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BOSTON MARATHON 2025

Sam Crockett

Bib: 2879•M

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0:00
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Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 13%
Division (M18-39)
#0 / 5642
Top 30%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:49
Rank: #5426
Start → 5K
20:49 | 6:42/mi
10K· 6.21 mi
41:37
Rank: #5326 (+100)
5K → 10K
20:48 | 6:42/mi
15K· 9.32 mi
1:01:48
Rank: #4627 (+699)
10K → 15K
20:11 | 6:30/mi
20K· 12.43 mi
1:22:02
Rank: #4166 (+461)
15K → 20K
20:14 | 6:31/mi
Half· 13.11 mi
1:26:22
Rank: #4058 (+108)
20K → Half
4:20 | 6:21/mi
25K· 15.53 mi
1:41:50
Rank: #3724 (+334)
Half → 25K
15:28 | 6:23/mi
30K· 18.64 mi
2:01:59
Rank: #3286 (+438)
25K → 30K
20:09 | 6:29/mi
20M
2:10:48
Rank: #3098 (+188)
30K → 20M
8:49 | 6:29/mi
21M
2:17:24
Rank: #2914 (+184)
20M → 21M
6:36 | 6:36/mi
35K· 21.75 mi
2:21:51
Rank: #2766 (+148)
21M → 35K
4:27 | 5:57/mi
23M
2:29:39
Rank: #2547 (+219)
35K → 23M
7:48 | 6:14/mi
24M
2:35:45
Rank: #2409 (+138)
23M → 24M
6:06 | 6:06/mi
40K· 24.85 mi
2:41:06
Rank: #2314 (+95)
24M → 40K
5:21 | 6:15/mi
25.2M
2:43:26
Rank: #2275 (+39)
40K → 25.2M
2:20 | 6:46/mi
Finish· 26.22 mi
2:49:32
Rank: #2177 (+98)
25.2M → Finish
6:06 | 5:59/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:26:22
Pace6:35 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:23:10
Pace6:21 /mi
📊Negative Split: 3.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3420:496:4220:49
6:42
-
10K
6.21 mi10:42:2241:376:4220:48
6:42
0:00
15K
9.32 mi11:02:331:01:486:3820:11
6:30
-0:12
20K
12.43 mi11:22:471:22:026:3620:14
6:31
+0:01
Half
13.11 mi11:27:071:26:226:354:20
6:21
-0:10
25K
15.53 mi11:42:351:41:506:3315:28
6:23
+0:02
30K
18.64 mi12:02:442:01:596:3320:09
6:29
+0:06
20M
20.00 mi12:11:332:10:486:328:49
6:29
0:00
21M
21.00 mi12:18:092:17:246:336:36
6:36
+0:07
35K
21.75 mi12:22:362:21:516:314:27
5:57
-0:39
23M
23.00 mi12:30:242:29:396:307:48
6:14
+0:17
24M
24.00 mi12:36:302:35:456:296:06
6:06
-0:08
40K
24.85 mi12:41:512:41:066:295:21
6:15
+0:09
25.2M
25.20 mi12:44:112:43:266:292:20
6:46
+0:31
Finish
26.22 mi12:50:172:49:326:286:06
5:59
-0:47

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

5:57 /mi

Average Pace

6:28 /mi

Slowest Pace

6:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:59

70% of race

Time at Steady Pace

50:33

30% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:28 /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 mi10:21:3420:496:4220:49
6:42
#5426
10K
6.21 mi10:42:2241:376:4220:48
6:42
#5326
15K
9.32 mi11:02:331:01:486:3820:11
6:30
#4627
20K
12.43 mi11:22:471:22:026:3620:14
6:31
#4166
Half
13.11 mi11:27:071:26:226:354:20
6:21
#4058
25K
15.53 mi11:42:351:41:506:3315:28
6:23
#3724
30K
18.64 mi12:02:442:01:596:3320:09
6:29
#3286
20M
20.00 mi12:11:332:10:486:328:49
6:29
#3098
21M
21.00 mi12:18:092:17:246:336:36
6:36
#2914
35K
21.75 mi12:22:362:21:516:314:27
5:57
#2766
23M
23.00 mi12:30:242:29:396:307:48
6:14
#2547
24M
24.00 mi12:36:302:35:456:296:06
6:06
#2409
40K
24.85 mi12:41:512:41:066:295:21
6:15
#2314
25.2M
25.20 mi12:44:112:43:266:292:20
6:46
#2275
Finish
26.22 mi12:50:172:49:326:286:06
5:59
#2177
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5426503650363531(Top 12%)3338(Top 21%)3338(Top 59%)
10K6.21 mi3.10 mi5326+1004937+994937+995281(Top 19%)4893(Top 30%)4893(Top 87%)
15K9.32 mi3.11 mi4627+6994333+6044333+6043531(Top 12%)3338(Top 21%)3338(Top 59%)
20K12.43 mi3.11 mi4166+4613920+4133920+4133185(Top 11%)3020(Top 19%)3020(Top 54%)
Half13.11 mi0.68 mi4058+1083820+1003820+1002745(Top 10%)2621(Top 16%)2621(Top 46%)
25K15.53 mi2.42 mi3724+3343516+3043516+3042248(Top 8%)2138(Top 13%)2138(Top 38%)
30K18.64 mi3.11 mi3286+4383113+4033113+4031911(Top 7%)1820(Top 11%)1820(Top 32%)
20M20.00 mi1.36 mi3098+1882939+1742939+1741578(Top 6%)1492(Top 9%)1492(Top 26%)
21M21.00 mi1.00 mi2914+1842769+1702769+170925(Top 3%)875(Top 5%)875(Top 16%)
35K21.75 mi0.75 mi2766+1482631+1382631+138642(Top 2%)601(Top 4%)601(Top 11%)
23M23.00 mi1.25 mi2547+2192424+2072424+207739(Top 3%)698(Top 4%)698(Top 12%)
24M24.00 mi1.00 mi2409+1382291+1332291+133781(Top 3%)735(Top 5%)735(Top 13%)
40K24.85 mi0.85 mi2314+952201+902201+90880(Top 3%)826(Top 5%)826(Top 15%)
25.2M25.20 mi0.35 mi2275+392162+392162+39911(Top 3%)844(Top 5%)844(Top 15%)
Finish26.22 mi1.02 mi2177+982066+962066+96887(Top 3%)836(Top 5%)836(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3531

Males

3338

M18-39

3338

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5281

Males

4893

M18-39

4893

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3531

Males

3338

M18-39

3338

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

3185

Males

3020

M18-39

3020

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2745

Males

2621

M18-39

2621

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2248

Males

2138

M18-39

2138

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1911

Males

1820

M18-39

1820

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1578

Males

1492

M18-39

1492

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

925

Males

875

M18-39

875

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

642

Males

601

M18-39

601

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

739

Males

698

M18-39

698

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

781

Males

735

M18-39

735

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

880

Males

826

M18-39

826

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

911

Males

844

M18-39

844

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

887

Males

836

M18-39

836

Passing Analysis

Category:
Athletes Passed
3400
Passed By
151
Net Change
+3249
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5426
5K → 10K236136+100#5426#5326
10K → 15K7023+699#5326#4627
15K → 20K4632+461#4627#4166
20K → Half1080+108#4166#4058
Half → 25K3362+334#4058#3724
25K → 30K4402+438#3724#3286
30K → 20M1891+188#3286#3098
20M → 21M1840+184#3098#2914
21M → 35K1480+148#2914#2766
35K → 23M2190+219#2766#2547
23M → 24M1380+138#2547#2409
24M → 40K961+95#2409#2314
40K → 25.2M401+39#2314#2275
25.2M → Finish1013+98#2275#2177
TOTALS3400151+3249
📊

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