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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Sam Clasen

Bib: 4385 β€’M β€’Age: N/A

MN

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 7%
Gender (Male)
#0 / 16340
Top 11%
Age Group (M18-39)
#0 / 5723
Top 27%
Race Day Weather
51Β°/41Β°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
19:09
3.11 mi
Rank: #1922
Start β†’ 5K
19:09 | 6:10/mi
10K
38:12
6.21 mi
Rank: #1911 (+11)
5K β†’ 10K
19:03 | 6:08/mi
15K
57:32
9.32 mi
Rank: #2073 (-162)
10K β†’ 15K
19:20 | 6:14/mi
20K
1:17:14
12.43 mi
Rank: #2214 (-141)
15K β†’ 20K
19:42 | 6:21/mi
HALF
1:21:30
13.11 mi
Rank: #2232 (-18)
20K β†’ HALF
4:16 | 6:16/mi
25K
1:36:56
15.53 mi
Rank: #2268 (-36)
HALF β†’ 25K
15:26 | 6:22/mi
30K
1:56:45
18.64 mi
Rank: #2205 (+63)
25K β†’ 30K
19:49 | 6:23/mi
20M
2:05:29
20.00 mi
Rank: #2171 (+34)
30K β†’ 20M
8:44 | 6:26/mi
21M
2:12:05
21.00 mi
Rank: #2105 (+66)
20M β†’ 21M
6:36 | 6:36/mi
35K
2:16:38
21.75 mi
Rank: #2062 (+43)
21M β†’ 35K
4:33 | 6:05/mi
23M
2:24:33
23.00 mi
Rank: #2007 (+55)
35K β†’ 23M
7:55 | 6:20/mi
24M
2:30:51
24.00 mi
Rank: #1980 (+27)
23M β†’ 24M
6:18 | 6:18/mi
40K
2:36:15
24.85 mi
Rank: #1949 (+31)
24M β†’ 40K
5:24 | 6:19/mi
25.2M
2:38:36
25.20 mi
Rank: #1945 (+4)
40K β†’ 25.2M
2:21 | 6:49/mi
FINISH
2:44:48
26.22 mi
Rank: #1931 (+14)
25.2M β†’ FINISH
6:12 | 6:06/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:21:30
Pace6:14 /mi
2nd Half
Distance13.11 mi
Time1:23:18
Pace6:22 /mi
πŸ“ŠPositive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:4819:096:1019:09
6:10
-
10K
6.21 mi10:40:5138:126:0919:03
6:08
-0:02
15K
9.32 mi11:00:1157:326:1119:20
6:14
+0:06
20K
12.43 mi11:19:531:17:146:1319:42
6:21
+0:07
HALF
13.11 mi11:24:091:21:306:144:16
6:16
-0:05
25K
15.53 mi11:39:351:36:566:1515:26
6:22
+0:06
30K
18.64 mi11:59:241:56:456:1619:49
6:23
+0:01
20M
20.00 mi12:08:082:05:296:178:44
6:26
+0:03
21M
21.00 mi12:14:442:12:056:186:36
6:36
+0:10
35K
21.75 mi12:19:172:16:386:174:33
6:05
-0:31
23M
23.00 mi12:27:122:24:336:187:55
6:20
+0:15
24M
24.00 mi12:33:302:30:516:186:18
6:18
-0:02
40K
24.85 mi12:38:542:36:156:185:24
6:19
+0:01
25.2M
25.20 mi12:41:152:38:366:182:21
6:49
+0:30
FINISH
26.22 mi12:47:272:44:486:186:12
6:06
-0:43

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace 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

6:05 /mi

Average Pace

6:17 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

2:42:27

99% of race

Time at Steady Pace

2:21

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:17 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi10:21:4819:096:1019:09
6:10
#1922
10K
6.21 mi10:40:5138:126:0919:03
6:08
#1911
15K
9.32 mi11:00:1157:326:1119:20
6:14
#2073
20K
12.43 mi11:19:531:17:146:1319:42
6:21
#2214
HALF
13.11 mi11:24:091:21:306:144:16
6:16
#2232
25K
15.53 mi11:39:351:36:566:1515:26
6:22
#2268
30K
18.64 mi11:59:241:56:456:1619:49
6:23
#2205
20M
20.00 mi12:08:082:05:296:178:44
6:26
#2171
21M
21.00 mi12:14:442:12:056:186:36
6:36
#2105
35K
21.75 mi12:19:172:16:386:174:33
6:05
#2062
23M
23.00 mi12:27:122:24:336:187:55
6:20
#2007
24M
24.00 mi12:33:302:30:516:186:18
6:18
#1980
40K
24.85 mi12:38:542:36:156:185:24
6:19
#1949
25.2M
25.20 mi12:41:152:38:366:182:21
6:49
#1945
FINISH
26.22 mi12:47:272:44:486:186:12
6:06
#1931
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1922185318532412(Top 8%)2323(Top 14%)2323(Top 41%)
10K6.21 mi3.10 mi1911+111843+101843+101937(Top 7%)1869(Top 11%)1869(Top 33%)
15K9.32 mi3.11 mi2073-1621999-1561999-1562412(Top 8%)2323(Top 14%)2323(Top 41%)
20K12.43 mi3.11 mi2214-1412136-1372136-1372781(Top 10%)2673(Top 16%)2673(Top 47%)
HALF13.11 mi0.68 mi2232-182154-182154-182763(Top 10%)2657(Top 16%)2657(Top 46%)
25K15.53 mi2.42 mi2268-362189-352189-352678(Top 9%)2572(Top 16%)2572(Top 45%)
30K18.64 mi3.11 mi2205+632126+632126+632002(Top 7%)1920(Top 12%)1920(Top 34%)
20M20.00 mi1.36 mi2171+342094+322094+322062(Top 7%)1966(Top 12%)1966(Top 34%)
21M21.00 mi1.00 mi2105+662028+662028+661618(Top 6%)1550(Top 9%)1550(Top 27%)
35K21.75 mi0.75 mi2062+431986+421986+421529(Top 5%)1463(Top 9%)1463(Top 26%)
23M23.00 mi1.25 mi2007+551930+561930+561662(Top 6%)1584(Top 10%)1584(Top 28%)
24M24.00 mi1.00 mi1980+271903+271903+272183(Top 8%)2046(Top 13%)2046(Top 36%)
40K24.85 mi0.85 mi1949+311872+311872+311795(Top 6%)1688(Top 10%)1688(Top 29%)
25.2M25.20 mi0.35 mi1945+41868+41868+41884(Top 6%)1750(Top 11%)1750(Top 31%)
FINISH26.22 mi1.02 mi1931+141855+131855+131963(Top 7%)1819(Top 11%)1819(Top 32%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
Γ—21
+97ft-345ft

Overall

2412

Males

2323

M18-39

2323

5K→10K

3.1 - 6.2 mi

Top 7%
Γ—5
+79ft-138ft

Overall

1937

Males

1869

M18-39

1869

10K→15K

6.2 - 9.3 mi

Top 8%
Γ—3
+67ft-78ft

Overall

2412

Males

2323

M18-39

2323

15K→20K

9.3 - 12.4 mi

Top 10%
Γ—5
+106ft-86ft

Overall

2781

Males

2673

M18-39

2673

20K→HALF

12.4 - 13.1 mi

Top 10%
Γ—2
+19ft-37ft

Overall

2763

Males

2657

M18-39

2657

HALF→25K

13.1 - 15.5 mi

Top 9%
Γ—4
+66ft-88ft

Overall

2678

Males

2572

M18-39

2572

25K→30K

15.5 - 18.6 mi

Top 7%
Γ—9
+181ft-148ft

Overall

2002

Males

1920

M18-39

1920

30K→20M

18.6 - 20.0 mi

Top 7%
Γ—5
+64ft-50ft

Overall

2062

Males

1966

M18-39

1966

20M→21M

20.0 - 21.0 mi

Top 6%
Γ—8
+106ft-24ft

Overall

1618

Males

1550

M18-39

1550

21M→35K

21.0 - 21.8 mi

Top 5%
Γ—7
+17ft-86ft

Overall

1529

Males

1463

M18-39

1463

35K→23M

21.8 - 23.0 mi

Top 6%
Γ—5
+23ft-63ft

Overall

1662

Males

1584

M18-39

1584

23M→24M

23.0 - 24.0 mi

Top 8%
Γ—6
+12ft-82ft

Overall

2183

Males

2046

M18-39

2046

24M→40K

24.0 - 24.9 mi

Top 6%
Γ—1
+6ft-20ft

Overall

1795

Males

1688

M18-39

1688

40K→25.2M

24.9 - 25.2 mi

Top 6%
Γ—1
+13ft-16ft

Overall

1884

Males

1750

M18-39

1750

25.2M→FINISH

25.2 - 26.2 mi

Top 7%
Γ—2
+22ft-21ft

Overall

1963

Males

1819

M18-39

1819

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
659
Passed By
668
Net Change
-9
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#1922
5K β†’ 10K10291+11#1922#1911
10K β†’ 15K22184-162#1911#2073
15K β†’ 20K19160-141#2073#2214
20K β†’ HALF523-18#2214#2232
HALF β†’ 25K3268-36#2232#2268
25K β†’ 30K9835+63#2268#2205
30K β†’ 20M5319+34#2205#2171
20M β†’ 21M7610+66#2171#2105
21M β†’ 35K463+43#2105#2062
35K β†’ 23M6813+55#2062#2007
23M β†’ 24M3912+27#2007#1980
24M β†’ 40K4716+31#1980#1949
40K β†’ 25.2M1410+4#1949#1945
25.2M β†’ FINISH3824+14#1945#1931
TOTALS659668-9
πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Qualifying & Age Grade

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OTQ

Olympic Trials Qualifying analysis available

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