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BOSTON MARATHON 2023

Stan Kowalski

Bib: 21453•M

PA

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

Start
0:00:00
Race begins
5K· 3.11 mi
28:34
Rank: #21195
Start → 5K
28:34 | 9:12/mi
10K· 6.21 mi
57:21
Rank: #21495 (-300)
5K → 10K
28:47 | 9:16/mi
15K· 9.32 mi
1:25:09
Rank: #21159 (+336)
10K → 15K
27:48 | 8:57/mi
20K· 12.43 mi
1:53:25
Rank: #20898 (+261)
15K → 20K
28:16 | 9:06/mi
Half· 13.11 mi
1:59:33
Rank: #20860 (+38)
20K → Half
6:08 | 8:59/mi
25K· 15.53 mi
2:21:55
Rank: #20703 (+157)
Half → 25K
22:22 | 9:13/mi
30K· 18.64 mi
2:52:09
Rank: #20586 (+117)
25K → 30K
30:14 | 9:44/mi
20M
3:05:40
Rank: #20559 (+27)
30K → 20M
13:31 | 9:57/mi
21M
3:16:17
Rank: #20496 (+63)
20M → 21M
10:37 | 10:37/mi
35K· 21.75 mi
3:23:21
Rank: #20453 (+43)
21M → 35K
7:04 | 9:27/mi
23M
3:35:37
Rank: #20380 (+73)
35K → 23M
12:16 | 9:48/mi
24M
3:45:09
Rank: #20339 (+41)
23M → 24M
9:32 | 9:32/mi
40K· 24.85 mi
3:53:59
Rank: #20346 (-7)
24M → 40K
8:50 | 10:20/mi
25.2M
3:58:08
Rank: #20385 (-39)
40K → 25.2M
4:09 | 12:02/mi
Finish· 26.22 mi
4:07:35
Rank: #20344 (+41)
25.2M → Finish
9:27 | 9:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:33
Pace9:07 /mi
2nd Half
Distance13.11 mi
Time2:08:02
Pace9:46 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:4428:349:1228:34
9:12
-
10K
6.21 mi11:51:3157:219:1428:47
9:16
+0:04
15K
9.32 mi12:19:191:25:099:0827:48
8:57
-0:19
20K
12.43 mi12:47:351:53:259:0828:16
9:06
+0:09
Half
13.11 mi12:53:431:59:339:076:08
8:59
-0:07
25K
15.53 mi13:16:052:21:559:0822:22
9:13
+0:14
30K
18.64 mi13:46:192:52:099:1430:14
9:44
+0:31
20M
20.00 mi13:59:503:05:409:1713:31
9:57
+0:13
21M
21.00 mi14:10:273:16:179:2110:37
10:37
+0:40
35K
21.75 mi14:17:313:23:219:217:04
9:27
-1:10
23M
23.00 mi14:29:473:35:379:2212:16
9:48
+0:21
24M
24.00 mi14:39:193:45:099:239:32
9:32
-0:16
40K
24.85 mi14:48:093:53:599:258:50
10:20
+0:48
25.2M
25.20 mi14:52:183:58:089:274:09
12:02
+1:42
Finish
26.22 mi15:01:454:07:359:279:27
9:16
-2:46

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

8:57 /mi

Average Pace

9:27 /mi

Slowest Pace

12:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

33:56

14% of race

Time at Steady Pace

2:56:32

71% of race

Time at Slower Pace

37:07

15% of race

Average Pace: 9:27 /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 mi11:22:4428:349:1228:34
9:12
#21195
10K
6.21 mi11:51:3157:219:1428:47
9:16
#21495
15K
9.32 mi12:19:191:25:099:0827:48
8:57
#21159
20K
12.43 mi12:47:351:53:259:0828:16
9:06
#20898
Half
13.11 mi12:53:431:59:339:076:08
8:59
#20860
25K
15.53 mi13:16:052:21:559:0822:22
9:13
#20703
30K
18.64 mi13:46:192:52:099:1430:14
9:44
#20586
20M
20.00 mi13:59:503:05:409:1713:31
9:57
#20559
21M
21.00 mi14:10:273:16:179:2110:37
10:37
#20496
35K
21.75 mi14:17:313:23:219:217:04
9:27
#20453
23M
23.00 mi14:29:473:35:379:2212:16
9:48
#20380
24M
24.00 mi14:39:193:45:099:239:32
9:32
#20339
40K
24.85 mi14:48:093:53:599:258:50
10:20
#20346
25.2M
25.20 mi14:52:183:58:089:274:09
12:02
#20385
Finish
26.22 mi15:01:454:07:359:279:27
9:16
#20344
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi21195127041270420249(Top 76%)12418(Top 82%)12418(Top 1119%)
10K6.21 mi3.10 mi21495-30012895-19112895-19121810(Top 82%)13067(Top 86%)13067(Top 1177%)
15K9.32 mi3.11 mi21159+33612774+12112774+12120249(Top 76%)12418(Top 82%)12418(Top 1119%)
20K12.43 mi3.11 mi20898+26112661+11312661+11320131(Top 76%)12366(Top 81%)12366(Top 1114%)
Half13.11 mi0.68 mi20860+3812648+1312648+1320377(Top 77%)12463(Top 82%)12463(Top 1123%)
25K15.53 mi2.42 mi20703+15712585+6312585+6319934(Top 75%)12262(Top 81%)12262(Top 1105%)
30K18.64 mi3.11 mi20586+11712510+7512510+7520229(Top 76%)12309(Top 81%)12309(Top 1109%)
20M20.00 mi1.36 mi20559+2712484+2612484+2620326(Top 76%)12263(Top 81%)12263(Top 1105%)
21M21.00 mi1.00 mi20496+6312445+3912445+3919921(Top 75%)12015(Top 79%)12015(Top 1082%)
35K21.75 mi0.75 mi20453+4312417+2812417+2819691(Top 74%)11921(Top 79%)11921(Top 1074%)
23M23.00 mi1.25 mi20380+7312375+4212375+4219421(Top 73%)11761(Top 77%)11761(Top 1060%)
24M24.00 mi1.00 mi20339+4112352+2312352+2319326(Top 73%)11681(Top 77%)11681(Top 1052%)
40K24.85 mi0.85 mi20346-712342+1012342+1020807(Top 78%)12290(Top 81%)12290(Top 1107%)
25.2M25.20 mi0.35 mi20385-3912354-1212354-1222532(Top 85%)13087(Top 86%)13087(Top 1179%)
Finish26.22 mi1.02 mi20344+4112328+2612328+2619251(Top 72%)11648(Top 77%)11648(Top 1049%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21stories
+97ft-345ft

Overall

20249

Males

12418

M60-64

12418

5K→10K

3.1 - 6.2 mi

Top 82%
×5stories
+79ft-138ft

Overall

21810

Males

13067

M60-64

13067

10K→15K

6.2 - 9.3 mi

Top 76%
×3stories
+67ft-78ft

Overall

20249

Males

12418

M60-64

12418

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

20131

Males

12366

M60-64

12366

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

20377

Males

12463

M60-64

12463

Half→25K

13.1 - 15.5 mi

Top 75%
×4stories
+66ft-88ft

Overall

19934

Males

12262

M60-64

12262

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

20229

Males

12309

M60-64

12309

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

20326

Males

12263

M60-64

12263

20M→21M

20.0 - 21.0 mi

Top 75%
×8stories
+106ft-24ft

Overall

19921

Males

12015

M60-64

12015

21M→35K

21.0 - 21.8 mi

Top 74%
×7stories
+17ft-86ft

Overall

19691

Males

11921

M60-64

11921

35K→23M

21.8 - 23.0 mi

Top 73%
×5stories
+23ft-63ft

Overall

19421

Males

11761

M60-64

11761

23M→24M

23.0 - 24.0 mi

Top 73%
×6stories
+12ft-82ft

Overall

19326

Males

11681

M60-64

11681

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20807

Males

12290

M60-64

12290

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22532

Males

13087

M60-64

13087

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

19251

Males

11648

M60-64

11648

Passing Analysis

Category:
Athletes Passed
1797
Passed By
946
Net Change
+851
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21195
5K → 10K143443-300#21195#21495
10K → 15K38044+336#21495#21159
15K → 20K30241+261#21159#20898
20K → Half5315+38#20898#20860
Half → 25K18932+157#20860#20703
25K → 30K19982+117#20703#20586
30K → 20M8457+27#20586#20559
20M → 21M9936+63#20559#20496
21M → 35K6522+43#20496#20453
35K → 23M10734+73#20453#20380
23M → 24M5817+41#20380#20339
24M → 40K4148-7#20339#20346
40K → 25.2M1150-39#20346#20385
25.2M → Finish6625+41#20385#20344
TOTALS1797946+851
📊

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