7540+35#20362#20327
TOTALS10041642-2923
📊

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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