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BOSTON MARATHON 2025

Bo Boulund Knudsen

Bib: 26349 M DK

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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:49/mi
27:23
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:26/mi
53:35
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:33/mi
1:20:10
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:44/mi
1:47:18
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:33/mi
1:53:08
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:58/mi
2:14:53
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:28/mi
2:44:18
↑ 181↓ 1480.2%
138 ft elev
20M
10:35/mi
2:58:41
↑ 64↓ 500.2%
148 ft elev
21M
11:19/mi
3:10:00
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
10:10/mi
3:17:36
↑ 17↓ 861.7%
156 ft elev
23M
10:48/mi
3:31:07
↑ 23↓ 630.6%
116 ft elev
24M
10:45/mi
3:41:52
↓ 821.3%
34 ft elev
40K· 24.85 mi
10:26/mi
3:50:47
↓ 200.3%
20 ft elev
25.2M
11:59/mi
3:54:55
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
10:04/mi
4:05:11
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:08
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time2:12:03
Pace10:04 /mi
📊Positive Split: 16.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:0127:238:4927:23
8:49
-
10K
6.21 mi12:09:1353:358:3726:12
8:26
-0:23
15K
9.32 mi12:35:481:20:108:3626:35
8:33
+0:07
20K
12.43 mi13:02:561:47:188:3827:08
8:44
+0:11
Half
13.11 mi13:08:461:53:088:385:50
8:33
-0:11
25K
15.53 mi13:30:312:14:538:4121:45
8:58
+0:25
30K
18.64 mi13:59:562:44:188:4929:25
9:28
+0:30
20M
20.00 mi14:14:192:58:418:5614:23
10:35
+1:07
21M
21.00 mi14:25:383:10:009:0311:19
11:19
+0:44
35K
21.75 mi14:33:143:17:369:057:36
10:10
-1:09
23M
23.00 mi14:46:453:31:079:1113:31
10:48
+0:38
24M
24.00 mi14:57:303:41:529:1510:45
10:45
-0:03
40K
24.85 mi15:06:253:50:479:178:55
10:26
-0:19
25.2M
25.20 mi15:10:333:54:559:194:08
11:59
+1:33
Finish
26.22 mi15:20:494:05:119:2110:16
10:04
-1:55

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

8:26 /mi

Average Pace

9:21 /mi

Slowest Pace

11:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:18

67% of race

Time at Steady Pace

41:10

17% of race

Time at Slower Pace

39:43

16% of race

Average Pace: 9:21 /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 mi11:43:0127:238:4927:23
8:49
#21575
10K
6.21 mi12:09:1353:358:3726:12
8:26
#20515
15K
9.32 mi12:35:481:20:108:3626:35
8:33
#20217
20K
12.43 mi13:02:561:47:188:3827:08
8:44
#20046
Half
13.11 mi13:08:461:53:088:385:50
8:33
#20013
25K
15.53 mi13:30:312:14:538:4121:45
8:58
#19955
30K
18.64 mi13:59:562:44:188:4929:25
9:28
#19943
20M
20.00 mi14:14:192:58:418:5614:23
10:35
#20236
21M
21.00 mi14:25:383:10:009:0311:19
11:19
#20419
35K
21.75 mi14:33:143:17:369:057:36
10:10
#20526
23M
23.00 mi14:46:453:31:079:1113:31
10:48
#20732
24M
24.00 mi14:57:303:41:529:1510:45
10:45
#20916
40K
24.85 mi15:06:253:50:479:178:55
10:26
#20945
25.2M
25.20 mi15:10:333:54:559:194:08
11:59
#20986
Finish
26.22 mi15:20:494:05:119:2110:16
10:04
#21076
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi21575131201312019667(Top 69%)12360(Top 77%)12360(Top 982%)
10K6.21 mi3.10 mi20515+106012678+44212678+44219381(Top 68%)12230(Top 76%)12230(Top 971%)
15K9.32 mi3.11 mi20217+29812564+11412564+11419667(Top 69%)12360(Top 77%)12360(Top 982%)
20K12.43 mi3.11 mi20046+17112492+7212492+7219583(Top 69%)12277(Top 76%)12277(Top 975%)
Half13.11 mi0.68 mi20013+3312475+1712475+1719510(Top 69%)12274(Top 76%)12274(Top 975%)
25K15.53 mi2.42 mi19955+5812441+3412441+3419771(Top 70%)12314(Top 76%)12314(Top 978%)
30K18.64 mi3.11 mi19943+1212396+4512396+4519812(Top 70%)12209(Top 76%)12209(Top 970%)
20M20.00 mi1.36 mi20236-29312494-9812494-9822643(Top 80%)13357(Top 83%)13357(Top 1061%)
21M21.00 mi1.00 mi20419-18312556-6212556-6222176(Top 78%)13050(Top 81%)13050(Top 1037%)
35K21.75 mi0.75 mi20526-10712592-3612592-3622309(Top 79%)13057(Top 81%)13057(Top 1037%)
23M23.00 mi1.25 mi20732-20612664-7212664-7222734(Top 80%)13214(Top 82%)13214(Top 1050%)
24M24.00 mi1.00 mi20916-18412726-6212726-6223438(Top 83%)13525(Top 84%)13525(Top 1074%)
40K24.85 mi0.85 mi20945-2912721+512721+521709(Top 76%)12607(Top 78%)12607(Top 1001%)
25.2M25.20 mi0.35 mi20986-4112729-812729-823176(Top 82%)13363(Top 83%)13363(Top 1061%)
Finish26.22 mi1.02 mi21076-9012754-2512754-2523136(Top 81%)13341(Top 83%)13341(Top 1060%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

19667

Males

12360

M60-64

12360

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

19381

Males

12230

M60-64

12230

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

19667

Males

12360

M60-64

12360

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

19583

Males

12277

M60-64

12277

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

19510

Males

12274

M60-64

12274

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

19771

Males

12314

M60-64

12314

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

19812

Males

12209

M60-64

12209

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

22643

Males

13357

M60-64

13357

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

22176

Males

13050

M60-64

13050

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

22309

Males

13057

M60-64

13057

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

22734

Males

13214

M60-64

13214

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

23438

Males

13525

M60-64

13525

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21709

Males

12607

M60-64

12607

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

23176

Males

13363

M60-64

13363

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

23136

Males

13341

M60-64

13341

Passing Analysis

Category:
Athletes Passed
2473
Passed By
1974
Net Change
+499
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21575
5K → 10K110545+1060#21575#20515
10K → 15K35759+298#20515#20217
15K → 20K280109+171#20217#20046
20K → Half4613+33#20046#20013
Half → 25K186128+58#20013#19955
25K → 30K233221+12#19955#19943
30K → 20M44337-293#19943#20236
20M → 21M39222-183#20236#20419
21M → 35K33140-107#20419#20526
35K → 23M44250-206#20526#20732
23M → 24M21205-184#20732#20916
24M → 40K4776-29#20916#20945
40K → 25.2M1556-41#20945#20986
25.2M → Finish23113-90#20986#21076
TOTALS24731974+499
📊

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