Boston Marathon logo
BOSTON MARATHON 2025

Matthew Aspro

Bib: 3306•M

NY

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 19%
Gender (Male)
#0 / 16105
Top 30%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:09
Rank: #6362
Start → 5K
21:09 | 6:48/mi
10K· 6.21 mi
42:14
Rank: #6264 (+98)
5K → 10K
21:05 | 6:47/mi
15K· 9.32 mi
1:03:26
Rank: #6263 (+1)
10K → 15K
21:12 | 6:49/mi
20K· 12.43 mi
1:24:42
Rank: #6079 (+184)
15K → 20K
21:16 | 6:51/mi
Half· 13.11 mi
1:29:16
Rank: #6028 (+51)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:45:50
Rank: #5827 (+201)
Half → 25K
16:34 | 6:50/mi
30K· 18.64 mi
2:07:22
Rank: #5445 (+382)
25K → 30K
21:32 | 6:56/mi
20M
2:16:50
Rank: #5288 (+157)
30K → 20M
9:28 | 6:58/mi
21M
2:24:15
Rank: #5190 (+98)
20M → 21M
7:25 | 7:25/mi
35K· 21.75 mi
2:29:36
Rank: #5224 (-34)
21M → 35K
5:21 | 7:09/mi
23M
2:38:57
Rank: #5262 (-38)
35K → 23M
9:21 | 7:28/mi
24M
2:46:29
Rank: #5337 (-75)
23M → 24M
7:32 | 7:32/mi
40K· 24.85 mi
2:53:02
Rank: #5361 (-24)
24M → 40K
6:33 | 7:40/mi
25.2M
2:55:56
Rank: #5369 (-8)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:03:45
Rank: #5459 (-90)
25.2M → Finish
7:49 | 7:40/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
Time1:29:16
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:34:29
Pace7:12 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5321:096:4821:09
6:48
-
10K
6.21 mi10:44:5842:146:4821:05
6:47
-0:01
15K
9.32 mi11:06:101:03:266:4821:12
6:49
+0:02
20K
12.43 mi11:27:261:24:426:4921:16
6:51
+0:02
Half
13.11 mi11:32:001:29:166:494:34
6:42
-0:09
25K
15.53 mi11:48:341:45:506:4916:34
6:50
+0:08
30K
18.64 mi12:10:062:07:226:5021:32
6:56
+0:06
20M
20.00 mi12:19:342:16:506:509:28
6:58
+0:02
21M
21.00 mi12:26:592:24:156:527:25
7:25
+0:27
35K
21.75 mi12:32:202:29:366:535:21
7:09
-0:16
23M
23.00 mi12:41:412:38:576:559:21
7:28
+0:19
24M
24.00 mi12:49:132:46:296:567:32
7:32
+0:04
40K
24.85 mi12:55:462:53:026:586:33
7:40
+0:08
25.2M
25.20 mi12:58:402:55:566:592:54
8:25
+0:45
Finish
26.22 mi13:06:293:03:457:017:49
7:40
-0:45

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

6:42 /mi

Average Pace

7:01 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:34

2% of race

Time at Steady Pace

2:17:37

75% of race

Time at Slower Pace

41:34

23% of race

Average Pace: 7:00 /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 mi10:23:5321:096:4821:09
6:48
#6362
10K
6.21 mi10:44:5842:146:4821:05
6:47
#6264
15K
9.32 mi11:06:101:03:266:4821:12
6:49
#6263
20K
12.43 mi11:27:261:24:426:4921:16
6:51
#6079
Half
13.11 mi11:32:001:29:166:494:34
6:42
#6028
25K
15.53 mi11:48:341:45:506:4916:34
6:50
#5827
30K
18.64 mi12:10:062:07:226:5021:32
6:56
#5445
20M
20.00 mi12:19:342:16:506:509:28
6:58
#5288
21M
21.00 mi12:26:592:24:156:527:25
7:25
#5190
35K
21.75 mi12:32:202:29:366:535:21
7:09
#5224
23M
23.00 mi12:41:412:38:576:559:21
7:28
#5262
24M
24.00 mi12:49:132:46:296:567:32
7:32
#5337
40K
24.85 mi12:55:462:53:026:586:33
7:40
#5361
25.2M
25.20 mi12:58:402:55:566:592:54
8:25
#5369
Finish
26.22 mi13:06:293:03:457:017:49
7:40
#5459
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6362580858086323(Top 22%)5724(Top 36%)5724(Top 101%)
10K6.21 mi3.10 mi6264+985735+735735+736242(Top 22%)5679(Top 35%)5679(Top 101%)
15K9.32 mi3.11 mi6263+15722+135722+136323(Top 22%)5724(Top 36%)5724(Top 101%)
20K12.43 mi3.11 mi6079+1845549+1735549+1735743(Top 20%)5233(Top 32%)5233(Top 93%)
Half13.11 mi0.68 mi6028+515503+465503+465253(Top 18%)4848(Top 30%)4848(Top 86%)
25K15.53 mi2.42 mi5827+2015323+1805323+1805145(Top 18%)4720(Top 29%)4720(Top 84%)
30K18.64 mi3.11 mi5445+3824994+3294994+3294288(Top 15%)3938(Top 24%)3938(Top 70%)
20M20.00 mi1.36 mi5288+1574847+1474847+1473929(Top 14%)3612(Top 22%)3612(Top 64%)
21M21.00 mi1.00 mi5190+984762+854762+854218(Top 15%)3797(Top 24%)3797(Top 67%)
35K21.75 mi0.75 mi5224-344784-224784-226275(Top 22%)5248(Top 33%)5248(Top 93%)
23M23.00 mi1.25 mi5262-384798-144798-146439(Top 23%)5252(Top 33%)5252(Top 93%)
24M24.00 mi1.00 mi5337-754857-594857-597908(Top 28%)6052(Top 38%)6052(Top 107%)
40K24.85 mi0.85 mi5361-244861-44861-47804(Top 27%)5879(Top 37%)5879(Top 104%)
25.2M25.20 mi0.35 mi5369-84855+64855+68168(Top 29%)5992(Top 37%)5992(Top 106%)
Finish26.22 mi1.02 mi5459-904912-574912-5710441(Top 37%)7211(Top 45%)7211(Top 128%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

6323

Males

5724

M18-39

5724

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

6242

Males

5679

M18-39

5679

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

6323

Males

5724

M18-39

5724

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5743

Males

5233

M18-39

5233

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

5253

Males

4848

M18-39

4848

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5145

Males

4720

M18-39

4720

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4288

Males

3938

M18-39

3938

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3929

Males

3612

M18-39

3612

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4218

Males

3797

M18-39

3797

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

6275

Males

5248

M18-39

5248

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6439

Males

5252

M18-39

5252

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

7908

Males

6052

M18-39

6052

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7804

Males

5879

M18-39

5879

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8168

Males

5992

M18-39

5992

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2stories
+22ft-21ft

Overall

10441

Males

7211

M18-39

7211

Passing Analysis

Category:
Athletes Passed
1831
Passed By
928
Net Change
+903
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6362
5K → 10K238140+98#6362#6264
10K → 15K146145+1#6264#6263
15K → 20K23753+184#6263#6079
20K → Half576+51#6079#6028
Half → 25K23130+201#6028#5827
25K → 30K39614+382#5827#5445
30K → 20M17215+157#5445#5288
20M → 21M13032+98#5288#5190
21M → 35K3468-34#5190#5224
35K → 23M74112-38#5224#5262
23M → 24M30105-75#5262#5337
24M → 40K4367-24#5337#5361
40K → 25.2M2129-8#5361#5369
25.2M → Finish22112-90#5369#5459
TOTALS1831928+903
📊

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