Boston Marathon logo
BOSTON MARATHON 2025

Marco Massari

Bib: 8952•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 29%
Gender (Male)
#0 / 16105
Top 42%
Masters (Masters Men)
#0 / 10463
Top 30%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:12
Rank: #6512
Start → 5K
21:12 | 6:49/mi
10K· 6.21 mi
42:26
Rank: #6568 (-56)
5K → 10K
21:14 | 6:50/mi
15K· 9.32 mi
1:03:48
Rank: #6626 (-58)
10K → 15K
21:22 | 6:53/mi
20K· 12.43 mi
1:25:02
Rank: #6337 (+289)
15K → 20K
21:14 | 6:50/mi
Half· 13.11 mi
1:29:41
Rank: #6324 (+13)
20K → Half
4:39 | 6:49/mi
25K· 15.53 mi
1:46:27
Rank: #6188 (+136)
Half → 25K
16:46 | 6:55/mi
30K· 18.64 mi
2:09:33
Rank: #6326 (-138)
25K → 30K
23:06 | 7:26/mi
20M
2:19:53
Rank: #6353 (-27)
30K → 20M
10:20 | 7:36/mi
21M
2:28:09
Rank: #6411 (-58)
20M → 21M
8:16 | 8:16/mi
35K· 21.75 mi
2:34:52
Rank: #6762 (-351)
21M → 35K
6:43 | 8:59/mi
23M
2:44:44
Rank: #6853 (-91)
35K → 23M
9:52 | 7:53/mi
24M
2:53:12
Rank: #7113 (-260)
23M → 24M
8:28 | 8:28/mi
40K· 24.85 mi
3:00:32
Rank: #7317 (-204)
24M → 40K
7:20 | 8:35/mi
25.2M
3:03:51
Rank: #7430 (-113)
40K → 25.2M
3:19 | 9:37/mi
Finish· 26.22 mi
3:14:04
Rank: #8247 (-817)
25.2M → Finish
10:13 | 10:02/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
Time1:29:41
Pace6:50 /mi
2nd Half
Distance13.11 mi
Time1:44:23
Pace7:58 /mi
📊Positive Split: 16.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:2121:126:4921:12
6:49
-
10K
6.21 mi11:07:3542:266:5021:14
6:50
+0:01
15K
9.32 mi11:28:571:03:486:5121:22
6:53
+0:03
20K
12.43 mi11:50:111:25:026:5121:14
6:50
-0:03
Half
13.11 mi11:54:501:29:416:504:39
6:49
-0:01
25K
15.53 mi12:11:361:46:276:5116:46
6:55
+0:06
30K
18.64 mi12:34:422:09:336:5723:06
7:26
+0:31
20M
20.00 mi12:45:022:19:537:0010:20
7:36
+0:10
21M
21.00 mi12:53:182:28:097:038:16
8:16
+0:40
35K
21.75 mi13:00:012:34:527:076:43
8:59
+0:43
23M
23.00 mi13:09:532:44:447:109:52
7:53
-1:06
24M
24.00 mi13:18:212:53:127:138:28
8:28
+0:35
40K
24.85 mi13:25:413:00:327:167:20
8:35
+0:07
25.2M
25.20 mi13:29:003:03:517:183:19
9:37
+1:02
Finish
26.22 mi13:39:133:14:047:2410:13
10:02
+0:25

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

6:49 /mi

Average Pace

7:24 /mi

Slowest Pace

10:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:27

55% of race

Time at Steady Pace

43:18

22% of race

Time at Slower Pace

44:19

23% of race

Average Pace: 7:24 /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 mi10:46:2121:126:4921:12
6:49
#6512
10K
6.21 mi11:07:3542:266:5021:14
6:50
#6568
15K
9.32 mi11:28:571:03:486:5121:22
6:53
#6626
20K
12.43 mi11:50:111:25:026:5121:14
6:50
#6337
Half
13.11 mi11:54:501:29:416:504:39
6:49
#6324
25K
15.53 mi12:11:361:46:276:5116:46
6:55
#6188
30K
18.64 mi12:34:422:09:336:5723:06
7:26
#6326
20M
20.00 mi12:45:022:19:537:0010:20
7:36
#6353
21M
21.00 mi12:53:182:28:097:038:16
8:16
#6411
35K
21.75 mi13:00:012:34:527:076:43
8:59
#6762
23M
23.00 mi13:09:532:44:447:109:52
7:53
#6853
24M
24.00 mi13:18:212:53:127:138:28
8:28
#7113
40K
24.85 mi13:25:413:00:327:167:20
8:35
#7317
25.2M
25.20 mi13:29:003:03:517:183:19
9:37
#7430
Finish
26.22 mi13:39:133:14:047:2410:13
10:02
#8247
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6512592959296792(Top 24%)6095(Top 38%)6095(Top 271%)
10K6.21 mi3.10 mi6568-565968-395968-396739(Top 24%)6077(Top 38%)6077(Top 270%)
15K9.32 mi3.11 mi6626-585987-195987-196792(Top 24%)6095(Top 38%)6095(Top 271%)
20K12.43 mi3.11 mi6337+2895752+2355752+2355656(Top 20%)5159(Top 32%)5159(Top 230%)
Half13.11 mi0.68 mi6324+135738+145738+146315(Top 22%)5700(Top 35%)5700(Top 254%)
25K15.53 mi2.42 mi6188+1365607+1315607+1315783(Top 20%)5227(Top 32%)5227(Top 233%)
30K18.64 mi3.11 mi6326-1385693-865693-867270(Top 26%)6135(Top 38%)6135(Top 273%)
20M20.00 mi1.36 mi6353-275701-85701-87704(Top 27%)6260(Top 39%)6260(Top 279%)
21M21.00 mi1.00 mi6411-585727-265727-268982(Top 32%)6801(Top 42%)6801(Top 303%)
35K21.75 mi0.75 mi6762-3515967-2405967-24018084(Top 64%)11074(Top 69%)11074(Top 493%)
23M23.00 mi1.25 mi6853-915998-315998-319118(Top 32%)6776(Top 42%)6776(Top 302%)
24M24.00 mi1.00 mi7113-2606141-1436141-14314252(Top 50%)9251(Top 57%)9251(Top 412%)
40K24.85 mi0.85 mi7317-2046242-1016242-10113877(Top 49%)8926(Top 55%)8926(Top 397%)
25.2M25.20 mi0.35 mi7430-1136297-556297-5515089(Top 53%)9428(Top 59%)9428(Top 420%)
Finish26.22 mi1.02 mi8247-8176777-4806777-48022987(Top 81%)13266(Top 82%)13266(Top 590%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6792

Males

6095

M40-44

6095

5K→10K

3.1 - 6.2 mi

Top 24%
×5stories
+79ft-138ft

Overall

6739

Males

6077

M40-44

6077

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6792

Males

6095

M40-44

6095

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5656

Males

5159

M40-44

5159

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

6315

Males

5700

M40-44

5700

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5783

Males

5227

M40-44

5227

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

7270

Males

6135

M40-44

6135

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7704

Males

6260

M40-44

6260

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

8982

Males

6801

M40-44

6801

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

18084

Males

11074

M40-44

11074

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

9118

Males

6776

M40-44

6776

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

14252

Males

9251

M40-44

9251

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13877

Males

8926

M40-44

8926

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

15089

Males

9428

M40-44

9428

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

22987

Males

13266

M40-44

13266

Passing Analysis

Category:
Athletes Passed
1222
Passed By
2957
Net Change
-1735
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6512
5K → 10K166222-56#6512#6568
10K → 15K135193-58#6568#6626
15K → 20K31122+289#6626#6337
20K → Half3623+13#6337#6324
Half → 25K18852+136#6324#6188
25K → 30K129267-138#6188#6326
30K → 20M82109-27#6326#6353
20M → 21M43101-58#6353#6411
21M → 35K8359-351#6411#6762
35K → 23M72163-91#6762#6853
23M → 24M21281-260#6853#7113
24M → 40K22226-204#7113#7317
40K → 25.2M7120-113#7317#7430
25.2M → Finish2819-817#7430#8247
TOTALS12222957-1735
📊

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