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BOSTON MARATHON 2023

William Calabro

Bib: 32076•M

NH

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
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
31:35
Rank: #23849
Start → 5K
31:35 | 10:10/mi
10K· 6.21 mi
1:00:02
Rank: #22781 (+1068)
5K → 10K
28:27 | 9:09/mi
15K· 9.32 mi
1:29:43
Rank: #22656 (+125)
10K → 15K
29:41 | 9:33/mi
20K· 12.43 mi
2:01:33
Rank: #22877 (-221)
15K → 20K
31:50 | 10:15/mi
Half· 13.11 mi
2:07:45
Rank: #22787 (+90)
20K → Half
6:12 | 9:05/mi
25K· 15.53 mi
2:30:30
Rank: #22441 (+346)
Half → 25K
22:45 | 9:23/mi
30K· 18.64 mi
3:02:31
Rank: #22321 (+120)
25K → 30K
32:01 | 10:18/mi
20M
3:16:03
Rank: #22167 (+154)
30K → 20M
13:32 | 9:58/mi
21M
3:26:27
Rank: #22016 (+151)
20M → 21M
10:24 | 10:24/mi
35K· 21.75 mi
3:33:17
Rank: #21920 (+96)
21M → 35K
6:50 | 9:08/mi
23M
3:45:10
Rank: #21718 (+202)
35K → 23M
11:53 | 9:29/mi
24M
3:56:00
Rank: #21783 (-65)
23M → 24M
10:50 | 10:50/mi
40K· 24.85 mi
4:05:43
Rank: #21832 (-49)
24M → 40K
9:43 | 11:22/mi
25.2M
4:09:27
Rank: #21798 (+34)
40K → 25.2M
3:44 | 10:50/mi
Finish· 26.22 mi
4:17:56
Rank: #21629 (+169)
25.2M → Finish
8:29 | 8:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:45
Pace9:45 /mi
2nd Half
Distance13.11 mi
Time2:10:11
Pace9:56 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:1231:3510:1031:35
10:10
-
10K
6.21 mi12:19:391:00:029:4028:27
9:09
-1:01
15K
9.32 mi12:49:201:29:439:3829:41
9:33
+0:24
20K
12.43 mi13:21:102:01:339:4731:50
10:15
+0:42
Half
13.11 mi13:27:222:07:459:456:12
9:05
-1:10
25K
15.53 mi13:50:072:30:309:4122:45
9:23
+0:18
30K
18.64 mi14:22:083:02:319:4732:01
10:18
+0:55
20M
20.00 mi14:35:403:16:039:4813:32
9:58
-0:20
21M
21.00 mi14:46:043:26:279:5010:24
10:24
+0:26
35K
21.75 mi14:52:543:33:179:486:50
9:08
-1:16
23M
23.00 mi15:04:473:45:109:4711:53
9:29
+0:21
24M
24.00 mi15:15:373:56:009:5010:50
10:50
+1:21
40K
24.85 mi15:25:204:05:439:539:43
11:22
+0:32
25.2M
25.20 mi15:29:044:09:279:543:44
10:50
-0:32
Finish
26.22 mi15:37:334:17:569:518:29
8:19
-2:31

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

8:19 /mi

Average Pace

9:51 /mi

Slowest Pace

11:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:17

44% of race

Time at Steady Pace

1:48:58

42% of race

Time at Slower Pace

34:41

13% of race

Average Pace: 9:50 /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 mi11:51:1231:3510:1031:35
10:10
#23849
10K
6.21 mi12:19:391:00:029:4028:27
9:09
#22781
15K
9.32 mi12:49:201:29:439:3829:41
9:33
#22656
20K
12.43 mi13:21:102:01:339:4731:50
10:15
#22877
Half
13.11 mi13:27:222:07:459:456:12
9:05
#22787
25K
15.53 mi13:50:072:30:309:4122:45
9:23
#22441
30K
18.64 mi14:22:083:02:319:4732:01
10:18
#22321
20M
20.00 mi14:35:403:16:039:4813:32
9:58
#22167
21M
21.00 mi14:46:043:26:279:5010:24
10:24
#22016
35K
21.75 mi14:52:543:33:179:486:50
9:08
#21920
23M
23.00 mi15:04:473:45:109:4711:53
9:29
#21718
24M
24.00 mi15:15:373:56:009:5010:50
10:50
#21783
40K
24.85 mi15:25:204:05:439:539:43
11:22
#21832
25.2M
25.20 mi15:29:044:09:279:543:44
10:50
#21798
Finish
26.22 mi15:37:334:17:569:518:29
8:19
#21629
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23849140121401222400(Top 84%)13365(Top 88%)13365(Top 253%)
10K6.21 mi3.10 mi22781+106813514+49813514+49821488(Top 81%)12918(Top 85%)12918(Top 244%)
15K9.32 mi3.11 mi22656+12513467+4713467+4722400(Top 84%)13365(Top 88%)13365(Top 253%)
20K12.43 mi3.11 mi22877-22113572-10513572-10523371(Top 88%)13797(Top 91%)13797(Top 261%)
Half13.11 mi0.68 mi22787+9013531+4113531+4120780(Top 78%)12647(Top 83%)12647(Top 239%)
25K15.53 mi2.42 mi22441+34613344+18713344+18720454(Top 77%)12473(Top 82%)12473(Top 236%)
30K18.64 mi3.11 mi22321+12013281+6313281+6321782(Top 82%)12979(Top 86%)12979(Top 246%)
20M20.00 mi1.36 mi22167+15413208+7313208+7320366(Top 77%)12286(Top 81%)12286(Top 232%)
21M21.00 mi1.00 mi22016+15113131+7713131+7719271(Top 72%)11754(Top 77%)11754(Top 222%)
35K21.75 mi0.75 mi21920+9613090+4113090+4118468(Top 69%)11369(Top 75%)11369(Top 215%)
23M23.00 mi1.25 mi21718+20212973+11712973+11718304(Top 69%)11271(Top 74%)11271(Top 213%)
24M24.00 mi1.00 mi21783-6512994-2112994-2122715(Top 85%)13213(Top 87%)13213(Top 250%)
40K24.85 mi0.85 mi21832-4913004-1013004-1022992(Top 86%)13313(Top 88%)13313(Top 252%)
25.2M25.20 mi0.35 mi21798+3412986+1812986+1820030(Top 75%)11938(Top 79%)11938(Top 226%)
Finish26.22 mi1.02 mi21629+16912898+8812898+8814253(Top 54%)9372(Top 62%)9372(Top 177%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21stories
+97ft-345ft

Overall

22400

Males

13365

M18-39

13365

5K→10K

3.1 - 6.2 mi

Top 81%
×5stories
+79ft-138ft

Overall

21488

Males

12918

M18-39

12918

10K→15K

6.2 - 9.3 mi

Top 84%
×3stories
+67ft-78ft

Overall

22400

Males

13365

M18-39

13365

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

23371

Males

13797

M18-39

13797

20K→Half

12.4 - 13.1 mi

Top 78%
×2stories
+19ft-37ft

Overall

20780

Males

12647

M18-39

12647

Half→25K

13.1 - 15.5 mi

Top 77%
×4stories
+66ft-88ft

Overall

20454

Males

12473

M18-39

12473

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

21782

Males

12979

M18-39

12979

30K→20M

18.6 - 20.0 mi

Top 77%
×5stories
+64ft-50ft

Overall

20366

Males

12286

M18-39

12286

20M→21M

20.0 - 21.0 mi

Top 72%
×8stories
+106ft-24ft

Overall

19271

Males

11754

M18-39

11754

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

18468

Males

11369

M18-39

11369

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

18304

Males

11271

M18-39

11271

23M→24M

23.0 - 24.0 mi

Top 85%
×6stories
+12ft-82ft

Overall

22715

Males

13213

M18-39

13213

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

22992

Males

13313

M18-39

13313

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

20030

Males

11938

M18-39

11938

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

14253

Males

9372

M18-39

9372

Passing Analysis

Category:
Athletes Passed
2846
Passed By
626
Net Change
+2220
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23849
5K → 10K10779+1068#23849#22781
10K → 15K21691+125#22781#22656
15K → 20K66287-221#22656#22877
20K → Half922+90#22877#22787
Half → 25K3482+346#22787#22441
25K → 30K17959+120#22441#22321
30K → 20M1617+154#22321#22167
20M → 21M1576+151#22167#22016
21M → 35K971+96#22016#21920
35K → 23M2042+202#21920#21718
23M → 24M2186-65#21718#21783
24M → 40K2574-49#21783#21832
40K → 25.2M340+34#21832#21798
25.2M → Finish1690+169#21798#21629
TOTALS2846626+2220
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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