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BOSTON MARATHON 2025

Alex Censullo

Bib: 4630•M

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 19%
Gender (Male)
#0 / 16105
Top 31%
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
19:31
Rank: #2333
Start → 5K
19:31 | 6:17/mi
10K· 6.21 mi
39:10
Rank: #2441 (-108)
5K → 10K
19:39 | 6:19/mi
15K· 9.32 mi
58:53
Rank: #2493 (-52)
10K → 15K
19:43 | 6:21/mi
20K· 12.43 mi
1:18:49
Rank: #2508 (-15)
15K → 20K
19:56 | 6:25/mi
Half· 13.11 mi
1:23:12
Rank: #2539 (-31)
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:39:20
Rank: #2711 (-172)
Half → 25K
16:08 | 6:39/mi
30K· 18.64 mi
2:03:14
Rank: #3714 (-1003)
25K → 30K
23:54 | 7:42/mi
20M
2:15:06
Rank: #4561 (-847)
30K → 20M
11:52 | 8:44/mi
21M
2:23:52
Rank: #5025 (-464)
20M → 21M
8:46 | 8:46/mi
35K· 21.75 mi
2:29:46
Rank: #5286 (-261)
21M → 35K
5:54 | 7:53/mi
23M
2:39:46
Rank: #5477 (-191)
35K → 23M
10:00 | 7:59/mi
24M
2:47:20
Rank: #5522 (-45)
23M → 24M
7:34 | 7:34/mi
40K· 24.85 mi
2:53:42
Rank: #5502 (+20)
24M → 40K
6:22 | 7:27/mi
25.2M
2:56:24
Rank: #5464 (+38)
40K → 25.2M
2:42 | 7:50/mi
Finish· 26.22 mi
3:03:45
Rank: #5461 (+3)
25.2M → Finish
7:21 | 7:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:12
Pace6:21 /mi
2nd Half
Distance13.11 mi
Time1:40:33
Pace7:40 /mi
📊Positive Split: 20.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3219:316:1719:31
6:17
-
10K
6.21 mi10:42:1139:106:1819:39
6:19
+0:02
15K
9.32 mi11:01:5458:536:1919:43
6:21
+0:02
20K
12.43 mi11:21:501:18:496:2119:56
6:25
+0:04
Half
13.11 mi11:26:131:23:126:214:23
6:25
0:00
25K
15.53 mi11:42:211:39:206:2416:08
6:39
+0:14
30K
18.64 mi12:06:152:03:146:3723:54
7:42
+1:03
20M
20.00 mi12:18:072:15:066:4511:52
8:44
+1:02
21M
21.00 mi12:26:532:23:526:518:46
8:46
+0:02
35K
21.75 mi12:32:472:29:466:535:54
7:53
-0:53
23M
23.00 mi12:42:472:39:466:5710:00
7:59
+0:06
24M
24.00 mi12:50:212:47:206:587:34
7:34
-0:25
40K
24.85 mi12:56:432:53:426:596:22
7:27
-0:07
25.2M
25.20 mi12:59:252:56:247:002:42
7:50
+0:23
Finish
26.22 mi13:06:463:03:457:017:21
7:13
-0:37

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

6:17 /mi

Average Pace

7:01 /mi

Slowest Pace

8:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:20

54% of race

Time at Steady Pace

47:53

26% of race

Time at Slower Pace

36:32

20% 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 mi10:22:3219:316:1719:31
6:17
#2333
10K
6.21 mi10:42:1139:106:1819:39
6:19
#2441
15K
9.32 mi11:01:5458:536:1919:43
6:21
#2493
20K
12.43 mi11:21:501:18:496:2119:56
6:25
#2508
Half
13.11 mi11:26:131:23:126:214:23
6:25
#2539
25K
15.53 mi11:42:211:39:206:2416:08
6:39
#2711
30K
18.64 mi12:06:152:03:146:3723:54
7:42
#3714
20M
20.00 mi12:18:072:15:066:4511:52
8:44
#4561
21M
21.00 mi12:26:532:23:526:518:46
8:46
#5025
35K
21.75 mi12:32:472:29:466:535:54
7:53
#5286
23M
23.00 mi12:42:472:39:466:5710:00
7:59
#5477
24M
24.00 mi12:50:212:47:206:587:34
7:34
#5522
40K
24.85 mi12:56:432:53:426:596:22
7:27
#5502
25.2M
25.20 mi12:59:252:56:247:002:42
7:50
#5464
Finish
26.22 mi13:06:463:03:457:017:21
7:13
#5461
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2333222722272626(Top 9%)2506(Top 16%)2506(Top 44%)
10K6.21 mi3.10 mi2441-1082328-1012328-1012582(Top 9%)2466(Top 15%)2466(Top 44%)
15K9.32 mi3.11 mi2493-522379-512379-512626(Top 9%)2506(Top 16%)2506(Top 44%)
20K12.43 mi3.11 mi2508-152393-142393-142622(Top 9%)2499(Top 16%)2499(Top 44%)
Half13.11 mi0.68 mi2539-312425-322425-323280(Top 12%)3121(Top 19%)3121(Top 55%)
25K15.53 mi2.42 mi2711-1722587-1622587-1623831(Top 13%)3591(Top 22%)3591(Top 64%)
30K18.64 mi3.11 mi3714-10033504-9173504-9179125(Top 32%)7202(Top 45%)7202(Top 128%)
20M20.00 mi1.36 mi4561-8474232-7284232-72815227(Top 54%)10013(Top 62%)10013(Top 177%)
21M21.00 mi1.00 mi5025-4644622-3904622-39012046(Top 42%)8382(Top 52%)8382(Top 149%)
35K21.75 mi0.75 mi5286-2614836-2144836-21411393(Top 40%)8027(Top 50%)8027(Top 142%)
23M23.00 mi1.25 mi5477-1914977-1414977-1419904(Top 35%)7179(Top 45%)7179(Top 127%)
24M24.00 mi1.00 mi5522-454997-204997-208129(Top 29%)6187(Top 38%)6187(Top 110%)
40K24.85 mi0.85 mi5502+204968+294968+296465(Top 23%)5121(Top 32%)5121(Top 91%)
25.2M25.20 mi0.35 mi5464+384931+374931+375039(Top 18%)4156(Top 26%)4156(Top 74%)
Finish26.22 mi1.02 mi5461+34914+174914+177099(Top 25%)5386(Top 33%)5386(Top 95%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2626

Males

2506

M18-39

2506

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2582

Males

2466

M18-39

2466

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2626

Males

2506

M18-39

2506

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2622

Males

2499

M18-39

2499

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3280

Males

3121

M18-39

3121

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3831

Males

3591

M18-39

3591

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

9125

Males

7202

M18-39

7202

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

15227

Males

10013

M18-39

10013

20M→21M

20.0 - 21.0 mi

Top 42%
×8stories
+106ft-24ft

Overall

12046

Males

8382

M18-39

8382

21M→35K

21.0 - 21.8 mi

Top 40%
×7stories
+17ft-86ft

Overall

11393

Males

8027

M18-39

8027

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9904

Males

7179

M18-39

7179

23M→24M

23.0 - 24.0 mi

Top 29%
×6stories
+12ft-82ft

Overall

8129

Males

6187

M18-39

6187

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6465

Males

5121

M18-39

5121

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

5039

Males

4156

M18-39

4156

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

7099

Males

5386

M18-39

5386

Passing Analysis

Category:
Athletes Passed
500
Passed By
3628
Net Change
-3128
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2333
5K → 10K63171-108#2333#2441
10K → 15K68120-52#2441#2493
15K → 20K6984-15#2493#2508
20K → Half637-31#2508#2539
Half → 25K24196-172#2539#2711
25K → 30K51008-1003#2711#3714
30K → 20M5852-847#3714#4561
20M → 21M12476-464#4561#5025
21M → 35K12273-261#5025#5286
35K → 23M41232-191#5286#5477
23M → 24M3883-45#5477#5522
24M → 40K5636+20#5522#5502
40K → 25.2M5416+38#5502#5464
25.2M → Finish4744+3#5464#5461
TOTALS5003628-3128
📊

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