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BOSTON MARATHON 2025

Paul Larosa

Bib: 5727•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 35%
Gender (Male)
#0 / 16105
Top 48%
Masters (Masters Men)
#0 / 10463
Top 37%
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:40
Rank: #10315
Start → 5K
22:40 | 7:18/mi
10K· 6.21 mi
45:41
Rank: #10784 (-469)
5K → 10K
23:01 | 7:25/mi
15K· 9.32 mi
1:08:41
Rank: #10793 (-9)
10K → 15K
23:00 | 7:24/mi
20K· 12.43 mi
1:31:48
Rank: #10628 (+165)
15K → 20K
23:07 | 7:26/mi
Half· 13.11 mi
1:36:51
Rank: #10643 (-15)
20K → Half
5:03 | 7:24/mi
25K· 15.53 mi
1:54:51
Rank: #10382 (+261)
Half → 25K
18:00 | 7:25/mi
30K· 18.64 mi
2:18:47
Rank: #10098 (+284)
25K → 30K
23:56 | 7:42/mi
20M
2:29:18
Rank: #9913 (+185)
30K → 20M
10:31 | 7:44/mi
21M
2:37:25
Rank: #9767 (+146)
20M → 21M
8:07 | 8:07/mi
35K· 21.75 mi
2:43:14
Rank: #9790 (-23)
21M → 35K
5:49 | 7:46/mi
23M
2:53:26
Rank: #9854 (-64)
35K → 23M
10:12 | 8:09/mi
24M
3:01:37
Rank: #9949 (-95)
23M → 24M
8:11 | 8:11/mi
40K· 24.85 mi
3:08:45
Rank: #10021 (-72)
24M → 40K
7:08 | 8:21/mi
25.2M
3:11:50
Rank: #10048 (-27)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:19:48
Rank: #10081 (-33)
25.2M → Finish
7:58 | 7:49/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:51
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:42:57
Pace7:51 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:5622:407:1822:40
7:18
-
10K
6.21 mi11:11:5745:417:2123:01
7:25
+0:07
15K
9.32 mi11:34:571:08:417:2223:00
7:24
-0:01
20K
12.43 mi11:58:041:31:487:2323:07
7:26
+0:02
Half
13.11 mi12:03:071:36:517:235:03
7:24
-0:02
25K
15.53 mi12:21:071:54:517:2418:00
7:25
+0:01
30K
18.64 mi12:45:032:18:477:2723:56
7:42
+0:17
20M
20.00 mi12:55:342:29:187:2810:31
7:44
+0:02
21M
21.00 mi13:03:412:37:257:308:07
8:07
+0:23
35K
21.75 mi13:09:302:43:147:305:49
7:46
-0:21
23M
23.00 mi13:19:422:53:267:3210:12
8:09
+0:23
24M
24.00 mi13:27:533:01:377:348:11
8:11
+0:02
40K
24.85 mi13:35:013:08:457:367:08
8:21
+0:10
25.2M
25.20 mi13:38:063:11:507:373:05
8:56
+0:35
Finish
26.22 mi13:46:043:19:487:387:58
7:49
-1:07

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

7:18 /mi

Average Pace

7:38 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:51

57% of race

Time at Steady Pace

48:14

24% of race

Time at Slower Pace

36:43

18% of race

Average Pace: 7:37 /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 mi10:48:5622:407:1822:40
7:18
#10315
10K
6.21 mi11:11:5745:417:2123:01
7:25
#10784
15K
9.32 mi11:34:571:08:417:2223:00
7:24
#10793
20K
12.43 mi11:58:041:31:487:2323:07
7:26
#10628
Half
13.11 mi12:03:071:36:517:235:03
7:24
#10643
25K
15.53 mi12:21:071:54:517:2418:00
7:25
#10382
30K
18.64 mi12:45:032:18:477:2723:56
7:42
#10098
20M
20.00 mi12:55:342:29:187:2810:31
7:44
#9913
21M
21.00 mi13:03:412:37:257:308:07
8:07
#9767
35K
21.75 mi13:09:302:43:147:305:49
7:46
#9790
23M
23.00 mi13:19:422:53:267:3210:12
8:09
#9854
24M
24.00 mi13:27:533:01:377:348:11
8:11
#9949
40K
24.85 mi13:35:013:08:457:367:08
8:21
#10021
25.2M
25.20 mi13:38:063:11:507:373:05
8:56
#10048
Finish
26.22 mi13:46:043:19:487:387:58
7:49
#10081
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi103158339833910890(Top 38%)8538(Top 53%)8538(Top 358%)
10K6.21 mi3.10 mi10784-4698558-2198558-21911245(Top 40%)8773(Top 54%)8773(Top 368%)
15K9.32 mi3.11 mi10793-98542+168542+1610890(Top 38%)8538(Top 53%)8538(Top 358%)
20K12.43 mi3.11 mi10628+1658436+1068436+10610240(Top 36%)8131(Top 50%)8131(Top 341%)
Half13.11 mi0.68 mi10643-158449-138449-1310816(Top 38%)8441(Top 52%)8441(Top 354%)
25K15.53 mi2.42 mi10382+2618277+1728277+1729330(Top 33%)7521(Top 47%)7521(Top 315%)
30K18.64 mi3.11 mi10098+2848061+2168061+2169217(Top 32%)7266(Top 45%)7266(Top 305%)
20M20.00 mi1.36 mi9913+1857939+1227939+1228623(Top 30%)6802(Top 42%)6802(Top 285%)
21M21.00 mi1.00 mi9767+1467830+1097830+1098056(Top 28%)6291(Top 39%)6291(Top 264%)
35K21.75 mi0.75 mi9790-237812+187812+1810585(Top 37%)7654(Top 48%)7654(Top 321%)
23M23.00 mi1.25 mi9854-647790+227790+2211007(Top 39%)7752(Top 48%)7752(Top 325%)
24M24.00 mi1.00 mi9949-957809-197809-1912428(Top 44%)8379(Top 52%)8379(Top 351%)
40K24.85 mi0.85 mi10021-727813-47813-412378(Top 44%)8218(Top 51%)8218(Top 344%)
25.2M25.20 mi0.35 mi10048-277805+87805+811399(Top 40%)7659(Top 48%)7659(Top 321%)
Finish26.22 mi1.02 mi10081-337796+97796+911536(Top 41%)7781(Top 48%)7781(Top 326%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10890

Males

8538

M45-49

8538

5K→10K

3.1 - 6.2 mi

Top 40%
×5stories
+79ft-138ft

Overall

11245

Males

8773

M45-49

8773

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10890

Males

8538

M45-49

8538

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

10240

Males

8131

M45-49

8131

20K→Half

12.4 - 13.1 mi

Top 38%
×2stories
+19ft-37ft

Overall

10816

Males

8441

M45-49

8441

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

9330

Males

7521

M45-49

7521

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

9217

Males

7266

M45-49

7266

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

8623

Males

6802

M45-49

6802

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

8056

Males

6291

M45-49

6291

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

10585

Males

7654

M45-49

7654

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

11007

Males

7752

M45-49

7752

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

12428

Males

8379

M45-49

8379

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12378

Males

8218

M45-49

8218

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11399

Males

7659

M45-49

7659

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

11536

Males

7781

M45-49

7781

Passing Analysis

Category:
Athletes Passed
1963*
Passed By
1724
Net Change
+234
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10315
5K → 10K105574-469#10315#10784
10K → 15K170179-9#10784#10793
15K → 20K24681+165#10793#10628
20K → Half3146-15#10628#10643
Half → 25K30443+261#10643#10382
25K → 30K37287+284#10382#10098
30K → 20M216*31+185#10098#9913
20M → 21M17226+146#9913#9767
21M → 35K6083-23#9767#9790
35K → 23M87151-64#9790#9854
23M → 24M56150-95#9854#9949
24M → 40K55125-72#9949#10021
40K → 25.2M2855-27#10021#10048
25.2M → Finish6193-33#10048#10081
TOTALS1963*1724+234

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing