Boston Marathon logo
BOSTON MARATHON 2025

Cosimo Mazzotta

Bib: 20280•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:00
Rank: #16962
Start → 5K
25:00 | 8:03/mi
10K· 6.21 mi
50:36
Rank: #17592 (-630)
5K → 10K
25:36 | 8:14/mi
15K· 9.32 mi
1:16:05
Rank: #17506 (+86)
10K → 15K
25:29 | 8:12/mi
20K· 12.43 mi
1:42:09
Rank: #17474 (+32)
15K → 20K
26:04 | 8:23/mi
Half· 13.11 mi
1:47:43
Rank: #17442 (+32)
20K → Half
5:34 | 8:10/mi
25K· 15.53 mi
2:10:17
Rank: #18181 (-739)
Half → 25K
22:34 | 9:18/mi
30K· 18.64 mi
2:40:13
Rank: #18716 (-535)
25K → 30K
29:56 | 9:38/mi
20M
2:54:01
Rank: #19037 (-321)
30K → 20M
13:48 | 10:09/mi
21M
3:05:55
Rank: #19446 (-409)
20M → 21M
11:54 | 11:54/mi
35K· 21.75 mi
3:13:45
Rank: #19672 (-226)
21M → 35K
7:50 | 10:28/mi
23M
3:27:05
Rank: #19932 (-260)
35K → 23M
13:20 | 10:39/mi
24M
3:37:24
Rank: #20087 (-155)
23M → 24M
10:19 | 10:19/mi
40K· 24.85 mi
3:45:53
Rank: #20119 (-32)
24M → 40K
8:29 | 9:55/mi
25.2M
3:49:34
Rank: #20119
40K → 25.2M
3:41 | 10:41/mi
Finish· 26.22 mi
3:58:39
Rank: #20088 (+31)
25.2M → Finish
9:05 | 8:55/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:43
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time2:10:56
Pace9:59 /mi
📊Positive Split: 21.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:1225:008:0325:00
8:03
-
10K
6.21 mi11:46:4850:368:0925:36
8:14
+0:11
15K
9.32 mi12:12:171:16:058:1025:29
8:12
-0:02
20K
12.43 mi12:38:211:42:098:1326:04
8:23
+0:11
Half
13.11 mi12:43:551:47:438:135:34
8:10
-0:13
25K
15.53 mi13:06:292:10:178:2322:34
9:18
+1:08
30K
18.64 mi13:36:252:40:138:3629:56
9:38
+0:20
20M
20.00 mi13:50:132:54:018:4213:48
10:09
+0:31
21M
21.00 mi14:02:073:05:558:5111:54
11:54
+1:45
35K
21.75 mi14:09:573:13:458:557:50
10:28
-1:26
23M
23.00 mi14:23:173:27:059:0013:20
10:39
+0:11
24M
24.00 mi14:33:363:37:249:0410:19
10:19
-0:20
40K
24.85 mi14:42:053:45:539:058:29
9:55
-0:24
25.2M
25.20 mi14:45:463:49:349:073:41
10:41
+0:46
Finish
26.22 mi14:54:513:58:399:079:05
8:55
-1:46

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

8:03 /mi

Average Pace

9:07 /mi

Slowest Pace

11:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:48

49% of race

Time at Steady Pace

1:14:47

31% of race

Time at Slower Pace

47:04

20% of race

Average Pace: 9:06 /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 mi11:21:1225:008:0325:00
8:03
#16962
10K
6.21 mi11:46:4850:368:0925:36
8:14
#17592
15K
9.32 mi12:12:171:16:058:1025:29
8:12
#17506
20K
12.43 mi12:38:211:42:098:1326:04
8:23
#17474
Half
13.11 mi12:43:551:47:438:135:34
8:10
#17442
25K
15.53 mi13:06:292:10:178:2322:34
9:18
#18181
30K
18.64 mi13:36:252:40:138:3629:56
9:38
#18716
20M
20.00 mi13:50:132:54:018:4213:48
10:09
#19037
21M
21.00 mi14:02:073:05:558:5111:54
11:54
#19446
35K
21.75 mi14:09:573:13:458:557:50
10:28
#19672
23M
23.00 mi14:23:173:27:059:0013:20
10:39
#19932
24M
24.00 mi14:33:363:37:249:0410:19
10:19
#20087
40K
24.85 mi14:42:053:45:539:058:29
9:55
#20119
25.2M
25.20 mi14:45:463:49:349:073:41
10:41
#20119
Finish
26.22 mi14:54:513:58:399:079:05
8:55
#20088
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi16962111961119617404(Top 61%)11399(Top 71%)11399(Top 905%)
10K6.21 mi3.10 mi17592-63011449-25311449-25318161(Top 64%)11714(Top 73%)11714(Top 930%)
15K9.32 mi3.11 mi17506+8611439+1011439+1017404(Top 61%)11399(Top 71%)11399(Top 905%)
20K12.43 mi3.11 mi17474+3211405+3411405+3417488(Top 62%)11396(Top 71%)11396(Top 905%)
Half13.11 mi0.68 mi17442+3211390+1511390+1517015(Top 60%)11206(Top 70%)11206(Top 890%)
25K15.53 mi2.42 mi18181-73911666-27611666-27621197(Top 75%)12934(Top 80%)12934(Top 1027%)
30K18.64 mi3.11 mi18716-53511884-21811884-21820482(Top 72%)12505(Top 78%)12505(Top 993%)
20M20.00 mi1.36 mi19037-32111982-9811982-9821437(Top 75%)12785(Top 79%)12785(Top 1015%)
21M21.00 mi1.00 mi19446-40912132-15012132-15023401(Top 82%)13627(Top 85%)13627(Top 1082%)
35K21.75 mi0.75 mi19672-22612220-8812220-8823085(Top 81%)13425(Top 83%)13425(Top 1066%)
23M23.00 mi1.25 mi19932-26012292-7212292-7222390(Top 79%)13054(Top 81%)13054(Top 1037%)
24M24.00 mi1.00 mi20087-15512350-5812350-5822284(Top 78%)12943(Top 80%)12943(Top 1028%)
40K24.85 mi0.85 mi20119-3212338+1212338+1220179(Top 71%)11881(Top 74%)11881(Top 944%)
25.2M25.20 mi0.35 mi2011912327+1112327+1119629(Top 69%)11612(Top 72%)11612(Top 922%)
Finish26.22 mi1.02 mi20088+3112306+2112306+2118586(Top 65%)11166(Top 69%)11166(Top 887%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

17404

Males

11399

M60-64

11399

5K→10K

3.1 - 6.2 mi

Top 64%
×5stories
+79ft-138ft

Overall

18161

Males

11714

M60-64

11714

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

17404

Males

11399

M60-64

11399

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

17488

Males

11396

M60-64

11396

20K→Half

12.4 - 13.1 mi

Top 60%
×2stories
+19ft-37ft

Overall

17015

Males

11206

M60-64

11206

Half→25K

13.1 - 15.5 mi

Top 75%
×4stories
+66ft-88ft

Overall

21197

Males

12934

M60-64

12934

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

20482

Males

12505

M60-64

12505

30K→20M

18.6 - 20.0 mi

Top 75%
×5stories
+64ft-50ft

Overall

21437

Males

12785

M60-64

12785

20M→21M

20.0 - 21.0 mi

Top 82%
×8stories
+106ft-24ft

Overall

23401

Males

13627

M60-64

13627

21M→35K

21.0 - 21.8 mi

Top 81%
×7stories
+17ft-86ft

Overall

23085

Males

13425

M60-64

13425

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

22390

Males

13054

M60-64

13054

23M→24M

23.0 - 24.0 mi

Top 78%
×6stories
+12ft-82ft

Overall

22284

Males

12943

M60-64

12943

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20179

Males

11881

M60-64

11881

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

19629

Males

11612

M60-64

11612

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2stories
+22ft-21ft

Overall

18586

Males

11166

M60-64

11166

Passing Analysis

Category:
Athletes Passed
1061
Passed By
4187
Net Change
-3126
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16962
5K → 10K109739-630#16962#17592
10K → 15K246160+86#17592#17506
15K → 20K203171+32#17506#17474
20K → Half5220+32#17474#17442
Half → 25K42781-739#17442#18181
25K → 30K107642-535#18181#18716
30K → 20M38359-321#18716#19037
20M → 21M25434-409#19037#19446
21M → 35K13239-226#19446#19672
35K → 23M41301-260#19672#19932
23M → 24M27182-155#19932#20087
24M → 40K4779-32#20087#20119
40K → 25.2M30300#20119#20119
25.2M → Finish8150+31#20119#20088
TOTALS10614187-3126
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing