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BOSTON MARATHON 2023

Scott Kasten

Bib: 9431•M

WI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 29%
Gender (Male)
#0 / 15176
Top 44%
Masters (Masters Men)
#0 / 9891
Top 31%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:14
Rank: #12317
Start → 5K
24:14 | 7:48/mi
10K· 6.21 mi
47:49
Rank: #11747 (+570)
5K → 10K
23:35 | 7:35/mi
15K· 9.32 mi
1:11:03
Rank: #11121 (+626)
10K → 15K
23:14 | 7:29/mi
20K· 12.43 mi
1:34:05
Rank: #10433 (+688)
15K → 20K
23:02 | 7:25/mi
Half· 13.11 mi
1:39:10
Rank: #10402 (+31)
20K → Half
5:05 | 7:27/mi
25K· 15.53 mi
1:57:07
Rank: #9963 (+439)
Half → 25K
17:57 | 7:24/mi
30K· 18.64 mi
2:20:20
Rank: #9378 (+585)
25K → 30K
23:13 | 7:28/mi
20M
2:30:28
Rank: #9128 (+250)
30K → 20M
10:08 | 7:27/mi
21M
2:38:09
Rank: #8894 (+234)
20M → 21M
7:41 | 7:41/mi
35K· 21.75 mi
2:43:29
Rank: #8766 (+128)
21M → 35K
5:20 | 7:08/mi
23M
2:52:40
Rank: #8526 (+240)
35K → 23M
9:11 | 7:20/mi
24M
2:59:44
Rank: #8322 (+204)
23M → 24M
7:04 | 7:04/mi
40K· 24.85 mi
3:05:52
Rank: #8148 (+174)
24M → 40K
6:08 | 7:10/mi
25.2M
3:08:29
Rank: #8050 (+98)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
3:15:25
Rank: #7851 (+199)
25.2M → Finish
6:56 | 6:48/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:39:10
Pace7:34 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:36:15
Pace7:21 /mi
📊Negative Split: 2.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0224:147:4824:14
7:48
-
10K
6.21 mi11:14:3747:497:4223:35
7:35
-0:13
15K
9.32 mi11:37:511:11:037:3723:14
7:29
-0:06
20K
12.43 mi12:00:531:34:057:3423:02
7:25
-0:04
Half
13.11 mi12:05:581:39:107:345:05
7:27
+0:02
25K
15.53 mi12:23:551:57:077:3217:57
7:24
-0:03
30K
18.64 mi12:47:082:20:207:3223:13
7:28
+0:04
20M
20.00 mi12:57:162:30:287:3110:08
7:27
-0:01
21M
21.00 mi13:04:572:38:097:327:41
7:41
+0:14
35K
21.75 mi13:10:172:43:297:315:20
7:08
-0:33
23M
23.00 mi13:19:282:52:407:309:11
7:20
+0:12
24M
24.00 mi13:26:322:59:447:297:04
7:04
-0:16
40K
24.85 mi13:32:403:05:527:296:08
7:10
+0:06
25.2M
25.20 mi13:35:173:08:297:292:37
7:35
+0:25
Finish
26.22 mi13:42:133:15:257:286:56
6:48
-0:47

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

6:48 /mi

Average Pace

7:28 /mi

Slowest Pace

7:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:04

58% of race

Time at Steady Pace

1:21:21

42% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:27 /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 mi10:51:0224:147:4824:14
7:48
#12317
10K
6.21 mi11:14:3747:497:4223:35
7:35
#11747
15K
9.32 mi11:37:511:11:037:3723:14
7:29
#11121
20K
12.43 mi12:00:531:34:057:3423:02
7:25
#10433
Half
13.11 mi12:05:581:39:107:345:05
7:27
#10402
25K
15.53 mi12:23:551:57:077:3217:57
7:24
#9963
30K
18.64 mi12:47:082:20:207:3223:13
7:28
#9378
20M
20.00 mi12:57:162:30:287:3110:08
7:27
#9128
21M
21.00 mi13:04:572:38:097:327:41
7:41
#8894
35K
21.75 mi13:10:172:43:297:315:20
7:08
#8766
23M
23.00 mi13:19:282:52:407:309:11
7:20
#8526
24M
24.00 mi13:26:322:59:447:297:04
7:04
#8322
40K
24.85 mi13:32:403:05:527:296:08
7:10
#8148
25.2M
25.20 mi13:35:173:08:297:292:37
7:35
#8050
Finish
26.22 mi13:42:133:15:257:286:56
6:48
#7851
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi12317924592459978(Top 37%)8130(Top 54%)8130(Top 363%)
10K6.21 mi3.10 mi11747+5708997+2488997+24811219(Top 42%)8757(Top 58%)8757(Top 391%)
15K9.32 mi3.11 mi11121+6268704+2938704+2939978(Top 37%)8130(Top 54%)8130(Top 363%)
20K12.43 mi3.11 mi10433+6888382+3228382+3228598(Top 32%)7252(Top 48%)7252(Top 324%)
Half13.11 mi0.68 mi10402+318357+258357+259732(Top 37%)7925(Top 52%)7925(Top 354%)
25K15.53 mi2.42 mi9963+4398113+2448113+2448040(Top 30%)6825(Top 45%)6825(Top 305%)
30K18.64 mi3.11 mi9378+5857723+3907723+3907042(Top 26%)6100(Top 40%)6100(Top 272%)
20M20.00 mi1.36 mi9128+2507560+1637560+1636510(Top 24%)5660(Top 37%)5660(Top 253%)
21M21.00 mi1.00 mi8894+2347401+1597401+1595541(Top 21%)4867(Top 32%)4867(Top 217%)
35K21.75 mi0.75 mi8766+1287314+877314+876101(Top 23%)5309(Top 35%)5309(Top 237%)
23M23.00 mi1.25 mi8526+2407133+1817133+1815506(Top 21%)4843(Top 32%)4843(Top 216%)
24M24.00 mi1.00 mi8322+2046989+1446989+1445033(Top 19%)4451(Top 29%)4451(Top 199%)
40K24.85 mi0.85 mi8148+1746856+1336856+1334763(Top 18%)4190(Top 28%)4190(Top 187%)
25.2M25.20 mi0.35 mi8050+986787+696787+694358(Top 16%)3828(Top 25%)3828(Top 171%)
Finish26.22 mi1.02 mi7851+1996643+1446643+1444107(Top 15%)3628(Top 24%)3628(Top 162%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

9978

Males

8130

M40-44

8130

5K→10K

3.1 - 6.2 mi

Top 42%
×5stories
+79ft-138ft

Overall

11219

Males

8757

M40-44

8757

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

9978

Males

8130

M40-44

8130

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

8598

Males

7252

M40-44

7252

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

9732

Males

7925

M40-44

7925

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

8040

Males

6825

M40-44

6825

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

7042

Males

6100

M40-44

6100

30K→20M

18.6 - 20.0 mi

Top 24%
×5stories
+64ft-50ft

Overall

6510

Males

5660

M40-44

5660

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

5541

Males

4867

M40-44

4867

21M→35K

21.0 - 21.8 mi

Top 23%
×7stories
+17ft-86ft

Overall

6101

Males

5309

M40-44

5309

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

5506

Males

4843

M40-44

4843

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

5033

Males

4451

M40-44

4451

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4763

Males

4190

M40-44

4190

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4358

Males

3828

M40-44

3828

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

4107

Males

3628

M40-44

3628

Passing Analysis

Category:
Athletes Passed
4648*
Passed By
182
Net Change
+4466
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12317
5K → 10K683113+570#12317#11747
10K → 15K64721+626#11747#11121
15K → 20K6935+688#11121#10433
20K → Half4716+31#10433#10402
Half → 25K444*5+439#10402#9963
25K → 30K588*3+585#9963#9378
30K → 20M2544+250#9378#9128
20M → 21M2351+234#9128#8894
21M → 35K1335+128#8894#8766
35K → 23M2433+240#8766#8526
23M → 24M2051+204#8526#8322
24M → 40K1762+174#8322#8148
40K → 25.2M980+98#8148#8050
25.2M → Finish2023+199#8050#7851
TOTALS4648*182+4466

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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