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BOSTON MARATHON 2025

Samuel Bigelow

Bib: 21309•M

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:09
Rank: #17313
Start → 5K
8:06/mi
25:09 split
10K· 6.21 mi
50:27
Rank: #17394 (-81)
5K → 10K
8:09/mi
25:18 split
15K· 9.32 mi
1:16:09
Rank: #17557 (-163)
10K → 15K
8:16/mi
25:42 split
20K· 12.43 mi
1:42:34
Rank: #17707 (-150)
15K → 20K
8:30/mi
26:25 split
Half· 13.11 mi
1:48:09
Rank: #17666 (+41)
20K → Half
8:11/mi
5:35 split
25K· 15.53 mi
2:10:05
Rank: #18089 (-423)
Half → 25K
9:03/mi
21:56 split
30K· 18.64 mi
2:41:02
Rank: #18976 (-887)
25K → 30K
9:58/mi
30:57 split
20M
2:54:41
Rank: #19195 (-219)
30K → 20M
10:03/mi
13:39 split
21M
3:04:49
Rank: #19181 (+14)
20M → 21M
10:08/mi
10:08 split
35K· 21.75 mi
3:12:12
Rank: #19303 (-122)
21M → 35K
9:52/mi
7:23 split
23M
3:25:49
Rank: #19644 (-341)
35K → 23M
10:53/mi
13:37 split
24M
3:34:49
Rank: #19551 (+93)
23M → 24M
9:00/mi
9:00 split
40K· 24.85 mi
3:44:25
Rank: #19813 (-262)
24M → 40K
11:14/mi
9:36 split
25.2M
3:48:39
Rank: #19921 (-108)
40K → 25.2M
12:17/mi
4:14 split
Finish· 26.22 mi
3:57:33
Rank: #19852 (+69)
25.2M → Finish
8:44/mi
8:54 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:09
Pace8:15 /mi
2nd Half
Distance13.11 mi
Time2:09:24
Pace9:52 /mi
📊Positive Split: 19.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:1925:098:0625:09
8:06
-
10K
6.21 mi11:44:3750:278:0725:18
8:09
+0:03
15K
9.32 mi12:10:191:16:098:1025:42
8:16
+0:07
20K
12.43 mi12:36:441:42:348:1526:25
8:30
+0:14
Half
13.11 mi12:42:191:48:098:155:35
8:11
-0:19
25K
15.53 mi13:04:152:10:058:2221:56
9:03
+0:52
30K
18.64 mi13:35:122:41:028:3830:57
9:58
+0:55
20M
20.00 mi13:48:512:54:418:4413:39
10:03
+0:05
21M
21.00 mi13:58:593:04:498:4810:08
10:08
+0:05
35K
21.75 mi14:06:223:12:128:507:23
9:52
-0:16
23M
23.00 mi14:19:593:25:498:5713:37
10:53
+1:01
24M
24.00 mi14:28:593:34:498:579:00
9:00
-1:53
40K
24.85 mi14:38:353:44:259:029:36
11:14
+2:14
25.2M
25.20 mi14:42:493:48:399:044:14
12:17
+1:03
Finish
26.22 mi14:51:433:57:339:048:54
8:44
-3:33

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

8:06 /mi

Average Pace

9:04 /mi

Slowest Pace

12:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:44

34% of race

Time at Steady Pace

1:06:15

28% of race

Time at Slower Pace

1:29:34

38% of race

Average Pace: 9:04 /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 mi11:19:1925:098:0625:09
8:06
#17313
10K
6.21 mi11:44:3750:278:0725:18
8:09
#17394
15K
9.32 mi12:10:191:16:098:1025:42
8:16
#17557
20K
12.43 mi12:36:441:42:348:1526:25
8:30
#17707
Half
13.11 mi12:42:191:48:098:155:35
8:11
#17666
25K
15.53 mi13:04:152:10:058:2221:56
9:03
#18089
30K
18.64 mi13:35:122:41:028:3830:57
9:58
#18976
20M
20.00 mi13:48:512:54:418:4413:39
10:03
#19195
21M
21.00 mi13:58:593:04:498:4810:08
10:08
#19181
35K
21.75 mi14:06:223:12:128:507:23
9:52
#19303
23M
23.00 mi14:19:593:25:498:5713:37
10:53
#19644
24M
24.00 mi14:28:593:34:498:579:00
9:00
#19551
40K
24.85 mi14:38:353:44:259:029:36
11:14
#19813
25.2M
25.20 mi14:42:493:48:399:044:14
12:17
#19921
Finish
26.22 mi14:51:433:57:339:048:54
8:44
#19852
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi17313113401134017857(Top 63%)11576(Top 72%)11576(Top 919%)
10K6.21 mi3.10 mi17394-8111373-3311373-3317491(Top 62%)11450(Top 71%)11450(Top 909%)
15K9.32 mi3.11 mi17557-16311460-8711460-8717857(Top 63%)11576(Top 72%)11576(Top 919%)
20K12.43 mi3.11 mi17707-15011497-3711497-3718256(Top 64%)11729(Top 73%)11729(Top 932%)
Half13.11 mi0.68 mi17666+4111485+1211485+1217169(Top 60%)11270(Top 70%)11270(Top 895%)
25K15.53 mi2.42 mi18089-42311629-14411629-14420103(Top 71%)12461(Top 77%)12461(Top 990%)
30K18.64 mi3.11 mi18976-88711988-35911988-35921485(Top 76%)12932(Top 80%)12932(Top 1027%)
20M20.00 mi1.36 mi19195-21912052-6412052-6421094(Top 74%)12630(Top 78%)12630(Top 1003%)
21M21.00 mi1.00 mi19181+1412024+2812024+2818789(Top 66%)11515(Top 71%)11515(Top 915%)
35K21.75 mi0.75 mi19303-12212061-3712061-3721512(Top 76%)12672(Top 79%)12672(Top 1007%)
23M23.00 mi1.25 mi19644-34112168-10712168-10722934(Top 81%)13307(Top 83%)13307(Top 1057%)
24M24.00 mi1.00 mi19551+9312105+6312105+6317361(Top 61%)10638(Top 66%)10638(Top 845%)
40K24.85 mi0.85 mi19813-26212196-9112196-9123607(Top 83%)13555(Top 84%)13555(Top 1077%)
25.2M25.20 mi0.35 mi19921-10812242-4612242-4623724(Top 84%)13617(Top 85%)13617(Top 1082%)
Finish26.22 mi1.02 mi19852+6912199+4312199+4317666(Top 62%)10719(Top 67%)10719(Top 851%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21story building
+97ft-345ft

Overall

17857

Males

11576

M60-64

11576

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

17491

Males

11450

M60-64

11450

10K→15K

6.2 - 9.3 mi

Top 63%
×3story building
+67ft-78ft

Overall

17857

Males

11576

M60-64

11576

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

18256

Males

11729

M60-64

11729

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

17169

Males

11270

M60-64

11270

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

20103

Males

12461

M60-64

12461

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

21485

Males

12932

M60-64

12932

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

21094

Males

12630

M60-64

12630

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

18789

Males

11515

M60-64

11515

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

21512

Males

12672

M60-64

12672

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

22934

Males

13307

M60-64

13307

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

17361

Males

10638

M60-64

10638

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23607

Males

13555

M60-64

13555

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23724

Males

13617

M60-64

13617

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

17666

Males

10719

M60-64

10719

Passing Analysis

Category:
Athletes Passed
1189
Passed By
3728
Net Change
-2539
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17313
5K → 10K257338-81#17313#17394
10K → 15K138301-163#17394#17557
15K → 20K143293-150#17557#17707
20K → Half5817+41#17707#17666
Half → 25K79502-423#17666#18089
25K → 30K66953-887#18089#18976
30K → 20M52271-219#18976#19195
20M → 21M10591+14#19195#19181
21M → 35K30152-122#19181#19303
35K → 23M30371-341#19303#19644
23M → 24M11118+93#19644#19551
24M → 40K17279-262#19551#19813
40K → 25.2M8116-108#19813#19921
25.2M → Finish9526+69#19921#19852
TOTALS11893728-2539
📊

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