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BOSTON MARATHON 2023

Peter Kroon

Bib: 8518•M

MI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 13%
Gender (Male)
#0 / 15176
Top 22%
Division (M18-39)
#0 / 5285
Top 46%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:48
Rank: #3620
Start → 5K
20:48 | 6:42/mi
10K· 6.21 mi
41:40
Rank: #4030 (-410)
5K → 10K
20:52 | 6:43/mi
15K· 9.32 mi
1:03:00
Rank: #4593 (-563)
10K → 15K
21:20 | 6:52/mi
20K· 12.43 mi
1:24:33
Rank: #4877 (-284)
15K → 20K
21:33 | 6:56/mi
Half· 13.11 mi
1:28:58
Rank: #4718 (+159)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:45:28
Rank: #4578 (+140)
Half → 25K
16:30 | 6:48/mi
30K· 18.64 mi
2:07:00
Rank: #4409 (+169)
25K → 30K
21:32 | 6:56/mi
20M
2:16:23
Rank: #4308 (+101)
30K → 20M
9:23 | 6:54/mi
21M
2:23:28
Rank: #4155 (+153)
20M → 21M
7:05 | 7:05/mi
35K· 21.75 mi
2:28:28
Rank: #4112 (+43)
21M → 35K
5:00 | 6:41/mi
23M
2:37:07
Rank: #4024 (+88)
35K → 23M
8:39 | 6:55/mi
24M
2:43:42
Rank: #3920 (+104)
23M → 24M
6:35 | 6:35/mi
40K· 24.85 mi
2:49:25
Rank: #3805 (+115)
24M → 40K
5:43 | 6:41/mi
25.2M
2:51:52
Rank: #3760 (+45)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:58:17
Rank: #3580 (+180)
25.2M → Finish
6:25 | 6:18/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:28:58
Pace6:47 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:29:19
Pace6:49 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:5420:486:4220:48
6:42
-
10K
6.21 mi11:06:4641:406:4220:52
6:43
+0:01
15K
9.32 mi11:28:061:03:006:4621:20
6:52
+0:09
20K
12.43 mi11:49:391:24:336:4821:33
6:56
+0:04
Half
13.11 mi11:54:041:28:586:474:25
6:28
-0:28
25K
15.53 mi12:10:341:45:286:4716:30
6:48
+0:20
30K
18.64 mi12:32:062:07:006:4921:32
6:56
+0:08
20M
20.00 mi12:41:292:16:236:499:23
6:54
-0:02
21M
21.00 mi12:48:342:23:286:507:05
7:05
+0:11
35K
21.75 mi12:53:342:28:286:505:00
6:41
-0:24
23M
23.00 mi13:02:132:37:076:508:39
6:55
+0:14
24M
24.00 mi13:08:482:43:426:496:35
6:35
-0:20
40K
24.85 mi13:14:312:49:256:495:43
6:41
+0:06
25.2M
25.20 mi13:16:582:51:526:492:27
7:06
+0:25
Finish
26.22 mi13:23:232:58:176:486:25
6:18
-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

6:18 /mi

Average Pace

6:48 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:40

70% of race

Time at Steady Pace

52:37

30% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:48 /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 mi10:45:5420:486:4220:48
6:42
#3620
10K
6.21 mi11:06:4641:406:4220:52
6:43
#4030
15K
9.32 mi11:28:061:03:006:4621:20
6:52
#4593
20K
12.43 mi11:49:391:24:336:4821:33
6:56
#4877
Half
13.11 mi11:54:041:28:586:474:25
6:28
#4718
25K
15.53 mi12:10:341:45:286:4716:30
6:48
#4578
30K
18.64 mi12:32:062:07:006:4921:32
6:56
#4409
20M
20.00 mi12:41:292:16:236:499:23
6:54
#4308
21M
21.00 mi12:48:342:23:286:507:05
7:05
#4155
35K
21.75 mi12:53:342:28:286:505:00
6:41
#4112
23M
23.00 mi13:02:132:37:076:508:39
6:55
#4024
24M
24.00 mi13:08:482:43:426:496:35
6:35
#3920
40K
24.85 mi13:14:312:49:256:495:43
6:41
#3805
25.2M
25.20 mi13:16:582:51:526:492:27
7:06
#3760
Finish
26.22 mi13:23:232:58:176:486:25
6:18
#3580
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3620341034105684(Top 21%)5215(Top 34%)5215(Top 99%)
10K6.21 mi3.10 mi4030-4103787-3773787-3774489(Top 17%)4194(Top 28%)4194(Top 79%)
15K9.32 mi3.11 mi4593-5634288-5014288-5015684(Top 21%)5215(Top 34%)5215(Top 99%)
20K12.43 mi3.11 mi4877-2844542-2544542-2545570(Top 21%)5118(Top 34%)5118(Top 97%)
Half13.11 mi0.68 mi4718+1594397+1454397+1452672(Top 10%)2566(Top 17%)2566(Top 49%)
25K15.53 mi2.42 mi4578+1404274+1234274+1234178(Top 16%)3909(Top 26%)3909(Top 74%)
30K18.64 mi3.11 mi4409+1694119+1554119+1553871(Top 15%)3626(Top 24%)3626(Top 69%)
20M20.00 mi1.36 mi4308+1014030+894030+893454(Top 13%)3226(Top 21%)3226(Top 61%)
21M21.00 mi1.00 mi4155+1533893+1373893+1372566(Top 10%)2424(Top 16%)2424(Top 46%)
35K21.75 mi0.75 mi4112+433852+413852+413458(Top 13%)3210(Top 21%)3210(Top 61%)
23M23.00 mi1.25 mi4024+883772+803772+803282(Top 12%)3051(Top 20%)3051(Top 58%)
24M24.00 mi1.00 mi3920+1043676+963676+962495(Top 9%)2331(Top 15%)2331(Top 44%)
40K24.85 mi0.85 mi3805+1153576+1003576+1002303(Top 9%)2141(Top 14%)2141(Top 41%)
25.2M25.20 mi0.35 mi3760+453534+423534+422158(Top 8%)2014(Top 13%)2014(Top 38%)
Finish26.22 mi1.02 mi3580+1803369+1653369+1651641(Top 6%)1546(Top 10%)1546(Top 29%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5684

Males

5215

M18-39

5215

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4489

Males

4194

M18-39

4194

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5684

Males

5215

M18-39

5215

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5570

Males

5118

M18-39

5118

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2672

Males

2566

M18-39

2566

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4178

Males

3909

M18-39

3909

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

3871

Males

3626

M18-39

3626

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3454

Males

3226

M18-39

3226

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2566

Males

2424

M18-39

2424

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3458

Males

3210

M18-39

3210

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3282

Males

3051

M18-39

3051

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2495

Males

2331

M18-39

2331

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2303

Males

2141

M18-39

2141

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2158

Males

2014

M18-39

2014

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1641

Males

1546

M18-39

1546

Passing Analysis

Category:
Athletes Passed
1596
Passed By
1556
Net Change
+40
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3620
5K → 10K75485-410#3620#4030
10K → 15K29592-563#4030#4593
15K → 20K30314-284#4593#4877
20K → Half1601+159#4877#4718
Half → 25K17636+140#4718#4578
25K → 30K21142+169#4578#4409
30K → 20M12423+101#4409#4308
20M → 21M1596+153#4308#4155
21M → 35K5714+43#4155#4112
35K → 23M10820+88#4112#4024
23M → 24M11410+104#4024#3920
24M → 40K1216+115#3920#3805
40K → 25.2M505+45#3805#3760
25.2M → Finish1822+180#3760#3580
TOTALS15961556+40
📊

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