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BOSTON MARATHON 2025

Neil Samuelsen

Bib: 28771•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:05
Rank: #21081
Start → 5K
27:05 | 8:43/mi
10K· 6.21 mi
54:38
Rank: #21407 (-326)
5K → 10K
27:33 | 8:52/mi
15K· 9.32 mi
1:22:08
Rank: #21333 (+74)
10K → 15K
27:30 | 8:51/mi
20K· 12.43 mi
1:49:14
Rank: #20862 (+471)
15K → 20K
27:06 | 8:43/mi
Half· 13.11 mi
1:55:17
Rank: #20891 (-29)
20K → Half
6:03 | 8:52/mi
25K· 15.53 mi
2:17:01
Rank: #20716 (+175)
Half → 25K
21:44 | 8:58/mi
30K· 18.64 mi
2:47:15
Rank: #20737 (-21)
25K → 30K
30:14 | 9:44/mi
20M
3:00:48
Rank: #20756 (-19)
30K → 20M
13:33 | 9:58/mi
21M
3:11:10
Rank: #20654 (+102)
20M → 21M
10:22 | 10:22/mi
35K· 21.75 mi
3:18:34
Rank: #20707 (-53)
21M → 35K
7:24 | 9:53/mi
23M
3:31:16
Rank: #20767 (-60)
35K → 23M
12:42 | 10:09/mi
24M
3:41:06
Rank: #20783 (-16)
23M → 24M
9:50 | 9:50/mi
40K· 24.85 mi
3:49:17
Rank: #20723 (+60)
24M → 40K
8:11 | 9:34/mi
25.2M
3:52:46
Rank: #20671 (+52)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
4:02:27
Rank: #20695 (-24)
25.2M → Finish
9:41 | 9:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:17
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:07:10
Pace9:42 /mi
📊Positive Split: 10.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:3427:058:4327:05
8:43
-
10K
6.21 mi12:12:0754:388:4827:33
8:52
+0:09
15K
9.32 mi12:39:371:22:088:4927:30
8:51
-0:01
20K
12.43 mi13:06:431:49:148:4727:06
8:43
-0:08
Half
13.11 mi13:12:461:55:178:486:03
8:52
+0:09
25K
15.53 mi13:34:302:17:018:4921:44
8:58
+0:06
30K
18.64 mi14:04:442:47:158:5830:14
9:44
+0:46
20M
20.00 mi14:18:173:00:489:0213:33
9:58
+0:14
21M
21.00 mi14:28:393:11:109:0610:22
10:22
+0:24
35K
21.75 mi14:36:033:18:349:087:24
9:53
-0:29
23M
23.00 mi14:48:453:31:169:1112:42
10:09
+0:16
24M
24.00 mi14:58:353:41:069:139:50
9:50
-0:19
40K
24.85 mi15:06:463:49:179:138:11
9:34
-0:16
25.2M
25.20 mi15:10:153:52:469:143:29
10:06
+0:32
Finish
26.22 mi15:19:564:02:279:159:41
9:30
-0:36

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

8:43 /mi

Average Pace

9:15 /mi

Slowest Pace

10:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:53

64% of race

Time at Steady Pace

1:17:12

32% of race

Time at Slower Pace

10:22

4% of race

Average Pace: 9:15 /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 mi11:44:3427:058:4327:05
8:43
#21081
10K
6.21 mi12:12:0754:388:4827:33
8:52
#21407
15K
9.32 mi12:39:371:22:088:4927:30
8:51
#21333
20K
12.43 mi13:06:431:49:148:4727:06
8:43
#20862
Half
13.11 mi13:12:461:55:178:486:03
8:52
#20891
25K
15.53 mi13:34:302:17:018:4921:44
8:58
#20716
30K
18.64 mi14:04:442:47:158:5830:14
9:44
#20737
20M
20.00 mi14:18:173:00:489:0213:33
9:58
#20756
21M
21.00 mi14:28:393:11:109:0610:22
10:22
#20654
35K
21.75 mi14:36:033:18:349:087:24
9:53
#20707
23M
23.00 mi14:48:453:31:169:1112:42
10:09
#20767
24M
24.00 mi14:58:353:41:069:139:50
9:50
#20783
40K
24.85 mi15:06:463:49:179:138:11
9:34
#20723
25.2M
25.20 mi15:10:153:52:469:143:29
10:06
#20671
Finish
26.22 mi15:19:564:02:279:159:41
9:30
#20695
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi21081128981289821285(Top 75%)13070(Top 81%)13070(Top 655%)
10K6.21 mi3.10 mi21407-32613073-17513073-17521725(Top 76%)13227(Top 82%)13227(Top 663%)
15K9.32 mi3.11 mi21333+7413060+1313060+1321285(Top 75%)13070(Top 81%)13070(Top 655%)
20K12.43 mi3.11 mi20862+47112845+21512845+21519525(Top 69%)12255(Top 76%)12255(Top 614%)
Half13.11 mi0.68 mi20891-2912860-1512860-1521195(Top 75%)12992(Top 81%)12992(Top 651%)
25K15.53 mi2.42 mi20716+17512776+8412776+8419741(Top 70%)12301(Top 76%)12301(Top 616%)
30K18.64 mi3.11 mi20737-2112731+4512731+4520776(Top 73%)12617(Top 78%)12617(Top 632%)
20M20.00 mi1.36 mi20756-1912728+312728+320823(Top 73%)12505(Top 78%)12505(Top 627%)
21M21.00 mi1.00 mi20654+10212665+6312665+6319596(Top 69%)11867(Top 74%)11867(Top 595%)
35K21.75 mi0.75 mi20707-5312676-1112676-1121579(Top 76%)12706(Top 79%)12706(Top 637%)
23M23.00 mi1.25 mi20767-6012678-212678-220933(Top 74%)12365(Top 77%)12365(Top 619%)
24M24.00 mi1.00 mi20783-1612670+812670+820827(Top 73%)12258(Top 76%)12258(Top 614%)
40K24.85 mi0.85 mi20723+6012628+4212628+4218987(Top 67%)11318(Top 70%)11318(Top 567%)
25.2M25.20 mi0.35 mi20671+5212598+3012598+3017453(Top 61%)10593(Top 66%)10593(Top 531%)
Finish26.22 mi1.02 mi20695-2412589+912589+921184(Top 75%)12381(Top 77%)12381(Top 620%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21stories
+97ft-345ft

Overall

21285

Males

13070

M50-54

13070

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

21725

Males

13227

M50-54

13227

10K→15K

6.2 - 9.3 mi

Top 75%
×3stories
+67ft-78ft

Overall

21285

Males

13070

M50-54

13070

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

19525

Males

12255

M50-54

12255

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

21195

Males

12992

M50-54

12992

Half→25K

13.1 - 15.5 mi

Top 70%
×4stories
+66ft-88ft

Overall

19741

Males

12301

M50-54

12301

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

20776

Males

12617

M50-54

12617

30K→20M

18.6 - 20.0 mi

Top 73%
×5stories
+64ft-50ft

Overall

20823

Males

12505

M50-54

12505

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

19596

Males

11867

M50-54

11867

21M→35K

21.0 - 21.8 mi

Top 76%
×7stories
+17ft-86ft

Overall

21579

Males

12706

M50-54

12706

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

20933

Males

12365

M50-54

12365

23M→24M

23.0 - 24.0 mi

Top 73%
×6stories
+12ft-82ft

Overall

20827

Males

12258

M50-54

12258

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

18987

Males

11318

M50-54

11318

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17453

Males

10593

M50-54

10593

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2stories
+22ft-21ft

Overall

21184

Males

12381

M50-54

12381

Passing Analysis

Category:
Athletes Passed
1957
Passed By
1571
Net Change
+386
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21081
5K → 10K165491-326#21081#21407
10K → 15K251177+74#21407#21333
15K → 20K49019+471#21333#20862
20K → Half2251-29#20862#20891
Half → 25K23964+175#20891#20716
25K → 30K216237-21#20716#20737
30K → 20M95114-19#20737#20756
20M → 21M14745+102#20756#20654
21M → 35K3992-53#20654#20707
35K → 23M66126-60#20707#20767
23M → 24M5369-16#20767#20783
24M → 40K8424+60#20783#20723
40K → 25.2M553+52#20723#20671
25.2M → Finish3559-24#20671#20695
TOTALS19571571+386
📊

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