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BOSTON MARATHON 2026

Kohei Kurose

Bib: 15304•M

NC

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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 (M50-54)
#0 / 1868
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
22:50
3.11 mi
Rank: #11478
Start → 5K
22:50 | 7:21/mi
10K
45:56
6.21 mi
Rank: #11894 (-416)
5K → 10K
23:06 | 7:27/mi
15K
1:09:14
9.32 mi
Rank: #12169 (-275)
10K → 15K
23:18 | 7:30/mi
20K
1:33:06
12.43 mi
Rank: #12521 (-352)
15K → 20K
23:52 | 7:41/mi
HALF
1:38:17
13.11 mi
Rank: #12582 (-61)
20K → HALF
5:11 | 7:37/mi
25K
1:57:23
15.53 mi
Rank: #12894 (-312)
HALF → 25K
19:06 | 7:53/mi
30K
2:23:35
18.64 mi
Rank: #13549 (-655)
25K → 30K
26:12 | 8:26/mi
20M
2:35:29
20.00 mi
Rank: #13877 (-328)
30K → 20M
11:54 | 8:46/mi
21M
2:44:48
21.00 mi
Rank: #14138 (-261)
20M → 21M
9:19 | 9:19/mi
35K
2:51:25
21.75 mi
Rank: #14345 (-207)
21M → 35K
6:37 | 8:51/mi
23M
3:03:39
23.00 mi
Rank: #14998 (-653)
35K → 23M
12:14 | 9:47/mi
24M
3:12:38
24.00 mi
Rank: #15261 (-263)
23M → 24M
8:59 | 8:59/mi
40K
3:19:48
24.85 mi
Rank: #15248 (+13)
24M → 40K
7:10 | 8:23/mi
25.2M
3:23:52
25.20 mi
Rank: #15501 (-253)
40K → 25.2M
4:04 | 11:48/mi
FINISH
3:33:12
26.22 mi
Rank: #15770 (-269)
25.2M → FINISH
9:20 | 9:10/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:38:17
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:54:55
Pace8:46 /mi
📊Positive Split: 16.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:2322:507:2122:50
7:21
-
10K
6.21 mi11:17:2945:567:2423:06
7:27
+0:06
15K
9.32 mi11:40:471:09:147:2623:18
7:30
+0:03
20K
12.43 mi12:04:391:33:067:3023:52
7:41
+0:11
HALF
13.11 mi12:09:501:38:177:305:11
7:37
-0:04
25K
15.53 mi12:28:561:57:237:3419:06
7:53
+0:16
30K
18.64 mi12:55:082:23:357:4326:12
8:26
+0:33
20M
20.00 mi13:07:022:35:297:4711:54
8:46
+0:20
21M
21.00 mi13:16:212:44:487:519:19
9:19
+0:33
35K
21.75 mi13:22:582:51:257:536:37
8:51
-0:28
23M
23.00 mi13:35:123:03:398:0012:14
9:47
+0:56
24M
24.00 mi13:44:113:12:388:028:59
8:59
-0:48
40K
24.85 mi13:51:213:19:488:037:10
8:23
-0:36
25.2M
25.20 mi13:55:253:23:528:064:04
11:48
+3:25
FINISH
26.22 mi14:04:453:33:128:099:20
9:10
-2:38

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

7:21 /mi

Average Pace

8:08 /mi

Slowest Pace

11:48 /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

1:38:17

46% of race

Time at Steady Pace

1:19:58

38% of race

Time at Slower Pace

34:57

16% of race

Average Pace: 8:08 /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 mi10:54:2322:507:2122:50
7:21
#11478
10K
6.21 mi11:17:2945:567:2423:06
7:27
#11894
15K
9.32 mi11:40:471:09:147:2623:18
7:30
#12169
20K
12.43 mi12:04:391:33:067:3023:52
7:41
#12521
HALF
13.11 mi12:09:501:38:177:305:11
7:37
#12582
25K
15.53 mi12:28:561:57:237:3419:06
7:53
#12894
30K
18.64 mi12:55:082:23:357:4326:12
8:26
#13549
20M
20.00 mi13:07:022:35:297:4711:54
8:46
#13877
21M
21.00 mi13:16:212:44:487:519:19
9:19
#14138
35K
21.75 mi13:22:582:51:257:536:37
8:51
#14345
23M
23.00 mi13:35:123:03:398:0012:14
9:47
#14998
24M
24.00 mi13:44:113:12:388:028:59
8:59
#15261
40K
24.85 mi13:51:213:19:488:037:10
8:23
#15248
25.2M
25.20 mi13:55:253:23:528:064:04
11:48
#15501
FINISH
26.22 mi14:04:453:33:128:099:20
9:10
#15770
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi114788811881112798(Top 44%)9302(Top 57%)9302(Top 498%)
10K6.21 mi3.10 mi11894-4168973-1628973-16212399(Top 43%)9153(Top 56%)9153(Top 490%)
15K9.32 mi3.11 mi12169-2759061-889061-8812798(Top 44%)9302(Top 57%)9302(Top 498%)
20K12.43 mi3.11 mi12521-3529189-1289189-12813558(Top 47%)9541(Top 58%)9541(Top 511%)
HALF13.11 mi0.68 mi12582-619210-219210-2113870(Top 48%)9765(Top 60%)9765(Top 523%)
25K15.53 mi2.42 mi12894-3129308-989308-9814412(Top 50%)9837(Top 60%)9837(Top 527%)
30K18.64 mi3.11 mi13549-6559550-2429550-24216451(Top 57%)10605(Top 65%)10605(Top 568%)
20M20.00 mi1.36 mi13877-3289673-1239673-12317715(Top 61%)11049(Top 68%)11049(Top 591%)
21M21.00 mi1.00 mi14138-2619752-799752-7917670(Top 61%)10996(Top 67%)10996(Top 589%)
35K21.75 mi0.75 mi14345-2079828-769828-7619311(Top 67%)11629(Top 71%)11629(Top 623%)
23M23.00 mi1.25 mi14998-65310043-21510043-21521468(Top 74%)12658(Top 77%)12658(Top 678%)
24M24.00 mi1.00 mi15261-26310135-9210135-9219360(Top 67%)11579(Top 71%)11579(Top 620%)
40K24.85 mi0.85 mi15248+1310112+2310112+2314941(Top 51%)9489(Top 58%)9489(Top 508%)
25.2M25.20 mi0.35 mi15501-25310207-9510207-9524031(Top 83%)13770(Top 84%)13770(Top 737%)
FINISH26.22 mi1.02 mi15770-26910295-8810295-8821128(Top 73%)12405(Top 76%)12405(Top 664%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21
+97ft-345ft

Overall

12798

Males

9302

M50-54

9302

5K→10K

3.1 - 6.2 mi

Top 43%
×5
+79ft-138ft

Overall

12399

Males

9153

M50-54

9153

10K→15K

6.2 - 9.3 mi

Top 44%
×3
+67ft-78ft

Overall

12798

Males

9302

M50-54

9302

15K→20K

9.3 - 12.4 mi

Top 47%
×5
+106ft-86ft

Overall

13558

Males

9541

M50-54

9541

20K→HALF

12.4 - 13.1 mi

Top 48%
×2
+19ft-37ft

Overall

13870

Males

9765

M50-54

9765

HALF→25K

13.1 - 15.5 mi

Top 50%
×4
+66ft-88ft

Overall

14412

Males

9837

M50-54

9837

25K→30K

15.5 - 18.6 mi

Top 57%
×9
+181ft-148ft

Overall

16451

Males

10605

M50-54

10605

30K→20M

18.6 - 20.0 mi

Top 61%
×5
+64ft-50ft

Overall

17715

Males

11049

M50-54

11049

20M→21M

20.0 - 21.0 mi

Top 61%
×8
+106ft-24ft

Overall

17670

Males

10996

M50-54

10996

21M→35K

21.0 - 21.8 mi

Top 67%
×7
+17ft-86ft

Overall

19311

Males

11629

M50-54

11629

35K→23M

21.8 - 23.0 mi

Top 74%
×5
+23ft-63ft

Overall

21468

Males

12658

M50-54

12658

23M→24M

23.0 - 24.0 mi

Top 67%
×6
+12ft-82ft

Overall

19360

Males

11579

M50-54

11579

24M→40K

24.0 - 24.9 mi

Top 51%
×1
+6ft-20ft

Overall

14941

Males

9489

M50-54

9489

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1
+13ft-16ft

Overall

24031

Males

13770

M50-54

13770

25.2M→FINISH

25.2 - 26.2 mi

Top 73%
×2
+22ft-21ft

Overall

21128

Males

12405

M50-54

12405

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
659
Passed By
4950
Net Change
-4292
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11478
5K → 10K122537-416#11478#11894
10K → 15K92367-275#11894#12169
15K → 20K71423-352#12169#12521
20K → HALF1273-61#12521#12582
HALF → 25K60372-312#12582#12894
25K → 30K64719-655#12894#13549
30K → 20M44372-328#13549#13877
20M → 21M34295-261#13877#14138
21M → 35K26233-207#14138#14345
35K → 23M14667-653#14345#14998
23M → 24M27290-263#14998#15261
24M → 40K7966+13#15261#15248
40K → 25.2M3256-253#15248#15501
25.2M → FINISH11280-269#15501#15770
TOTALS6594950-4292
📊

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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing