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BOSTON MARATHON 2025

David Swan

Bib: 24840•M

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M65-69)
#0 / 639
Top 46%
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
8:41/mi
26:58
↑ 97↓ 3451.5%
10K· 6.21 mi
8:41/mi
53:57
↑ 79↓ 1380.4%
15K· 9.32 mi
8:50/mi
1:21:24
↑ 67↓ 78
20K· 12.43 mi
8:58/mi
1:49:15
↑ 106↓ 860.1%
Half· 13.11 mi
8:49/mi
1:55:16
↑ 19↓ 370.5%
25K· 15.53 mi
9:06/mi
2:17:19
↑ 66↓ 880.2%
30K· 18.64 mi
9:40/mi
2:47:22
↑ 181↓ 1480.2%
20M
10:01/mi
3:00:59
↑ 64↓ 500.2%
21M
10:50/mi
3:11:49
↑ 106↓ 241.6%
35K· 21.75 mi
9:20/mi
3:18:48
↑ 17↓ 861.7%
23M
10:09/mi
3:31:31
↑ 23↓ 630.6%
24M
9:48/mi
3:41:19
↓ 821.3%
40K· 24.85 mi
10:15/mi
3:50:05
↓ 200.3%
25.2M
11:59/mi
3:54:13
↑ 13↓ 160.2%
Finish· 26.22 mi
9:36/mi
4:04:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:16
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:08:44
Pace9:49 /mi
📊Positive Split: 11.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:3626:588:4126:58
8:41
-
10K
6.21 mi11:54:3553:578:4126:59
8:41
0:00
15K
9.32 mi12:22:021:21:248:4427:27
8:50
+0:09
20K
12.43 mi12:49:531:49:158:4727:51
8:58
+0:08
Half
13.11 mi12:55:541:55:168:486:01
8:49
-0:09
25K
15.53 mi13:17:572:17:198:5022:03
9:06
+0:17
30K
18.64 mi13:48:002:47:228:5930:03
9:40
+0:34
20M
20.00 mi14:01:373:00:599:0313:37
10:01
+0:21
21M
21.00 mi14:12:273:11:499:0810:50
10:50
+0:49
35K
21.75 mi14:19:263:18:489:086:59
9:20
-1:30
23M
23.00 mi14:32:093:31:319:1212:43
10:09
+0:49
24M
24.00 mi14:41:573:41:199:139:48
9:48
-0:21
40K
24.85 mi14:50:433:50:059:158:46
10:15
+0:27
25.2M
25.20 mi14:54:513:54:139:184:08
11:59
+1:44
Finish
26.22 mi15:04:384:04:009:199:47
9:36
-2:23

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

8:41 /mi

Average Pace

9:19 /mi

Slowest Pace

11:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:17:19

56% of race

Time at Steady Pace

1:10:14

29% of race

Time at Slower Pace

36:27

15% of race

Average Pace: 9:18 /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 mi11:27:3626:588:4126:58
8:41
#20911
10K
6.21 mi11:54:3553:578:4126:59
8:41
#20823
15K
9.32 mi12:22:021:21:248:4427:27
8:50
#20926
20K
12.43 mi12:49:531:49:158:4727:51
8:58
#20874
Half
13.11 mi12:55:541:55:168:486:01
8:49
#20882
25K
15.53 mi13:17:572:17:198:5022:03
9:06
#20814
30K
18.64 mi13:48:002:47:228:5930:03
9:40
#20764
20M
20.00 mi14:01:373:00:599:0313:37
10:01
#20788
21M
21.00 mi14:12:273:11:499:0810:50
10:50
#20802
35K
21.75 mi14:19:263:18:489:086:59
9:20
#20759
23M
23.00 mi14:32:093:31:319:1212:43
10:09
#20810
24M
24.00 mi14:41:573:41:199:139:48
9:48
#20819
40K
24.85 mi14:50:433:50:059:158:46
10:15
#20847
25.2M
25.20 mi14:54:513:54:139:184:08
11:59
#20879
Finish
26.22 mi15:04:384:04:009:199:47
9:36
#20890
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi20911128251282521196(Top 75%)13032(Top 81%)13032(Top 2039%)
10K6.21 mi3.10 mi20823+8812812+1312812+1320783(Top 73%)12815(Top 80%)12815(Top 2005%)
15K9.32 mi3.11 mi20926-10312867-5512867-5521196(Top 75%)13032(Top 81%)13032(Top 2039%)
20K12.43 mi3.11 mi20874+5212851+1612851+1620783(Top 73%)12791(Top 79%)12791(Top 2002%)
Half13.11 mi0.68 mi20882-812859-812859-820969(Top 74%)12882(Top 80%)12882(Top 2016%)
25K15.53 mi2.42 mi20814+6812819+4012819+4020333(Top 72%)12565(Top 78%)12565(Top 1966%)
30K18.64 mi3.11 mi20764+5012744+7512744+7520608(Top 73%)12562(Top 78%)12562(Top 1966%)
20M20.00 mi1.36 mi20788-24127441274421002(Top 74%)12589(Top 78%)12589(Top 1970%)
21M21.00 mi1.00 mi20802-1412737+712737+720925(Top 74%)12456(Top 77%)12456(Top 1949%)
35K21.75 mi0.75 mi20759+4312696+4112696+4119710(Top 69%)11836(Top 73%)11836(Top 1852%)
23M23.00 mi1.25 mi20810-51126961269620981(Top 74%)12382(Top 77%)12382(Top 1938%)
24M24.00 mi1.00 mi20819-912689+712689+720713(Top 73%)12207(Top 76%)12207(Top 1910%)
40K24.85 mi0.85 mi20847-2812677+1212677+1221226(Top 75%)12390(Top 77%)12390(Top 1939%)
25.2M25.20 mi0.35 mi20879-3212681-412681-423175(Top 82%)13362(Top 83%)13362(Top 2091%)
Finish26.22 mi1.02 mi20890-1112669+1212669+1221540(Top 76%)12552(Top 78%)12552(Top 1964%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

21196

Males

13032

M65-69

13032

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

20783

Males

12815

M65-69

12815

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

21196

Males

13032

M65-69

13032

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

20783

Males

12791

M65-69

12791

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

20969

Males

12882

M65-69

12882

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

20333

Males

12565

M65-69

12565

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

20608

Males

12562

M65-69

12562

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

21002

Males

12589

M65-69

12589

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

20925

Males

12456

M65-69

12456

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

19710

Males

11836

M65-69

11836

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

20981

Males

12382

M65-69

12382

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

20713

Males

12207

M65-69

12207

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21226

Males

12390

M65-69

12390

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

23175

Males

13362

M65-69

13362

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

21540

Males

12552

M65-69

12552

Passing Analysis

Category:
Athletes Passed
1614
Passed By
1593
Net Change
+21
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20911
5K → 10K326238+88#20911#20823
10K → 15K154257-103#20823#20926
15K → 20K209157+52#20926#20874
20K → Half3139-8#20874#20882
Half → 25K184116+68#20882#20814
25K → 30K231181+50#20814#20764
30K → 20M88112-24#20764#20788
20M → 21M95109-14#20788#20802
21M → 35K7431+43#20802#20759
35K → 23M73124-51#20759#20810
23M → 24M5362-9#20810#20819
24M → 40K4270-28#20819#20847
40K → 25.2M1850-32#20847#20879
25.2M → Finish3647-11#20879#20890
TOTALS16141593+21
📊

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