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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Lammert Korsten

Bib: 18308 β€’M β€’Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 44%
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Top 46%
Age Group (M55-59)
#0 / 1491
Top 35%
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
23:54
3.11 mi
Rank: #14461
Start β†’ 5K
23:54 | 7:42/mi
10K
47:34
6.21 mi
Rank: #14212 (+249)
5K β†’ 10K
23:40 | 7:38/mi
15K
1:10:57
9.32 mi
Rank: #13770 (+442)
10K β†’ 15K
23:23 | 7:32/mi
20K
1:34:21
12.43 mi
Rank: #13365 (+405)
15K β†’ 20K
23:24 | 7:32/mi
HALF
1:39:27
13.11 mi
Rank: #13343 (+22)
20K β†’ HALF
5:06 | 7:29/mi
25K
1:57:56
15.53 mi
Rank: #13169 (+174)
HALF β†’ 25K
18:29 | 7:38/mi
30K
2:22:23
18.64 mi
Rank: #13026 (+143)
25K β†’ 30K
24:27 | 7:53/mi
20M
2:33:16
20.00 mi
Rank: #12985 (+41)
30K β†’ 20M
10:53 | 8:01/mi
21M
2:41:35
21.00 mi
Rank: #12903 (+82)
20M β†’ 21M
8:19 | 8:19/mi
35K
2:47:20
21.75 mi
Rank: #12869 (+34)
21M β†’ 35K
5:45 | 7:42/mi
23M
2:57:16
23.00 mi
Rank: #12785 (+84)
35K β†’ 23M
9:56 | 7:57/mi
24M
3:05:05
24.00 mi
Rank: #12759 (+26)
23M β†’ 24M
7:49 | 7:49/mi
40K
3:11:59
24.85 mi
Rank: #12743 (+16)
24M β†’ 40K
6:54 | 8:05/mi
25.2M
3:14:57
25.20 mi
Rank: #12717 (+26)
40K β†’ 25.2M
2:58 | 8:37/mi
FINISH
3:22:59
26.22 mi
Rank: #12755 (-38)
25.2M β†’ FINISH
8:02 | 7:53/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:39:27
Pace7:36 /mi
2nd Half
Distance13.11 mi
Time1:43:32
Pace7:54 /mi
πŸ“ŠPositive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:07:1023:547:4223:54
7:42
-
10K
6.21 mi11:30:5047:347:4023:40
7:38
-0:04
15K
9.32 mi11:54:131:10:577:3723:23
7:32
-0:06
20K
12.43 mi12:17:371:34:217:3623:24
7:32
0:00
HALF
13.11 mi12:22:431:39:277:365:06
7:29
-0:03
25K
15.53 mi12:41:121:57:567:3618:29
7:38
+0:09
30K
18.64 mi13:05:392:22:237:3924:27
7:53
+0:15
20M
20.00 mi13:16:322:33:167:4010:53
8:01
+0:08
21M
21.00 mi13:24:512:41:357:428:19
8:19
+0:18
35K
21.75 mi13:30:362:47:207:425:45
7:42
-0:37
23M
23.00 mi13:40:322:57:167:439:56
7:57
+0:15
24M
24.00 mi13:48:213:05:057:437:49
7:49
-0:08
40K
24.85 mi13:55:153:11:597:446:54
8:05
+0:16
25.2M
25.20 mi13:58:133:14:577:452:58
8:37
+0:32
FINISH
26.22 mi14:06:153:22:597:458:02
7:53
-0:44

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

7:29 /mi

Average Pace

7:45 /mi

Slowest Pace

8:37 /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

3:11:42

94% of race

Time at Steady Pace

11:17

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:44 /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 mi11:07:1023:547:4223:54
7:42
#14461
10K
6.21 mi11:30:5047:347:4023:40
7:38
#14212
15K
9.32 mi11:54:131:10:577:3723:23
7:32
#13770
20K
12.43 mi12:17:371:34:217:3623:24
7:32
#13365
HALF
13.11 mi12:22:431:39:277:365:06
7:29
#13343
25K
15.53 mi12:41:121:57:567:3618:29
7:38
#13169
30K
18.64 mi13:05:392:22:237:3924:27
7:53
#13026
20M
20.00 mi13:16:322:33:167:4010:53
8:01
#12985
21M
21.00 mi13:24:512:41:357:428:19
8:19
#12903
35K
21.75 mi13:30:362:47:207:425:45
7:42
#12869
23M
23.00 mi13:40:322:57:167:439:56
7:57
#12785
24M
24.00 mi13:48:213:05:057:437:49
7:49
#12759
40K
24.85 mi13:55:153:11:597:446:54
8:05
#12743
25.2M
25.20 mi13:58:133:14:577:452:58
8:37
#12717
FINISH
26.22 mi14:06:153:22:597:458:02
7:53
#12755
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi14461100591005913033(Top 45%)9382(Top 57%)9382(Top 629%)
10K6.21 mi3.10 mi14212+2499928+1319928+13114009(Top 48%)9839(Top 60%)9839(Top 660%)
15K9.32 mi3.11 mi13770+4429732+1969732+19613033(Top 45%)9382(Top 57%)9382(Top 629%)
20K12.43 mi3.11 mi13365+4059529+2039529+20312249(Top 42%)8960(Top 55%)8960(Top 601%)
HALF13.11 mi0.68 mi13343+229522+79522+712814(Top 44%)9283(Top 57%)9283(Top 623%)
25K15.53 mi2.42 mi13169+1749427+959427+9512414(Top 43%)8974(Top 55%)8974(Top 602%)
30K18.64 mi3.11 mi13026+1439313+1149313+11412491(Top 43%)8875(Top 54%)8875(Top 595%)
20M20.00 mi1.36 mi12985+419263+509263+5012899(Top 44%)8967(Top 55%)8967(Top 601%)
21M21.00 mi1.00 mi12903+829203+609203+6011952(Top 41%)8410(Top 51%)8410(Top 564%)
35K21.75 mi0.75 mi12869+349184+199184+1912184(Top 42%)8523(Top 52%)8523(Top 572%)
23M23.00 mi1.25 mi12785+849133+519133+5112021(Top 41%)8375(Top 51%)8375(Top 562%)
24M24.00 mi1.00 mi12759+269099+349099+3412411(Top 43%)8431(Top 52%)8431(Top 565%)
40K24.85 mi0.85 mi12743+169066+339066+3312944(Top 45%)8599(Top 53%)8599(Top 577%)
25.2M25.20 mi0.35 mi12717+269041+259041+2512234(Top 42%)8216(Top 50%)8216(Top 551%)
FINISH26.22 mi1.02 mi12755-389030+119030+1114343(Top 49%)9195(Top 56%)9195(Top 617%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
Γ—21
+97ft-345ft

Overall

13033

Males

9382

M55-59

9382

5K→10K

3.1 - 6.2 mi

Top 48%
Γ—5
+79ft-138ft

Overall

14009

Males

9839

M55-59

9839

10K→15K

6.2 - 9.3 mi

Top 45%
Γ—3
+67ft-78ft

Overall

13033

Males

9382

M55-59

9382

15K→20K

9.3 - 12.4 mi

Top 42%
Γ—5
+106ft-86ft

Overall

12249

Males

8960

M55-59

8960

20K→HALF

12.4 - 13.1 mi

Top 44%
Γ—2
+19ft-37ft

Overall

12814

Males

9283

M55-59

9283

HALF→25K

13.1 - 15.5 mi

Top 43%
Γ—4
+66ft-88ft

Overall

12414

Males

8974

M55-59

8974

25K→30K

15.5 - 18.6 mi

Top 43%
Γ—9
+181ft-148ft

Overall

12491

Males

8875

M55-59

8875

30K→20M

18.6 - 20.0 mi

Top 44%
Γ—5
+64ft-50ft

Overall

12899

Males

8967

M55-59

8967

20M→21M

20.0 - 21.0 mi

Top 41%
Γ—8
+106ft-24ft

Overall

11952

Males

8410

M55-59

8410

21M→35K

21.0 - 21.8 mi

Top 42%
Γ—7
+17ft-86ft

Overall

12184

Males

8523

M55-59

8523

35K→23M

21.8 - 23.0 mi

Top 41%
Γ—5
+23ft-63ft

Overall

12021

Males

8375

M55-59

8375

23M→24M

23.0 - 24.0 mi

Top 43%
Γ—6
+12ft-82ft

Overall

12411

Males

8431

M55-59

8431

24M→40K

24.0 - 24.9 mi

Top 45%
Γ—1
+6ft-20ft

Overall

12944

Males

8599

M55-59

8599

40K→25.2M

24.9 - 25.2 mi

Top 42%
Γ—1
+13ft-16ft

Overall

12234

Males

8216

M55-59

8216

25.2M→FINISH

25.2 - 26.2 mi

Top 49%
Γ—2
+22ft-21ft

Overall

14343

Males

9195

M55-59

9195

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2566*
Passed By
860
Net Change
+1706
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#14461
5K β†’ 10K440*191+249#14461#14212
10K β†’ 15K489*47+442#14212#13770
15K β†’ 20K429*24+405#13770#13365
20K β†’ HALF4018+22#13365#13343
HALF β†’ 25K209*35+174#13343#13169
25K β†’ 30K252*109+143#13169#13026
30K β†’ 20M11877+41#13026#12985
20M β†’ 21M12846+82#12985#12903
21M β†’ 35K6733+34#12903#12869
35K β†’ 23M13046+84#12869#12785
23M β†’ 24M8357+26#12785#12759
24M β†’ 40K7660+16#12759#12743
40K β†’ 25.2M4317+26#12743#12717
25.2M β†’ FINISH62100-38#12717#12755
TOTALS2566*860+1706

* Includes athletes who did not complete a segment (DNF/DNQ).

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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