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BOSTON MARATHON 2023

Peter Van Der Sleen

Bib: 20252•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
8:42/mi
27:02
↑ 97↓ 3451.5%
10K· 6.21 mi
8:29/mi
53:23
↑ 79↓ 1380.4%
15K· 9.32 mi
8:41/mi
1:20:22
↑ 67↓ 78
20K· 12.43 mi
9:07/mi
1:48:43
↑ 106↓ 860.1%
Half· 13.11 mi
8:32/mi
1:54:32
↑ 19↓ 370.5%
25K· 15.53 mi
8:39/mi
2:15:30
↑ 66↓ 880.2%
30K· 18.64 mi
9:10/mi
2:43:59
↑ 181↓ 1480.2%
20M
9:57/mi
2:57:30
↑ 64↓ 500.2%
21M
9:57/mi
3:07:26
↑ 106↓ 241.6%
35K· 21.75 mi
8:48/mi
3:14:01
↑ 17↓ 861.7%
23M
9:47/mi
3:26:16
↑ 23↓ 630.6%
24M
9:32/mi
3:35:48
↓ 821.3%
40K· 24.85 mi
9:45/mi
3:44:08
↓ 200.3%
25.2M
11:30/mi
3:48:06
↑ 13↓ 160.2%
Finish· 26.22 mi
9:49/mi
3:58:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:32
Pace8:44 /mi
2nd Half
Distance13.11 mi
Time2:03:34
Pace9:26 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:1927:028:4227:02
8:42
-
10K
6.21 mi11:45:4053:238:3526:21
8:29
-0:13
15K
9.32 mi12:12:391:20:228:3726:59
8:41
+0:12
20K
12.43 mi12:41:001:48:438:4528:21
9:07
+0:26
Half
13.11 mi12:46:491:54:328:445:49
8:32
-0:35
25K
15.53 mi13:07:472:15:308:4320:58
8:39
+0:07
30K
18.64 mi13:36:162:43:598:4828:29
9:10
+0:31
20M
20.00 mi13:49:472:57:308:5213:31
9:57
+0:47
21M
21.00 mi13:59:433:07:268:569:56
9:57
0:00
35K
21.75 mi14:06:183:14:018:556:35
8:48
-1:09
23M
23.00 mi14:18:333:26:168:5812:15
9:47
+0:59
24M
24.00 mi14:28:053:35:489:009:32
9:32
-0:15
40K
24.85 mi14:36:253:44:089:018:20
9:45
+0:13
25.2M
25.20 mi14:40:233:48:069:033:58
11:30
+1:45
Finish
26.22 mi14:50:233:58:069:0510:00
9:49
-1:41

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

8:29 /mi

Average Pace

9:05 /mi

Slowest Pace

11:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:09

45% of race

Time at Steady Pace

1:12:57

31% of race

Time at Slower Pace

58:00

24% of race

Average Pace: 9:05 /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 mi11:19:1927:028:4227:02
8:42
#18892
10K
6.21 mi11:45:4053:238:3526:21
8:29
#18479
15K
9.32 mi12:12:391:20:228:3726:59
8:41
#18602
20K
12.43 mi12:41:001:48:438:4528:21
9:07
#19055
Half
13.11 mi12:46:491:54:328:445:49
8:32
#19010
25K
15.53 mi13:07:472:15:308:4320:58
8:39
#18695
30K
18.64 mi13:36:162:43:598:4828:29
9:10
#18562
20M
20.00 mi13:49:472:57:308:5213:31
9:57
#18755
21M
21.00 mi13:59:433:07:268:569:56
9:57
#18669
35K
21.75 mi14:06:183:14:018:556:35
8:48
#18601
23M
23.00 mi14:18:333:26:168:5812:15
9:47
#18656
24M
24.00 mi14:28:053:35:489:009:32
9:32
#18710
40K
24.85 mi14:36:253:44:089:018:20
9:45
#18749
25.2M
25.20 mi14:40:233:48:069:033:58
11:30
#18817
Finish
26.22 mi14:50:233:58:069:0510:00
9:49
#18967
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi18892117361173618894(Top 71%)11834(Top 78%)11834(Top 1066%)
10K6.21 mi3.10 mi18479+41311644+9211644+9218140(Top 68%)11562(Top 76%)11562(Top 1042%)
15K9.32 mi3.11 mi18602-12311700-5611700-5618894(Top 71%)11834(Top 78%)11834(Top 1066%)
20K12.43 mi3.11 mi19055-45311885-18511885-18520248(Top 76%)12414(Top 82%)12414(Top 1118%)
Half13.11 mi0.68 mi19010+4511860+2511860+2517832(Top 67%)11438(Top 75%)11438(Top 1030%)
25K15.53 mi2.42 mi18695+31511726+13411726+13417085(Top 64%)11016(Top 73%)11016(Top 992%)
30K18.64 mi3.11 mi18562+13311639+8711639+8718015(Top 68%)11336(Top 75%)11336(Top 1021%)
20M20.00 mi1.36 mi18755-19311725-8611725-8620318(Top 76%)12255(Top 81%)12255(Top 1104%)
21M21.00 mi1.00 mi18669+8611682+4311682+4317824(Top 67%)11142(Top 73%)11142(Top 1004%)
35K21.75 mi0.75 mi18601+6811646+3611646+3616925(Top 64%)10674(Top 70%)10674(Top 962%)
23M23.00 mi1.25 mi18656-5511648-211648-219371(Top 73%)11729(Top 77%)11729(Top 1057%)
24M24.00 mi1.00 mi18710-5411657-911657-919317(Top 73%)11672(Top 77%)11672(Top 1052%)
40K24.85 mi0.85 mi18749-3911660-311660-319169(Top 72%)11566(Top 76%)11566(Top 1042%)
25.2M25.20 mi0.35 mi18817-6811684-2411684-2421535(Top 81%)12626(Top 83%)12626(Top 1137%)
Finish26.22 mi1.02 mi18967-15011752-6811752-6821181(Top 80%)12504(Top 82%)12504(Top 1126%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

18894

Males

11834

M60-64

11834

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

18140

Males

11562

M60-64

11562

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

18894

Males

11834

M60-64

11834

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

20248

Males

12414

M60-64

12414

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

17832

Males

11438

M60-64

11438

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

17085

Males

11016

M60-64

11016

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

18015

Males

11336

M60-64

11336

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

20318

Males

12255

M60-64

12255

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

17824

Males

11142

M60-64

11142

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

16925

Males

10674

M60-64

10674

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

19371

Males

11729

M60-64

11729

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

19317

Males

11672

M60-64

11672

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19169

Males

11566

M60-64

11566

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21535

Males

12626

M60-64

12626

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

21181

Males

12504

M60-64

12504

Passing Analysis

Category:
Athletes Passed
1822
Passed By
1897
Net Change
-75
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18892
5K → 10K613200+413#18892#18479
10K → 15K128251-123#18479#18602
15K → 20K53506-453#18602#19055
20K → Half5611+45#19055#19010
Half → 25K32712+315#19010#18695
25K → 30K236103+133#18695#18562
30K → 20M37230-193#18562#18755
20M → 21M13246+86#18755#18669
21M → 35K8416+68#18669#18601
35K → 23M60115-55#18601#18656
23M → 24M3892-54#18656#18710
24M → 40K3675-39#18710#18749
40K → 25.2M1179-68#18749#18817
25.2M → Finish11161-150#18817#18967
TOTALS18221897-75
📊

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