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BOSTON MARATHON 2025

Sean Sands

Bib: 1266•M

WA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 6%
Division (M18-39)
#0 / 5642
Top 14%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:23
Rank: #833
Start → 5K
18:23 | 5:55/mi
10K· 6.21 mi
36:12
Rank: #644 (+189)
5K → 10K
17:49 | 5:44/mi
15K· 9.32 mi
54:10
Rank: #593 (+51)
10K → 15K
17:58 | 5:47/mi
20K· 12.43 mi
1:12:12
Rank: #538 (+55)
15K → 20K
18:02 | 5:48/mi
Half· 13.11 mi
1:16:07
Rank: #531 (+7)
20K → Half
3:55 | 5:44/mi
25K· 15.53 mi
1:30:25
Rank: #522 (+9)
Half → 25K
14:18 | 5:54/mi
30K· 18.64 mi
1:50:19
Rank: #633 (-111)
25K → 30K
19:54 | 6:24/mi
20M
1:59:33
Rank: #724 (-91)
30K → 20M
9:14 | 6:48/mi
21M
2:06:50
Rank: #786 (-62)
20M → 21M
7:17 | 7:17/mi
35K· 21.75 mi
2:11:40
Rank: #807 (-21)
21M → 35K
4:50 | 6:28/mi
23M
2:20:14
Rank: #864 (-57)
35K → 23M
8:34 | 6:51/mi
24M
2:26:59
Rank: #928 (-64)
23M → 24M
6:45 | 6:45/mi
40K· 24.85 mi
2:32:45
Rank: #955 (-27)
24M → 40K
5:46 | 6:45/mi
25.2M
2:35:15
Rank: #957 (-2)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:41:44
Rank: #976 (-19)
25.2M → Finish
6:29 | 6:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:16:07
Pace5:48 /mi
2nd Half
Distance13.11 mi
Time1:25:37
Pace6:32 /mi
📊Positive Split: 12.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:4918:235:5518:23
5:55
-
10K
6.21 mi10:36:3836:125:5017:49
5:44
-0:11
15K
9.32 mi10:54:3654:105:4917:58
5:47
+0:03
20K
12.43 mi11:12:381:12:125:4918:02
5:48
+0:01
Half
13.11 mi11:16:331:16:075:483:55
5:44
-0:04
25K
15.53 mi11:30:511:30:255:4914:18
5:54
+0:10
30K
18.64 mi11:50:451:50:195:5519:54
6:24
+0:30
20M
20.00 mi11:59:591:59:335:599:14
6:48
+0:24
21M
21.00 mi12:07:162:06:506:027:17
7:17
+0:29
35K
21.75 mi12:12:062:11:406:034:50
6:28
-0:49
23M
23.00 mi12:20:402:20:146:068:34
6:51
+0:23
24M
24.00 mi12:27:252:26:596:076:45
6:45
-0:06
40K
24.85 mi12:33:112:32:456:095:46
6:45
0:00
25.2M
25.20 mi12:35:412:35:156:102:30
7:15
+0:30
Finish
26.22 mi12:42:102:41:446:106:29
6:22
-0:53

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

5:44 /mi

Average Pace

6:10 /mi

Slowest Pace

7:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:30:25

56% of race

Time at Steady Pace

31:13

19% of race

Time at Slower Pace

40:06

25% of race

Average Pace: 6:10 /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 mi10:18:4918:235:5518:23
5:55
#833
10K
6.21 mi10:36:3836:125:5017:49
5:44
#644
15K
9.32 mi10:54:3654:105:4917:58
5:47
#593
20K
12.43 mi11:12:381:12:125:4918:02
5:48
#538
Half
13.11 mi11:16:331:16:075:483:55
5:44
#531
25K
15.53 mi11:30:511:30:255:4914:18
5:54
#522
30K
18.64 mi11:50:451:50:195:5519:54
6:24
#633
20M
20.00 mi11:59:591:59:335:599:14
6:48
#724
21M
21.00 mi12:07:162:06:506:027:17
7:17
#786
35K
21.75 mi12:12:062:11:406:034:50
6:28
#807
23M
23.00 mi12:20:402:20:146:068:34
6:51
#864
24M
24.00 mi12:27:252:26:596:076:45
6:45
#928
40K
24.85 mi12:33:112:32:456:095:46
6:45
#955
25.2M
25.20 mi12:35:412:35:156:102:30
7:15
#957
Finish
26.22 mi12:42:102:41:446:106:29
6:22
#976
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi833779779499(Top 2%)463(Top 3%)463(Top 8%)
10K6.21 mi3.10 mi644+189598+181598+181510(Top 2%)473(Top 3%)473(Top 8%)
15K9.32 mi3.11 mi593+51550+48550+48499(Top 2%)463(Top 3%)463(Top 8%)
20K12.43 mi3.11 mi538+55499+51499+51450(Top 2%)419(Top 3%)419(Top 7%)
Half13.11 mi0.68 mi531+7493+6493+6484(Top 2%)454(Top 3%)454(Top 8%)
25K15.53 mi2.42 mi522+9483+10483+10574(Top 2%)531(Top 3%)531(Top 9%)
30K18.64 mi3.11 mi633-111586-103586-1031564(Top 6%)1481(Top 9%)1481(Top 26%)
20M20.00 mi1.36 mi724-91677-91677-912866(Top 10%)2675(Top 17%)2675(Top 47%)
21M21.00 mi1.00 mi786-62736-59736-593506(Top 12%)3205(Top 20%)3205(Top 57%)
35K21.75 mi0.75 mi807-21757-21757-212226(Top 8%)2078(Top 13%)2078(Top 37%)
23M23.00 mi1.25 mi864-57810-53810-532882(Top 10%)2637(Top 16%)2637(Top 47%)
24M24.00 mi1.00 mi928-64871-61871-613186(Top 11%)2866(Top 18%)2866(Top 51%)
40K24.85 mi0.85 mi955-27898-27898-272544(Top 9%)2312(Top 14%)2312(Top 41%)
25.2M25.20 mi0.35 mi957-2900-2900-22264(Top 8%)2017(Top 13%)2017(Top 36%)
Finish26.22 mi1.02 mi976-19916-16916-162118(Top 7%)1936(Top 12%)1936(Top 34%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

499

Males

463

M18-39

463

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

510

Males

473

M18-39

473

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

499

Males

463

M18-39

463

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

450

Males

419

M18-39

419

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

484

Males

454

M18-39

454

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

574

Males

531

M18-39

531

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1564

Males

1481

M18-39

1481

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2866

Males

2675

M18-39

2675

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3506

Males

3205

M18-39

3205

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2226

Males

2078

M18-39

2078

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2882

Males

2637

M18-39

2637

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

3186

Males

2866

M18-39

2866

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2544

Males

2312

M18-39

2312

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2264

Males

2017

M18-39

2017

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

2118

Males

1936

M18-39

1936

Passing Analysis

Category:
Athletes Passed
388
Passed By
531
Net Change
-143
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#833
5K → 10K1901+189#833#644
10K → 15K532+51#644#593
15K → 20K561+55#593#538
20K → Half70+7#538#531
Half → 25K2415+9#531#522
25K → 30K9120-111#522#633
30K → 20M192-91#633#724
20M → 21M466-62#724#786
21M → 35K1233-21#786#807
35K → 23M764-57#807#864
23M → 24M165-64#864#928
24M → 40K734-27#928#955
40K → 25.2M911-2#955#957
25.2M → Finish827-19#957#976
TOTALS388531-143
📊

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