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BOSTON MARATHON 2025

James Mastrianni

Bib: 23342•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Top 42%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:45
Rank: #18626
Start → 5K
25:45 | 8:17/mi
10K· 6.21 mi
52:09
Rank: #19187 (-561)
5K → 10K
26:24 | 8:30/mi
15K· 9.32 mi
1:18:21
Rank: #19055 (+132)
10K → 15K
26:12 | 8:26/mi
20K· 12.43 mi
1:43:39
Rank: #18248 (+807)
15K → 20K
25:18 | 8:09/mi
Half· 13.11 mi
1:49:09
Rank: #18130 (+118)
20K → Half
5:30 | 8:04/mi
25K· 15.53 mi
2:09:11
Rank: #17678 (+452)
Half → 25K
20:02 | 8:16/mi
30K· 18.64 mi
2:35:42
Rank: #17151 (+527)
25K → 30K
26:31 | 8:32/mi
20M
2:47:53
Rank: #17091 (+60)
30K → 20M
12:11 | 8:58/mi
21M
2:57:42
Rank: #17104 (-13)
20M → 21M
9:49 | 9:49/mi
35K· 21.75 mi
3:04:15
Rank: #17084 (+20)
21M → 35K
6:33 | 8:45/mi
23M
3:15:46
Rank: #17089 (-5)
35K → 23M
11:31 | 9:12/mi
24M
3:24:42
Rank: #17087 (+2)
23M → 24M
8:56 | 8:56/mi
40K· 24.85 mi
3:33:12
Rank: #17262 (-175)
24M → 40K
8:30 | 9:56/mi
25.2M
3:37:00
Rank: #17353 (-91)
40K → 25.2M
3:48 | 11:01/mi
Finish· 26.22 mi
3:47:05
Rank: #17619 (-266)
25.2M → Finish
10:05 | 9:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:09
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time1:57:56
Pace9:00 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:4425:458:1725:45
8:17
-
10K
6.21 mi11:48:0852:098:2426:24
8:30
+0:13
15K
9.32 mi12:14:201:18:218:2426:12
8:26
-0:04
20K
12.43 mi12:39:381:43:398:2025:18
8:09
-0:17
Half
13.11 mi12:45:081:49:098:205:30
8:04
-0:05
25K
15.53 mi13:05:102:09:118:1920:02
8:16
+0:12
30K
18.64 mi13:31:412:35:428:2126:31
8:32
+0:16
20M
20.00 mi13:43:522:47:538:2412:11
8:58
+0:26
21M
21.00 mi13:53:412:57:428:289:49
9:49
+0:51
35K
21.75 mi14:00:143:04:158:286:33
8:45
-1:04
23M
23.00 mi14:11:453:15:468:3111:31
9:12
+0:27
24M
24.00 mi14:20:413:24:428:328:56
8:56
-0:16
40K
24.85 mi14:29:113:33:128:358:30
9:56
+1:00
25.2M
25.20 mi14:32:593:37:008:373:48
11:01
+1:05
Finish
26.22 mi14:43:043:47:058:4010:05
9:54
-1:07

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

8:04 /mi

Average Pace

8:40 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:35

34% of race

Time at Steady Pace

1:46:47

47% of race

Time at Slower Pace

43:43

19% of race

Average Pace: 8:40 /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 mi11:21:4425:458:1725:45
8:17
#18626
10K
6.21 mi11:48:0852:098:2426:24
8:30
#19187
15K
9.32 mi12:14:201:18:218:2426:12
8:26
#19055
20K
12.43 mi12:39:381:43:398:2025:18
8:09
#18248
Half
13.11 mi12:45:081:49:098:205:30
8:04
#18130
25K
15.53 mi13:05:102:09:118:1920:02
8:16
#17678
30K
18.64 mi13:31:412:35:428:2126:31
8:32
#17151
20M
20.00 mi13:43:522:47:538:2412:11
8:58
#17091
21M
21.00 mi13:53:412:57:428:289:49
9:49
#17104
35K
21.75 mi14:00:143:04:158:286:33
8:45
#17084
23M
23.00 mi14:11:453:15:468:3111:31
9:12
#17089
24M
24.00 mi14:20:413:24:428:328:56
8:56
#17087
40K
24.85 mi14:29:113:33:128:358:30
9:56
#17262
25.2M
25.20 mi14:32:593:37:008:373:48
11:01
#17353
Finish
26.22 mi14:43:043:47:058:4010:05
9:54
#17619
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi18626118731187318901(Top 67%)12002(Top 75%)12002(Top 953%)
10K6.21 mi3.10 mi19187-56112127-25412127-25419768(Top 70%)12369(Top 77%)12369(Top 982%)
15K9.32 mi3.11 mi19055+13212057+7012057+7018901(Top 67%)12002(Top 75%)12002(Top 953%)
20K12.43 mi3.11 mi18248+80711714+34311714+34315929(Top 56%)10714(Top 67%)10714(Top 851%)
Half13.11 mi0.68 mi18130+11811661+5311661+5316346(Top 58%)10922(Top 68%)10922(Top 868%)
25K15.53 mi2.42 mi17678+45211466+19511466+19515679(Top 55%)10522(Top 65%)10522(Top 836%)
30K18.64 mi3.11 mi17151+52711197+26911197+26914975(Top 53%)10047(Top 62%)10047(Top 798%)
20M20.00 mi1.36 mi17091+6011137+6011137+6016599(Top 58%)10641(Top 66%)10641(Top 845%)
21M21.00 mi1.00 mi17104-1311115+2211115+2217536(Top 62%)10940(Top 68%)10940(Top 869%)
35K21.75 mi0.75 mi17084+2011079+3611079+3616995(Top 60%)10610(Top 66%)10610(Top 843%)
23M23.00 mi1.25 mi17089-511052+2711052+2717306(Top 61%)10652(Top 66%)10652(Top 846%)
24M24.00 mi1.00 mi17087+211030+2211030+2217001(Top 60%)10458(Top 65%)10458(Top 831%)
40K24.85 mi0.85 mi17262-17511080-5011080-5020243(Top 71%)11909(Top 74%)11909(Top 946%)
25.2M25.20 mi0.35 mi17353-9111106-2611106-2620651(Top 73%)12098(Top 75%)12098(Top 961%)
Finish26.22 mi1.02 mi17619-26611199-9311199-9322587(Top 80%)13068(Top 81%)13068(Top 1038%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21stories
+97ft-345ft

Overall

18901

Males

12002

M60-64

12002

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

19768

Males

12369

M60-64

12369

10K→15K

6.2 - 9.3 mi

Top 67%
×3stories
+67ft-78ft

Overall

18901

Males

12002

M60-64

12002

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

15929

Males

10714

M60-64

10714

20K→Half

12.4 - 13.1 mi

Top 58%
×2stories
+19ft-37ft

Overall

16346

Males

10922

M60-64

10922

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

15679

Males

10522

M60-64

10522

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

14975

Males

10047

M60-64

10047

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

16599

Males

10641

M60-64

10641

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

17536

Males

10940

M60-64

10940

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

16995

Males

10610

M60-64

10610

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

17306

Males

10652

M60-64

10652

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

17001

Males

10458

M60-64

10458

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20243

Males

11909

M60-64

11909

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20651

Males

12098

M60-64

12098

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2stories
+22ft-21ft

Overall

22587

Males

13068

M60-64

13068

Passing Analysis

Category:
Athletes Passed
2872
Passed By
1865
Net Change
+1007
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18626
5K → 10K97658-561#18626#19187
10K → 15K265133+132#19187#19055
15K → 20K8136+807#19055#18248
20K → Half1191+118#18248#18130
Half → 25K46412+452#18130#17678
25K → 30K54720+527#17678#17151
30K → 20M11959+60#17151#17091
20M → 21M114127-13#17091#17104
21M → 35K7858+20#17104#17084
35K → 23M115120-5#17084#17089
23M → 24M8280+2#17089#17087
24M → 40K27202-175#17087#17262
40K → 25.2M13104-91#17262#17353
25.2M → Finish19285-266#17353#17619
TOTALS28721865+1007
📊

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