Boston Marathon logo
BOSTON MARATHON 2025

Alex Manfredi

Bib: 3722•M

NY

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 13%
Gender (Male)
#0 / 16105
Top 21%
Division (M18-39)
#0 / 5642
Top 45%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:51
Rank: #5525
Start → 5K
20:51 | 6:43/mi
10K· 6.21 mi
41:34
Rank: #5255 (+270)
5K → 10K
20:43 | 6:40/mi
15K· 9.32 mi
1:01:53
Rank: #4700 (+555)
10K → 15K
20:19 | 6:32/mi
20K· 12.43 mi
1:22:04
Rank: #4194 (+506)
15K → 20K
20:11 | 6:30/mi
Half· 13.11 mi
1:26:27
Rank: #4117 (+77)
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:42:02
Rank: #3804 (+313)
Half → 25K
15:35 | 6:26/mi
30K· 18.64 mi
2:02:34
Rank: #3496 (+308)
25K → 30K
20:32 | 6:37/mi
20M
2:11:58
Rank: #3465 (+31)
30K → 20M
9:24 | 6:55/mi
21M
2:19:13
Rank: #3423 (+42)
20M → 21M
7:15 | 7:15/mi
35K· 21.75 mi
2:24:13
Rank: #3396 (+27)
21M → 35K
5:00 | 6:41/mi
23M
2:33:20
Rank: #3450 (-54)
35K → 23M
9:07 | 7:17/mi
24M
2:40:33
Rank: #3530 (-80)
23M → 24M
7:13 | 7:13/mi
40K· 24.85 mi
2:46:52
Rank: #3622 (-92)
24M → 40K
6:19 | 7:23/mi
25.2M
2:49:42
Rank: #3652 (-30)
40K → 25.2M
2:50 | 8:13/mi
Finish· 26.22 mi
2:56:44
Rank: #3678 (-26)
25.2M → Finish
7:02 | 6:54/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
Time1:26:27
Pace6:36 /mi
2nd Half
Distance13.11 mi
Time1:30:17
Pace6:53 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5720:516:4320:51
6:43
-
10K
6.21 mi10:43:4041:346:4120:43
6:40
-0:03
15K
9.32 mi11:03:591:01:536:3820:19
6:32
-0:08
20K
12.43 mi11:24:101:22:046:3620:11
6:30
-0:02
Half
13.11 mi11:28:331:26:276:364:23
6:25
-0:05
25K
15.53 mi11:44:081:42:026:3415:35
6:26
+0:01
30K
18.64 mi12:04:402:02:346:3520:32
6:37
+0:11
20M
20.00 mi12:14:042:11:586:369:24
6:55
+0:18
21M
21.00 mi12:21:192:19:136:387:15
7:15
+0:20
35K
21.75 mi12:26:192:24:136:385:00
6:41
-0:34
23M
23.00 mi12:35:262:33:206:409:07
7:17
+0:36
24M
24.00 mi12:42:392:40:336:417:13
7:13
-0:04
40K
24.85 mi12:48:582:46:526:436:19
7:23
+0:10
25.2M
25.20 mi12:51:482:49:426:442:50
8:13
+0:50
Finish
26.22 mi12:58:502:56:446:457:02
6:54
-1:19

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

6:25 /mi

Average Pace

6:45 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

19:58

11% of race

Time at Steady Pace

2:04:02

70% of race

Time at Slower Pace

32:44

19% of race

Average Pace: 6:44 /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 mi10:22:5720:516:4320:51
6:43
#5525
10K
6.21 mi10:43:4041:346:4120:43
6:40
#5255
15K
9.32 mi11:03:591:01:536:3820:19
6:32
#4700
20K
12.43 mi11:24:101:22:046:3620:11
6:30
#4194
Half
13.11 mi11:28:331:26:276:364:23
6:25
#4117
25K
15.53 mi11:44:081:42:026:3415:35
6:26
#3804
30K
18.64 mi12:04:402:02:346:3520:32
6:37
#3496
20M
20.00 mi12:14:042:11:586:369:24
6:55
#3465
21M
21.00 mi12:21:192:19:136:387:15
7:15
#3423
35K
21.75 mi12:26:192:24:136:385:00
6:41
#3396
23M
23.00 mi12:35:262:33:206:409:07
7:17
#3450
24M
24.00 mi12:42:392:40:336:417:13
7:13
#3530
40K
24.85 mi12:48:582:46:526:436:19
7:23
#3622
25.2M
25.20 mi12:51:482:49:426:442:50
8:13
#3652
Finish
26.22 mi12:58:502:56:446:457:02
6:54
#3678
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5525511551153805(Top 13%)3590(Top 22%)3590(Top 64%)
10K6.21 mi3.10 mi5255+2704883+2324883+2325034(Top 18%)4691(Top 29%)4691(Top 83%)
15K9.32 mi3.11 mi4700+5554399+4844399+4843805(Top 13%)3590(Top 22%)3590(Top 64%)
20K12.43 mi3.11 mi4194+5063945+4543945+4543107(Top 11%)2950(Top 18%)2950(Top 52%)
Half13.11 mi0.68 mi4117+773873+723873+723203(Top 11%)3044(Top 19%)3044(Top 54%)
25K15.53 mi2.42 mi3804+3133585+2883585+2882496(Top 9%)2374(Top 15%)2374(Top 42%)
30K18.64 mi3.11 mi3496+3083307+2783307+2782445(Top 9%)2315(Top 14%)2315(Top 41%)
20M20.00 mi1.36 mi3465+313274+333274+333595(Top 13%)3311(Top 21%)3311(Top 59%)
21M21.00 mi1.00 mi3423+423234+403234+403352(Top 12%)3074(Top 19%)3074(Top 54%)
35K21.75 mi0.75 mi3396+273205+293205+293379(Top 12%)3078(Top 19%)3078(Top 55%)
23M23.00 mi1.25 mi3450-543249-443249-445310(Top 19%)4521(Top 28%)4521(Top 80%)
24M24.00 mi1.00 mi3530-803312-633312-635884(Top 21%)4832(Top 30%)4832(Top 86%)
40K24.85 mi0.85 mi3622-923382-703382-706082(Top 21%)4882(Top 30%)4882(Top 87%)
25.2M25.20 mi0.35 mi3652-303407-253407-257030(Top 25%)5320(Top 33%)5320(Top 94%)
Finish26.22 mi1.02 mi3678-263423-163423-165052(Top 18%)4140(Top 26%)4140(Top 73%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3805

Males

3590

M18-39

3590

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

5034

Males

4691

M18-39

4691

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3805

Males

3590

M18-39

3590

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

3107

Males

2950

M18-39

2950

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3203

Males

3044

M18-39

3044

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2496

Males

2374

M18-39

2374

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2445

Males

2315

M18-39

2315

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3595

Males

3311

M18-39

3311

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3352

Males

3074

M18-39

3074

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3379

Males

3078

M18-39

3078

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5310

Males

4521

M18-39

4521

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5884

Males

4832

M18-39

4832

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

6082

Males

4882

M18-39

4882

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

7030

Males

5320

M18-39

5320

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

5052

Males

4140

M18-39

4140

Passing Analysis

Category:
Athletes Passed
2473
Passed By
626
Net Change
+1847
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5525
5K → 10K34373+270#5525#5255
10K → 15K5649+555#5255#4700
15K → 20K5060+506#4700#4194
20K → Half781+77#4194#4117
Half → 25K3141+313#4117#3804
25K → 30K3157+308#3804#3496
30K → 20M7645+31#3496#3465
20M → 21M7432+42#3465#3423
21M → 35K4821+27#3423#3396
35K → 23M4498-54#3396#3450
23M → 24M28108-80#3450#3530
24M → 40K23115-92#3530#3622
40K → 25.2M1545-30#3622#3652
25.2M → Finish4571-26#3652#3678
TOTALS2473626+1847
📊

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