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BOSTON MARATHON 2023

David Krupinski

Bib: 31202•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:11
Rank: #22694
Start → 5K
30:11 | 9:43/mi
10K· 6.21 mi
58:29
Rank: #22077 (+617)
5K → 10K
28:18 | 9:07/mi
15K· 9.32 mi
1:26:20
Rank: #21576 (+501)
10K → 15K
27:51 | 8:58/mi
20K· 12.43 mi
1:54:17
Rank: #21173 (+403)
15K → 20K
27:57 | 9:00/mi
Half· 13.11 mi
2:00:25
Rank: #21133 (+40)
20K → Half
6:08 | 8:59/mi
25K· 15.53 mi
2:23:07
Rank: #20976 (+157)
Half → 25K
22:42 | 9:22/mi
30K· 18.64 mi
2:52:21
Rank: #20622 (+354)
25K → 30K
29:14 | 9:25/mi
20M
3:05:12
Rank: #20475 (+147)
30K → 20M
12:51 | 9:27/mi
21M
3:15:05
Rank: #20297 (+178)
20M → 21M
9:53 | 9:53/mi
35K· 21.75 mi
3:22:01
Rank: #20256 (+41)
21M → 35K
6:56 | 9:16/mi
23M
3:33:33
Rank: #20082 (+174)
35K → 23M
11:32 | 9:13/mi
24M
3:42:31
Rank: #19959 (+123)
23M → 24M
8:58 | 8:58/mi
40K· 24.85 mi
3:50:45
Rank: #19918 (+41)
24M → 40K
8:14 | 9:38/mi
25.2M
3:54:11
Rank: #19871 (+47)
40K → 25.2M
3:26 | 9:57/mi
Finish· 26.22 mi
4:03:27
Rank: #19821 (+50)
25.2M → Finish
9:16 | 9:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:25
Pace9:11 /mi
2nd Half
Distance13.11 mi
Time2:03:02
Pace9:23 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:3730:119:4330:11
9:43
-
10K
6.21 mi12:17:5558:299:2528:18
9:07
-0:36
15K
9.32 mi12:45:461:26:209:1627:51
8:58
-0:09
20K
12.43 mi13:13:431:54:179:1227:57
9:00
+0:02
Half
13.11 mi13:19:512:00:259:116:08
8:59
-0:01
25K
15.53 mi13:42:332:23:079:1322:42
9:22
+0:23
30K
18.64 mi14:11:472:52:219:1529:14
9:25
+0:03
20M
20.00 mi14:24:383:05:129:1612:51
9:27
+0:02
21M
21.00 mi14:34:313:15:059:179:53
9:53
+0:26
35K
21.75 mi14:41:273:22:019:176:56
9:16
-0:37
23M
23.00 mi14:52:593:33:339:1711:32
9:13
-0:03
24M
24.00 mi15:01:573:42:319:168:58
8:58
-0:15
40K
24.85 mi15:10:113:50:459:178:14
9:38
+0:40
25.2M
25.20 mi15:13:373:54:119:183:26
9:57
+0:19
Finish
26.22 mi15:22:534:03:279:189:16
9:06
-0:51

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

8:58 /mi

Average Pace

9:18 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:50:08

95% of race

Time at Steady Pace

13:19

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:17 /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 mi11:49:3730:119:4330:11
9:43
#22694
10K
6.21 mi12:17:5558:299:2528:18
9:07
#22077
15K
9.32 mi12:45:461:26:209:1627:51
8:58
#21576
20K
12.43 mi13:13:431:54:179:1227:57
9:00
#21173
Half
13.11 mi13:19:512:00:259:116:08
8:59
#21133
25K
15.53 mi13:42:332:23:079:1322:42
9:22
#20976
30K
18.64 mi14:11:472:52:219:1529:14
9:25
#20622
20M
20.00 mi14:24:383:05:129:1612:51
9:27
#20475
21M
21.00 mi14:34:313:15:059:179:53
9:53
#20297
35K
21.75 mi14:41:273:22:019:176:56
9:16
#20256
23M
23.00 mi14:52:593:33:339:1711:32
9:13
#20082
24M
24.00 mi15:01:573:42:319:168:58
8:58
#19959
40K
24.85 mi15:10:113:50:459:178:14
9:38
#19918
25.2M
25.20 mi15:13:373:54:119:183:26
9:57
#19871
Finish
26.22 mi15:22:534:03:279:189:16
9:06
#19821
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi22694134401344020332(Top 76%)12448(Top 82%)12448(Top 875%)
10K6.21 mi3.10 mi22077+61713162+27813162+27821306(Top 80%)12839(Top 85%)12839(Top 903%)
15K9.32 mi3.11 mi21576+50112952+21012952+21020332(Top 76%)12448(Top 82%)12448(Top 875%)
20K12.43 mi3.11 mi21173+40312791+16112791+16119679(Top 74%)12173(Top 80%)12173(Top 856%)
Half13.11 mi0.68 mi21133+4012773+1812773+1820372(Top 77%)12458(Top 82%)12458(Top 876%)
25K15.53 mi2.42 mi20976+15712703+7012703+7020382(Top 77%)12443(Top 82%)12443(Top 875%)
30K18.64 mi3.11 mi20622+35412533+17012533+17019079(Top 72%)11823(Top 78%)11823(Top 831%)
20M20.00 mi1.36 mi20475+14712448+8512448+8518688(Top 70%)11543(Top 76%)11543(Top 812%)
21M21.00 mi1.00 mi20297+17812355+9312355+9317578(Top 66%)11052(Top 73%)11052(Top 777%)
35K21.75 mi0.75 mi20256+4112327+2812327+2819003(Top 71%)11597(Top 76%)11597(Top 816%)
23M23.00 mi1.25 mi20082+17412244+8312244+8317114(Top 64%)10749(Top 71%)10749(Top 756%)
24M24.00 mi1.00 mi19959+12312188+5612188+5617070(Top 64%)10660(Top 70%)10660(Top 750%)
40K24.85 mi0.85 mi19918+4112160+2812160+2818795(Top 71%)11397(Top 75%)11397(Top 801%)
25.2M25.20 mi0.35 mi19871+4712143+1712143+1717173(Top 65%)10642(Top 70%)10642(Top 748%)
Finish26.22 mi1.02 mi19821+5012116+2712116+2718430(Top 69%)11281(Top 74%)11281(Top 793%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21stories
+97ft-345ft

Overall

20332

Males

12448

M55-59

12448

5K→10K

3.1 - 6.2 mi

Top 80%
×5stories
+79ft-138ft

Overall

21306

Males

12839

M55-59

12839

10K→15K

6.2 - 9.3 mi

Top 76%
×3stories
+67ft-78ft

Overall

20332

Males

12448

M55-59

12448

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

19679

Males

12173

M55-59

12173

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

20372

Males

12458

M55-59

12458

Half→25K

13.1 - 15.5 mi

Top 77%
×4stories
+66ft-88ft

Overall

20382

Males

12443

M55-59

12443

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

19079

Males

11823

M55-59

11823

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

18688

Males

11543

M55-59

11543

20M→21M

20.0 - 21.0 mi

Top 66%
×8stories
+106ft-24ft

Overall

17578

Males

11052

M55-59

11052

21M→35K

21.0 - 21.8 mi

Top 71%
×7stories
+17ft-86ft

Overall

19003

Males

11597

M55-59

11597

35K→23M

21.8 - 23.0 mi

Top 64%
×5stories
+23ft-63ft

Overall

17114

Males

10749

M55-59

10749

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

17070

Males

10660

M55-59

10660

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

18795

Males

11397

M55-59

11397

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17173

Males

10642

M55-59

10642

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2stories
+22ft-21ft

Overall

18430

Males

11281

M55-59

11281

Passing Analysis

Category:
Athletes Passed
3133
Passed By
260
Net Change
+2873
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22694
5K → 10K66952+617#22694#22077
10K → 15K52019+501#22077#21576
15K → 20K42421+403#21576#21173
20K → Half499+40#21173#21133
Half → 25K19336+157#21133#20976
25K → 30K37016+354#20976#20622
30K → 20M16114+147#20622#20475
20M → 21M19113+178#20475#20297
21M → 35K509+41#20297#20256
35K → 23M18814+174#20256#20082
23M → 24M1263+123#20082#19959
24M → 40K6827+41#19959#19918
40K → 25.2M558+47#19918#19871
25.2M → Finish6919+50#19871#19821
TOTALS3133260+2873
📊

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