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BOSTON MARATHON 2025

Samuel Thompson

Bib: 27812•M

MA

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:18/mi
25:46
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
49:45
↑ 79↓ 1380.4%
15K· 9.32 mi
7:36/mi
1:13:23
↑ 67↓ 78
20K· 12.43 mi
8:24/mi
1:39:29
↑ 106↓ 860.1%
Half· 13.11 mi
9:10/mi
1:45:44
↑ 19↓ 370.5%
25K· 15.53 mi
8:40/mi
2:06:44
↑ 66↓ 880.2%
30K· 18.64 mi
9:24/mi
2:35:57
↑ 181↓ 1480.2%
20M
9:43/mi
2:49:09
↑ 64↓ 500.2%
21M
10:17/mi
2:59:26
↑ 106↓ 241.6%
35K· 21.75 mi
8:45/mi
3:05:59
↑ 17↓ 861.7%
23M
10:29/mi
3:19:06
↑ 23↓ 630.6%
24M
8:59/mi
3:28:05
↓ 821.3%
40K· 24.85 mi
9:41/mi
3:36:22
↓ 200.3%
25.2M
10:21/mi
3:39:56
↑ 13↓ 160.2%
Finish· 26.22 mi
9:04/mi
3:49:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:44
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time2:03:26
Pace9:25 /mi
📊Positive Split: 16.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:3125:468:1825:46
8:18
-
10K
6.21 mi12:10:3049:458:0023:59
7:43
-0:35
15K
9.32 mi12:34:081:13:237:5223:38
7:36
-0:07
20K
12.43 mi13:00:141:39:298:0026:06
8:24
+0:48
Half
13.11 mi13:06:291:45:448:046:15
9:10
+0:46
25K
15.53 mi13:27:292:06:448:0921:00
8:40
-0:30
30K
18.64 mi13:56:422:35:578:2229:13
9:24
+0:44
20M
20.00 mi14:09:542:49:098:2713:12
9:43
+0:19
21M
21.00 mi14:20:112:59:268:3310:17
10:17
+0:34
35K
21.75 mi14:26:443:05:598:336:33
8:45
-1:32
23M
23.00 mi14:39:513:19:068:3913:07
10:29
+1:44
24M
24.00 mi14:48:503:28:058:408:59
8:59
-1:30
40K
24.85 mi14:57:073:36:228:428:17
9:41
+0:42
25.2M
25.20 mi15:00:413:39:568:443:34
10:21
+0:40
Finish
26.22 mi15:09:553:49:108:459:14
9:04
-1:17

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

7:36 /mi

Average Pace

8:45 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:29

43% of race

Time at Steady Pace

1:21:14

35% of race

Time at Slower Pace

48:27

21% of race

Average Pace: 8:44 /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 mi11:46:3125:468:1825:46
8:18
#18660
10K
6.21 mi12:10:3049:458:0023:59
7:43
#16570
15K
9.32 mi12:34:081:13:237:5223:38
7:36
#15270
20K
12.43 mi13:00:141:39:298:0026:06
8:24
#15968
Half
13.11 mi13:06:291:45:448:046:15
9:10
#16422
25K
15.53 mi13:27:292:06:448:0921:00
8:40
#16695
30K
18.64 mi13:56:422:35:578:2229:13
9:24
#17240
20M
20.00 mi14:09:542:49:098:2713:12
9:43
#17503
21M
21.00 mi14:20:112:59:268:3310:17
10:17
#17656
35K
21.75 mi14:26:443:05:598:336:33
8:45
#17618
23M
23.00 mi14:39:513:19:068:3913:07
10:29
#18010
24M
24.00 mi14:48:503:28:058:408:59
8:59
#17963
40K
24.85 mi14:57:073:36:228:428:17
9:41
#18041
25.2M
25.20 mi15:00:413:39:568:443:34
10:21
#18061
Finish
26.22 mi15:09:553:49:108:459:14
9:04
#18122
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi18660118921189212651(Top 45%)9369(Top 58%)9369(Top 166%)
10K6.21 mi3.10 mi16570+209011043+84911043+84914065(Top 50%)10035(Top 62%)10035(Top 178%)
15K9.32 mi3.11 mi15270+130010508+53510508+53512651(Top 45%)9369(Top 58%)9369(Top 166%)
20K12.43 mi3.11 mi15968-69810793-28510793-28517549(Top 62%)11423(Top 71%)11423(Top 202%)
Half13.11 mi0.68 mi16422-45410986-19310986-19322421(Top 79%)13512(Top 84%)13512(Top 239%)
25K15.53 mi2.42 mi16695-27311065-7911065-7918145(Top 64%)11590(Top 72%)11590(Top 205%)
30K18.64 mi3.11 mi17240-54511235-17011235-17019544(Top 69%)12076(Top 75%)12076(Top 214%)
20M20.00 mi1.36 mi17503-26311306-7111306-7119975(Top 70%)12144(Top 75%)12144(Top 215%)
21M21.00 mi1.00 mi17656-15311358-5211358-5219286(Top 68%)11747(Top 73%)11747(Top 208%)
35K21.75 mi0.75 mi17618+3811318+4011318+4017001(Top 60%)10616(Top 66%)10616(Top 188%)
23M23.00 mi1.25 mi18010-39211460-14211460-14221943(Top 77%)12850(Top 80%)12850(Top 228%)
24M24.00 mi1.00 mi17963+4711409+5111409+5117263(Top 61%)10593(Top 66%)10593(Top 188%)
40K24.85 mi0.85 mi18041-7811426-1711426-1719411(Top 68%)11517(Top 72%)11517(Top 204%)
25.2M25.20 mi0.35 mi18061-2011427-111427-118415(Top 65%)11023(Top 68%)11023(Top 195%)
Finish26.22 mi1.02 mi18122-6111439-1211439-1219315(Top 68%)11492(Top 71%)11492(Top 204%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

12651

Males

9369

M18-39

9369

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

14065

Males

10035

M18-39

10035

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

12651

Males

9369

M18-39

9369

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

17549

Males

11423

M18-39

11423

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

22421

Males

13512

M18-39

13512

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

18145

Males

11590

M18-39

11590

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

19544

Males

12076

M18-39

12076

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

19975

Males

12144

M18-39

12144

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

19286

Males

11747

M18-39

11747

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

17001

Males

10616

M18-39

10616

35K→23M

21.8 - 23.0 mi

Top 77%
×5story building
+23ft-63ft

Overall

21943

Males

12850

M18-39

12850

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

17263

Males

10593

M18-39

10593

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19411

Males

11517

M18-39

11517

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18415

Males

11023

M18-39

11023

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

19315

Males

11492

M18-39

11492

Passing Analysis

Category:
Athletes Passed
4081
Passed By
3543
Net Change
+538
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18660
5K → 10K20977+2090#18660#16570
10K → 15K13033+1300#16570#15270
15K → 20K68766-698#15270#15968
20K → Half2456-454#15968#16422
Half → 25K85358-273#16422#16695
25K → 30K93638-545#16695#17240
30K → 20M51314-263#17240#17503
20M → 21M63216-153#17503#17656
21M → 35K8143+38#17656#17618
35K → 23M40432-392#17618#18010
23M → 24M9851+47#18010#17963
24M → 40K42120-78#17963#18041
40K → 25.2M2141-20#18041#18061
25.2M → Finish3798-61#18061#18122
TOTALS40813543+538
📊

Passing Visuals

Category:
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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