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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Calvin Lehn

Bib: 537 •M •Age: N/A

CO

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 1%
Gender (Male)
#0 / 16340
Top 2%
Age Group (M18-39)
#0 / 5723
Top 6%
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
16:27
3.11 mi
Rank: #103
Start → 5K
16:27 | 5:18/mi
10K
33:18
6.21 mi
Rank: #113 (-10)
5K → 10K
16:51 | 5:26/mi
15K
50:11
9.32 mi
Rank: #122 (-9)
10K → 15K
16:53 | 5:27/mi
20K
1:07:17
12.43 mi
Rank: #128 (-6)
15K → 20K
17:06 | 5:31/mi
HALF
1:11:04
13.11 mi
Rank: #146 (-18)
20K → HALF
3:47 | 5:34/mi
25K
1:24:38
15.53 mi
Rank: #155 (-9)
HALF → 25K
13:34 | 5:36/mi
30K
1:42:35
18.64 mi
Rank: #166 (-11)
25K → 30K
17:57 | 5:47/mi
20M
1:50:42
20.00 mi
Rank: #177 (-11)
30K → 20M
8:07 | 5:59/mi
21M
1:57:14
21.00 mi
Rank: #201 (-24)
20M → 21M
6:32 | 6:32/mi
35K
2:01:41
21.75 mi
Rank: #212 (-11)
21M → 35K
4:27 | 5:57/mi
23M
2:10:00
23.00 mi
Rank: #253 (-41)
35K → 23M
8:19 | 6:39/mi
24M
2:16:33
24.00 mi
Rank: #303 (-50)
23M → 24M
6:33 | 6:33/mi
40K
2:22:18
24.85 mi
Rank: #342 (-39)
24M → 40K
5:45 | 6:44/mi
25.2M
2:24:42
25.20 mi
Rank: #358 (-16)
40K → 25.2M
2:24 | 6:58/mi
FINISH
2:30:56
26.22 mi
Rank: #371 (-13)
25.2M → FINISH
6:14 | 6:08/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:11:04
Pace5:26 /mi
2nd Half
Distance13.11 mi
Time1:19:52
Pace6:06 /mi
📊Positive Split: 12.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:16:3316:275:1816:27
5:18
-
10K
6.21 mi10:33:2433:185:2216:51
5:26
+0:08
15K
9.32 mi10:50:1750:115:2416:53
5:27
+0:01
20K
12.43 mi11:07:231:07:175:2517:06
5:31
+0:04
HALF
13.11 mi11:11:101:11:045:263:47
5:34
+0:03
25K
15.53 mi11:24:441:24:385:2713:34
5:36
+0:02
30K
18.64 mi11:42:411:42:355:3117:57
5:47
+0:11
20M
20.00 mi11:50:481:50:425:338:07
5:59
+0:12
21M
21.00 mi11:57:201:57:145:356:32
6:32
+0:33
35K
21.75 mi12:01:472:01:415:364:27
5:57
-0:35
23M
23.00 mi12:10:062:10:005:408:19
6:39
+0:42
24M
24.00 mi12:16:392:16:335:426:33
6:33
-0:06
40K
24.85 mi12:22:242:22:185:445:45
6:44
+0:11
25.2M
25.20 mi12:24:482:24:425:452:24
6:58
+0:14
FINISH
26.22 mi12:31:022:30:565:466:14
6:08
-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

5:18 /mi

Average Pace

5:46 /mi

Slowest Pace

6:58 /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

1:24:38

56% of race

Time at Steady Pace

36:45

24% of race

Time at Slower Pace

29:33

20% of race

Average Pace: 5:45 /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 mi10:16:3316:275:1816:27
5:18
#103
10K
6.21 mi10:33:2433:185:2216:51
5:26
#113
15K
9.32 mi10:50:1750:115:2416:53
5:27
#122
20K
12.43 mi11:07:231:07:175:2517:06
5:31
#128
HALF
13.11 mi11:11:101:11:045:263:47
5:34
#146
25K
15.53 mi11:24:441:24:385:2713:34
5:36
#155
30K
18.64 mi11:42:411:42:355:3117:57
5:47
#166
20M
20.00 mi11:50:481:50:425:338:07
5:59
#177
21M
21.00 mi11:57:201:57:145:356:32
6:32
#201
35K
21.75 mi12:01:472:01:415:364:27
5:57
#212
23M
23.00 mi12:10:062:10:005:408:19
6:39
#253
24M
24.00 mi12:16:392:16:335:426:33
6:33
#303
40K
24.85 mi12:22:242:22:185:445:45
6:44
#342
25.2M
25.20 mi12:24:482:24:425:452:24
6:58
#358
FINISH
26.22 mi12:31:022:30:565:466:14
6:08
#371
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 mi103103103137(Top 0.5%)137(Top 0.8%)137(Top 2%)
10K6.21 mi3.10 mi113-10113-10113-10165(Top 0.6%)146(Top 0.9%)146(Top 3%)
15K9.32 mi3.11 mi122-9122-9122-9137(Top 0.5%)137(Top 0.8%)137(Top 2%)
20K12.43 mi3.11 mi128-6128-6128-6176(Top 0.6%)159(Top 1.0%)159(Top 3%)
HALF13.11 mi0.68 mi146-18130-2130-2304(Top 1%)285(Top 2%)285(Top 5%)
25K15.53 mi2.42 mi155-9138-8138-8229(Top 0.8%)211(Top 1%)211(Top 4%)
30K18.64 mi3.11 mi166-11149-11149-11333(Top 1%)314(Top 2%)314(Top 5%)
20M20.00 mi1.36 mi177-11159-10159-10591(Top 2%)566(Top 3%)566(Top 10%)
21M21.00 mi1.00 mi201-24183-24183-241413(Top 5%)1351(Top 8%)1351(Top 24%)
35K21.75 mi0.75 mi212-11194-11194-111060(Top 4%)1018(Top 6%)1018(Top 18%)
23M23.00 mi1.25 mi253-41234-40234-403205(Top 11%)2942(Top 18%)2942(Top 51%)
24M24.00 mi1.00 mi303-50283-49283-493488(Top 12%)3151(Top 19%)3151(Top 55%)
40K24.85 mi0.85 mi342-39321-38321-383809(Top 13%)3363(Top 21%)3363(Top 59%)
25.2M25.20 mi0.35 mi358-16338-17338-172554(Top 9%)2318(Top 14%)2318(Top 41%)
FINISH26.22 mi1.02 mi371-13351-13351-132146(Top 7%)1971(Top 12%)1971(Top 34%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.5%
×21
+97ft-345ft

Overall

137

Males

137

M18-39

137

5K→10K

3.1 - 6.2 mi

Top 0.6%
×5
+79ft-138ft

Overall

165

Males

146

M18-39

146

10K→15K

6.2 - 9.3 mi

Top 0.5%
×3
+67ft-78ft

Overall

137

Males

137

M18-39

137

15K→20K

9.3 - 12.4 mi

Top 0.6%
×5
+106ft-86ft

Overall

176

Males

159

M18-39

159

20K→HALF

12.4 - 13.1 mi

Top 1%
×2
+19ft-37ft

Overall

304

Males

285

M18-39

285

HALF→25K

13.1 - 15.5 mi

Top 0.8%
×4
+66ft-88ft

Overall

229

Males

211

M18-39

211

25K→30K

15.5 - 18.6 mi

Top 1%
×9
+181ft-148ft

Overall

333

Males

314

M18-39

314

30K→20M

18.6 - 20.0 mi

Top 2%
×5
+64ft-50ft

Overall

591

Males

566

M18-39

566

20M→21M

20.0 - 21.0 mi

Top 5%
×8
+106ft-24ft

Overall

1413

Males

1351

M18-39

1351

21M→35K

21.0 - 21.8 mi

Top 4%
×7
+17ft-86ft

Overall

1060

Males

1018

M18-39

1018

35K→23M

21.8 - 23.0 mi

Top 11%
×5
+23ft-63ft

Overall

3205

Males

2942

M18-39

2942

23M→24M

23.0 - 24.0 mi

Top 12%
×6
+12ft-82ft

Overall

3488

Males

3151

M18-39

3151

24M→40K

24.0 - 24.9 mi

Top 13%
×1
+6ft-20ft

Overall

3809

Males

3363

M18-39

3363

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1
+13ft-16ft

Overall

2554

Males

2318

M18-39

2318

25.2M→FINISH

25.2 - 26.2 mi

Top 7%
×2
+22ft-21ft

Overall

2146

Males

1971

M18-39

1971

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
24
Passed By
292
Net Change
-268
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#103
5K → 10K212-10#103#113
10K → 15K312-9#113#122
15K → 20K28-6#122#128
20K → HALF018-18#128#146
HALF → 25K211-9#146#155
25K → 30K617-11#155#166
30K → 20M011-11#166#177
20M → 21M024-24#177#201
21M → 35K213-11#201#212
35K → 23M142-41#212#253
23M → 24M050-50#253#303
24M → 40K039-39#303#342
40K → 25.2M218-16#342#358
25.2M → FINISH417-13#358#371
TOTALS24292-268
📊

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

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