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BOSTON MARATHON 2025

Michael Naff

VA

Bib: 11165 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 25%
Gender (Male)
#0 / 16105
Top 38%
Masters (Masters Men)
#0 / 10463
Top 24%
Division (M50-54)
#0 / 1996
Top 21%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:12/mi
22:21
↑ 97↓ 345
10K· 6.21 mi
7:03/mi
44:15
↑ 79↓ 138
15K· 9.32 mi
7:03/mi
1:06:09
↑ 67↓ 78
20K· 12.43 mi
7:06/mi
1:28:13
↑ 106↓ 86
Half· 13.11 mi
6:59/mi
1:32:59
↑ 19↓ 37
25K· 15.53 mi
7:02/mi
1:50:03
↑ 66↓ 88
30K· 18.64 mi
7:14/mi
2:12:31
↑ 181↓ 148
20M
7:14/mi
2:22:21
↑ 64↓ 50
21M
7:46/mi
2:30:07
↑ 106↓ 24
35K· 21.75 mi
7:12/mi
2:35:30
↑ 17↓ 86
23M
7:32/mi
2:44:56
↑ 23↓ 63
24M
7:33/mi
2:52:29
↓ 82
40K· 24.85 mi
7:53/mi
2:59:13
↓ 20
25.2M
8:48/mi
3:02:15
↑ 13↓ 16
Finish· 26.22 mi
7:48/mi
3:10:12
↑ 22↓ 21
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:32:597:06 /mi⚡ faster
2nd Half
1:37:137:25 /mi+4.6%
Positive split — 4.6% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
22:217:123.11 mi22:21
7:12
-
10K
44:157:073.10 mi21:54
7:03
-0:09
15K
1:06:097:063.11 mi21:54
7:03
0:00
20K
1:28:137:063.11 mi22:04
7:06
+0:03
Half(13.11 mi)
1:32:597:060.68 mi4:46
6:59
-0:07
25K
1:50:037:052.42 mi17:04
7:02
+0:03
30K
2:12:317:073.11 mi22:28
7:14
+0:12
20M
2:22:217:071.36 mi9:50
7:14
0:00
21M
2:30:077:091.00 mi7:46
7:46
+0:32
35K
2:35:307:090.75 mi5:23
7:12
-0:34
23M
2:44:567:101.25 mi9:26
7:32
+0:20
24M
2:52:297:111.00 mi7:33
7:33
+0:01
40K
2:59:137:130.85 mi6:44
7:53
+0:20
25.2M
3:02:157:140.35 mi3:02
8:48
+0:55
Finish(26.22 mi)
3:10:127:161.02 mi7:57
7:48
-1:00
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:59 /mi

Average Pace

7:16 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

4:46

3% of race

Time at Steady Pace

2:22:58

75% of race

Time at Slower Pace

42:28

22% of race

Average Pace: 7:15 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi938978177817793769046904
10K3.10 mi8789+6007472+3457472+345826771407140
15K3.11 mi8444+3457246+2267246+226793769046904
20K3.11 mi8174+2707063+1837063+183751465586558
Half(13.11 mi)0.68 mi8121+537027+367027+36742565156515
25K2.42 mi7819+3026820+2076820+207655958045804
30K3.11 mi7406+4136500+3206500+320606853555355
20M1.36 mi7183+2236311+1896311+189539847734773
21M1.00 mi7046+1376186+1256186+125598350545054
35K0.75 mi7007+396143+436143+43653554015401
23M1.25 mi6915+926043+1006043+100680054675467
24M1.00 mi6912+36009+346009+34801561106110
40K0.85 mi6941-296001+86001+8925066436643
25.2M0.35 mi6986-456020-196020-191046371557155
Finish(26.22 mi)1.02 mi7116-1306075-556075-551139776927692

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

7937

Males

6904

M50-54

6904

5K→10K

3.1 - 6.2 mi

Top 29%
×5story building
+79ft-138ft

Overall

8267

Males

7140

M50-54

7140

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

7937

Males

6904

M50-54

6904

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

7514

Males

6558

M50-54

6558

20K→Half

12.4 - 13.1 mi

Top 26%
×2story building
+19ft-37ft

Overall

7425

Males

6515

M50-54

6515

Half→25K

13.1 - 15.5 mi

Top 23%
×4story building
+66ft-88ft

Overall

6559

Males

5804

M50-54

5804

25K→30K

15.5 - 18.6 mi

Top 21%
×9story building
+181ft-148ft

Overall

6068

Males

5355

M50-54

5355

30K→20M

18.6 - 20.0 mi

Top 19%
×5story building
+64ft-50ft

Overall

5398

Males

4773

M50-54

4773

20M→21M

20.0 - 21.0 mi

Top 21%
×8story building
+106ft-24ft

Overall

5983

Males

5054

M50-54

5054

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

6535

Males

5401

M50-54

5401

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6800

Males

5467

M50-54

5467

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

8015

Males

6110

M50-54

6110

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9250

Males

6643

M50-54

6643

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

10463

Males

7155

M50-54

7155

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

11397

Males

7692

M50-54

7692

Passing Analysis

Category:
▲Net Change
+0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#9389
5K → 10K
40640+600
#9389 → #8789
10K → 15K
36381+345
#8789 → #8444
15K → 20K
40310+270
#8444 → #8174
20K → Half
760+53
#8174 → #8121
Half → 25K
9311+302
#8121 → #7819
25K → 30K
16429+413
#7819 → #7406
30K → 20M
4227+223
#7406 → #7183
20M → 21M
28165+137
#7183 → #7046
21M → 35K
2968+39
#7046 → #7007
35K → 23M
45137+92
#7007 → #6915
23M → 24M
6669+3
#6915 → #6912
24M → 40K
7748-29
#6912 → #6941
40K → 25.2M
5712-45
#6941 → #6986
25.2M → Finish
16434-130
#6986 → #7116
TOTALS
6182891+2273
#9389 → #7116

Passing Visualized

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