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BOSTON MARATHON 2025

Ariel Castro

Bib: 7381•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 22%
Gender (Male)
#0 / 16105
Top 34%
Masters (Masters Men)
#0 / 10463
Top 20%
Division (M40-44)
#0 / 2247
Top 46%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:42
Rank: #5117
Start → 5K
20:42 | 6:40/mi
10K· 6.21 mi
41:48
Rank: #5636 (-519)
5K → 10K
21:06 | 6:47/mi
15K· 9.32 mi
1:02:56
Rank: #5720 (-84)
10K → 15K
21:08 | 6:48/mi
20K· 12.43 mi
1:24:08
Rank: #5670 (+50)
15K → 20K
21:12 | 6:49/mi
Half· 13.11 mi
1:28:47
Rank: #5700 (-30)
20K → Half
4:39 | 6:49/mi
25K· 15.53 mi
1:45:47
Rank: #5801 (-101)
Half → 25K
17:00 | 7:01/mi
30K· 18.64 mi
2:08:59
Rank: #6106 (-305)
25K → 30K
23:12 | 7:28/mi
20M
2:19:15
Rank: #6152 (-46)
30K → 20M
10:16 | 7:33/mi
21M
2:27:27
Rank: #6216 (-64)
20M → 21M
8:12 | 8:12/mi
35K· 21.75 mi
2:32:49
Rank: #6183 (+33)
21M → 35K
5:22 | 7:10/mi
23M
2:42:34
Rank: #6226 (-43)
35K → 23M
9:45 | 7:47/mi
24M
2:50:00
Rank: #6212 (+14)
23M → 24M
7:26 | 7:26/mi
40K· 24.85 mi
2:56:39
Rank: #6236 (-24)
24M → 40K
6:39 | 7:47/mi
25.2M
2:59:30
Rank: #6226 (+10)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:06:54
Rank: #6214 (+12)
25.2M → Finish
7:24 | 7:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:47
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:38:07
Pace7:29 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:3620:426:4020:42
6:40
-
10K
6.21 mi10:47:4241:486:4421:06
6:47
+0:07
15K
9.32 mi11:08:501:02:566:4521:08
6:48
+0:01
20K
12.43 mi11:30:021:24:086:4621:12
6:49
+0:01
Half
13.11 mi11:34:411:28:476:464:39
6:49
0:00
25K
15.53 mi11:51:411:45:476:4917:00
7:01
+0:12
30K
18.64 mi12:14:532:08:596:5523:12
7:28
+0:27
20M
20.00 mi12:25:092:19:156:5810:16
7:33
+0:05
21M
21.00 mi12:33:212:27:277:018:12
8:12
+0:39
35K
21.75 mi12:38:432:32:497:025:22
7:10
-1:02
23M
23.00 mi12:48:282:42:347:049:45
7:47
+0:37
24M
24.00 mi12:55:542:50:007:057:26
7:26
-0:21
40K
24.85 mi13:02:332:56:397:066:39
7:47
+0:21
25.2M
25.20 mi13:05:242:59:307:072:51
8:16
+0:29
Finish
26.22 mi13:12:483:06:547:087:24
7:16
-1:00

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

6:40 /mi

Average Pace

7:08 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:47

48% of race

Time at Steady Pace

1:00:24

32% of race

Time at Slower Pace

37:43

20% of race

Average Pace: 7:08 /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 mi10:26:3620:426:4020:42
6:40
#5117
10K
6.21 mi10:47:4241:486:4421:06
6:47
#5636
15K
9.32 mi11:08:501:02:566:4521:08
6:48
#5720
20K
12.43 mi11:30:021:24:086:4621:12
6:49
#5670
Half
13.11 mi11:34:411:28:476:464:39
6:49
#5700
25K
15.53 mi11:51:411:45:476:4917:00
7:01
#5801
30K
18.64 mi12:14:532:08:596:5523:12
7:28
#6106
20M
20.00 mi12:25:092:19:156:5810:16
7:33
#6152
21M
21.00 mi12:33:212:27:277:018:12
8:12
#6216
35K
21.75 mi12:38:432:32:497:025:22
7:10
#6183
23M
23.00 mi12:48:282:42:347:049:45
7:47
#6226
24M
24.00 mi12:55:542:50:007:057:26
7:26
#6212
40K
24.85 mi13:02:332:56:397:066:39
7:47
#6236
25.2M
25.20 mi13:05:242:59:307:072:51
8:16
#6226
Finish
26.22 mi13:12:483:06:547:087:24
7:16
#6214
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5117477347736098(Top 21%)5538(Top 34%)5538(Top 246%)
10K6.21 mi3.10 mi5636-5195208-4355208-4356295(Top 22%)5718(Top 36%)5718(Top 254%)
15K9.32 mi3.11 mi5720-845266-585266-586098(Top 21%)5538(Top 34%)5538(Top 246%)
20K12.43 mi3.11 mi5670+505207+595207+595529(Top 19%)5046(Top 31%)5046(Top 225%)
Half13.11 mi0.68 mi5700-305233-265233-266239(Top 22%)5624(Top 35%)5624(Top 250%)
25K15.53 mi2.42 mi5801-1015301-685301-686391(Top 23%)5684(Top 35%)5684(Top 253%)
30K18.64 mi3.11 mi6106-3055510-2095510-2097502(Top 26%)6274(Top 39%)6274(Top 279%)
20M20.00 mi1.36 mi6152-465537-275537-277360(Top 26%)6042(Top 38%)6042(Top 269%)
21M21.00 mi1.00 mi6216-645578-415578-418546(Top 30%)6554(Top 41%)6554(Top 292%)
35K21.75 mi0.75 mi6183+335542+365542+366400(Top 23%)5314(Top 33%)5314(Top 236%)
23M23.00 mi1.25 mi6226-435548-65548-68464(Top 30%)6412(Top 40%)6412(Top 285%)
24M24.00 mi1.00 mi6212+145523+255523+257212(Top 25%)5645(Top 35%)5645(Top 251%)
40K24.85 mi0.85 mi6236-245517+65517+68562(Top 30%)6269(Top 39%)6269(Top 279%)
25.2M25.20 mi0.35 mi6226+105500+175500+177355(Top 26%)5520(Top 34%)5520(Top 246%)
Finish26.22 mi1.02 mi6214+125468+325468+327448(Top 26%)5581(Top 35%)5581(Top 248%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

6098

Males

5538

M40-44

5538

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

6295

Males

5718

M40-44

5718

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

6098

Males

5538

M40-44

5538

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5529

Males

5046

M40-44

5046

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

6239

Males

5624

M40-44

5624

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6391

Males

5684

M40-44

5684

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

7502

Males

6274

M40-44

6274

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

7360

Males

6042

M40-44

6042

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

8546

Males

6554

M40-44

6554

21M→35K

21.0 - 21.8 mi

Top 23%
×7stories
+17ft-86ft

Overall

6400

Males

5314

M40-44

5314

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

8464

Males

6412

M40-44

6412

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

7212

Males

5645

M40-44

5645

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8562

Males

6269

M40-44

6269

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7355

Males

5520

M40-44

5520

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

7448

Males

5581

M40-44

5581

Passing Analysis

Category:
Athletes Passed
951
Passed By
2048
Net Change
-1097
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5117
5K → 10K42561-519#5117#5636
10K → 15K102186-84#5636#5720
15K → 20K156106+50#5720#5670
20K → Half1545-30#5670#5700
Half → 25K104205-101#5700#5801
25K → 30K90395-305#5801#6106
30K → 20M59105-46#6106#6152
20M → 21M47111-64#6152#6216
21M → 35K5623+33#6216#6183
35K → 23M67110-43#6183#6226
23M → 24M6854+14#6226#6212
24M → 40K4670-24#6212#6236
40K → 25.2M3626+10#6236#6226
25.2M → Finish6351+12#6226#6214
TOTALS9512048-1097
📊

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