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BOSTON MARATHON 2025

Luis De Castro

Bib: 6161•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 16%
Masters (Masters Men)
#0 / 10463
Top 5%
Division (M50-54)
#0 / 1996
Top 2%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:01
Rank: #3424
Start → 5K
20:01 | 6:27/mi
10K· 6.21 mi
39:49
Rank: #3128 (+296)
5K → 10K
19:48 | 6:22/mi
15K· 9.32 mi
59:38
Rank: #2997 (+131)
10K → 15K
19:49 | 6:23/mi
20K· 12.43 mi
1:20:04
Rank: #3123 (-126)
15K → 20K
20:26 | 6:35/mi
Half· 13.11 mi
1:24:23
Rank: #3099 (+24)
20K → Half
4:19 | 6:20/mi
25K· 15.53 mi
1:40:19
Rank: #3104 (-5)
Half → 25K
15:56 | 6:34/mi
30K· 18.64 mi
2:01:19
Rank: #3098 (+6)
25K → 30K
21:00 | 6:46/mi
20M
2:10:35
Rank: #3042 (+56)
30K → 20M
9:16 | 6:49/mi
21M
2:17:41
Rank: #2988 (+54)
20M → 21M
7:06 | 7:06/mi
35K· 21.75 mi
2:22:30
Rank: #2915 (+73)
21M → 35K
4:49 | 6:26/mi
23M
2:30:51
Rank: #2822 (+93)
35K → 23M
8:21 | 6:40/mi
24M
2:37:24
Rank: #2763 (+59)
23M → 24M
6:33 | 6:33/mi
40K· 24.85 mi
2:43:03
Rank: #2702 (+61)
24M → 40K
5:39 | 6:36/mi
25.2M
2:45:38
Rank: #2698 (+4)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
2:52:23
Rank: #2701 (-3)
25.2M → Finish
6:45 | 6:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:23
Pace6:26 /mi
2nd Half
Distance13.11 mi
Time1:28:00
Pace6:43 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5620:016:2720:01
6:27
-
10K
6.21 mi10:44:4439:496:2419:48
6:22
-0:05
15K
9.32 mi11:04:3359:386:2419:49
6:23
+0:01
20K
12.43 mi11:24:591:20:046:2720:26
6:35
+0:12
Half
13.11 mi11:29:181:24:236:264:19
6:20
-0:15
25K
15.53 mi11:45:141:40:196:2715:56
6:34
+0:14
30K
18.64 mi12:06:142:01:196:3021:00
6:46
+0:12
20M
20.00 mi12:15:302:10:356:329:16
6:49
+0:03
21M
21.00 mi12:22:362:17:416:337:06
7:06
+0:17
35K
21.75 mi12:27:252:22:306:334:49
6:26
-0:40
23M
23.00 mi12:35:462:30:516:348:21
6:40
+0:14
24M
24.00 mi12:42:192:37:246:346:33
6:33
-0:07
40K
24.85 mi12:47:582:43:036:345:39
6:36
+0:03
25.2M
25.20 mi12:50:332:45:386:342:35
7:29
+0:53
Finish
26.22 mi12:57:182:52:236:356:45
6:37
-0:52

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

6:20 /mi

Average Pace

6:35 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:42

94% of race

Time at Steady Pace

7:06

4% of race

Time at Slower Pace

2:35

1% of race

Average Pace: 6:34 /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 mi10:24:5620:016:2720:01
6:27
#3424
10K
6.21 mi10:44:4439:496:2419:48
6:22
#3128
15K
9.32 mi11:04:3359:386:2419:49
6:23
#2997
20K
12.43 mi11:24:591:20:046:2720:26
6:35
#3123
Half
13.11 mi11:29:181:24:236:264:19
6:20
#3099
25K
15.53 mi11:45:141:40:196:2715:56
6:34
#3104
30K
18.64 mi12:06:142:01:196:3021:00
6:46
#3098
20M
20.00 mi12:15:302:10:356:329:16
6:49
#3042
21M
21.00 mi12:22:362:17:416:337:06
7:06
#2988
35K
21.75 mi12:27:252:22:306:334:49
6:26
#2915
23M
23.00 mi12:35:462:30:516:348:21
6:40
#2822
24M
24.00 mi12:42:192:37:246:346:33
6:33
#2763
40K
24.85 mi12:47:582:43:036:345:39
6:36
#2702
25.2M
25.20 mi12:50:332:45:386:342:35
7:29
#2698
Finish
26.22 mi12:57:182:52:236:356:45
6:37
#2701
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi3424325332532809(Top 10%)2675(Top 17%)2675(Top 134%)
10K6.21 mi3.10 mi3128+2962975+2782975+2782878(Top 10%)2740(Top 17%)2740(Top 137%)
15K9.32 mi3.11 mi2997+1312856+1192856+1192809(Top 10%)2675(Top 17%)2675(Top 134%)
20K12.43 mi3.11 mi3123-1262976-1202976-1203567(Top 13%)3377(Top 21%)3377(Top 169%)
Half13.11 mi0.68 mi3099+242954+222954+222710(Top 10%)2593(Top 16%)2593(Top 130%)
25K15.53 mi2.42 mi3104-52959-52959-53287(Top 12%)3113(Top 19%)3113(Top 156%)
30K18.64 mi3.11 mi3098+62947+122947+123200(Top 11%)2998(Top 19%)2998(Top 150%)
20M20.00 mi1.36 mi3042+562888+592888+593054(Top 11%)2844(Top 18%)2844(Top 142%)
21M21.00 mi1.00 mi2988+542835+532835+532693(Top 9%)2503(Top 16%)2503(Top 125%)
35K21.75 mi0.75 mi2915+732763+722763+722212(Top 8%)2071(Top 13%)2071(Top 104%)
23M23.00 mi1.25 mi2822+932676+872676+872136(Top 8%)1997(Top 12%)1997(Top 100%)
24M24.00 mi1.00 mi2763+592620+562620+562270(Top 8%)2102(Top 13%)2102(Top 105%)
40K24.85 mi0.85 mi2702+612560+602560+602021(Top 7%)1864(Top 12%)1864(Top 93%)
25.2M25.20 mi0.35 mi2698+42555+52555+53386(Top 12%)2976(Top 18%)2976(Top 149%)
Finish26.22 mi1.02 mi2701-32556-12556-13480(Top 12%)3049(Top 19%)3049(Top 153%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2809

Males

2675

M50-54

2675

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2878

Males

2740

M50-54

2740

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2809

Males

2675

M50-54

2675

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3567

Males

3377

M50-54

3377

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2710

Males

2593

M50-54

2593

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3287

Males

3113

M50-54

3113

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3200

Males

2998

M50-54

2998

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3054

Males

2844

M50-54

2844

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2693

Males

2503

M50-54

2503

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2212

Males

2071

M50-54

2071

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2136

Males

1997

M50-54

1997

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2270

Males

2102

M50-54

2102

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

2021

Males

1864

M50-54

1864

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3386

Males

2976

M50-54

2976

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3480

Males

3049

M50-54

3049

Passing Analysis

Category:
Athletes Passed
1263
Passed By
540
Net Change
+723
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3424
5K → 10K32832+296#3424#3128
10K → 15K16029+131#3128#2997
15K → 20K49175-126#2997#3123
20K → Half295+24#3123#3099
Half → 25K6166-5#3099#3104
25K → 30K116110+6#3104#3098
30K → 20M8731+56#3098#3042
20M → 21M6612+54#3042#2988
21M → 35K774+73#2988#2915
35K → 23M10310+93#2915#2822
23M → 24M7213+59#2822#2763
24M → 40K7312+61#2763#2702
40K → 25.2M128+4#2702#2698
25.2M → Finish3033-3#2698#2701
TOTALS1263540+723
📊

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