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BOSTON MARATHON 2025

Sam Anders

Bib: 31832•M

PA

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
9:24/mi
29:11
↑ 97↓ 3451.5%
10K· 6.21 mi
8:59/mi
57:07
↑ 79↓ 1380.4%
15K· 9.32 mi
8:59/mi
1:25:01
↑ 67↓ 78
20K· 12.43 mi
9:22/mi
1:54:07
↑ 106↓ 860.1%
Half· 13.11 mi
9:18/mi
2:00:28
↑ 19↓ 370.5%
25K· 15.53 mi
9:50/mi
2:24:19
↑ 66↓ 880.2%
30K· 18.64 mi
11:40/mi
3:00:33
↑ 181↓ 1480.2%
20M
13:18/mi
3:18:38
↑ 64↓ 500.2%
21M
12:54/mi
3:31:32
↑ 106↓ 241.6%
35K· 21.75 mi
12:22/mi
3:40:47
↑ 17↓ 861.7%
23M
13:40/mi
3:57:54
↑ 23↓ 630.6%
24M
13:12/mi
4:11:06
↓ 821.3%
40K· 24.85 mi
16:01/mi
4:24:48
↓ 200.3%
25.2M
17:09/mi
4:30:43
↑ 13↓ 160.2%
Finish· 26.22 mi
12:32/mi
4:43:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:28
Pace9:11 /mi
2nd Half
Distance13.11 mi
Time2:43:01
Pace12:26 /mi
📊Positive Split: 35.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:4729:119:2429:11
9:24
-
10K
6.21 mi12:18:4357:079:1227:56
8:59
-0:25
15K
9.32 mi12:46:371:25:019:0727:54
8:59
0:00
20K
12.43 mi13:15:431:54:079:1129:06
9:22
+0:23
Half
13.11 mi13:22:042:00:289:116:21
9:18
-0:04
25K
15.53 mi13:45:552:24:199:1723:51
9:50
+0:32
30K
18.64 mi14:22:093:00:339:4136:14
11:40
+1:50
20M
20.00 mi14:40:143:18:389:5618:05
13:18
+1:38
21M
21.00 mi14:53:083:31:3210:0412:54
12:54
-0:24
35K
21.75 mi15:02:233:40:4710:099:15
12:22
-0:32
23M
23.00 mi15:19:303:57:5410:2117:07
13:40
+1:18
24M
24.00 mi15:32:424:11:0610:2813:12
13:12
-0:28
40K
24.85 mi15:46:244:24:4810:3913:42
16:01
+2:49
25.2M
25.20 mi15:52:194:30:4310:455:55
17:09
+1:08
Finish
26.22 mi16:05:054:43:2910:4912:46
12:32
-4:37

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

8:59 /mi

Average Pace

10:49 /mi

Slowest Pace

17:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:24:19

51% of race

Time at Steady Pace

1:42:26

36% of race

Time at Slower Pace

36:44

13% of race

Average Pace: 10:49 /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 mi11:50:4729:119:2429:11
9:24
#23894
10K
6.21 mi12:18:4357:079:1227:56
8:59
#23178
15K
9.32 mi12:46:371:25:019:0727:54
8:59
#22786
20K
12.43 mi13:15:431:54:079:1129:06
9:22
#22708
Half
13.11 mi13:22:042:00:289:116:21
9:18
#22733
25K
15.53 mi13:45:552:24:199:1723:51
9:50
#22751
30K
18.64 mi14:22:093:00:339:4136:14
11:40
#23363
20M
20.00 mi14:40:143:18:389:5618:05
13:18
#23827
21M
21.00 mi14:53:083:31:3210:0412:54
12:54
#23919
35K
21.75 mi15:02:233:40:4710:099:15
12:22
#24063
23M
23.00 mi15:19:303:57:5410:2117:07
13:40
#24352
24M
24.00 mi15:32:424:11:0610:2813:12
13:12
#24548
40K
24.85 mi15:46:244:24:4810:3913:42
16:01
#24846
25.2M
25.20 mi15:52:194:30:4310:455:55
17:09
#24953
Finish
26.22 mi16:05:054:43:2910:4912:46
12:32
#25082
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23894141901419021951(Top 77%)13372(Top 83%)13372(Top 237%)
10K6.21 mi3.10 mi23178+71613872+31813872+31822352(Top 79%)13509(Top 84%)13509(Top 239%)
15K9.32 mi3.11 mi22786+39213719+15313719+15321951(Top 77%)13372(Top 83%)13372(Top 237%)
20K12.43 mi3.11 mi22708+7813691+2813691+2822468(Top 79%)13565(Top 84%)13565(Top 240%)
Half13.11 mi0.68 mi22733-2513699-813699-822985(Top 81%)13793(Top 86%)13793(Top 244%)
25K15.53 mi2.42 mi22751-1813686+1313686+1322859(Top 80%)13681(Top 85%)13681(Top 242%)
30K18.64 mi3.11 mi23363-61213920-23413920-23425084(Top 88%)14567(Top 90%)14567(Top 258%)
20M20.00 mi1.36 mi23827-46414109-18914109-18926725(Top 94%)15242(Top 95%)15242(Top 270%)
21M21.00 mi1.00 mi23919-9214138-2914138-2924931(Top 88%)14332(Top 89%)14332(Top 254%)
35K21.75 mi0.75 mi24063-14414189-5114189-5126318(Top 93%)15000(Top 93%)15000(Top 266%)
23M23.00 mi1.25 mi24352-28914315-12614315-12627044(Top 95%)15345(Top 95%)15345(Top 272%)
24M24.00 mi1.00 mi24548-19614384-6914384-6927057(Top 95%)15325(Top 95%)15325(Top 272%)
40K24.85 mi0.85 mi24846-29814513-12914513-12928103(Top 99%)15901(Top 99%)15901(Top 282%)
25.2M25.20 mi0.35 mi24953-10714560-4714560-4728095(Top 99%)15882(Top 99%)15882(Top 281%)
Finish26.22 mi1.02 mi25082-12914618-5814618-5827310(Top 96%)15464(Top 96%)15464(Top 274%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

21951

Males

13372

M18-39

13372

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22352

Males

13509

M18-39

13509

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

21951

Males

13372

M18-39

13372

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

22468

Males

13565

M18-39

13565

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

22985

Males

13793

M18-39

13793

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

22859

Males

13681

M18-39

13681

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

25084

Males

14567

M18-39

14567

30K→20M

18.6 - 20.0 mi

Top 94%
×5story building
+64ft-50ft

Overall

26725

Males

15242

M18-39

15242

20M→21M

20.0 - 21.0 mi

Top 88%
×8story building
+106ft-24ft

Overall

24931

Males

14332

M18-39

14332

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

26318

Males

15000

M18-39

15000

35K→23M

21.8 - 23.0 mi

Top 95%
×5story building
+23ft-63ft

Overall

27044

Males

15345

M18-39

15345

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

27057

Males

15325

M18-39

15325

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

28103

Males

15901

M18-39

15901

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

28095

Males

15882

M18-39

15882

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2story building
+22ft-21ft

Overall

27310

Males

15464

M18-39

15464

Passing Analysis

Category:
Athletes Passed
1701
Passed By
2889
Net Change
-1188
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23894
5K → 10K75640+716#23894#23178
10K → 15K42230+392#23178#22786
15K → 20K225147+78#22786#22708
20K → Half2247-25#22708#22733
Half → 25K142160-18#22733#22751
25K → 30K38650-612#22751#23363
30K → 20M13477-464#23363#23827
20M → 21M35127-92#23827#23919
21M → 35K13157-144#23919#24063
35K → 23M17306-289#24063#24352
23M → 24M13209-196#24352#24548
24M → 40K0298-298#24548#24846
40K → 25.2M1108-107#24846#24953
25.2M → Finish4133-129#24953#25082
TOTALS17012889-1188
📊

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