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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Bun Song Chhuon

Bib: 28823 •M •Age: N/A

MA

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
30:12
3.11 mi
Rank: #25137
Start → 5K
30:12 | 9:44/mi
10K
58:32
6.21 mi
Rank: #24288 (+849)
5K → 10K
28:20 | 9:08/mi
15K
1:27:20
9.32 mi
Rank: #24131 (+157)
10K → 15K
28:48 | 9:17/mi
20K
1:57:25
12.43 mi
Rank: #24165 (-34)
15K → 20K
30:05 | 9:41/mi
HALF
2:03:54
13.11 mi
Rank: #24168 (-3)
20K → HALF
6:29 | 9:31/mi
25K
2:27:58
15.53 mi
Rank: #24174 (-6)
HALF → 25K
24:04 | 9:56/mi
30K
2:59:56
18.64 mi
Rank: #24071 (+103)
25K → 30K
31:58 | 10:18/mi
20M
3:15:20
20.00 mi
Rank: #24209 (-138)
30K → 20M
15:24 | 11:21/mi
21M
3:27:20
21.00 mi
Rank: #24269 (-60)
20M → 21M
12:00 | 12:00/mi
35K
3:35:02
21.75 mi
Rank: #24257 (+12)
21M → 35K
7:42 | 10:18/mi
23M
3:47:38
23.00 mi
Rank: #24116 (+141)
35K → 23M
12:36 | 10:05/mi
24M
3:57:48
24.00 mi
Rank: #24070 (+46)
23M → 24M
10:10 | 10:10/mi
40K
4:07:20
24.85 mi
Rank: #24091 (-21)
24M → 40K
9:32 | 11:10/mi
25.2M
4:11:28
25.20 mi
Rank: #24094 (-3)
40K → 25.2M
4:08 | 12:00/mi
FINISH
4:22:09
26.22 mi
Rank: #24140 (-46)
25.2M → FINISH
10:41 | 10:30/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:03:54
Pace9:28 /mi
2nd Half
Distance13.11 mi
Time2:18:15
Pace10:33 /mi
📊Positive Split: 11.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:0930:129:4430:12
9:44
-
10K
6.21 mi12:21:2958:329:2628:20
9:08
-0:36
15K
9.32 mi12:50:171:27:209:2328:48
9:17
+0:09
20K
12.43 mi13:20:221:57:259:2730:05
9:41
+0:24
HALF
13.11 mi13:26:512:03:549:286:29
9:31
-0:10
25K
15.53 mi13:50:552:27:589:3224:04
9:56
+0:25
30K
18.64 mi14:22:532:59:569:4031:58
10:18
+0:22
20M
20.00 mi14:38:173:15:209:4715:24
11:21
+1:03
21M
21.00 mi14:50:173:27:209:5312:00
12:00
+0:39
35K
21.75 mi14:57:593:35:029:547:42
10:18
-1:42
23M
23.00 mi15:10:353:47:389:5412:36
10:05
-0:13
24M
24.00 mi15:20:453:57:489:5510:10
10:10
+0:05
40K
24.85 mi15:30:174:07:209:589:32
11:10
+1:00
25.2M
25.20 mi15:34:254:11:289:594:08
12:00
+0:50
FINISH
26.22 mi15:45:064:22:0910:0110:41
10:30
-1:30

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

9:08 /mi

Average Pace

10:00 /mi

Slowest Pace

12:00 /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

1:33:42

36% of race

Time at Steady Pace

2:07:23

49% of race

Time at Slower Pace

41:04

16% of race

Average Pace: 10:00 /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 mi11:53:0930:129:4430:12
9:44
#25137
10K
6.21 mi12:21:2958:329:2628:20
9:08
#24288
15K
9.32 mi12:50:171:27:209:2328:48
9:17
#24131
20K
12.43 mi13:20:221:57:259:2730:05
9:41
#24165
HALF
13.11 mi13:26:512:03:549:286:29
9:31
#24168
25K
15.53 mi13:50:552:27:589:3224:04
9:56
#24174
30K
18.64 mi14:22:532:59:569:4031:58
10:18
#24071
20M
20.00 mi14:38:173:15:209:4715:24
11:21
#24209
21M
21.00 mi14:50:173:27:209:5312:00
12:00
#24269
35K
21.75 mi14:57:593:35:029:547:42
10:18
#24257
23M
23.00 mi15:10:353:47:389:5412:36
10:05
#24116
24M
24.00 mi15:20:453:57:489:5510:10
10:10
#24070
40K
24.85 mi15:30:174:07:209:589:32
11:10
#24091
25.2M
25.20 mi15:34:254:11:289:594:08
12:00
#24094
FINISH
26.22 mi15:45:064:22:0910:0110:41
10:30
#24140
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 mi25137147971479723732(Top 82%)14121(Top 86%)14121(Top 585%)
10K6.21 mi3.10 mi24288+84914389+40814389+40823316(Top 80%)13911(Top 85%)13911(Top 577%)
15K9.32 mi3.11 mi24131+15714317+7214317+7223732(Top 82%)14121(Top 86%)14121(Top 585%)
20K12.43 mi3.11 mi24165-3414336-1914336-1924257(Top 84%)14355(Top 88%)14355(Top 595%)
HALF13.11 mi0.68 mi24168-314337-114337-124389(Top 84%)14398(Top 88%)14398(Top 597%)
25K15.53 mi2.42 mi24174-614313+2414313+2424107(Top 83%)14244(Top 87%)14244(Top 590%)
30K18.64 mi3.11 mi24071+10314243+7014243+7023831(Top 82%)13994(Top 86%)13994(Top 580%)
20M20.00 mi1.36 mi24209-13814295-5214295-5225483(Top 88%)14683(Top 90%)14683(Top 608%)
21M21.00 mi1.00 mi24269-6014308-1314308-1325073(Top 86%)14440(Top 88%)14440(Top 598%)
35K21.75 mi0.75 mi24257+1214293+1514293+1523860(Top 82%)13861(Top 85%)13861(Top 574%)
23M23.00 mi1.25 mi24116+14114199+9414199+9422329(Top 77%)13080(Top 80%)13080(Top 542%)
24M24.00 mi1.00 mi24070+4614162+3714162+3723262(Top 80%)13499(Top 83%)13499(Top 559%)
40K24.85 mi0.85 mi24091-2114157+514157+524524(Top 85%)14028(Top 86%)14028(Top 581%)
25.2M25.20 mi0.35 mi24094-314152+514152+524406(Top 84%)13972(Top 86%)13972(Top 579%)
FINISH26.22 mi1.02 mi24140-4614155-314155-325020(Top 86%)14288(Top 87%)14288(Top 592%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21
+97ft-345ft

Overall

23732

Males

14121

M45-49

14121

5K→10K

3.1 - 6.2 mi

Top 80%
×5
+79ft-138ft

Overall

23316

Males

13911

M45-49

13911

10K→15K

6.2 - 9.3 mi

Top 82%
×3
+67ft-78ft

Overall

23732

Males

14121

M45-49

14121

15K→20K

9.3 - 12.4 mi

Top 84%
×5
+106ft-86ft

Overall

24257

Males

14355

M45-49

14355

20K→HALF

12.4 - 13.1 mi

Top 84%
×2
+19ft-37ft

Overall

24389

Males

14398

M45-49

14398

HALF→25K

13.1 - 15.5 mi

Top 83%
×4
+66ft-88ft

Overall

24107

Males

14244

M45-49

14244

25K→30K

15.5 - 18.6 mi

Top 82%
×9
+181ft-148ft

Overall

23831

Males

13994

M45-49

13994

30K→20M

18.6 - 20.0 mi

Top 88%
×5
+64ft-50ft

Overall

25483

Males

14683

M45-49

14683

20M→21M

20.0 - 21.0 mi

Top 86%
×8
+106ft-24ft

Overall

25073

Males

14440

M45-49

14440

21M→35K

21.0 - 21.8 mi

Top 82%
×7
+17ft-86ft

Overall

23860

Males

13861

M45-49

13861

35K→23M

21.8 - 23.0 mi

Top 77%
×5
+23ft-63ft

Overall

22329

Males

13080

M45-49

13080

23M→24M

23.0 - 24.0 mi

Top 80%
×6
+12ft-82ft

Overall

23262

Males

13499

M45-49

13499

24M→40K

24.0 - 24.9 mi

Top 85%
×1
+6ft-20ft

Overall

24524

Males

14028

M45-49

14028

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1
+13ft-16ft

Overall

24406

Males

13972

M45-49

13972

25.2M→FINISH

25.2 - 26.2 mi

Top 86%
×2
+22ft-21ft

Overall

25020

Males

14288

M45-49

14288

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1951*
Passed By
954
Net Change
+997
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25137
5K → 10K864*15+849#25137#24288
10K → 15K240*83+157#24288#24131
15K → 20K111145-34#24131#24165
20K → HALF2629-3#24165#24168
HALF → 25K106112-6#24168#24174
25K → 30K19491+103#24174#24071
30K → 20M27165-138#24071#24209
20M → 21M41101-60#24209#24269
21M → 35K3624+12#24269#24257
35K → 23M15817+141#24257#24116
23M → 24M6923+46#24116#24070
24M → 40K3657-21#24070#24091
40K → 25.2M1619-3#24091#24094
25.2M → FINISH2773-46#24094#24140
TOTALS1951*954+997

* 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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

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