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BOSTON MARATHON 2025

Ronald Langenhuizen

Bib: 4736•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 23%
Masters (Masters Men)
#0 / 10463
Top 10%
Division (M45-49)
#0 / 2386
Top 12%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:05
Rank: #3561
Start → 5K
20:05 | 6:28/mi
10K· 6.21 mi
40:22
Rank: #3745 (-184)
5K → 10K
20:17 | 6:32/mi
15K· 9.32 mi
1:00:53
Rank: #3902 (-157)
10K → 15K
20:31 | 6:36/mi
20K· 12.43 mi
1:21:39
Rank: #3938 (-36)
15K → 20K
20:46 | 6:41/mi
Half· 13.11 mi
1:26:10
Rank: #3967 (-29)
20K → Half
4:31 | 6:37/mi
25K· 15.53 mi
1:42:37
Rank: #4029 (-62)
Half → 25K
16:27 | 6:47/mi
30K· 18.64 mi
2:04:22
Rank: #4095 (-66)
25K → 30K
21:45 | 7:00/mi
20M
2:13:54
Rank: #4077 (+18)
30K → 20M
9:32 | 7:01/mi
21M
2:21:23
Rank: #4092 (-15)
20M → 21M
7:29 | 7:29/mi
35K· 21.75 mi
2:26:30
Rank: #4086 (+6)
21M → 35K
5:07 | 6:50/mi
23M
2:35:36
Rank: #4126 (-40)
35K → 23M
9:06 | 7:16/mi
24M
2:42:46
Rank: #4156 (-30)
23M → 24M
7:10 | 7:10/mi
40K· 24.85 mi
2:48:44
Rank: #4123 (+33)
24M → 40K
5:58 | 6:59/mi
25.2M
2:51:17
Rank: #4102 (+21)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:57:52
Rank: #4001 (+101)
25.2M → Finish
6:35 | 6:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:10
Pace6:34 /mi
2nd Half
Distance13.11 mi
Time1:31:42
Pace7:00 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1520:056:2820:05
6:28
-
10K
6.21 mi10:43:3240:226:3020:17
6:32
+0:04
15K
9.32 mi11:04:031:00:536:3220:31
6:36
+0:04
20K
12.43 mi11:24:491:21:396:3420:46
6:41
+0:05
Half
13.11 mi11:29:201:26:106:344:31
6:37
-0:04
25K
15.53 mi11:45:471:42:376:3616:27
6:47
+0:10
30K
18.64 mi12:07:322:04:226:4021:45
7:00
+0:13
20M
20.00 mi12:17:042:13:546:429:32
7:01
+0:01
21M
21.00 mi12:24:332:21:236:447:29
7:29
+0:28
35K
21.75 mi12:29:402:26:306:445:07
6:50
-0:39
23M
23.00 mi12:38:462:35:366:469:06
7:16
+0:26
24M
24.00 mi12:45:562:42:466:477:10
7:10
-0:06
40K
24.85 mi12:51:542:48:446:475:58
6:59
-0:11
25.2M
25.20 mi12:54:272:51:176:482:33
7:24
+0:25
Finish
26.22 mi13:01:022:57:526:476:35
6:28
-0:56

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

6:28 /mi

Average Pace

6:47 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:34

85% of race

Time at Steady Pace

26:18

15% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:47 /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 mi10:23:1520:056:2820:05
6:28
#3561
10K
6.21 mi10:43:3240:226:3020:17
6:32
#3745
15K
9.32 mi11:04:031:00:536:3220:31
6:36
#3902
20K
12.43 mi11:24:491:21:396:3420:46
6:41
#3938
Half
13.11 mi11:29:201:26:106:344:31
6:37
#3967
25K
15.53 mi11:45:471:42:376:3616:27
6:47
#4029
30K
18.64 mi12:07:322:04:226:4021:45
7:00
#4095
20M
20.00 mi12:17:042:13:546:429:32
7:01
#4077
21M
21.00 mi12:24:332:21:236:447:29
7:29
#4092
35K
21.75 mi12:29:402:26:306:445:07
6:50
#4086
23M
23.00 mi12:38:462:35:366:469:06
7:16
#4126
24M
24.00 mi12:45:562:42:466:477:10
7:10
#4156
40K
24.85 mi12:51:542:48:446:475:58
6:59
#4123
25.2M
25.20 mi12:54:272:51:176:482:33
7:24
#4102
Finish
26.22 mi13:01:022:57:526:476:35
6:28
#4001
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi3561338233824241(Top 15%)3985(Top 25%)3985(Top 167%)
10K6.21 mi3.10 mi3745-1843548-1663548-1663923(Top 14%)3694(Top 23%)3694(Top 155%)
15K9.32 mi3.11 mi3902-1573680-1323680-1324241(Top 15%)3985(Top 25%)3985(Top 167%)
20K12.43 mi3.11 mi3938-363708-283708-284284(Top 15%)4007(Top 25%)4007(Top 168%)
Half13.11 mi0.68 mi3967-293735-273735-274513(Top 16%)4206(Top 26%)4206(Top 176%)
25K15.53 mi2.42 mi4029-623789-543789-544734(Top 17%)4357(Top 27%)4357(Top 183%)
30K18.64 mi3.11 mi4095-663840-513840-514671(Top 16%)4258(Top 26%)4258(Top 178%)
20M20.00 mi1.36 mi4077+183818+223818+224172(Top 15%)3811(Top 24%)3811(Top 160%)
21M21.00 mi1.00 mi4092-153826-83826-84510(Top 16%)4000(Top 25%)4000(Top 168%)
35K21.75 mi0.75 mi4086+63813+133813+134306(Top 15%)3835(Top 24%)3835(Top 161%)
23M23.00 mi1.25 mi4126-403836-233836-235247(Top 18%)4483(Top 28%)4483(Top 188%)
24M24.00 mi1.00 mi4156-303855-193855-195572(Top 20%)4635(Top 29%)4635(Top 194%)
40K24.85 mi0.85 mi4123+333810+453810+453739(Top 13%)3284(Top 20%)3284(Top 138%)
25.2M25.20 mi0.35 mi4102+213791+193791+192900(Top 10%)2579(Top 16%)2579(Top 108%)
Finish26.22 mi1.02 mi4001+1013697+943697+942612(Top 9%)2362(Top 15%)2362(Top 99%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

4241

Males

3985

M45-49

3985

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3923

Males

3694

M45-49

3694

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

4241

Males

3985

M45-49

3985

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

4284

Males

4007

M45-49

4007

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4513

Males

4206

M45-49

4206

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4734

Males

4357

M45-49

4357

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4671

Males

4258

M45-49

4258

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4172

Males

3811

M45-49

3811

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4510

Males

4000

M45-49

4000

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4306

Males

3835

M45-49

3835

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

5247

Males

4483

M45-49

4483

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5572

Males

4635

M45-49

4635

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3739

Males

3284

M45-49

3284

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2900

Males

2579

M45-49

2579

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2612

Males

2362

M45-49

2362

Passing Analysis

Category:
Athletes Passed
846
Passed By
1286
Net Change
-440
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3561
5K → 10K60244-184#3561#3745
10K → 15K51208-157#3745#3902
15K → 20K82118-36#3902#3938
20K → Half837-29#3938#3967
Half → 25K58120-62#3967#4029
25K → 30K119185-66#4029#4095
30K → 20M7254+18#4095#4077
20M → 21M5570-15#4077#4092
21M → 35K4337+6#4092#4086
35K → 23M5393-40#4086#4126
23M → 24M4272-30#4126#4156
24M → 40K5926+33#4156#4123
40K → 25.2M3312+21#4123#4102
25.2M → Finish11110+101#4102#4001
TOTALS8461286-440
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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