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BOSTON MARATHON 2025

David Dahl

Bib: 25364•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M70-74)
#0 / 228
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
10:14/mi
31:47
↑ 97↓ 3451.5%
10K· 6.21 mi
9:56/mi
1:02:38
↑ 79↓ 1380.4%
15K· 9.32 mi
9:59/mi
1:33:39
↑ 67↓ 78
20K· 12.43 mi
9:55/mi
2:04:28
↑ 106↓ 860.1%
Half· 13.11 mi
9:42/mi
2:11:05
↑ 19↓ 370.5%
25K· 15.53 mi
10:00/mi
2:35:19
↑ 66↓ 880.2%
30K· 18.64 mi
10:27/mi
3:07:48
↑ 181↓ 1480.2%
20M
10:39/mi
3:22:17
↑ 64↓ 500.2%
21M
11:32/mi
3:33:49
↑ 106↓ 241.6%
35K· 21.75 mi
10:07/mi
3:41:23
↑ 17↓ 861.7%
23M
11:01/mi
3:55:11
↑ 23↓ 630.6%
24M
10:32/mi
4:05:43
↓ 821.3%
40K· 24.85 mi
10:39/mi
4:14:49
↓ 200.3%
25.2M
12:17/mi
4:19:03
↑ 13↓ 160.2%
Finish· 26.22 mi
10:30/mi
4:29:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:11:05
Pace10:00 /mi
2nd Half
Distance13.11 mi
Time2:18:40
Pace10:35 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:33:1831:4710:1431:47
10:14
-
10K
6.21 mi12:04:091:02:3810:0530:51
9:56
-0:18
15K
9.32 mi12:35:101:33:3910:0331:01
9:59
+0:03
20K
12.43 mi13:05:592:04:2810:0130:49
9:55
-0:04
Half
13.11 mi13:12:362:11:0510:006:37
9:42
-0:13
25K
15.53 mi13:36:502:35:1910:0024:14
10:00
+0:18
30K
18.64 mi14:09:193:07:4810:0432:29
10:27
+0:27
20M
20.00 mi14:23:483:22:1710:0714:29
10:39
+0:12
21M
21.00 mi14:35:203:33:4910:1111:32
11:32
+0:53
35K
21.75 mi14:42:543:41:2310:117:34
10:07
-1:25
23M
23.00 mi14:56:423:55:1110:1413:48
11:01
+0:54
24M
24.00 mi15:07:144:05:4310:1410:32
10:32
-0:29
40K
24.85 mi15:16:204:14:4910:159:06
10:39
+0:07
25.2M
25.20 mi15:20:344:19:0310:174:14
12:17
+1:38
Finish
26.22 mi15:31:164:29:4510:1810:42
10:30
-1:47

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

9:42 /mi

Average Pace

10:18 /mi

Slowest Pace

12:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:06

49% of race

Time at Steady Pace

1:49:05

40% of race

Time at Slower Pace

29:34

11% of race

Average Pace: 10:17 /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 mi11:33:1831:4710:1431:47
10:14
#26133
10K
6.21 mi12:04:091:02:3810:0530:51
9:56
#25613
15K
9.32 mi12:35:101:33:3910:0331:01
9:59
#25407
20K
12.43 mi13:05:592:04:2810:0130:49
9:55
#25054
Half
13.11 mi13:12:362:11:0510:006:37
9:42
#24996
25K
15.53 mi13:36:502:35:1910:0024:14
10:00
#24707
30K
18.64 mi14:09:193:07:4810:0432:29
10:27
#24399
20M
20.00 mi14:23:483:22:1710:0714:29
10:39
#24290
21M
21.00 mi14:35:203:33:4910:1111:32
11:32
#24184
35K
21.75 mi14:42:543:41:2310:117:34
10:07
#24115
23M
23.00 mi14:56:423:55:1110:1413:48
11:01
#24059
24M
24.00 mi15:07:144:05:4310:1410:32
10:32
#24011
40K
24.85 mi15:16:204:14:4910:159:06
10:39
#23958
25.2M
25.20 mi15:20:344:19:0310:174:14
12:17
#23965
Finish
26.22 mi15:31:164:29:4510:1810:42
10:30
#23990
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi26133152351523524959(Top 88%)14703(Top 91%)14703(Top 6449%)
10K6.21 mi3.10 mi25613+52014985+25014985+25025160(Top 89%)14777(Top 92%)14777(Top 6481%)
15K9.32 mi3.11 mi25407+20614898+8714898+8724959(Top 88%)14703(Top 91%)14703(Top 6449%)
20K12.43 mi3.11 mi25054+35314730+16814730+16824059(Top 85%)14256(Top 89%)14256(Top 6253%)
Half13.11 mi0.68 mi24996+5814694+3614694+3624088(Top 85%)14274(Top 89%)14274(Top 6261%)
25K15.53 mi2.42 mi24707+28914551+14314551+14323248(Top 82%)13858(Top 86%)13858(Top 6078%)
30K18.64 mi3.11 mi24399+30814389+16214389+16222839(Top 80%)13547(Top 84%)13547(Top 5942%)
20M20.00 mi1.36 mi24290+10914320+6914320+6922853(Top 80%)13455(Top 84%)13455(Top 5901%)
21M21.00 mi1.00 mi24184+10614258+6214258+6222673(Top 80%)13284(Top 82%)13284(Top 5826%)
35K21.75 mi0.75 mi24115+6914222+3614222+3622215(Top 78%)13019(Top 81%)13019(Top 5710%)
23M23.00 mi1.25 mi24059+5614173+4914173+4923270(Top 82%)13464(Top 84%)13464(Top 5905%)
24M24.00 mi1.00 mi24011+4814136+3714136+3722916(Top 81%)13267(Top 82%)13267(Top 5819%)
40K24.85 mi0.85 mi23958+5314097+3914097+3922296(Top 78%)12886(Top 80%)12886(Top 5652%)
25.2M25.20 mi0.35 mi23965-714093+414093+423751(Top 84%)13644(Top 85%)13644(Top 5984%)
Finish26.22 mi1.02 mi23990-25140931409324277(Top 85%)13907(Top 86%)13907(Top 6100%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

24959

Males

14703

M70-74

14703

5K→10K

3.1 - 6.2 mi

Top 89%
×5story building
+79ft-138ft

Overall

25160

Males

14777

M70-74

14777

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

24959

Males

14703

M70-74

14703

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

24059

Males

14256

M70-74

14256

20K→Half

12.4 - 13.1 mi

Top 85%
×2story building
+19ft-37ft

Overall

24088

Males

14274

M70-74

14274

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23248

Males

13858

M70-74

13858

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

22839

Males

13547

M70-74

13547

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

22853

Males

13455

M70-74

13455

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

22673

Males

13284

M70-74

13284

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

22215

Males

13019

M70-74

13019

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

23270

Males

13464

M70-74

13464

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

22916

Males

13267

M70-74

13267

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22296

Males

12886

M70-74

12886

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23751

Males

13644

M70-74

13644

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

24277

Males

13907

M70-74

13907

Passing Analysis

Category:
Athletes Passed
2440
Passed By
297
Net Change
+2143
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26133
5K → 10K54323+520#26133#25613
10K → 15K25145+206#25613#25407
15K → 20K36512+353#25407#25054
20K → Half624+58#25054#24996
Half → 25K2978+289#24996#24707
25K → 30K32517+308#24707#24399
30K → 20M12011+109#24399#24290
20M → 21M12418+106#24290#24184
21M → 35K745+69#24184#24115
35K → 23M9539+56#24115#24059
23M → 24M6820+48#24059#24011
24M → 40K7320+53#24011#23958
40K → 25.2M815-7#23958#23965
25.2M → Finish3560-25#23965#23990
TOTALS2440297+2143
📊

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