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BOSTON MARATHON 2025

Gen Kaneko

Bib: 3155•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:19
Rank: #4106
Start → 5K
20:19 | 6:32/mi
10K· 6.21 mi
40:55
Rank: #4365 (-259)
5K → 10K
20:36 | 6:38/mi
15K· 9.32 mi
1:01:54
Rank: #4714 (-349)
10K → 15K
20:59 | 6:45/mi
20K· 12.43 mi
1:24:01
Rank: #5572 (-858)
15K → 20K
22:07 | 7:07/mi
Half· 13.11 mi
1:28:56
Rank: #5795 (-223)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:49:38
Rank: #7636 (-1841)
Half → 25K
20:42 | 8:32/mi
30K· 18.64 mi
2:19:18
Rank: #10331 (-2695)
25K → 30K
29:40 | 9:33/mi
20M
2:33:50
Rank: #11827 (-1496)
30K → 20M
14:32 | 10:42/mi
21M
2:41:56
Rank: #11574 (+253)
20M → 21M
8:06 | 8:06/mi
35K· 21.75 mi
2:52:46
Rank: #13360 (-1786)
21M → 35K
10:50 | 14:29/mi
23M
3:05:06
Rank: #13904 (-544)
35K → 23M
12:20 | 9:51/mi
24M
3:15:12
Rank: #14429 (-525)
23M → 24M
10:06 | 10:06/mi
40K· 24.85 mi
3:22:27
Rank: #14357 (+72)
24M → 40K
7:15 | 8:29/mi
25.2M
3:25:10
Rank: #14202 (+155)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
3:33:53
Rank: #14252 (-50)
25.2M → Finish
8:43 | 8:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:56
Pace6:47 /mi
2nd Half
Distance13.11 mi
Time2:04:57
Pace9:32 /mi
📊Positive Split: 40.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:4620:196:3220:19
6:32
-
10K
6.21 mi10:42:2240:556:3520:36
6:38
+0:06
15K
9.32 mi11:03:211:01:546:3820:59
6:45
+0:07
20K
12.43 mi11:25:281:24:016:4622:07
7:07
+0:22
Half
13.11 mi11:30:231:28:566:474:55
7:12
+0:05
25K
15.53 mi11:51:051:49:387:0320:42
8:32
+1:20
30K
18.64 mi12:20:452:19:187:2829:40
9:33
+1:01
20M
20.00 mi12:35:172:33:507:4114:32
10:42
+1:09
21M
21.00 mi12:43:232:41:567:438:06
8:06
-2:36
35K
21.75 mi12:54:132:52:467:5710:50
14:29
+6:23
23M
23.00 mi13:06:333:05:068:0312:20
9:51
-4:38
24M
24.00 mi13:16:393:15:128:0810:06
10:06
+0:15
40K
24.85 mi13:23:543:22:278:097:15
8:29
-1:37
25.2M
25.20 mi13:26:373:25:108:082:43
7:53
-0:36
Finish
26.22 mi13:35:203:33:538:108:43
8:33
+0:40

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

6:32 /mi

Average Pace

8:10 /mi

Slowest Pace

14:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:56

42% of race

Time at Steady Pace

47:29

22% of race

Time at Slower Pace

1:17:28

36% of race

Average Pace: 8:09 /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 mi10:21:4620:196:3220:19
6:32
#4106
10K
6.21 mi10:42:2240:556:3520:36
6:38
#4365
15K
9.32 mi11:03:211:01:546:3820:59
6:45
#4714
20K
12.43 mi11:25:281:24:016:4622:07
7:07
#5572
Half
13.11 mi11:30:231:28:566:474:55
7:12
#5795
25K
15.53 mi11:51:051:49:387:0320:42
8:32
#7636
30K
18.64 mi12:20:452:19:187:2829:40
9:33
#10331
20M
20.00 mi12:35:172:33:507:4114:32
10:42
#11827
21M
21.00 mi12:43:232:41:567:438:06
8:06
#11574
35K
21.75 mi12:54:132:52:467:5710:50
14:29
#13360
23M
23.00 mi13:06:333:05:068:0312:20
9:51
#13904
24M
24.00 mi13:16:393:15:128:0810:06
10:06
#14429
40K
24.85 mi13:23:543:22:278:097:15
8:29
#14357
25.2M
25.20 mi13:26:373:25:108:082:43
7:53
#14202
Finish
26.22 mi13:35:203:33:538:108:43
8:33
#14252
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4106387038705609(Top 20%)5127(Top 32%)5127(Top 91%)
10K6.21 mi3.10 mi4365-2594104-2344104-2344681(Top 16%)4381(Top 27%)4381(Top 78%)
15K9.32 mi3.11 mi4714-3494410-3064410-3065609(Top 20%)5127(Top 32%)5127(Top 91%)
20K12.43 mi3.11 mi5572-8585128-7185128-7187622(Top 27%)6623(Top 41%)6623(Top 117%)
Half13.11 mi0.68 mi5795-2235312-1845312-1849044(Top 32%)7477(Top 46%)7477(Top 133%)
25K15.53 mi2.42 mi7636-18416699-13876699-138717392(Top 61%)11265(Top 70%)11265(Top 200%)
30K18.64 mi3.11 mi10331-26958189-14908189-149020126(Top 71%)12346(Top 77%)12346(Top 219%)
20M20.00 mi1.36 mi11827-14968858-6698858-66922930(Top 81%)13485(Top 84%)13485(Top 239%)
21M21.00 mi1.00 mi11574+2538691+1678691+1677903(Top 28%)6185(Top 38%)6185(Top 110%)
35K21.75 mi0.75 mi13360-17869489-7989489-79827909(Top 98%)15792(Top 98%)15792(Top 280%)
23M23.00 mi1.25 mi13904-5449697-2089697-20819945(Top 70%)11872(Top 74%)11872(Top 210%)
24M24.00 mi1.00 mi14429-5259917-2209917-22021623(Top 76%)12638(Top 78%)12638(Top 224%)
40K24.85 mi0.85 mi14357+729841+769841+7613245(Top 47%)8623(Top 54%)8623(Top 153%)
25.2M25.20 mi0.35 mi14202+1559767+749767+745171(Top 18%)4194(Top 26%)4194(Top 74%)
Finish26.22 mi1.02 mi14252-509758+99758+916519(Top 58%)10148(Top 63%)10148(Top 180%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5609

Males

5127

M18-39

5127

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4681

Males

4381

M18-39

4381

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5609

Males

5127

M18-39

5127

15K→20K

9.3 - 12.4 mi

Top 27%
×5stories
+106ft-86ft

Overall

7622

Males

6623

M18-39

6623

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

9044

Males

7477

M18-39

7477

Half→25K

13.1 - 15.5 mi

Top 61%
×4stories
+66ft-88ft

Overall

17392

Males

11265

M18-39

11265

25K→30K

15.5 - 18.6 mi

Top 71%
×9stories
+181ft-148ft

Overall

20126

Males

12346

M18-39

12346

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

22930

Males

13485

M18-39

13485

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7903

Males

6185

M18-39

6185

21M→35K

21.0 - 21.8 mi

Top 98%
×7stories
+17ft-86ft

Overall

27909

Males

15792

M18-39

15792

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

19945

Males

11872

M18-39

11872

23M→24M

23.0 - 24.0 mi

Top 76%
×6stories
+12ft-82ft

Overall

21623

Males

12638

M18-39

12638

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13245

Males

8623

M18-39

8623

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

5171

Males

4194

M18-39

4194

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

16519

Males

10148

M18-39

10148

Passing Analysis

Category:
Athletes Passed
752
Passed By
10896
Net Change
-10146
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4106
5K → 10K55314-259#4106#4365
10K → 15K30379-349#4365#4714
15K → 20K15873-858#4714#5572
20K → Half0223-223#5572#5795
Half → 25K41845-1841#5795#7636
25K → 30K72700-2695#7636#10331
30K → 20M131509-1496#10331#11827
20M → 21M26512+253#11827#11574
21M → 35K11787-1786#11574#13360
35K → 23M25569-544#13360#13904
23M → 24M9534-525#13904#14429
24M → 40K11543+72#14429#14357
40K → 25.2M1550+155#14357#14202
25.2M → Finish58108-50#14202#14252
TOTALS75210896-10146
📊

Passing Visuals

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing