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BOSTON MARATHON 2023

John Corvi

Bib: 25002•M

MA

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
26:42
Rank: #18178
Start → 5K
26:42 | 8:36/mi
10K· 6.21 mi
53:38
Rank: #18690 (-512)
5K → 10K
26:56 | 8:40/mi
15K· 9.32 mi
1:19:43
Rank: #18188 (+502)
10K → 15K
26:05 | 8:24/mi
20K· 12.43 mi
1:45:25
Rank: #17440 (+748)
15K → 20K
25:42 | 8:16/mi
Half· 13.11 mi
1:50:57
Rank: #17337 (+103)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:11:43
Rank: #17205 (+132)
Half → 25K
20:46 | 8:34/mi
30K· 18.64 mi
2:39:27
Rank: #17080 (+125)
25K → 30K
27:44 | 8:56/mi
20M
2:52:06
Rank: #17165 (-85)
30K → 20M
12:39 | 9:19/mi
21M
3:02:15
Rank: #17262 (-97)
20M → 21M
10:09 | 10:09/mi
35K· 21.75 mi
3:08:41
Rank: #17197 (+65)
21M → 35K
6:26 | 8:36/mi
23M
3:20:41
Rank: #17327 (-130)
35K → 23M
12:00 | 9:35/mi
24M
3:30:19
Rank: #17472 (-145)
23M → 24M
9:38 | 9:38/mi
40K· 24.85 mi
3:37:53
Rank: #17398 (+74)
24M → 40K
7:34 | 8:51/mi
25.2M
3:40:58
Rank: #17303 (+95)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:49:13
Rank: #17164 (+139)
25.2M → Finish
8:15 | 8:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:57
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time1:58:16
Pace9:01 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:4926:428:3626:42
8:36
-
10K
6.21 mi12:09:4553:388:3826:56
8:40
+0:04
15K
9.32 mi12:35:501:19:438:3326:05
8:24
-0:16
20K
12.43 mi13:01:321:45:258:2925:42
8:16
-0:08
Half
13.11 mi13:07:041:50:578:285:32
8:07
-0:09
25K
15.53 mi13:27:502:11:438:2920:46
8:34
+0:27
30K
18.64 mi13:55:342:39:278:3327:44
8:56
+0:22
20M
20.00 mi14:08:132:52:068:3612:39
9:19
+0:23
21M
21.00 mi14:18:223:02:158:4110:09
10:09
+0:50
35K
21.75 mi14:24:483:08:418:416:26
8:36
-1:33
23M
23.00 mi14:36:483:20:418:4412:00
9:35
+0:59
24M
24.00 mi14:46:263:30:198:469:38
9:38
+0:03
40K
24.85 mi14:54:003:37:538:467:34
8:51
-0:47
25.2M
25.20 mi14:57:053:40:588:463:05
8:56
+0:05
Finish
26.22 mi15:05:203:49:138:458:15
8:06
-0:50

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

8:06 /mi

Average Pace

8:45 /mi

Slowest Pace

10:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

39:29

17% of race

Time at Steady Pace

2:25:18

63% of race

Time at Slower Pace

44:26

19% of race

Average Pace: 8:45 /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 mi11:42:4926:428:3626:42
8:36
#18178
10K
6.21 mi12:09:4553:388:3826:56
8:40
#18690
15K
9.32 mi12:35:501:19:438:3326:05
8:24
#18188
20K
12.43 mi13:01:321:45:258:2925:42
8:16
#17440
Half
13.11 mi13:07:041:50:578:285:32
8:07
#17337
25K
15.53 mi13:27:502:11:438:2920:46
8:34
#17205
30K
18.64 mi13:55:342:39:278:3327:44
8:56
#17080
20M
20.00 mi14:08:132:52:068:3612:39
9:19
#17165
21M
21.00 mi14:18:223:02:158:4110:09
10:09
#17262
35K
21.75 mi14:24:483:08:418:416:26
8:36
#17197
23M
23.00 mi14:36:483:20:418:4412:00
9:35
#17327
24M
24.00 mi14:46:263:30:198:469:38
9:38
#17472
40K
24.85 mi14:54:003:37:538:467:34
8:51
#17398
25.2M
25.20 mi14:57:053:40:588:463:05
8:56
#17303
Finish
26.22 mi15:05:203:49:138:458:15
8:06
#17164
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi18178114881148817108(Top 64%)11098(Top 73%)11098(Top 210%)
10K6.21 mi3.10 mi18690-51211729-24111729-24119233(Top 72%)11990(Top 79%)11990(Top 227%)
15K9.32 mi3.11 mi18188+50211533+19611533+19617108(Top 64%)11098(Top 73%)11098(Top 210%)
20K12.43 mi3.11 mi17440+74811235+29811235+29815427(Top 58%)10428(Top 69%)10428(Top 197%)
Half13.11 mi0.68 mi17337+10311193+4211193+4215193(Top 57%)10386(Top 68%)10386(Top 197%)
25K15.53 mi2.42 mi17205+13211121+7211121+7216580(Top 62%)10796(Top 71%)10796(Top 204%)
30K18.64 mi3.11 mi17080+12511046+7511046+7516792(Top 63%)10825(Top 71%)10825(Top 205%)
20M20.00 mi1.36 mi17165-8511065-1911065-1918044(Top 68%)11256(Top 74%)11256(Top 213%)
21M21.00 mi1.00 mi17262-9711092-2711092-2718531(Top 70%)11439(Top 75%)11439(Top 216%)
35K21.75 mi0.75 mi17197+6511059+3311059+3315836(Top 59%)10227(Top 67%)10227(Top 194%)
23M23.00 mi1.25 mi17327-13011095-3611095-3618646(Top 70%)11409(Top 75%)11409(Top 216%)
24M24.00 mi1.00 mi17472-14511145-5011145-5019668(Top 74%)11848(Top 78%)11848(Top 224%)
40K24.85 mi0.85 mi17398+7411097+4811097+4815342(Top 58%)9840(Top 65%)9840(Top 186%)
25.2M25.20 mi0.35 mi17303+9511046+5111046+5112173(Top 46%)8367(Top 55%)8367(Top 158%)
Finish26.22 mi1.02 mi17164+13910982+6410982+6412744(Top 48%)8659(Top 57%)8659(Top 164%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

17108

Males

11098

M18-39

11098

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

19233

Males

11990

M18-39

11990

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

17108

Males

11098

M18-39

11098

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

15427

Males

10428

M18-39

10428

20K→Half

12.4 - 13.1 mi

Top 57%
×2stories
+19ft-37ft

Overall

15193

Males

10386

M18-39

10386

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

16580

Males

10796

M18-39

10796

25K→30K

15.5 - 18.6 mi

Top 63%
×9stories
+181ft-148ft

Overall

16792

Males

10825

M18-39

10825

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

18044

Males

11256

M18-39

11256

20M→21M

20.0 - 21.0 mi

Top 70%
×8stories
+106ft-24ft

Overall

18531

Males

11439

M18-39

11439

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

15836

Males

10227

M18-39

10227

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

18646

Males

11409

M18-39

11409

23M→24M

23.0 - 24.0 mi

Top 74%
×6stories
+12ft-82ft

Overall

19668

Males

11848

M18-39

11848

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

15342

Males

9840

M18-39

9840

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12173

Males

8367

M18-39

8367

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

12744

Males

8659

M18-39

8659

Passing Analysis

Category:
Athletes Passed
2552
Passed By
1538
Net Change
+1014
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18178
5K → 10K128640-512#18178#18690
10K → 15K53634+502#18690#18188
15K → 20K7557+748#18188#17440
20K → Half1052+103#17440#17337
Half → 25K18553+132#17337#17205
25K → 30K229104+125#17205#17080
30K → 20M53138-85#17080#17165
20M → 21M61158-97#17165#17262
21M → 35K7813+65#17262#17197
35K → 23M46176-130#17197#17327
23M → 24M28173-145#17327#17472
24M → 40K9925+74#17472#17398
40K → 25.2M983+95#17398#17303
25.2M → Finish15112+139#17303#17164
TOTALS25521538+1014
📊

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