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BOSTON MARATHON 2025

Scott Nanfelt

Bib: 16706•M

RI

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
28:47
Rank: #23432
Start → 5K
28:47 | 9:16/mi
10K· 6.21 mi
58:18
Rank: #23829 (-397)
5K → 10K
29:31 | 9:30/mi
15K· 9.32 mi
1:27:59
Rank: #23863 (-34)
10K → 15K
29:41 | 9:33/mi
20K· 12.43 mi
1:57:49
Rank: #23694 (+169)
15K → 20K
29:50 | 9:36/mi
Half· 13.11 mi
2:04:25
Rank: #23715 (-21)
20K → Half
6:36 | 9:40/mi
25K· 15.53 mi
2:28:07
Rank: #23522 (+193)
Half → 25K
23:42 | 9:46/mi
30K· 18.64 mi
3:00:02
Rank: #23268 (+254)
25K → 30K
31:55 | 10:16/mi
20M
3:14:34
Rank: #23230 (+38)
30K → 20M
14:32 | 10:42/mi
21M
3:26:12
Rank: #23200 (+30)
20M → 21M
11:38 | 11:38/mi
35K· 21.75 mi
3:34:12
Rank: #23216 (-16)
21M → 35K
8:00 | 10:42/mi
23M
3:48:21
Rank: #23273 (-57)
35K → 23M
14:09 | 11:18/mi
24M
3:59:21
Rank: #23302 (-29)
23M → 24M
11:00 | 11:00/mi
40K· 24.85 mi
4:09:08
Rank: #23313 (-11)
24M → 40K
9:47 | 11:27/mi
25.2M
4:13:22
Rank: #23330 (-17)
40K → 25.2M
4:14 | 12:17/mi
Finish· 26.22 mi
4:24:54
Rank: #23473 (-143)
25.2M → Finish
11:32 | 11:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:25
Pace9:29 /mi
2nd Half
Distance13.11 mi
Time2:20:29
Pace10:43 /mi
📊Positive Split: 12.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:02:0428:479:1628:47
9:16
-
10K
6.21 mi11:31:3558:189:2329:31
9:30
+0:14
15K
9.32 mi12:01:161:27:599:2629:41
9:33
+0:03
20K
12.43 mi12:31:061:57:499:2929:50
9:36
+0:03
Half
13.11 mi12:37:422:04:259:296:36
9:40
+0:04
25K
15.53 mi13:01:242:28:079:3223:42
9:46
+0:06
30K
18.64 mi13:33:193:00:029:3931:55
10:16
+0:30
20M
20.00 mi13:47:513:14:349:4414:32
10:42
+0:26
21M
21.00 mi13:59:293:26:129:4911:38
11:38
+0:56
35K
21.75 mi14:07:293:34:129:518:00
10:42
-0:56
23M
23.00 mi14:21:383:48:219:5614:09
11:18
+0:36
24M
24.00 mi14:32:383:59:219:5811:00
11:00
-0:18
40K
24.85 mi14:42:254:09:0810:019:47
11:27
+0:27
25.2M
25.20 mi14:46:394:13:2210:034:14
12:17
+0:50
Finish
26.22 mi14:58:114:24:5410:0711:32
11:19
-0:58

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

9:16 /mi

Average Pace

10:07 /mi

Slowest Pace

12:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:28:07

56% of race

Time at Steady Pace

1:05:27

25% of race

Time at Slower Pace

51:20

19% of race

Average Pace: 10:06 /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 mi11:02:0428:479:1628:47
9:16
#23432
10K
6.21 mi11:31:3558:189:2329:31
9:30
#23829
15K
9.32 mi12:01:161:27:599:2629:41
9:33
#23863
20K
12.43 mi12:31:061:57:499:2929:50
9:36
#23694
Half
13.11 mi12:37:422:04:259:296:36
9:40
#23715
25K
15.53 mi13:01:242:28:079:3223:42
9:46
#23522
30K
18.64 mi13:33:193:00:029:3931:55
10:16
#23268
20M
20.00 mi13:47:513:14:349:4414:32
10:42
#23230
21M
21.00 mi13:59:293:26:129:4911:38
11:38
#23200
35K
21.75 mi14:07:293:34:129:518:00
10:42
#23216
23M
23.00 mi14:21:383:48:219:5614:09
11:18
#23273
24M
24.00 mi14:32:383:59:219:5811:00
11:00
#23302
40K
24.85 mi14:42:254:09:0810:019:47
11:27
#23313
25.2M
25.20 mi14:46:394:13:2210:034:14
12:17
#23330
Finish
26.22 mi14:58:114:24:5410:0711:32
11:19
#23473
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi23432139661396623883(Top 84%)14228(Top 88%)14228(Top 1130%)
10K6.21 mi3.10 mi23829-39714178-21214178-21224098(Top 85%)14295(Top 89%)14295(Top 1135%)
15K9.32 mi3.11 mi23863-3414200-2214200-2223883(Top 84%)14228(Top 88%)14228(Top 1130%)
20K12.43 mi3.11 mi23694+16914117+8314117+8323211(Top 82%)13899(Top 86%)13899(Top 1104%)
Half13.11 mi0.68 mi23715-2114122-514122-524016(Top 85%)14237(Top 88%)14237(Top 1131%)
25K15.53 mi2.42 mi23522+19314028+9414028+9422710(Top 80%)13616(Top 85%)13616(Top 1081%)
30K18.64 mi3.11 mi23268+25413876+15213876+15222370(Top 79%)13330(Top 83%)13330(Top 1059%)
20M20.00 mi1.36 mi23230+3813839+3713839+3722935(Top 81%)13490(Top 84%)13490(Top 1071%)
21M21.00 mi1.00 mi23200+3013804+3513804+3522882(Top 81%)13383(Top 83%)13383(Top 1063%)
35K21.75 mi0.75 mi23216-1613803+113803+123563(Top 83%)13666(Top 85%)13666(Top 1085%)
23M23.00 mi1.25 mi23273-5713798+513798+523879(Top 84%)13778(Top 86%)13778(Top 1094%)
24M24.00 mi1.00 mi23302-2913795+313795+323976(Top 84%)13812(Top 86%)13812(Top 1097%)
40K24.85 mi0.85 mi23313-1113788+713788+724030(Top 85%)13790(Top 86%)13790(Top 1095%)
25.2M25.20 mi0.35 mi23330-1713790-213790-223744(Top 84%)13637(Top 85%)13637(Top 1083%)
Finish26.22 mi1.02 mi23473-14313838-4813838-4825887(Top 91%)14724(Top 91%)14724(Top 1169%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21stories
+97ft-345ft

Overall

23883

Males

14228

M60-64

14228

5K→10K

3.1 - 6.2 mi

Top 85%
×5stories
+79ft-138ft

Overall

24098

Males

14295

M60-64

14295

10K→15K

6.2 - 9.3 mi

Top 84%
×3stories
+67ft-78ft

Overall

23883

Males

14228

M60-64

14228

15K→20K

9.3 - 12.4 mi

Top 82%
×5stories
+106ft-86ft

Overall

23211

Males

13899

M60-64

13899

20K→Half

12.4 - 13.1 mi

Top 85%
×2stories
+19ft-37ft

Overall

24016

Males

14237

M60-64

14237

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

22710

Males

13616

M60-64

13616

25K→30K

15.5 - 18.6 mi

Top 79%
×9stories
+181ft-148ft

Overall

22370

Males

13330

M60-64

13330

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

22935

Males

13490

M60-64

13490

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

22882

Males

13383

M60-64

13383

21M→35K

21.0 - 21.8 mi

Top 83%
×7stories
+17ft-86ft

Overall

23563

Males

13666

M60-64

13666

35K→23M

21.8 - 23.0 mi

Top 84%
×5stories
+23ft-63ft

Overall

23879

Males

13778

M60-64

13778

23M→24M

23.0 - 24.0 mi

Top 84%
×6stories
+12ft-82ft

Overall

23976

Males

13812

M60-64

13812

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24030

Males

13790

M60-64

13790

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23744

Males

13637

M60-64

13637

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2stories
+22ft-21ft

Overall

25887

Males

14724

M60-64

14724

Passing Analysis

Category:
Athletes Passed
1381
Passed By
1422
Net Change
-41
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23432
5K → 10K107504-397#23432#23829
10K → 15K141175-34#23829#23863
15K → 20K22051+169#23863#23694
20K → Half1435-21#23694#23715
Half → 25K22633+193#23715#23522
25K → 30K30248+254#23522#23268
30K → 20M9759+38#23268#23230
20M → 21M7848+30#23230#23200
21M → 35K3147-16#23200#23216
35K → 23M48105-57#23216#23273
23M → 24M4372-29#23273#23302
24M → 40K4758-11#23302#23313
40K → 25.2M1734-17#23313#23330
25.2M → Finish10153-143#23330#23473
TOTALS13811422-41
📊

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