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BOSTON MARATHON 2025

Sam Decker

Bib: 2924•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 7%
Gender (Male)
#0 / 16105
Top 12%
Masters (Masters Men)
#0 / 10463
Top 3%
Division (M40-44)
#0 / 2247
Top 10%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:51
Rank: #1300
Start → 5K
18:51 | 6:04/mi
10K· 6.21 mi
37:52
Rank: #1405 (-105)
5K → 10K
19:01 | 6:07/mi
15K· 9.32 mi
56:38
Rank: #1299 (+106)
10K → 15K
18:46 | 6:02/mi
20K· 12.43 mi
1:15:38
Rank: #1269 (+30)
15K → 20K
19:00 | 6:07/mi
Half· 13.11 mi
1:19:49
Rank: #1283 (-14)
20K → Half
4:11 | 6:08/mi
25K· 15.53 mi
1:34:58
Rank: #1326 (-43)
Half → 25K
15:09 | 6:15/mi
30K· 18.64 mi
1:55:17
Rank: #1421 (-95)
25K → 30K
20:19 | 6:32/mi
20M
2:04:23
Rank: #1459 (-38)
30K → 20M
9:06 | 6:42/mi
21M
2:11:27
Rank: #1486 (-27)
20M → 21M
7:04 | 7:04/mi
35K· 21.75 mi
2:16:49
Rank: #1619 (-133)
21M → 35K
5:22 | 7:10/mi
23M
2:25:38
Rank: #1695 (-76)
35K → 23M
8:49 | 7:03/mi
24M
2:32:27
Rank: #1740 (-45)
23M → 24M
6:49 | 6:49/mi
40K· 24.85 mi
2:39:13
Rank: #1942 (-202)
24M → 40K
6:46 | 7:55/mi
25.2M
2:41:46
Rank: #1943 (-1)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:48:37
Rank: #1988 (-45)
25.2M → Finish
6:51 | 6:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:49
Pace6:05 /mi
2nd Half
Distance13.11 mi
Time1:28:48
Pace6:46 /mi
📊Positive Split: 11.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:3718:516:0418:51
6:04
-
10K
6.21 mi10:39:3837:526:0619:01
6:07
+0:03
15K
9.32 mi10:58:2456:386:0518:46
6:02
-0:05
20K
12.43 mi11:17:241:15:386:0519:00
6:07
+0:05
Half
13.11 mi11:21:351:19:496:054:11
6:08
+0:01
25K
15.53 mi11:36:441:34:586:0715:09
6:15
+0:07
30K
18.64 mi11:57:031:55:176:1120:19
6:32
+0:17
20M
20.00 mi12:06:092:04:236:139:06
6:42
+0:10
21M
21.00 mi12:13:132:11:276:167:04
7:04
+0:22
35K
21.75 mi12:18:352:16:496:175:22
7:10
+0:06
23M
23.00 mi12:27:242:25:386:208:49
7:03
-0:07
24M
24.00 mi12:34:132:32:276:216:49
6:49
-0:14
40K
24.85 mi12:40:592:39:136:246:46
7:55
+1:06
25.2M
25.20 mi12:43:322:41:466:252:33
7:24
-0:31
Finish
26.22 mi12:50:232:48:376:266:51
6:43
-0:41

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

6:02 /mi

Average Pace

6:26 /mi

Slowest Pace

7:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:58

56% of race

Time at Steady Pace

43:05

26% of race

Time at Slower Pace

30:34

18% of race

Average Pace: 6:26 /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 mi10:20:3718:516:0418:51
6:04
#1300
10K
6.21 mi10:39:3837:526:0619:01
6:07
#1405
15K
9.32 mi10:58:2456:386:0518:46
6:02
#1299
20K
12.43 mi11:17:241:15:386:0519:00
6:07
#1269
Half
13.11 mi11:21:351:19:496:054:11
6:08
#1283
25K
15.53 mi11:36:441:34:586:0715:09
6:15
#1326
30K
18.64 mi11:57:031:55:176:1120:19
6:32
#1421
20M
20.00 mi12:06:092:04:236:139:06
6:42
#1459
21M
21.00 mi12:13:132:11:276:167:04
7:04
#1486
35K
21.75 mi12:18:352:16:496:175:22
7:10
#1619
23M
23.00 mi12:27:242:25:386:208:49
7:03
#1695
24M
24.00 mi12:34:132:32:276:216:49
6:49
#1740
40K
24.85 mi12:40:592:39:136:246:46
7:55
#1942
25.2M
25.20 mi12:43:322:41:466:252:33
7:24
#1943
Finish
26.22 mi12:50:232:48:376:266:51
6:43
#1988
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1300123512351168(Top 4%)1106(Top 7%)1106(Top 49%)
10K6.21 mi3.10 mi1405-1051336-1011336-1011550(Top 5%)1473(Top 9%)1473(Top 66%)
15K9.32 mi3.11 mi1299+1061234+1021234+1021168(Top 4%)1106(Top 7%)1106(Top 49%)
20K12.43 mi3.11 mi1269+301201+331201+331233(Top 4%)1168(Top 7%)1168(Top 52%)
Half13.11 mi0.68 mi1283-141214-131214-131659(Top 6%)1578(Top 10%)1578(Top 70%)
25K15.53 mi2.42 mi1326-431255-411255-411642(Top 6%)1562(Top 10%)1562(Top 70%)
30K18.64 mi3.11 mi1421-951345-901345-902142(Top 8%)2032(Top 13%)2032(Top 90%)
20M20.00 mi1.36 mi1459-381379-341379-342422(Top 9%)2283(Top 14%)2283(Top 102%)
21M21.00 mi1.00 mi1486-271406-271406-272506(Top 9%)2332(Top 14%)2332(Top 104%)
35K21.75 mi0.75 mi1619-1331535-1291535-1296365(Top 22%)5279(Top 33%)5279(Top 235%)
23M23.00 mi1.25 mi1695-761605-701605-703974(Top 14%)3544(Top 22%)3544(Top 158%)
24M24.00 mi1.00 mi1740-451648-431648-433568(Top 13%)3187(Top 20%)3187(Top 142%)
40K24.85 mi0.85 mi1942-2021840-1921840-1929500(Top 33%)6774(Top 42%)6774(Top 301%)
25.2M25.20 mi0.35 mi1943-11841-11841-12855(Top 10%)2534(Top 16%)2534(Top 113%)
Finish26.22 mi1.02 mi1988-451884-431884-433974(Top 14%)3407(Top 21%)3407(Top 152%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1168

Males

1106

M40-44

1106

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1550

Males

1473

M40-44

1473

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1168

Males

1106

M40-44

1106

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1233

Males

1168

M40-44

1168

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1659

Males

1578

M40-44

1578

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1642

Males

1562

M40-44

1562

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2142

Males

2032

M40-44

2032

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2422

Males

2283

M40-44

2283

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2506

Males

2332

M40-44

2332

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

6365

Males

5279

M40-44

5279

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3974

Males

3544

M40-44

3544

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3568

Males

3187

M40-44

3187

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9500

Males

6774

M40-44

6774

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2855

Males

2534

M40-44

2534

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3974

Males

3407

M40-44

3407

Passing Analysis

Category:
Athletes Passed
394
Passed By
1082
Net Change
-688
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1300
5K → 10K30135-105#1300#1405
10K → 15K1159+106#1405#1299
15K → 20K5828+30#1299#1269
20K → Half418-14#1269#1283
Half → 25K3477-43#1283#1326
25K → 30K28123-95#1326#1421
30K → 20M2462-38#1421#1459
20M → 21M1845-27#1459#1486
21M → 35K5138-133#1486#1619
35K → 23M26102-76#1619#1695
23M → 24M1964-45#1695#1740
24M → 40K5207-202#1740#1942
40K → 25.2M1213-1#1942#1943
25.2M → Finish1661-45#1943#1988
TOTALS3941082-688
📊

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