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BOSTON MARATHON 2025

Ryuichi Nakayama

Bib: 3308•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 13%
Gender (Male)
#0 / 16105
Top 21%
Masters (Masters Men)
#0 / 10463
Top 8%
Division (M40-44)
#0 / 2247
Top 23%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:39
Rank: #4979
Start → 5K
20:39 | 6:39/mi
10K· 6.21 mi
40:56
Rank: #4394 (+585)
5K → 10K
20:17 | 6:32/mi
15K· 9.32 mi
1:01:19
Rank: #4241 (+153)
10K → 15K
20:23 | 6:34/mi
20K· 12.43 mi
1:22:04
Rank: #4193 (+48)
15K → 20K
20:45 | 6:41/mi
Half· 13.11 mi
1:26:39
Rank: #4241 (-48)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:43:13
Rank: #4317 (-76)
Half → 25K
16:34 | 6:50/mi
30K· 18.64 mi
2:06:09
Rank: #4892 (-575)
25K → 30K
22:56 | 7:23/mi
20M
2:15:27
Rank: #4717 (+175)
30K → 20M
9:18 | 6:51/mi
21M
2:22:23
Rank: #4447 (+270)
20M → 21M
6:56 | 6:56/mi
35K· 21.75 mi
2:27:12
Rank: #4311 (+136)
21M → 35K
4:49 | 6:26/mi
23M
2:35:30
Rank: #4098 (+213)
35K → 23M
8:18 | 6:38/mi
24M
2:42:00
Rank: #3953 (+145)
23M → 24M
6:30 | 6:30/mi
40K· 24.85 mi
2:47:31
Rank: #3799 (+154)
24M → 40K
5:31 | 6:27/mi
25.2M
2:49:58
Rank: #3746 (+53)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:56:42
Rank: #3668 (+78)
25.2M → Finish
6:44 | 6:36/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:39
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:30:03
Pace6:52 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:2820:396:3920:39
6:39
-
10K
6.21 mi10:41:4540:566:3520:17
6:32
-0:07
15K
9.32 mi11:02:081:01:196:3520:23
6:34
+0:02
20K
12.43 mi11:22:531:22:046:3620:45
6:41
+0:07
Half
13.11 mi11:27:281:26:396:374:35
6:43
+0:02
25K
15.53 mi11:44:021:43:136:3916:34
6:50
+0:07
30K
18.64 mi12:06:582:06:096:4622:56
7:23
+0:33
20M
20.00 mi12:16:162:15:276:469:18
6:51
-0:32
21M
21.00 mi12:23:122:22:236:476:56
6:56
+0:05
35K
21.75 mi12:28:012:27:126:464:49
6:26
-0:30
23M
23.00 mi12:36:192:35:306:468:18
6:38
+0:12
24M
24.00 mi12:42:492:42:006:456:30
6:30
-0:08
40K
24.85 mi12:48:202:47:316:445:31
6:27
-0:03
25.2M
25.20 mi12:50:472:49:586:452:27
7:06
+0:39
Finish
26.22 mi12:57:312:56:426:456:44
6:36
-0:30

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

6:26 /mi

Average Pace

6:45 /mi

Slowest Pace

7:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:19

86% of race

Time at Steady Pace

25:23

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:44 /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 mi10:21:2820:396:3920:39
6:39
#4979
10K
6.21 mi10:41:4540:566:3520:17
6:32
#4394
15K
9.32 mi11:02:081:01:196:3520:23
6:34
#4241
20K
12.43 mi11:22:531:22:046:3620:45
6:41
#4193
Half
13.11 mi11:27:281:26:396:374:35
6:43
#4241
25K
15.53 mi11:44:021:43:136:3916:34
6:50
#4317
30K
18.64 mi12:06:582:06:096:4622:56
7:23
#4892
20M
20.00 mi12:16:162:15:276:469:18
6:51
#4717
21M
21.00 mi12:23:122:22:236:476:56
6:56
#4447
35K
21.75 mi12:28:012:27:126:464:49
6:26
#4311
23M
23.00 mi12:36:192:35:306:468:18
6:38
#4098
24M
24.00 mi12:42:492:42:006:456:30
6:30
#3953
40K
24.85 mi12:48:202:47:316:445:31
6:27
#3799
25.2M
25.20 mi12:50:472:49:586:452:27
7:06
#3746
Finish
26.22 mi12:57:312:56:426:456:44
6:36
#3668
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4979465346533946(Top 14%)3718(Top 23%)3718(Top 165%)
10K6.21 mi3.10 mi4394+5854133+5204133+5203921(Top 14%)3692(Top 23%)3692(Top 164%)
15K9.32 mi3.11 mi4241+1533989+1443989+1443946(Top 14%)3718(Top 23%)3718(Top 165%)
20K12.43 mi3.11 mi4193+483944+453944+454230(Top 15%)3958(Top 25%)3958(Top 176%)
Half13.11 mi0.68 mi4241-483988-443988-445333(Top 19%)4888(Top 30%)4888(Top 218%)
25K15.53 mi2.42 mi4317-764047-594047-595092(Top 18%)4667(Top 29%)4667(Top 208%)
30K18.64 mi3.11 mi4892-5754522-4754522-4756930(Top 24%)5922(Top 37%)5922(Top 264%)
20M20.00 mi1.36 mi4717+1754372+1504372+1503169(Top 11%)2934(Top 18%)2934(Top 131%)
21M21.00 mi1.00 mi4447+2704127+2454127+2452001(Top 7%)1884(Top 12%)1884(Top 84%)
35K21.75 mi0.75 mi4311+1364006+1214006+1212178(Top 8%)2037(Top 13%)2037(Top 91%)
23M23.00 mi1.25 mi4098+2133812+1943812+1941949(Top 7%)1820(Top 11%)1820(Top 81%)
24M24.00 mi1.00 mi3953+1453674+1383674+1382051(Top 7%)1904(Top 12%)1904(Top 85%)
40K24.85 mi0.85 mi3799+1543538+1363538+1361449(Top 5%)1343(Top 8%)1343(Top 60%)
25.2M25.20 mi0.35 mi3746+533488+503488+501809(Top 6%)1648(Top 10%)1648(Top 73%)
Finish26.22 mi1.02 mi3668+783414+743414+743359(Top 12%)2943(Top 18%)2943(Top 131%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3946

Males

3718

M40-44

3718

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3921

Males

3692

M40-44

3692

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3946

Males

3718

M40-44

3718

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

4230

Males

3958

M40-44

3958

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5333

Males

4888

M40-44

4888

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5092

Males

4667

M40-44

4667

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6930

Males

5922

M40-44

5922

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3169

Males

2934

M40-44

2934

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

2001

Males

1884

M40-44

1884

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2178

Males

2037

M40-44

2037

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1949

Males

1820

M40-44

1820

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

2051

Males

1904

M40-44

1904

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1449

Males

1343

M40-44

1343

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1809

Males

1648

M40-44

1648

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3359

Males

2943

M40-44

2943

Passing Analysis

Category:
Athletes Passed
2288
Passed By
977
Net Change
+1311
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4979
5K → 10K59813+585#4979#4394
10K → 15K19340+153#4394#4241
15K → 20K12476+48#4241#4193
20K → Half856-48#4193#4241
Half → 25K64140-76#4241#4317
25K → 30K45620-575#4317#4892
30K → 20M1805+175#4892#4717
20M → 21M2733+270#4717#4447
21M → 35K1360+136#4447#4311
35K → 23M2152+213#4311#4098
23M → 24M1461+145#4098#3953
24M → 40K1540+154#3953#3799
40K → 25.2M530+53#3799#3746
25.2M → Finish9921+78#3746#3668
TOTALS2288977+1311
📊

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