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BOSTON MARATHON 2025

Lelio De Crocci

Bib: 14926•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 45%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 48%
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
25:04
Rank: #17126
Start → 5K
25:04 | 8:04/mi
10K· 6.21 mi
49:09
Rank: #15763 (+1363)
5K → 10K
24:05 | 7:45/mi
15K· 9.32 mi
1:14:06
Rank: #15914 (-151)
10K → 15K
24:57 | 8:02/mi
20K· 12.43 mi
1:38:16
Rank: #15156 (+758)
15K → 20K
24:10 | 7:47/mi
Half· 13.11 mi
1:43:32
Rank: #15067 (+89)
20K → Half
5:16 | 7:43/mi
25K· 15.53 mi
2:03:04
Rank: #14923 (+144)
Half → 25K
19:32 | 8:03/mi
30K· 18.64 mi
2:28:07
Rank: #14242 (+681)
25K → 30K
25:03 | 8:04/mi
20M
2:39:16
Rank: #14011 (+231)
30K → 20M
11:09 | 8:12/mi
21M
2:47:31
Rank: #13666 (+345)
20M → 21M
8:15 | 8:15/mi
35K· 21.75 mi
2:53:14
Rank: #13520 (+146)
21M → 35K
5:43 | 7:38/mi
23M
3:03:17
Rank: #13291 (+229)
35K → 23M
10:03 | 8:02/mi
24M
3:11:13
Rank: #13163 (+128)
23M → 24M
7:56 | 7:56/mi
40K· 24.85 mi
3:17:52
Rank: #12971 (+192)
24M → 40K
6:39 | 7:47/mi
25.2M
3:20:46
Rank: #12889 (+82)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:28:29
Rank: #12740 (+149)
25.2M → Finish
7:43 | 7:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:32
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:44:57
Pace8:00 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:3425:048:0425:04
8:04
-
10K
6.21 mi11:19:3949:097:5524:05
7:45
-0:19
15K
9.32 mi11:44:361:14:067:5724:57
8:02
+0:17
20K
12.43 mi12:08:461:38:167:5424:10
7:47
-0:15
Half
13.11 mi12:14:021:43:327:545:16
7:43
-0:04
25K
15.53 mi12:33:342:03:047:5519:32
8:03
+0:20
30K
18.64 mi12:58:372:28:077:5725:03
8:04
+0:01
20M
20.00 mi13:09:462:39:167:5811:09
8:12
+0:08
21M
21.00 mi13:18:012:47:317:598:15
8:15
+0:03
35K
21.75 mi13:23:442:53:147:585:43
7:38
-0:37
23M
23.00 mi13:33:473:03:177:5810:03
8:02
+0:24
24M
24.00 mi13:41:433:11:137:587:56
7:56
-0:06
40K
24.85 mi13:48:223:17:527:586:39
7:47
-0:09
25.2M
25.20 mi13:51:163:20:467:582:54
8:25
+0:38
Finish
26.22 mi13:58:593:28:297:577:43
7:34
-0:51

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

7:34 /mi

Average Pace

7:57 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:25:35

99% of race

Time at Steady Pace

2:54

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:57 /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 mi10:55:3425:048:0425:04
8:04
#17126
10K
6.21 mi11:19:3949:097:5524:05
7:45
#15763
15K
9.32 mi11:44:361:14:067:5724:57
8:02
#15914
20K
12.43 mi12:08:461:38:167:5424:10
7:47
#15156
Half
13.11 mi12:14:021:43:327:545:16
7:43
#15067
25K
15.53 mi12:33:342:03:047:5519:32
8:03
#14923
30K
18.64 mi12:58:372:28:077:5725:03
8:04
#14242
20M
20.00 mi13:09:462:39:167:5811:09
8:12
#14011
21M
21.00 mi13:18:012:47:317:598:15
8:15
#13666
35K
21.75 mi13:23:442:53:147:585:43
7:38
#13520
23M
23.00 mi13:33:473:03:177:5810:03
8:02
#13291
24M
24.00 mi13:41:433:11:137:587:56
7:56
#13163
40K
24.85 mi13:48:223:17:527:586:39
7:47
#12971
25.2M
25.20 mi13:51:163:20:467:582:54
8:25
#12889
Finish
26.22 mi13:58:593:28:297:577:43
7:34
#12740
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi17126112601126016262(Top 57%)10919(Top 68%)10919(Top 458%)
10K6.21 mi3.10 mi15763+136310717+54310717+54314331(Top 50%)10134(Top 63%)10134(Top 425%)
15K9.32 mi3.11 mi15914-15110774-5710774-5716262(Top 57%)10919(Top 68%)10919(Top 458%)
20K12.43 mi3.11 mi15156+75810438+33610438+33613080(Top 46%)9452(Top 59%)9452(Top 396%)
Half13.11 mi0.68 mi15067+8910403+3510403+3513494(Top 48%)9682(Top 60%)9682(Top 406%)
25K15.53 mi2.42 mi14923+14410299+10410299+10414304(Top 50%)9890(Top 61%)9890(Top 415%)
30K18.64 mi3.11 mi14242+6819955+3449955+34411829(Top 42%)8589(Top 53%)8589(Top 360%)
20M20.00 mi1.36 mi14011+2319822+1339822+13311828(Top 42%)8442(Top 52%)8442(Top 354%)
21M21.00 mi1.00 mi13666+3459642+1809642+1808893(Top 31%)6771(Top 42%)6771(Top 284%)
35K21.75 mi0.75 mi13520+1469558+849558+849638(Top 34%)7192(Top 45%)7192(Top 301%)
23M23.00 mi1.25 mi13291+2299416+1429416+14210214(Top 36%)7347(Top 46%)7347(Top 308%)
24M24.00 mi1.00 mi13163+1289330+869330+8610763(Top 38%)7567(Top 47%)7567(Top 317%)
40K24.85 mi0.85 mi12971+1929222+1089222+1088613(Top 30%)6320(Top 39%)6320(Top 265%)
25.2M25.20 mi0.35 mi12889+829172+509172+508257(Top 29%)6081(Top 38%)6081(Top 255%)
Finish26.22 mi1.02 mi12740+1499084+889084+889727(Top 34%)6838(Top 42%)6838(Top 287%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21stories
+97ft-345ft

Overall

16262

Males

10919

M45-49

10919

5K→10K

3.1 - 6.2 mi

Top 50%
×5stories
+79ft-138ft

Overall

14331

Males

10134

M45-49

10134

10K→15K

6.2 - 9.3 mi

Top 57%
×3stories
+67ft-78ft

Overall

16262

Males

10919

M45-49

10919

15K→20K

9.3 - 12.4 mi

Top 46%
×5stories
+106ft-86ft

Overall

13080

Males

9452

M45-49

9452

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

13494

Males

9682

M45-49

9682

Half→25K

13.1 - 15.5 mi

Top 50%
×4stories
+66ft-88ft

Overall

14304

Males

9890

M45-49

9890

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11829

Males

8589

M45-49

8589

30K→20M

18.6 - 20.0 mi

Top 42%
×5stories
+64ft-50ft

Overall

11828

Males

8442

M45-49

8442

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8893

Males

6771

M45-49

6771

21M→35K

21.0 - 21.8 mi

Top 34%
×7stories
+17ft-86ft

Overall

9638

Males

7192

M45-49

7192

35K→23M

21.8 - 23.0 mi

Top 36%
×5stories
+23ft-63ft

Overall

10214

Males

7347

M45-49

7347

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10763

Males

7567

M45-49

7567

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8613

Males

6320

M45-49

6320

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8257

Males

6081

M45-49

6081

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9727

Males

6838

M45-49

6838

Passing Analysis

Category:
Athletes Passed
4933
Passed By
547
Net Change
+4386
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17126
5K → 10K139229+1363#17126#15763
10K → 15K160311-151#15763#15914
15K → 20K7657+758#15914#15156
20K → Half9910+89#15156#15067
Half → 25K23995+144#15067#14923
25K → 30K69211+681#14923#14242
30K → 20M25221+231#14242#14011
20M → 21M3461+345#14011#13666
21M → 35K1493+146#13666#13520
35K → 23M24112+229#13520#13291
23M → 24M14517+128#13291#13163
24M → 40K1964+192#13163#12971
40K → 25.2M875+82#12971#12889
25.2M → Finish17021+149#12889#12740
TOTALS4933547+4386
📊

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