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BOSTON MARATHON 2023

Al Claussen

Bib: 9622•M

VT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 22%
Gender (Male)
#0 / 15176
Top 35%
Masters (Masters Men)
#0 / 9891
Top 20%
Division (M50-54)
#0 / 2052
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:44
Rank: #3438
Start → 5K
20:44 | 6:40/mi
10K· 6.21 mi
41:39
Rank: #4016 (-578)
5K → 10K
20:55 | 6:44/mi
15K· 9.32 mi
1:02:36
Rank: #4178 (-162)
10K → 15K
20:57 | 6:45/mi
20K· 12.43 mi
1:23:48
Rank: #4291 (-113)
15K → 20K
21:12 | 6:49/mi
Half· 13.11 mi
1:28:26
Rank: #4332 (-41)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:45:18
Rank: #4493 (-161)
Half → 25K
16:52 | 6:57/mi
30K· 18.64 mi
2:08:15
Rank: #5004 (-511)
25K → 30K
22:57 | 7:23/mi
20M
2:18:44
Rank: #5268 (-264)
30K → 20M
10:29 | 7:43/mi
21M
2:27:16
Rank: #5498 (-230)
20M → 21M
8:32 | 8:32/mi
35K· 21.75 mi
2:33:08
Rank: #5638 (-140)
21M → 35K
5:52 | 7:51/mi
23M
2:42:52
Rank: #5702 (-64)
35K → 23M
9:44 | 7:46/mi
24M
2:50:26
Rank: #5747 (-45)
23M → 24M
7:34 | 7:34/mi
40K· 24.85 mi
2:57:05
Rank: #5786 (-39)
24M → 40K
6:39 | 7:47/mi
25.2M
3:00:01
Rank: #5813 (-27)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:07:32
Rank: #5829 (-16)
25.2M → Finish
7:31 | 7:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:26
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:39:06
Pace7:34 /mi
📊Positive Split: 12.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:3820:446:4020:44
6:40
-
10K
6.21 mi11:07:3341:396:4220:55
6:44
+0:04
15K
9.32 mi11:28:301:02:366:4320:57
6:45
+0:01
20K
12.43 mi11:49:421:23:486:4521:12
6:49
+0:04
Half
13.11 mi11:54:201:28:266:454:38
6:47
-0:02
25K
15.53 mi12:11:121:45:186:4716:52
6:57
+0:10
30K
18.64 mi12:34:092:08:156:5322:57
7:23
+0:26
20M
20.00 mi12:44:382:18:446:5610:29
7:43
+0:20
21M
21.00 mi12:53:102:27:167:018:32
8:32
+0:49
35K
21.75 mi12:59:022:33:087:025:52
7:51
-0:41
23M
23.00 mi13:08:462:42:527:059:44
7:46
-0:05
24M
24.00 mi13:16:202:50:267:067:34
7:34
-0:12
40K
24.85 mi13:22:592:57:057:076:39
7:47
+0:13
25.2M
25.20 mi13:25:553:00:017:092:56
8:30
+0:43
Finish
26.22 mi13:33:263:07:327:097:31
7:23
-1:07

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

6:40 /mi

Average Pace

7:09 /mi

Slowest Pace

8:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:18

56% of race

Time at Steady Pace

38:02

20% of race

Time at Slower Pace

44:12

24% of race

Average Pace: 7:09 /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 mi10:46:3820:446:4020:44
6:40
#3438
10K
6.21 mi11:07:3341:396:4220:55
6:44
#4016
15K
9.32 mi11:28:301:02:366:4320:57
6:45
#4178
20K
12.43 mi11:49:421:23:486:4521:12
6:49
#4291
Half
13.11 mi11:54:201:28:266:454:38
6:47
#4332
25K
15.53 mi12:11:121:45:186:4716:52
6:57
#4493
30K
18.64 mi12:34:092:08:156:5322:57
7:23
#5004
20M
20.00 mi12:44:382:18:446:5610:29
7:43
#5268
21M
21.00 mi12:53:102:27:167:018:32
8:32
#5498
35K
21.75 mi12:59:022:33:087:025:52
7:51
#5638
23M
23.00 mi13:08:462:42:527:059:44
7:46
#5702
24M
24.00 mi13:16:202:50:267:067:34
7:34
#5747
40K
24.85 mi13:22:592:57:057:076:39
7:47
#5786
25.2M
25.20 mi13:25:553:00:017:092:56
8:30
#5813
Finish
26.22 mi13:33:263:07:327:097:31
7:23
#5829
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi3438324132414555(Top 17%)4254(Top 28%)4254(Top 207%)
10K6.21 mi3.10 mi4016-5783777-5363777-5364665(Top 18%)4349(Top 29%)4349(Top 212%)
15K9.32 mi3.11 mi4178-1623922-1453922-1454555(Top 17%)4254(Top 28%)4254(Top 207%)
20K12.43 mi3.11 mi4291-1134021-994021-994670(Top 18%)4348(Top 29%)4348(Top 212%)
Half13.11 mi0.68 mi4332-414056-354056-355216(Top 20%)4826(Top 32%)4826(Top 235%)
25K15.53 mi2.42 mi4493-1614202-1464202-1465333(Top 20%)4915(Top 32%)4915(Top 240%)
30K18.64 mi3.11 mi5004-5114643-4414643-4416521(Top 24%)5744(Top 38%)5744(Top 280%)
20M20.00 mi1.36 mi5268-2644864-2214864-2218257(Top 31%)6742(Top 44%)6742(Top 329%)
21M21.00 mi1.00 mi5498-2305049-1855049-18510636(Top 40%)7916(Top 52%)7916(Top 386%)
35K21.75 mi0.75 mi5638-1405166-1175166-11710891(Top 41%)8040(Top 53%)8040(Top 392%)
23M23.00 mi1.25 mi5702-645192-265192-268193(Top 31%)6511(Top 43%)6511(Top 317%)
24M24.00 mi1.00 mi5747-455217-255217-258116(Top 30%)6372(Top 42%)6372(Top 311%)
40K24.85 mi0.85 mi5786-395235-185235-188470(Top 32%)6522(Top 43%)6522(Top 318%)
25.2M25.20 mi0.35 mi5813-275251-165251-169430(Top 35%)6956(Top 46%)6956(Top 339%)
Finish26.22 mi1.02 mi5829-165249+25249+27587(Top 28%)5916(Top 39%)5916(Top 288%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4555

Males

4254

M50-54

4254

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

4665

Males

4349

M50-54

4349

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4555

Males

4254

M50-54

4254

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4670

Males

4348

M50-54

4348

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5216

Males

4826

M50-54

4826

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5333

Males

4915

M50-54

4915

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6521

Males

5744

M50-54

5744

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8257

Males

6742

M50-54

6742

20M→21M

20.0 - 21.0 mi

Top 40%
×8stories
+106ft-24ft

Overall

10636

Males

7916

M50-54

7916

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

10891

Males

8040

M50-54

8040

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

8193

Males

6511

M50-54

6511

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

8116

Males

6372

M50-54

6372

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8470

Males

6522

M50-54

6522

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9430

Males

6956

M50-54

6956

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7587

Males

5916

M50-54

5916

Passing Analysis

Category:
Athletes Passed
495
Passed By
2886
Net Change
-2391
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3438
5K → 10K49627-578#3438#4016
10K → 15K67229-162#4016#4178
15K → 20K56169-113#4178#4291
20K → Half950-41#4291#4332
Half → 25K50211-161#4332#4493
25K → 30K37548-511#4493#5004
30K → 20M18282-264#5004#5268
20M → 21M15245-230#5268#5498
21M → 35K9149-140#5498#5638
35K → 23M56120-64#5638#5702
23M → 24M3277-45#5702#5747
24M → 40K3271-39#5747#5786
40K → 25.2M1441-27#5786#5813
25.2M → Finish5167-16#5813#5829
TOTALS4952886-2391
📊

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