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BOSTON MARATHON 2025

Dennis Van Der Kleij

Bib: 11918•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 22%
Gender (Male)
#0 / 16105
Top 34%
Masters (Masters Men)
#0 / 10463
Top 20%
Division (M45-49)
#0 / 2386
Top 28%
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
7:02/mi
21:51
↑ 97↓ 3451.5%
10K· 6.21 mi
7:01/mi
43:38
↑ 79↓ 1380.4%
15K· 9.32 mi
7:02/mi
1:05:28
↑ 67↓ 78
20K· 12.43 mi
7:01/mi
1:27:17
↑ 106↓ 860.1%
Half· 13.11 mi
6:50/mi
1:31:57
↑ 19↓ 370.5%
25K· 15.53 mi
6:59/mi
1:48:54
↑ 66↓ 880.2%
30K· 18.64 mi
7:18/mi
2:11:35
↑ 181↓ 1480.2%
20M
7:27/mi
2:21:43
↑ 64↓ 500.2%
21M
7:45/mi
2:29:28
↑ 106↓ 241.6%
35K· 21.75 mi
7:01/mi
2:34:43
↑ 17↓ 861.7%
23M
7:20/mi
2:43:54
↑ 23↓ 630.6%
24M
7:14/mi
2:51:08
↓ 821.3%
40K· 24.85 mi
7:14/mi
2:57:19
↓ 200.3%
25.2M
8:01/mi
3:00:05
↑ 13↓ 160.2%
Finish· 26.22 mi
6:56/mi
3:07:09
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:57
Pace7:01 /mi
2nd Half
Distance13.11 mi
Time1:35:12
Pace7:16 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:2921:517:0221:51
7:02
-
10K
6.21 mi11:11:1643:387:0121:47
7:01
-0:01
15K
9.32 mi11:33:061:05:287:0121:50
7:02
+0:01
20K
12.43 mi11:54:551:27:177:0121:49
7:01
-0:01
Half
13.11 mi11:59:351:31:577:014:40
6:50
-0:11
25K
15.53 mi12:16:321:48:547:0116:57
6:59
+0:09
30K
18.64 mi12:39:132:11:357:0422:41
7:18
+0:19
20M
20.00 mi12:49:212:21:437:0510:08
7:27
+0:09
21M
21.00 mi12:57:062:29:287:077:45
7:45
+0:18
35K
21.75 mi13:02:212:34:437:075:15
7:01
-0:44
23M
23.00 mi13:11:322:43:547:089:11
7:20
+0:19
24M
24.00 mi13:18:462:51:087:087:14
7:14
-0:06
40K
24.85 mi13:24:572:57:197:086:11
7:14
0:00
25.2M
25.20 mi13:27:433:00:057:092:46
8:01
+0:47
Finish
26.22 mi13:34:473:07:097:097:04
6:56
-1:05

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

6:50 /mi

Average Pace

7:09 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:38

94% of race

Time at Steady Pace

10:31

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:08 /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 mi10:49:2921:517:0221:51
7:02
#8056
10K
6.21 mi11:11:1643:387:0121:47
7:01
#8019
15K
9.32 mi11:33:061:05:287:0121:50
7:02
#7921
20K
12.43 mi11:54:551:27:177:0121:49
7:01
#7636
Half
13.11 mi11:59:351:31:577:014:40
6:50
#7579
25K
15.53 mi12:16:321:48:547:0116:57
6:59
#7328
30K
18.64 mi12:39:132:11:357:0422:41
7:18
#7060
20M
20.00 mi12:49:212:21:437:0510:08
7:27
#6968
21M
21.00 mi12:57:062:29:287:077:45
7:45
#6796
35K
21.75 mi13:02:212:34:437:075:15
7:01
#6712
23M
23.00 mi13:11:322:43:547:089:11
7:20
#6561
24M
24.00 mi13:18:462:51:087:087:14
7:14
#6498
40K
24.85 mi13:24:572:57:197:086:11
7:14
#6402
25.2M
25.20 mi13:27:433:00:057:092:46
8:01
#6374
Finish
26.22 mi13:34:473:07:097:097:04
6:56
#6263
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi8056703270327797(Top 27%)6805(Top 42%)6805(Top 285%)
10K6.21 mi3.10 mi8019+376995+376995+377984(Top 28%)6958(Top 43%)6958(Top 292%)
15K9.32 mi3.11 mi7921+986930+656930+657797(Top 27%)6805(Top 42%)6805(Top 285%)
20K12.43 mi3.11 mi7636+2856719+2116719+2117000(Top 25%)6202(Top 39%)6202(Top 260%)
Half13.11 mi0.68 mi7579+576680+396680+396430(Top 23%)5770(Top 36%)5770(Top 242%)
25K15.53 mi2.42 mi7328+2516489+1916489+1916263(Top 22%)5587(Top 35%)5587(Top 234%)
30K18.64 mi3.11 mi7060+2686255+2346255+2346452(Top 23%)5616(Top 35%)5616(Top 235%)
20M20.00 mi1.36 mi6968+926150+1056150+1056704(Top 24%)5645(Top 35%)5645(Top 237%)
21M21.00 mi1.00 mi6796+1726008+1426008+1425899(Top 21%)4999(Top 31%)4999(Top 210%)
35K21.75 mi0.75 mi6712+845930+785930+785442(Top 19%)4682(Top 29%)4682(Top 196%)
23M23.00 mi1.25 mi6561+1515788+1425788+1425628(Top 20%)4753(Top 30%)4753(Top 199%)
24M24.00 mi1.00 mi6498+635728+605728+606002(Top 21%)4916(Top 31%)4916(Top 206%)
40K24.85 mi0.85 mi6402+965632+965632+965202(Top 18%)4343(Top 27%)4343(Top 182%)
25.2M25.20 mi0.35 mi6374+285601+315601+316000(Top 21%)4726(Top 29%)4726(Top 198%)
Finish26.22 mi1.02 mi6263+1115499+1025499+1025295(Top 19%)4306(Top 27%)4306(Top 180%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7797

Males

6805

M45-49

6805

5K→10K

3.1 - 6.2 mi

Top 28%
×5story building
+79ft-138ft

Overall

7984

Males

6958

M45-49

6958

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7797

Males

6805

M45-49

6805

15K→20K

9.3 - 12.4 mi

Top 25%
×5story building
+106ft-86ft

Overall

7000

Males

6202

M45-49

6202

20K→Half

12.4 - 13.1 mi

Top 23%
×2story building
+19ft-37ft

Overall

6430

Males

5770

M45-49

5770

Half→25K

13.1 - 15.5 mi

Top 22%
×4story building
+66ft-88ft

Overall

6263

Males

5587

M45-49

5587

25K→30K

15.5 - 18.6 mi

Top 23%
×9story building
+181ft-148ft

Overall

6452

Males

5616

M45-49

5616

30K→20M

18.6 - 20.0 mi

Top 24%
×5story building
+64ft-50ft

Overall

6704

Males

5645

M45-49

5645

20M→21M

20.0 - 21.0 mi

Top 21%
×8story building
+106ft-24ft

Overall

5899

Males

4999

M45-49

4999

21M→35K

21.0 - 21.8 mi

Top 19%
×7story building
+17ft-86ft

Overall

5442

Males

4682

M45-49

4682

35K→23M

21.8 - 23.0 mi

Top 20%
×5story building
+23ft-63ft

Overall

5628

Males

4753

M45-49

4753

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

6002

Males

4916

M45-49

4916

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5202

Males

4343

M45-49

4343

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

6000

Males

4726

M45-49

4726

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2story building
+22ft-21ft

Overall

5295

Males

4306

M45-49

4306

Passing Analysis

Category:
Athletes Passed
2322
Passed By
529
Net Change
+1793
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8056
5K → 10K232195+37#8056#8019
10K → 15K19597+98#8019#7921
15K → 20K30015+285#7921#7636
20K → Half614+57#7636#7579
Half → 25K26110+251#7579#7328
25K → 30K31446+268#7328#7060
30K → 20M15058+92#7060#6968
20M → 21M18715+172#6968#6796
21M → 35K906+84#6796#6712
35K → 23M16716+151#6712#6561
23M → 24M9633+63#6561#6498
24M → 40K10711+96#6498#6402
40K → 25.2M3911+28#6402#6374
25.2M → Finish12312+111#6374#6263
TOTALS2322529+1793
📊

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