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BOSTON MARATHON 2023

David Kaplan

Bib: 30184•M

RI

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
33:17
Rank: #25213
Start → 5K
33:17 | 10:43/mi
10K· 6.21 mi
1:06:01
Rank: #24959 (+254)
5K → 10K
32:44 | 10:32/mi
15K· 9.32 mi
1:38:27
Rank: #24747 (+212)
10K → 15K
32:26 | 10:26/mi
20K· 12.43 mi
2:11:32
Rank: #24557 (+190)
15K → 20K
33:05 | 10:39/mi
Half· 13.11 mi
2:18:39
Rank: #24537 (+20)
20K → Half
7:07 | 10:26/mi
25K· 15.53 mi
2:45:15
Rank: #24431 (+106)
Half → 25K
26:36 | 10:58/mi
30K· 18.64 mi
3:20:49
Rank: #24297 (+134)
25K → 30K
35:34 | 11:27/mi
20M
3:36:37
Rank: #24252 (+45)
30K → 20M
15:48 | 11:38/mi
21M
3:50:20
Rank: #24295 (-43)
20M → 21M
13:43 | 13:43/mi
35K· 21.75 mi
3:59:15
Rank: #24320 (-25)
21M → 35K
8:55 | 11:55/mi
23M
4:15:24
Rank: #24393 (-73)
35K → 23M
16:09 | 12:54/mi
24M
4:27:44
Rank: #24430 (-37)
23M → 24M
12:20 | 12:20/mi
40K· 24.85 mi
4:38:53
Rank: #24482 (-52)
24M → 40K
11:09 | 13:02/mi
25.2M
4:43:16
Rank: #24480 (+2)
40K → 25.2M
4:23 | 12:43/mi
Finish· 26.22 mi
4:54:24
Rank: #24463 (+17)
25.2M → Finish
11:08 | 10:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:18:39
Pace10:35 /mi
2nd Half
Distance13.11 mi
Time2:35:45
Pace11:53 /mi
📊Positive Split: 12.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:3533:1710:4333:17
10:43
-
10K
6.21 mi12:25:191:06:0110:3732:44
10:32
-0:11
15K
9.32 mi12:57:451:38:2710:3432:26
10:26
-0:06
20K
12.43 mi13:30:502:11:3210:3533:05
10:39
+0:13
Half
13.11 mi13:37:572:18:3910:357:07
10:26
-0:13
25K
15.53 mi14:04:332:45:1510:3826:36
10:58
+0:32
30K
18.64 mi14:40:073:20:4910:4635:34
11:27
+0:29
20M
20.00 mi14:55:553:36:3710:5015:48
11:38
+0:11
21M
21.00 mi15:09:383:50:2010:5813:43
13:43
+2:05
35K
21.75 mi15:18:333:59:1511:008:55
11:55
-1:48
23M
23.00 mi15:34:424:15:2411:0616:09
12:54
+0:59
24M
24.00 mi15:47:024:27:4411:0912:20
12:20
-0:34
40K
24.85 mi15:58:114:38:5311:1311:09
13:02
+0:42
25.2M
25.20 mi16:02:344:43:1611:144:23
12:43
-0:19
Finish
26.22 mi16:13:424:54:2411:1411:08
10:56
-1:47

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

10:26 /mi

Average Pace

11:14 /mi

Slowest Pace

13:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:39

47% of race

Time at Steady Pace

1:38:01

33% of race

Time at Slower Pace

57:44

20% of race

Average Pace: 11:14 /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 mi11:52:3533:1710:4333:17
10:43
#25213
10K
6.21 mi12:25:191:06:0110:3732:44
10:32
#24959
15K
9.32 mi12:57:451:38:2710:3432:26
10:26
#24747
20K
12.43 mi13:30:502:11:3210:3533:05
10:39
#24557
Half
13.11 mi13:37:572:18:3910:357:07
10:26
#24537
25K
15.53 mi14:04:332:45:1510:3826:36
10:58
#24431
30K
18.64 mi14:40:073:20:4910:4635:34
11:27
#24297
20M
20.00 mi14:55:553:36:3710:5015:48
11:38
#24252
21M
21.00 mi15:09:383:50:2010:5813:43
13:43
#24295
35K
21.75 mi15:18:333:59:1511:008:55
11:55
#24320
23M
23.00 mi15:34:424:15:2411:0616:09
12:54
#24393
24M
24.00 mi15:47:024:27:4411:0912:20
12:20
#24430
40K
24.85 mi15:58:114:38:5311:1311:09
13:02
#24482
25.2M
25.20 mi16:02:344:43:1611:144:23
12:43
#24480
Finish
26.22 mi16:13:424:54:2411:1411:08
10:56
#24463
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25213146381463824347(Top 91%)14240(Top 94%)14240(Top 269%)
10K6.21 mi3.10 mi24959+25414527+11114527+11124735(Top 93%)14418(Top 95%)14418(Top 273%)
15K9.32 mi3.11 mi24747+21214420+10714420+10724347(Top 91%)14240(Top 94%)14240(Top 269%)
20K12.43 mi3.11 mi24557+19014325+9514325+9524097(Top 91%)14108(Top 93%)14108(Top 267%)
Half13.11 mi0.68 mi24537+2014316+914316+924070(Top 90%)14101(Top 93%)14101(Top 267%)
25K15.53 mi2.42 mi24431+10614259+5714259+5723924(Top 90%)13990(Top 92%)13990(Top 265%)
30K18.64 mi3.11 mi24297+13414180+7914180+7923788(Top 89%)13876(Top 91%)13876(Top 263%)
20M20.00 mi1.36 mi24252+4514151+2914151+2923715(Top 89%)13784(Top 91%)13784(Top 261%)
21M21.00 mi1.00 mi24295-4314163-1214163-1224793(Top 93%)14272(Top 94%)14272(Top 270%)
35K21.75 mi0.75 mi24320-2514165-214165-224600(Top 92%)14127(Top 93%)14127(Top 267%)
23M23.00 mi1.25 mi24393-7314197-3214197-3224982(Top 94%)14332(Top 94%)14332(Top 271%)
24M24.00 mi1.00 mi24430-3714200-314200-324884(Top 93%)14238(Top 94%)14238(Top 269%)
40K24.85 mi0.85 mi24482-5214222-2214222-2224966(Top 94%)14283(Top 94%)14283(Top 270%)
25.2M25.20 mi0.35 mi24480+214216+614216+623590(Top 89%)13592(Top 90%)13592(Top 257%)
Finish26.22 mi1.02 mi24463+1714202+1414202+1423830(Top 90%)13734(Top 90%)13734(Top 260%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21stories
+97ft-345ft

Overall

24347

Males

14240

M18-39

14240

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

24735

Males

14418

M18-39

14418

10K→15K

6.2 - 9.3 mi

Top 91%
×3stories
+67ft-78ft

Overall

24347

Males

14240

M18-39

14240

15K→20K

9.3 - 12.4 mi

Top 91%
×5stories
+106ft-86ft

Overall

24097

Males

14108

M18-39

14108

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

24070

Males

14101

M18-39

14101

Half→25K

13.1 - 15.5 mi

Top 90%
×4stories
+66ft-88ft

Overall

23924

Males

13990

M18-39

13990

25K→30K

15.5 - 18.6 mi

Top 89%
×9stories
+181ft-148ft

Overall

23788

Males

13876

M18-39

13876

30K→20M

18.6 - 20.0 mi

Top 89%
×5stories
+64ft-50ft

Overall

23715

Males

13784

M18-39

13784

20M→21M

20.0 - 21.0 mi

Top 93%
×8stories
+106ft-24ft

Overall

24793

Males

14272

M18-39

14272

21M→35K

21.0 - 21.8 mi

Top 92%
×7stories
+17ft-86ft

Overall

24600

Males

14127

M18-39

14127

35K→23M

21.8 - 23.0 mi

Top 94%
×5stories
+23ft-63ft

Overall

24982

Males

14332

M18-39

14332

23M→24M

23.0 - 24.0 mi

Top 93%
×6stories
+12ft-82ft

Overall

24884

Males

14238

M18-39

14238

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

24966

Males

14283

M18-39

14283

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

23590

Males

13592

M18-39

13592

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2stories
+22ft-21ft

Overall

23830

Males

13734

M18-39

13734

Passing Analysis

Category:
Athletes Passed
1352
Passed By
602
Net Change
+750
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25213
5K → 10K33682+254#25213#24959
10K → 15K24432+212#24959#24747
15K → 20K21424+190#24747#24557
20K → Half3717+20#24557#24537
Half → 25K14337+106#24537#24431
25K → 30K18652+134#24431#24297
30K → 20M7126+45#24297#24252
20M → 21M2366-43#24252#24295
21M → 35K1540-25#24295#24320
35K → 23M1386-73#24320#24393
23M → 24M1855-37#24393#24430
24M → 40K860-52#24430#24482
40K → 25.2M1210+2#24482#24480
25.2M → Finish3215+17#24480#24463
TOTALS1352602+750
📊

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