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BOSTON MARATHON 2025

Gerard Van Der Laan

Bib: 10811 M NL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 22%
Masters (Masters Men)
#0 / 10463
Top 9%
Division (M50-54)
#0 / 1996
Top 5%
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
6:49/mi
21:11
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:37/mi
41:45
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:35/mi
1:02:13
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:39/mi
1:22:53
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:33/mi
1:27:21
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:39/mi
1:43:29
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
6:51/mi
2:04:45
↑ 181↓ 1480.2%
138 ft elev
20M
6:57/mi
2:14:12
↑ 64↓ 500.2%
148 ft elev
21M
7:21/mi
2:21:33
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:48/mi
2:26:38
↑ 17↓ 861.7%
156 ft elev
23M
6:59/mi
2:35:22
↑ 23↓ 630.6%
116 ft elev
24M
6:50/mi
2:42:12
↓ 821.3%
34 ft elev
40K· 24.85 mi
6:52/mi
2:48:04
↓ 200.3%
20 ft elev
25.2M
7:32/mi
2:50:40
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:44/mi
2:57:32
↑ 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
Time1:27:21
Pace6:40 /mi
2nd Half
Distance13.11 mi
Time1:30:11
Pace6:53 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0921:116:4921:11
6:49
-
10K
6.21 mi11:08:4341:456:4320:34
6:37
-0:12
15K
9.32 mi11:29:111:02:136:4120:28
6:35
-0:02
20K
12.43 mi11:49:511:22:536:4020:40
6:39
+0:04
Half
13.11 mi11:54:191:27:216:404:28
6:33
-0:06
25K
15.53 mi12:10:271:43:296:4016:08
6:39
+0:06
30K
18.64 mi12:31:432:04:456:4221:16
6:51
+0:12
20M
20.00 mi12:41:102:14:126:439:27
6:57
+0:06
21M
21.00 mi12:48:312:21:336:447:21
7:21
+0:24
35K
21.75 mi12:53:362:26:386:455:05
6:48
-0:33
23M
23.00 mi13:02:202:35:226:458:44
6:59
+0:11
24M
24.00 mi13:09:102:42:126:466:50
6:50
-0:09
40K
24.85 mi13:15:022:48:046:465:52
6:52
+0:02
25.2M
25.20 mi13:17:382:50:406:462:36
7:32
+0:40
Finish
26.22 mi13:24:302:57:326:476:52
6:44
-0:48

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

6:33 /mi

Average Pace

6:47 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:35

94% of race

Time at Steady Pace

9:57

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:46 /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 mi10:48:0921:116:4921:11
6:49
#6437
10K
6.21 mi11:08:4341:456:4320:34
6:37
#5540
15K
9.32 mi11:29:111:02:136:4120:28
6:35
#5000
20K
12.43 mi11:49:511:22:536:4020:40
6:39
#4719
Half
13.11 mi11:54:191:27:216:404:28
6:33
#4663
25K
15.53 mi12:10:271:43:296:4016:08
6:39
#4474
30K
18.64 mi12:31:432:04:456:4221:16
6:51
#4245
20M
20.00 mi12:41:102:14:126:439:27
6:57
#4179
21M
21.00 mi12:48:312:21:336:447:21
7:21
#4141
35K
21.75 mi12:53:362:26:386:455:05
6:48
#4118
23M
23.00 mi13:02:202:35:226:458:44
6:59
#4057
24M
24.00 mi13:09:102:42:126:466:50
6:50
#4016
40K
24.85 mi13:15:022:48:046:465:52
6:52
#3943
25.2M
25.20 mi13:17:382:50:406:462:36
7:32
#3930
Finish
26.22 mi13:24:302:57:326:476:52
6:44
#3902
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi6437586358634124(Top 15%)3879(Top 24%)3879(Top 194%)
10K6.21 mi3.10 mi5540+8975120+7435120+7434616(Top 16%)4322(Top 27%)4322(Top 217%)
15K9.32 mi3.11 mi5000+5404660+4604660+4604124(Top 15%)3879(Top 24%)3879(Top 194%)
20K12.43 mi3.11 mi4719+2814405+2554405+2554017(Top 14%)3772(Top 23%)3772(Top 189%)
Half13.11 mi0.68 mi4663+564356+494356+493965(Top 14%)3729(Top 23%)3729(Top 187%)
25K15.53 mi2.42 mi4474+1894187+1694187+1693809(Top 13%)3569(Top 22%)3569(Top 179%)
30K18.64 mi3.11 mi4245+2293974+2133974+2133707(Top 13%)3429(Top 21%)3429(Top 172%)
20M20.00 mi1.36 mi4179+663910+643910+643814(Top 13%)3507(Top 22%)3507(Top 176%)
21M21.00 mi1.00 mi4141+383869+413869+413841(Top 14%)3491(Top 22%)3491(Top 175%)
35K21.75 mi0.75 mi4118+233839+303839+304044(Top 14%)3619(Top 22%)3619(Top 181%)
23M23.00 mi1.25 mi4057+613773+663773+663592(Top 13%)3248(Top 20%)3248(Top 163%)
24M24.00 mi1.00 mi4016+413733+403733+403682(Top 13%)3278(Top 20%)3278(Top 164%)
40K24.85 mi0.85 mi3943+733663+703663+703138(Top 11%)2811(Top 17%)2811(Top 141%)
25.2M25.20 mi0.35 mi3930+133648+153648+153536(Top 12%)3080(Top 19%)3080(Top 154%)
Finish26.22 mi1.02 mi3902+283611+373611+374102(Top 14%)3505(Top 22%)3505(Top 176%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21story building
+97ft-345ft

Overall

4124

Males

3879

M50-54

3879

5K→10K

3.1 - 6.2 mi

Top 16%
×5story building
+79ft-138ft

Overall

4616

Males

4322

M50-54

4322

10K→15K

6.2 - 9.3 mi

Top 15%
×3story building
+67ft-78ft

Overall

4124

Males

3879

M50-54

3879

15K→20K

9.3 - 12.4 mi

Top 14%
×5story building
+106ft-86ft

Overall

4017

Males

3772

M50-54

3772

20K→Half

12.4 - 13.1 mi

Top 14%
×2story building
+19ft-37ft

Overall

3965

Males

3729

M50-54

3729

Half→25K

13.1 - 15.5 mi

Top 13%
×4story building
+66ft-88ft

Overall

3809

Males

3569

M50-54

3569

25K→30K

15.5 - 18.6 mi

Top 13%
×9story building
+181ft-148ft

Overall

3707

Males

3429

M50-54

3429

30K→20M

18.6 - 20.0 mi

Top 13%
×5story building
+64ft-50ft

Overall

3814

Males

3507

M50-54

3507

20M→21M

20.0 - 21.0 mi

Top 14%
×8story building
+106ft-24ft

Overall

3841

Males

3491

M50-54

3491

21M→35K

21.0 - 21.8 mi

Top 14%
×7story building
+17ft-86ft

Overall

4044

Males

3619

M50-54

3619

35K→23M

21.8 - 23.0 mi

Top 13%
×5story building
+23ft-63ft

Overall

3592

Males

3248

M50-54

3248

23M→24M

23.0 - 24.0 mi

Top 13%
×6story building
+12ft-82ft

Overall

3682

Males

3278

M50-54

3278

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3138

Males

2811

M50-54

2811

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3536

Males

3080

M50-54

3080

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2story building
+22ft-21ft

Overall

4102

Males

3505

M50-54

3505

Passing Analysis

Category:
Athletes Passed
2851
Passed By
316
Net Change
+2535
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6437
5K → 10K9047+897#6437#5540
10K → 15K5488+540#5540#5000
15K → 20K29918+281#5000#4719
20K → Half615+56#4719#4663
Half → 25K20920+189#4663#4474
25K → 30K26536+229#4474#4245
30K → 20M10741+66#4245#4179
20M → 21M7739+38#4179#4141
21M → 35K4522+23#4141#4118
35K → 23M9332+61#4118#4057
23M → 24M6726+41#4057#4016
24M → 40K8411+73#4016#3943
40K → 25.2M2815+13#3943#3930
25.2M → Finish6436+28#3930#3902
TOTALS2851316+2535
📊

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