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BOSTON MARATHON 2025

Tetsuya Kamei

Bib: 24960•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M75-79)
#0 / 52
Top 35%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:50
Rank: #20682
Start → 5K
26:50 | 8:38/mi
10K· 6.21 mi
1:00:58
Rank: #25000 (-4318)
5K → 10K
34:08 | 10:59/mi
15K· 9.32 mi
1:29:09
Rank: #24213 (+787)
10K → 15K
28:11 | 9:04/mi
20K· 12.43 mi
1:59:36
Rank: #24089 (+124)
15K → 20K
30:27 | 9:48/mi
Half· 13.11 mi
2:06:07
Rank: #24063 (+26)
20K → Half
6:31 | 9:33/mi
25K· 15.53 mi
2:31:10
Rank: #24057 (+6)
Half → 25K
25:03 | 10:20/mi
30K· 18.64 mi
3:08:23
Rank: #24463 (-406)
25K → 30K
37:13 | 11:59/mi
20M
3:23:14
Rank: #24394 (+69)
30K → 20M
14:51 | 10:56/mi
21M
3:36:19
Rank: #24463 (-69)
20M → 21M
13:05 | 13:05/mi
35K· 21.75 mi
3:44:44
Rank: #24484 (-21)
21M → 35K
8:25 | 11:15/mi
23M
3:58:17
Rank: #24390 (+94)
35K → 23M
13:33 | 10:49/mi
24M
4:08:07
Rank: #24252 (+138)
23M → 24M
9:50 | 9:50/mi
40K· 24.85 mi
4:16:58
Rank: #24180 (+72)
24M → 40K
8:51 | 10:21/mi
25.2M
4:20:56
Rank: #24151 (+29)
40K → 25.2M
3:58 | 11:30/mi
Finish· 26.22 mi
4:30:39
Rank: #24085 (+66)
25.2M → Finish
9:43 | 9:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:07
Pace9:37 /mi
2nd Half
Distance13.11 mi
Time2:24:32
Pace11:02 /mi
📊Positive Split: 14.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:1026:508:3826:50
8:38
-
10K
6.21 mi12:00:181:00:589:4934:08
10:59
+2:21
15K
9.32 mi12:28:291:29:099:3428:11
9:04
-1:55
20K
12.43 mi12:58:561:59:369:3730:27
9:48
+0:44
Half
13.11 mi13:05:272:06:079:376:31
9:33
-0:15
25K
15.53 mi13:30:302:31:109:4425:03
10:20
+0:47
30K
18.64 mi14:07:433:08:2310:0637:13
11:59
+1:39
20M
20.00 mi14:22:343:23:1410:1014:51
10:56
-1:03
21M
21.00 mi14:35:393:36:1910:1813:05
13:05
+2:09
35K
21.75 mi14:44:043:44:4410:208:25
11:15
-1:50
23M
23.00 mi14:57:373:58:1710:2213:33
10:49
-0:26
24M
24.00 mi15:07:274:08:0710:209:50
9:50
-0:59
40K
24.85 mi15:16:184:16:5810:208:51
10:21
+0:31
25.2M
25.20 mi15:20:164:20:5610:213:58
11:30
+1:09
Finish
26.22 mi15:29:594:30:3910:209:43
9:32
-1:58

Checkpoints & Pacing

📈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

8:38 /mi

Average Pace

10:20 /mi

Slowest Pace

13:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:11:15

26% of race

Time at Steady Pace

1:27:44

32% of race

Time at Slower Pace

1:51:40

41% of race

Average Pace: 10:19 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:26:1026:508:3826:50
8:38
#20682
10K
6.21 mi12:00:181:00:589:4934:08
10:59
#25000
15K
9.32 mi12:28:291:29:099:3428:11
9:04
#24213
20K
12.43 mi12:58:561:59:369:3730:27
9:48
#24089
Half
13.11 mi13:05:272:06:079:376:31
9:33
#24063
25K
15.53 mi13:30:302:31:109:4425:03
10:20
#24057
30K
18.64 mi14:07:433:08:2310:0637:13
11:59
#24463
20M
20.00 mi14:22:343:23:1410:1014:51
10:56
#24394
21M
21.00 mi14:35:393:36:1910:1813:05
13:05
#24463
35K
21.75 mi14:44:043:44:4410:208:25
11:15
#24484
23M
23.00 mi14:57:373:58:1710:2213:33
10:49
#24390
24M
24.00 mi15:07:274:08:0710:209:50
9:50
#24252
40K
24.85 mi15:16:184:16:5810:208:51
10:21
#24180
25.2M
25.20 mi15:20:164:20:5610:213:58
11:30
#24151
Finish
26.22 mi15:29:594:30:3910:209:43
9:32
#24085
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM75-79Seg. OverallSeg. MalesSeg. M75-79
5K3.11 mi3.11 mi20682127251272522334(Top 79%)13528(Top 84%)13528(Top 26015%)
10K6.21 mi3.10 mi25000-431814705-198014705-198027048(Top 95%)15581(Top 97%)15581(Top 29963%)
15K9.32 mi3.11 mi24213+78714354+35114354+35122334(Top 79%)13528(Top 84%)13528(Top 26015%)
20K12.43 mi3.11 mi24089+12414289+6514289+6523762(Top 84%)14120(Top 88%)14120(Top 27154%)
Half13.11 mi0.68 mi24063+2614277+1214277+1223695(Top 83%)14098(Top 88%)14098(Top 27112%)
25K15.53 mi2.42 mi24057+614253+2414253+2424019(Top 85%)14206(Top 88%)14206(Top 27319%)
30K18.64 mi3.11 mi24463-40614418-16514418-16525568(Top 90%)14791(Top 92%)14791(Top 28444%)
20M20.00 mi1.36 mi24394+6914375+4314375+4323447(Top 83%)13736(Top 85%)13736(Top 26415%)
21M21.00 mi1.00 mi24463-6914390-1514390-1525156(Top 89%)14450(Top 90%)14450(Top 27788%)
35K21.75 mi0.75 mi24484-2114388+214388+224691(Top 87%)14208(Top 88%)14208(Top 27323%)
23M23.00 mi1.25 mi24390+9414328+6014328+6022797(Top 80%)13248(Top 82%)13248(Top 25477%)
24M24.00 mi1.00 mi24252+13814257+7114257+7120841(Top 73%)12272(Top 76%)12272(Top 23600%)
40K24.85 mi0.85 mi24180+7214198+5914198+5921532(Top 76%)12536(Top 78%)12536(Top 24108%)
25.2M25.20 mi0.35 mi24151+2914177+2114177+2122044(Top 78%)12819(Top 80%)12819(Top 24652%)
Finish26.22 mi1.02 mi24085+6614143+3414143+3421295(Top 75%)12436(Top 77%)12436(Top 23915%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21stories
+97ft-345ft

Overall

22334

Males

13528

M75-79

13528

5K→10K

3.1 - 6.2 mi

Top 95%
×5stories
+79ft-138ft

Overall

27048

Males

15581

M75-79

15581

10K→15K

6.2 - 9.3 mi

Top 79%
×3stories
+67ft-78ft

Overall

22334

Males

13528

M75-79

13528

15K→20K

9.3 - 12.4 mi

Top 84%
×5stories
+106ft-86ft

Overall

23762

Males

14120

M75-79

14120

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

23695

Males

14098

M75-79

14098

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

24019

Males

14206

M75-79

14206

25K→30K

15.5 - 18.6 mi

Top 90%
×9stories
+181ft-148ft

Overall

25568

Males

14791

M75-79

14791

30K→20M

18.6 - 20.0 mi

Top 83%
×5stories
+64ft-50ft

Overall

23447

Males

13736

M75-79

13736

20M→21M

20.0 - 21.0 mi

Top 89%
×8stories
+106ft-24ft

Overall

25156

Males

14450

M75-79

14450

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

24691

Males

14208

M75-79

14208

35K→23M

21.8 - 23.0 mi

Top 80%
×5stories
+23ft-63ft

Overall

22797

Males

13248

M75-79

13248

23M→24M

23.0 - 24.0 mi

Top 73%
×6stories
+12ft-82ft

Overall

20841

Males

12272

M75-79

12272

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21532

Males

12536

M75-79

12536

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22044

Males

12819

M75-79

12819

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2stories
+22ft-21ft

Overall

21295

Males

12436

M75-79

12436

Passing Analysis

Category:
Athletes Passed
1792
Passed By
5195
Net Change
-3403
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20682
5K → 10K24320-4318#20682#25000
10K → 15K7892+787#25000#24213
15K → 20K19470+124#24213#24089
20K → Half4014+26#24089#24063
Half → 25K124118+6#24063#24057
25K → 30K39445-406#24057#24463
30K → 20M9930+69#24463#24394
20M → 21M39108-69#24394#24463
21M → 35K2344-21#24463#24484
35K → 23M11117+94#24484#24390
23M → 24M1402+138#24390#24252
24M → 40K8311+72#24252#24180
40K → 25.2M345+29#24180#24151
25.2M → Finish759+66#24151#24085
TOTALS17925195-3403
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing