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BOSTON MARATHON 2025

Samuel Jackson

Bib: 3845•M

CT

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 17%
Gender (Male)
#0 / 16105
Top 27%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:41
Rank: #5066
Start → 5K
20:41 | 6:39/mi
10K· 6.21 mi
41:04
Rank: #4571 (+495)
5K → 10K
20:23 | 6:34/mi
15K· 9.32 mi
1:01:26
Rank: #4331 (+240)
10K → 15K
20:22 | 6:33/mi
20K· 12.43 mi
1:22:06
Rank: #4223 (+108)
15K → 20K
20:40 | 6:39/mi
Half· 13.11 mi
1:26:36
Rank: #4218 (+5)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:42:56
Rank: #4187 (+31)
Half → 25K
16:20 | 6:44/mi
30K· 18.64 mi
2:04:59
Rank: #4357 (-170)
25K → 30K
22:03 | 7:06/mi
20M
2:15:14
Rank: #4616 (-259)
30K → 20M
10:15 | 7:33/mi
21M
2:23:30
Rank: #4880 (-264)
20M → 21M
8:16 | 8:16/mi
35K· 21.75 mi
2:28:57
Rank: #4959 (-79)
21M → 35K
5:27 | 7:17/mi
23M
2:38:11
Rank: #5028 (-69)
35K → 23M
9:14 | 7:22/mi
24M
2:45:17
Rank: #5031 (-3)
23M → 24M
7:06 | 7:06/mi
40K· 24.85 mi
2:51:11
Rank: #4930 (+101)
24M → 40K
5:54 | 6:54/mi
25.2M
2:53:46
Rank: #4881 (+49)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
3:00:33
Rank: #4809 (+72)
25.2M → Finish
6:47 | 6:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:36
Pace6:36 /mi
2nd Half
Distance13.11 mi
Time1:33:57
Pace7:10 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:1320:416:3920:41
6:39
-
10K
6.21 mi10:44:3641:046:3720:23
6:34
-0:05
15K
9.32 mi11:04:581:01:266:3520:22
6:33
-0:01
20K
12.43 mi11:25:381:22:066:3620:40
6:39
+0:06
Half
13.11 mi11:30:081:26:366:364:30
6:36
-0:03
25K
15.53 mi11:46:281:42:566:3816:20
6:44
+0:08
30K
18.64 mi12:08:312:04:596:4222:03
7:06
+0:22
20M
20.00 mi12:18:462:15:146:4610:15
7:33
+0:27
21M
21.00 mi12:27:022:23:306:508:16
8:16
+0:43
35K
21.75 mi12:32:292:28:576:515:27
7:17
-0:59
23M
23.00 mi12:41:432:38:116:539:14
7:22
+0:05
24M
24.00 mi12:48:492:45:176:537:06
7:06
-0:16
40K
24.85 mi12:54:432:51:116:535:54
6:54
-0:12
25.2M
25.20 mi12:57:182:53:466:542:35
7:29
+0:35
Finish
26.22 mi13:04:053:00:336:536:47
6:39
-0:50

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

6:33 /mi

Average Pace

6:53 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:23

52% of race

Time at Steady Pace

51:23

28% of race

Time at Slower Pace

35:47

20% of race

Average Pace: 6:53 /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 mi10:24:1320:416:3920:41
6:39
#5066
10K
6.21 mi10:44:3641:046:3720:23
6:34
#4571
15K
9.32 mi11:04:581:01:266:3520:22
6:33
#4331
20K
12.43 mi11:25:381:22:066:3620:40
6:39
#4223
Half
13.11 mi11:30:081:26:366:364:30
6:36
#4218
25K
15.53 mi11:46:281:42:566:3816:20
6:44
#4187
30K
18.64 mi12:08:312:04:596:4222:03
7:06
#4357
20M
20.00 mi12:18:462:15:146:4610:15
7:33
#4616
21M
21.00 mi12:27:022:23:306:508:16
8:16
#4880
35K
21.75 mi12:32:292:28:576:515:27
7:17
#4959
23M
23.00 mi12:41:432:38:116:539:14
7:22
#5028
24M
24.00 mi12:48:492:45:176:537:06
7:06
#5031
40K
24.85 mi12:54:432:51:116:535:54
6:54
#4930
25.2M
25.20 mi12:57:182:53:466:542:35
7:29
#4881
Finish
26.22 mi13:04:053:00:336:536:47
6:39
#4809
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5066472847283915(Top 14%)3691(Top 23%)3691(Top 65%)
10K6.21 mi3.10 mi4571+4954290+4384290+4384144(Top 15%)3897(Top 24%)3897(Top 69%)
15K9.32 mi3.11 mi4331+2404073+2174073+2173915(Top 14%)3691(Top 23%)3691(Top 65%)
20K12.43 mi3.11 mi4223+1083971+1023971+1024025(Top 14%)3780(Top 23%)3780(Top 67%)
Half13.11 mi0.68 mi4218+53966+53966+54339(Top 15%)4061(Top 25%)4061(Top 72%)
25K15.53 mi2.42 mi4187+313933+333933+334379(Top 15%)4057(Top 25%)4057(Top 72%)
30K18.64 mi3.11 mi4357-1704075-1424075-1425285(Top 19%)4765(Top 30%)4765(Top 84%)
20M20.00 mi1.36 mi4616-2594280-2054280-2057256(Top 26%)5980(Top 37%)5980(Top 106%)
21M21.00 mi1.00 mi4880-2644501-2214501-2218957(Top 32%)6776(Top 42%)6776(Top 120%)
35K21.75 mi0.75 mi4959-794558-574558-577066(Top 25%)5718(Top 36%)5718(Top 101%)
23M23.00 mi1.25 mi5028-694608-504608-505867(Top 21%)4881(Top 30%)4881(Top 87%)
24M24.00 mi1.00 mi5031-34598+104598+105184(Top 18%)4374(Top 27%)4374(Top 78%)
40K24.85 mi0.85 mi4930+1014503+954503+953339(Top 12%)2981(Top 19%)2981(Top 53%)
25.2M25.20 mi0.35 mi4881+494462+414462+413333(Top 12%)2923(Top 18%)2923(Top 52%)
Finish26.22 mi1.02 mi4809+724394+684394+683634(Top 13%)3160(Top 20%)3160(Top 56%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3915

Males

3691

M18-39

3691

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4144

Males

3897

M18-39

3897

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3915

Males

3691

M18-39

3691

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

4025

Males

3780

M18-39

3780

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

4339

Males

4061

M18-39

4061

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4379

Males

4057

M18-39

4057

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5285

Males

4765

M18-39

4765

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

7256

Males

5980

M18-39

5980

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

8957

Males

6776

M18-39

6776

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

7066

Males

5718

M18-39

5718

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

5867

Males

4881

M18-39

4881

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

5184

Males

4374

M18-39

4374

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3339

Males

2981

M18-39

2981

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3333

Males

2923

M18-39

2923

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3634

Males

3160

M18-39

3160

Passing Analysis

Category:
Athletes Passed
1601
Passed By
1344
Net Change
+257
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5066
5K → 10K52126+495#5066#4571
10K → 15K26323+240#4571#4331
15K → 20K15244+108#4331#4223
20K → Half2520+5#4223#4218
Half → 25K10372+31#4218#4187
25K → 30K89259-170#4187#4357
30K → 20M22281-259#4357#4616
20M → 21M20284-264#4616#4880
21M → 35K36115-79#4880#4959
35K → 23M67136-69#4959#5028
23M → 24M5659-3#5028#5031
24M → 40K1065+101#5031#4930
40K → 25.2M545+49#4930#4881
25.2M → Finish8715+72#4881#4809
TOTALS16011344+257
📊

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