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BOSTON MARATHON 2025

Masato Tanaka

Bib: 3543•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 16%
Masters (Masters Men)
#0 / 10463
Top 5%
Division (M55-59)
#0 / 1648
Top 0.5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:06
Rank: #3594
Start → 5K
20:06 | 6:28/mi
10K· 6.21 mi
40:13
Rank: #3560 (+34)
5K → 10K
20:07 | 6:28/mi
15K· 9.32 mi
1:00:19
Rank: #3466 (+94)
10K → 15K
20:06 | 6:28/mi
20K· 12.43 mi
1:20:41
Rank: #3441 (+25)
15K → 20K
20:22 | 6:33/mi
Half· 13.11 mi
1:25:09
Rank: #3469 (-28)
20K → Half
4:28 | 6:33/mi
25K· 15.53 mi
1:41:10
Rank: #3460 (+9)
Half → 25K
16:01 | 6:36/mi
30K· 18.64 mi
2:02:10
Rank: #3347 (+113)
25K → 30K
21:00 | 6:46/mi
20M
2:11:24
Rank: #3276 (+71)
30K → 20M
9:14 | 6:48/mi
21M
2:18:28
Rank: #3192 (+84)
20M → 21M
7:04 | 7:04/mi
35K· 21.75 mi
2:23:17
Rank: #3123 (+69)
21M → 35K
4:49 | 6:26/mi
23M
2:31:41
Rank: #3009 (+114)
35K → 23M
8:24 | 6:43/mi
24M
2:38:08
Rank: #2926 (+83)
23M → 24M
6:27 | 6:27/mi
40K· 24.85 mi
2:43:48
Rank: #2857 (+69)
24M → 40K
5:40 | 6:38/mi
25.2M
2:46:13
Rank: #2814 (+43)
40K → 25.2M
2:25 | 7:00/mi
Finish· 26.22 mi
2:52:36
Rank: #2738 (+76)
25.2M → Finish
6:23 | 6:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:09
Pace6:30 /mi
2nd Half
Distance13.11 mi
Time1:27:27
Pace6:40 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0620:066:2820:06
6:28
-
10K
6.21 mi10:43:1340:136:2820:07
6:28
0:00
15K
9.32 mi11:03:191:00:196:2820:06
6:28
0:00
20K
12.43 mi11:23:411:20:416:3020:22
6:33
+0:05
Half
13.11 mi11:28:091:25:096:304:28
6:33
0:00
25K
15.53 mi11:44:101:41:106:3116:01
6:36
+0:03
30K
18.64 mi12:05:102:02:106:3321:00
6:46
+0:10
20M
20.00 mi12:14:242:11:246:349:14
6:48
+0:02
21M
21.00 mi12:21:282:18:286:367:04
7:04
+0:16
35K
21.75 mi12:26:172:23:176:354:49
6:26
-0:38
23M
23.00 mi12:34:412:31:416:368:24
6:43
+0:17
24M
24.00 mi12:41:082:38:086:356:27
6:27
-0:16
40K
24.85 mi12:46:482:43:486:355:40
6:38
+0:11
25.2M
25.20 mi12:49:132:46:136:362:25
7:00
+0:22
Finish
26.22 mi12:55:362:52:366:356:23
6:16
-0:44

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

6:16 /mi

Average Pace

6:35 /mi

Slowest Pace

7:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:07

95% of race

Time at Steady Pace

9:29

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:35 /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 mi10:23:0620:066:2820:06
6:28
#3594
10K
6.21 mi10:43:1340:136:2820:07
6:28
#3560
15K
9.32 mi11:03:191:00:196:2820:06
6:28
#3466
20K
12.43 mi11:23:411:20:416:3020:22
6:33
#3441
Half
13.11 mi11:28:091:25:096:304:28
6:33
#3469
25K
15.53 mi11:44:101:41:106:3116:01
6:36
#3460
30K
18.64 mi12:05:102:02:106:3321:00
6:46
#3347
20M
20.00 mi12:14:242:11:246:349:14
6:48
#3276
21M
21.00 mi12:21:282:18:286:367:04
7:04
#3192
35K
21.75 mi12:26:172:23:176:354:49
6:26
#3123
23M
23.00 mi12:34:412:31:416:368:24
6:43
#3009
24M
24.00 mi12:41:082:38:086:356:27
6:27
#2926
40K
24.85 mi12:46:482:43:486:355:40
6:38
#2857
25.2M
25.20 mi12:49:132:46:136:362:25
7:00
#2814
Finish
26.22 mi12:55:362:52:366:356:23
6:16
#2738
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi3594340934093357(Top 12%)3184(Top 20%)3184(Top 193%)
10K6.21 mi3.10 mi3560+343376+333376+333535(Top 12%)3346(Top 21%)3346(Top 203%)
15K9.32 mi3.11 mi3466+943290+863290+863357(Top 12%)3184(Top 20%)3184(Top 193%)
20K12.43 mi3.11 mi3441+253261+293261+293432(Top 12%)3250(Top 20%)3250(Top 197%)
Half13.11 mi0.68 mi3469-283286-253286-253924(Top 14%)3688(Top 23%)3688(Top 224%)
25K15.53 mi2.42 mi3460+93281+53281+53481(Top 12%)3281(Top 20%)3281(Top 199%)
30K18.64 mi3.11 mi3347+1133168+1133168+1133180(Top 11%)2978(Top 18%)2978(Top 181%)
20M20.00 mi1.36 mi3276+713101+673101+672876(Top 10%)2685(Top 17%)2685(Top 163%)
21M21.00 mi1.00 mi3192+843022+793022+792517(Top 9%)2343(Top 15%)2343(Top 142%)
35K21.75 mi0.75 mi3123+692957+652957+652168(Top 8%)2027(Top 13%)2027(Top 123%)
23M23.00 mi1.25 mi3009+1142847+1102847+1102282(Top 8%)2125(Top 13%)2125(Top 129%)
24M24.00 mi1.00 mi2926+832768+792768+791853(Top 7%)1722(Top 11%)1722(Top 104%)
40K24.85 mi0.85 mi2857+692704+642704+642061(Top 7%)1899(Top 12%)1899(Top 115%)
25.2M25.20 mi0.35 mi2814+432664+402664+401503(Top 5%)1374(Top 9%)1374(Top 83%)
Finish26.22 mi1.02 mi2738+762590+742590+741755(Top 6%)1625(Top 10%)1625(Top 99%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3357

Males

3184

M55-59

3184

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3535

Males

3346

M55-59

3346

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3357

Males

3184

M55-59

3184

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3432

Males

3250

M55-59

3250

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3924

Males

3688

M55-59

3688

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3481

Males

3281

M55-59

3281

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3180

Males

2978

M55-59

2978

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2876

Males

2685

M55-59

2685

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2517

Males

2343

M55-59

2343

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2168

Males

2027

M55-59

2027

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2282

Males

2125

M55-59

2125

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1853

Males

1722

M55-59

1722

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

2061

Males

1899

M55-59

1899

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1503

Males

1374

M55-59

1374

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1755

Males

1625

M55-59

1625

Passing Analysis

Category:
Athletes Passed
1358
Passed By
502
Net Change
+856
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3594
5K → 10K146112+34#3594#3560
10K → 15K15258+94#3560#3466
15K → 20K11792+25#3466#3441
20K → Half735-28#3441#3469
Half → 25K7566+9#3469#3460
25K → 30K16653+113#3460#3347
30K → 20M9625+71#3347#3276
20M → 21M10016+84#3276#3192
21M → 35K734+69#3192#3123
35K → 23M13016+114#3123#3009
23M → 24M863+83#3009#2926
24M → 40K7910+69#2926#2857
40K → 25.2M430+43#2857#2814
25.2M → Finish8812+76#2814#2738
TOTALS1358502+856
📊

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