Boston Marathon logo
BOSTON MARATHON 2025

Alessio Passera

Bib: 1267•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 5%
Gender (Male)
#0 / 16105
Top 8%
Division (M18-39)
#0 / 5642
Top 18%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:36
Rank: #1043
Start → 5K
18:36 | 5:59/mi
10K· 6.21 mi
37:14
Rank: #1039 (+4)
5K → 10K
18:38 | 6:00/mi
15K· 9.32 mi
55:52
Rank: #1030 (+9)
10K → 15K
18:38 | 6:00/mi
20K· 12.43 mi
1:14:44
Rank: #1033 (-3)
15K → 20K
18:52 | 6:04/mi
Half· 13.11 mi
1:18:47
Rank: #1021 (+12)
20K → Half
4:03 | 5:56/mi
25K· 15.53 mi
1:33:36
Rank: #1023 (-2)
Half → 25K
14:49 | 6:07/mi
30K· 18.64 mi
1:53:08
Rank: #1028 (-5)
25K → 30K
19:32 | 6:17/mi
20M
2:01:56
Rank: #1035 (-7)
30K → 20M
8:48 | 6:29/mi
21M
2:08:55
Rank: #1061 (-26)
20M → 21M
6:59 | 6:59/mi
35K· 21.75 mi
2:13:37
Rank: #1064 (-3)
21M → 35K
4:42 | 6:17/mi
23M
2:22:10
Rank: #1112 (-48)
35K → 23M
8:33 | 6:50/mi
24M
2:28:51
Rank: #1151 (-39)
23M → 24M
6:41 | 6:41/mi
40K· 24.85 mi
2:34:44
Rank: #1192 (-41)
24M → 40K
5:53 | 6:53/mi
25.2M
2:37:30
Rank: #1234 (-42)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
2:44:18
Rank: #1293 (-59)
25.2M → Finish
6:48 | 6:40/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
Time1:18:47
Pace6:01 /mi
2nd Half
Distance13.11 mi
Time1:25:31
Pace6:31 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:0418:365:5918:36
5:59
-
10K
6.21 mi10:37:4237:146:0018:38
6:00
+0:01
15K
9.32 mi10:56:2055:526:0018:38
6:00
0:00
20K
12.43 mi11:15:121:14:446:0118:52
6:04
+0:04
Half
13.11 mi11:19:151:18:476:014:03
5:56
-0:08
25K
15.53 mi11:34:041:33:366:0214:49
6:07
+0:11
30K
18.64 mi11:53:361:53:086:0419:32
6:17
+0:10
20M
20.00 mi12:02:242:01:566:068:48
6:29
+0:12
21M
21.00 mi12:09:232:08:556:086:59
6:59
+0:30
35K
21.75 mi12:14:052:13:376:094:42
6:17
-0:42
23M
23.00 mi12:22:382:22:106:118:33
6:50
+0:33
24M
24.00 mi12:29:192:28:516:126:41
6:41
-0:09
40K
24.85 mi12:35:122:34:446:145:53
6:53
+0:12
25.2M
25.20 mi12:37:582:37:306:152:46
8:01
+1:08
Finish
26.22 mi12:44:462:44:186:166:48
6:40
-1:21

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

5:56 /mi

Average Pace

6:16 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

59:55

36% of race

Time at Steady Pace

1:06:43

41% of race

Time at Slower Pace

37:40

23% of race

Average Pace: 6:16 /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 mi10:19:0418:365:5918:36
5:59
#1043
10K
6.21 mi10:37:4237:146:0018:38
6:00
#1039
15K
9.32 mi10:56:2055:526:0018:38
6:00
#1030
20K
12.43 mi11:15:121:14:446:0118:52
6:04
#1033
Half
13.11 mi11:19:151:18:476:014:03
5:56
#1021
25K
15.53 mi11:34:041:33:366:0214:49
6:07
#1023
30K
18.64 mi11:53:361:53:086:0419:32
6:17
#1028
20M
20.00 mi12:02:242:01:566:068:48
6:29
#1035
21M
21.00 mi12:09:232:08:556:086:59
6:59
#1061
35K
21.75 mi12:14:052:13:376:094:42
6:17
#1064
23M
23.00 mi12:22:382:22:106:118:33
6:50
#1112
24M
24.00 mi12:29:192:28:516:126:41
6:41
#1151
40K
24.85 mi12:35:122:34:446:145:53
6:53
#1192
25.2M
25.20 mi12:37:582:37:306:152:46
8:01
#1234
Finish
26.22 mi12:44:462:44:186:166:48
6:40
#1293
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi10439849841028(Top 4%)973(Top 6%)973(Top 17%)
10K6.21 mi3.10 mi1039+4979+5979+51094(Top 4%)1032(Top 6%)1032(Top 18%)
15K9.32 mi3.11 mi1030+9972+7972+71028(Top 4%)973(Top 6%)973(Top 17%)
20K12.43 mi3.11 mi1033-3973-1973-11074(Top 4%)1013(Top 6%)1013(Top 18%)
Half13.11 mi0.68 mi1021+12961+12961+12954(Top 3%)904(Top 6%)904(Top 16%)
25K15.53 mi2.42 mi1023-2963-2963-21133(Top 4%)1069(Top 7%)1069(Top 19%)
30K18.64 mi3.11 mi1028-5968-5968-51166(Top 4%)1100(Top 7%)1100(Top 19%)
20M20.00 mi1.36 mi1035-7974-6974-61522(Top 5%)1437(Top 9%)1437(Top 25%)
21M21.00 mi1.00 mi1061-26999-25999-252170(Top 8%)2026(Top 13%)2026(Top 36%)
35K21.75 mi0.75 mi1064-31001-21001-21516(Top 5%)1426(Top 9%)1426(Top 25%)
23M23.00 mi1.25 mi1112-481047-461047-462824(Top 10%)2586(Top 16%)2586(Top 46%)
24M24.00 mi1.00 mi1151-391085-381085-382862(Top 10%)2602(Top 16%)2602(Top 46%)
40K24.85 mi0.85 mi1192-411122-371122-373216(Top 11%)2868(Top 18%)2868(Top 51%)
25.2M25.20 mi0.35 mi1234-421160-381160-385937(Top 21%)4663(Top 29%)4663(Top 83%)
Finish26.22 mi1.02 mi1293-591215-551215-553691(Top 13%)3196(Top 20%)3196(Top 57%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1028

Males

973

M18-39

973

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1094

Males

1032

M18-39

1032

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1028

Males

973

M18-39

973

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1074

Males

1013

M18-39

1013

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

954

Males

904

M18-39

904

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1133

Males

1069

M18-39

1069

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1166

Males

1100

M18-39

1100

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1522

Males

1437

M18-39

1437

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2170

Males

2026

M18-39

2026

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1516

Males

1426

M18-39

1426

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2824

Males

2586

M18-39

2586

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2862

Males

2602

M18-39

2602

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3216

Males

2868

M18-39

2868

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5937

Males

4663

M18-39

4663

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3691

Males

3196

M18-39

3196

Passing Analysis

Category:
Athletes Passed
298
Passed By
548
Net Change
-250
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1043
5K → 10K4844+4#1043#1039
10K → 15K3526+9#1039#1030
15K → 20K3134-3#1030#1033
20K → Half120+12#1033#1021
Half → 25K2426-2#1021#1023
25K → 30K4550-5#1023#1028
30K → 20M2633-7#1028#1035
20M → 21M1339-26#1035#1061
21M → 35K1922-3#1061#1064
35K → 23M2573-48#1064#1112
23M → 24M746-39#1112#1151
24M → 40K546-41#1151#1192
40K → 25.2M244-42#1192#1234
25.2M → Finish665-59#1234#1293
TOTALS298548-250
📊

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