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BOSTON MARATHON 2025

David Dawson

Bib: 11853•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 33%
Gender (Male)
#0 / 16105
Top 46%
Masters (Masters Men)
#0 / 10463
Top 35%
Division (M45-49)
#0 / 2386
Top 49%
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
7:11/mi
22:19
↑ 97↓ 3451.5%
10K· 6.21 mi
7:10/mi
44:36
↑ 79↓ 1380.4%
15K· 9.32 mi
7:14/mi
1:07:03
↑ 67↓ 78
20K· 12.43 mi
7:16/mi
1:29:38
↑ 106↓ 860.1%
Half· 13.11 mi
7:14/mi
1:34:34
↑ 19↓ 370.5%
25K· 15.53 mi
7:15/mi
1:52:08
↑ 66↓ 880.2%
30K· 18.64 mi
7:39/mi
2:15:53
↑ 181↓ 1480.2%
20M
8:11/mi
2:27:00
↑ 64↓ 500.2%
21M
9:12/mi
2:36:12
↑ 106↓ 241.6%
35K· 21.75 mi
7:34/mi
2:41:52
↑ 17↓ 861.7%
23M
8:10/mi
2:52:06
↑ 23↓ 630.6%
24M
7:46/mi
2:59:52
↓ 821.3%
40K· 24.85 mi
7:50/mi
3:06:34
↓ 200.3%
25.2M
8:54/mi
3:09:38
↑ 13↓ 160.2%
Finish· 26.22 mi
7:48/mi
3:17:35
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:34
Pace7:13 /mi
2nd Half
Distance13.11 mi
Time1:43:01
Pace7:52 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:5422:197:1122:19
7:11
-
10K
6.21 mi11:13:1144:367:1122:17
7:10
-0:01
15K
9.32 mi11:35:381:07:037:1222:27
7:14
+0:04
20K
12.43 mi11:58:131:29:387:1322:35
7:16
+0:02
Half
13.11 mi12:03:091:34:347:134:56
7:14
-0:02
25K
15.53 mi12:20:431:52:087:1317:34
7:15
+0:01
30K
18.64 mi12:44:282:15:537:1723:45
7:39
+0:24
20M
20.00 mi12:55:352:27:007:2111:07
8:11
+0:32
21M
21.00 mi13:04:472:36:127:269:12
9:12
+1:01
35K
21.75 mi13:10:272:41:527:275:40
7:34
-1:38
23M
23.00 mi13:20:412:52:067:2910:14
8:10
+0:36
24M
24.00 mi13:28:272:59:527:307:46
7:46
-0:24
40K
24.85 mi13:35:093:06:347:306:42
7:50
+0:04
25.2M
25.20 mi13:38:133:09:387:323:04
8:54
+1:04
Finish
26.22 mi13:46:103:17:357:327:57
7:48
-1:06

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

7:10 /mi

Average Pace

7:32 /mi

Slowest Pace

9:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:08

57% of race

Time at Steady Pace

51:50

26% of race

Time at Slower Pace

33:37

17% of race

Average Pace: 7:32 /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 mi10:50:5422:197:1122:19
7:11
#9317
10K
6.21 mi11:13:1144:367:1122:17
7:10
#9269
15K
9.32 mi11:35:381:07:037:1222:27
7:14
#9281
20K
12.43 mi11:58:131:29:387:1322:35
7:16
#9106
Half
13.11 mi12:03:091:34:347:134:56
7:14
#9113
25K
15.53 mi12:20:431:52:087:1317:34
7:15
#8843
30K
18.64 mi12:44:282:15:537:1723:45
7:39
#8743
20M
20.00 mi12:55:352:27:007:2111:07
8:11
#8954
21M
21.00 mi13:04:472:36:127:269:12
9:12
#9293
35K
21.75 mi13:10:272:41:527:275:40
7:34
#9268
23M
23.00 mi13:20:412:52:067:2910:14
8:10
#9346
24M
24.00 mi13:28:272:59:527:307:46
7:46
#9333
40K
24.85 mi13:35:093:06:347:306:42
7:50
#9297
25.2M
25.20 mi13:38:133:09:387:323:04
8:54
#9304
Finish
26.22 mi13:46:103:17:357:327:57
7:48
#9391
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi9317777977799331(Top 33%)7729(Top 48%)7729(Top 324%)
10K6.21 mi3.10 mi9269+487760+197760+199249(Top 33%)7743(Top 48%)7743(Top 325%)
15K9.32 mi3.11 mi9281-127744+167744+169331(Top 33%)7729(Top 48%)7729(Top 324%)
20K12.43 mi3.11 mi9106+1757623+1217623+1218780(Top 31%)7328(Top 46%)7328(Top 307%)
Half13.11 mi0.68 mi9113-77626-37626-39313(Top 33%)7656(Top 48%)7656(Top 321%)
25K15.53 mi2.42 mi8843+2707436+1907436+1907953(Top 28%)6738(Top 42%)6738(Top 282%)
30K18.64 mi3.11 mi8743+1007329+1077329+1078785(Top 31%)7026(Top 44%)7026(Top 294%)
20M20.00 mi1.36 mi8954-2117410-817410-8111663(Top 41%)8353(Top 52%)8353(Top 350%)
21M21.00 mi1.00 mi9293-3397557-1477557-14714587(Top 51%)9598(Top 60%)9598(Top 402%)
35K21.75 mi0.75 mi9268+257523+347523+349135(Top 32%)6925(Top 43%)6925(Top 290%)
23M23.00 mi1.25 mi9346-787530-77530-711176(Top 39%)7828(Top 49%)7828(Top 328%)
24M24.00 mi1.00 mi9333+137492+387492+389541(Top 34%)6933(Top 43%)6933(Top 291%)
40K24.85 mi0.85 mi9297+367431+617431+619000(Top 32%)6524(Top 41%)6524(Top 273%)
25.2M25.20 mi0.35 mi9304-77416+157416+1511120(Top 39%)7526(Top 47%)7526(Top 315%)
Finish26.22 mi1.02 mi9391-877424-87424-811412(Top 40%)7707(Top 48%)7707(Top 323%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21story building
+97ft-345ft

Overall

9331

Males

7729

M45-49

7729

5K→10K

3.1 - 6.2 mi

Top 33%
×5story building
+79ft-138ft

Overall

9249

Males

7743

M45-49

7743

10K→15K

6.2 - 9.3 mi

Top 33%
×3story building
+67ft-78ft

Overall

9331

Males

7729

M45-49

7729

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

8780

Males

7328

M45-49

7328

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

9313

Males

7656

M45-49

7656

Half→25K

13.1 - 15.5 mi

Top 28%
×4story building
+66ft-88ft

Overall

7953

Males

6738

M45-49

6738

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8785

Males

7026

M45-49

7026

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

11663

Males

8353

M45-49

8353

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

14587

Males

9598

M45-49

9598

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

9135

Males

6925

M45-49

6925

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

11176

Males

7828

M45-49

7828

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

9541

Males

6933

M45-49

6933

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9000

Males

6524

M45-49

6524

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

11120

Males

7526

M45-49

7526

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

11412

Males

7707

M45-49

7707

Passing Analysis

Category:
Athletes Passed
1761
Passed By
1835
Net Change
-74
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9317
5K → 10K256208+48#9317#9269
10K → 15K156168-12#9269#9281
15K → 20K25277+175#9281#9106
20K → Half2835-7#9106#9113
Half → 25K30232+270#9113#8843
25K → 30K257157+100#8843#8743
30K → 20M49260-211#8743#8954
20M → 21M32371-339#8954#9293
21M → 35K7449+25#9293#9268
35K → 23M92170-78#9268#9346
23M → 24M9178+13#9346#9333
24M → 40K9357+36#9333#9297
40K → 25.2M3441-7#9297#9304
25.2M → Finish45132-87#9304#9391
TOTALS17611835-74
📊

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