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BOSTON MARATHON 2023

Peter Casey-Caplan

Bib: 25403•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 21%
Gender (Male)
#0 / 15176
Top 33%
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
21:09
Rank: #4760
Start → 5K
6:48/mi
21:09 split
10K· 6.21 mi
41:52
Rank: #4368 (+392)
5K → 10K
6:40/mi
20:43 split
15K· 9.32 mi
1:02:56
Rank: #4535 (-167)
10K → 15K
6:47/mi
21:04 split
20K· 12.43 mi
1:23:50
Rank: #4315 (+220)
15K → 20K
6:44/mi
20:54 split
Half· 13.11 mi
1:28:20
Rank: #4254 (+61)
20K → Half
6:36/mi
4:30 split
25K· 15.53 mi
1:44:50
Rank: #4201 (+53)
Half → 25K
6:48/mi
16:30 split
30K· 18.64 mi
2:06:44
Rank: #4309 (-108)
25K → 30K
7:03/mi
21:54 split
20M
2:16:27
Rank: #4348 (-39)
30K → 20M
7:09/mi
9:43 split
21M
2:24:30
Rank: #4597 (-249)
20M → 21M
8:03/mi
8:03 split
35K· 21.75 mi
2:29:55
Rank: #4674 (-77)
21M → 35K
7:14/mi
5:25 split
23M
2:40:38
Rank: #5134 (-460)
35K → 23M
8:34/mi
10:43 split
24M
2:48:29
Rank: #5270 (-136)
23M → 24M
7:51/mi
7:51 split
40K· 24.85 mi
2:55:26
Rank: #5407 (-137)
24M → 40K
8:08/mi
6:57 split
25.2M
2:58:32
Rank: #5464 (-57)
40K → 25.2M
8:59/mi
3:06 split
Finish· 26.22 mi
3:06:32
Rank: #5592 (-128)
25.2M → Finish
7:51/mi
8:00 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:20
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:38:12
Pace7:29 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:36:4021:096:4821:09
6:48
-
10K
6.21 mi11:57:2341:526:4420:43
6:40
-0:08
15K
9.32 mi12:18:271:02:566:4521:04
6:47
+0:07
20K
12.43 mi12:39:211:23:506:4520:54
6:44
-0:03
Half
13.11 mi12:43:511:28:206:444:30
6:36
-0:08
25K
15.53 mi13:00:211:44:506:4516:30
6:48
+0:12
30K
18.64 mi13:22:152:06:446:4821:54
7:03
+0:15
20M
20.00 mi13:31:582:16:276:499:43
7:09
+0:06
21M
21.00 mi13:40:012:24:306:538:03
8:03
+0:54
35K
21.75 mi13:45:262:29:556:545:25
7:14
-0:49
23M
23.00 mi13:56:092:40:386:5910:43
8:34
+1:20
24M
24.00 mi14:04:002:48:297:017:51
7:51
-0:43
40K
24.85 mi14:10:572:55:267:036:57
8:08
+0:17
25.2M
25.20 mi14:14:032:58:327:053:06
8:59
+0:51
Finish
26.22 mi14:22:033:06:327:078:00
7:51
-1:08

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

6:36 /mi

Average Pace

7:07 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

46:07

25% of race

Time at Steady Pace

1:35:45

51% of race

Time at Slower Pace

44:40

24% of race

Average Pace: 7:07 /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 mi11:36:4021:096:4821:09
6:48
#4760
10K
6.21 mi11:57:2341:526:4420:43
6:40
#4368
15K
9.32 mi12:18:271:02:566:4521:04
6:47
#4535
20K
12.43 mi12:39:211:23:506:4520:54
6:44
#4315
Half
13.11 mi12:43:511:28:206:444:30
6:36
#4254
25K
15.53 mi13:00:211:44:506:4516:30
6:48
#4201
30K
18.64 mi13:22:152:06:446:4821:54
7:03
#4309
20M
20.00 mi13:31:582:16:276:499:43
7:09
#4348
21M
21.00 mi13:40:012:24:306:538:03
8:03
#4597
35K
21.75 mi13:45:262:29:556:545:25
7:14
#4674
23M
23.00 mi13:56:092:40:386:5910:43
8:34
#5134
24M
24.00 mi14:04:002:48:297:017:51
7:51
#5270
40K
24.85 mi14:10:572:55:267:036:57
8:08
#5407
25.2M
25.20 mi14:14:032:58:327:053:06
8:59
#5464
Finish
26.22 mi14:22:033:06:327:078:00
7:51
#5592
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4760443044304942(Top 19%)4593(Top 30%)4593(Top 87%)
10K6.21 mi3.10 mi4368+3924092+3384092+3384052(Top 15%)3811(Top 25%)3811(Top 72%)
15K9.32 mi3.11 mi4535-1674237-1454237-1454942(Top 19%)4593(Top 30%)4593(Top 87%)
20K12.43 mi3.11 mi4315+2204043+1944043+1943786(Top 14%)3574(Top 24%)3574(Top 68%)
Half13.11 mi0.68 mi4254+613985+583985+583459(Top 13%)3290(Top 22%)3290(Top 62%)
25K15.53 mi2.42 mi4201+533939+463939+464219(Top 16%)3950(Top 26%)3950(Top 75%)
30K18.64 mi3.11 mi4309-1084038-994038-994662(Top 18%)4307(Top 28%)4307(Top 81%)
20M20.00 mi1.36 mi4348-394066-284066-284876(Top 18%)4441(Top 29%)4441(Top 84%)
21M21.00 mi1.00 mi4597-2494284-2184284-2187618(Top 29%)6244(Top 41%)6244(Top 118%)
35K21.75 mi0.75 mi4674-774351-674351-676725(Top 25%)5711(Top 38%)5711(Top 108%)
23M23.00 mi1.25 mi5134-4604722-3714722-37113548(Top 51%)9156(Top 60%)9156(Top 173%)
24M24.00 mi1.00 mi5270-1364837-1154837-11510094(Top 38%)7428(Top 49%)7428(Top 141%)
40K24.85 mi0.85 mi5407-1374936-994936-9910842(Top 41%)7749(Top 51%)7749(Top 147%)
25.2M25.20 mi0.35 mi5464-574981-454981-4512324(Top 46%)8387(Top 55%)8387(Top 159%)
Finish26.22 mi1.02 mi5592-1285067-865067-8611006(Top 41%)7782(Top 51%)7782(Top 147%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21story building
+97ft-345ft

Overall

4942

Males

4593

M18-39

4593

5K→10K

3.1 - 6.2 mi

Top 15%
×5story building
+79ft-138ft

Overall

4052

Males

3811

M18-39

3811

10K→15K

6.2 - 9.3 mi

Top 19%
×3story building
+67ft-78ft

Overall

4942

Males

4593

M18-39

4593

15K→20K

9.3 - 12.4 mi

Top 14%
×5story building
+106ft-86ft

Overall

3786

Males

3574

M18-39

3574

20K→Half

12.4 - 13.1 mi

Top 13%
×2story building
+19ft-37ft

Overall

3459

Males

3290

M18-39

3290

Half→25K

13.1 - 15.5 mi

Top 16%
×4story building
+66ft-88ft

Overall

4219

Males

3950

M18-39

3950

25K→30K

15.5 - 18.6 mi

Top 18%
×9story building
+181ft-148ft

Overall

4662

Males

4307

M18-39

4307

30K→20M

18.6 - 20.0 mi

Top 18%
×5story building
+64ft-50ft

Overall

4876

Males

4441

M18-39

4441

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7618

Males

6244

M18-39

6244

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

6725

Males

5711

M18-39

5711

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

13548

Males

9156

M18-39

9156

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

10094

Males

7428

M18-39

7428

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10842

Males

7749

M18-39

7749

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12324

Males

8387

M18-39

8387

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2story building
+22ft-21ft

Overall

11006

Males

7782

M18-39

7782

Passing Analysis

Category:
Athletes Passed
1201
Passed By
2033
Net Change
-832
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4760
5K → 10K45866+392#4760#4368
10K → 15K72239-167#4368#4535
15K → 20K23919+220#4535#4315
20K → Half621+61#4315#4254
Half → 25K11158+53#4254#4201
25K → 30K91199-108#4201#4309
30K → 20M4685-39#4309#4348
20M → 21M20269-249#4348#4597
21M → 35K25102-77#4597#4674
35K → 23M9469-460#4674#5134
23M → 24M19155-136#5134#5270
24M → 40K19156-137#5270#5407
40K → 25.2M1168-57#5407#5464
25.2M → Finish19147-128#5464#5592
TOTALS12012033-832
📊

Passing Visuals

Category:
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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