Boston Marathon logo
BOSTON MARATHON 2023

Robert Cocuzzo

Bib: 31317•M

MA

0:00
0:00
/ mi
Be the first to cheer!
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
29:11
Rank: #21802
Start → 5K
29:11 | 9:24/mi
10K· 6.21 mi
56:34
Rank: #21075 (+727)
5K → 10K
27:23 | 8:49/mi
15K· 9.32 mi
1:23:36
Rank: #20441 (+634)
10K → 15K
27:02 | 8:42/mi
20K· 12.43 mi
1:51:34
Rank: #20262 (+179)
15K → 20K
27:58 | 9:00/mi
Half· 13.11 mi
1:57:44
Rank: #20275 (-13)
20K → Half
6:10 | 9:02/mi
25K· 15.53 mi
2:20:18
Rank: #20283 (-8)
Half → 25K
22:34 | 9:18/mi
30K· 18.64 mi
2:53:12
Rank: #20797 (-514)
25K → 30K
32:54 | 10:35/mi
20M
3:07:25
Rank: #20866 (-69)
30K → 20M
14:13 | 10:28/mi
21M
3:18:44
Rank: #20901 (-35)
20M → 21M
11:19 | 11:19/mi
35K· 21.75 mi
3:26:20
Rank: #20930 (-29)
21M → 35K
7:36 | 10:10/mi
23M
3:39:37
Rank: #20956 (-26)
35K → 23M
13:17 | 10:37/mi
24M
3:50:26
Rank: #21050 (-94)
23M → 24M
10:49 | 10:49/mi
40K· 24.85 mi
3:59:46
Rank: #21108 (-58)
24M → 40K
9:20 | 10:55/mi
25.2M
4:03:48
Rank: #21124 (-16)
40K → 25.2M
4:02 | 11:42/mi
Finish· 26.22 mi
4:14:16
Rank: #21184 (-60)
25.2M → Finish
10:28 | 10:16/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:44
Pace8:59 /mi
2nd Half
Distance13.11 mi
Time2:16:32
Pace10:25 /mi
📊Positive Split: 16.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:4029:119:2429:11
9:24
-
10K
6.21 mi12:20:0356:349:0627:23
8:49
-0:35
15K
9.32 mi12:47:051:23:368:5827:02
8:42
-0:07
20K
12.43 mi13:15:031:51:348:5927:58
9:00
+0:18
Half
13.11 mi13:21:131:57:448:596:10
9:02
+0:02
25K
15.53 mi13:43:472:20:189:0222:34
9:18
+0:16
30K
18.64 mi14:16:412:53:129:1732:54
10:35
+1:17
20M
20.00 mi14:30:543:07:259:2214:13
10:28
-0:07
21M
21.00 mi14:42:133:18:449:2811:19
11:19
+0:51
35K
21.75 mi14:49:493:26:209:297:36
10:10
-1:09
23M
23.00 mi15:03:063:39:379:3313:17
10:37
+0:27
24M
24.00 mi15:13:553:50:269:3610:49
10:49
+0:12
40K
24.85 mi15:23:153:59:469:399:20
10:55
+0:06
25.2M
25.20 mi15:27:174:03:489:404:02
11:42
+0:47
Finish
26.22 mi15:37:454:14:169:4210:28
10:16
-1:26

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

8:42 /mi

Average Pace

9:42 /mi

Slowest Pace

11:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:18

55% of race

Time at Steady Pace

1:18:28

31% of race

Time at Slower Pace

35:30

14% of race

Average Pace: 9:42 /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 mi11:52:4029:119:2429:11
9:24
#21802
10K
6.21 mi12:20:0356:349:0627:23
8:49
#21075
15K
9.32 mi12:47:051:23:368:5827:02
8:42
#20441
20K
12.43 mi13:15:031:51:348:5927:58
9:00
#20262
Half
13.11 mi13:21:131:57:448:596:10
9:02
#20275
25K
15.53 mi13:43:472:20:189:0222:34
9:18
#20283
30K
18.64 mi14:16:412:53:129:1732:54
10:35
#20797
20M
20.00 mi14:30:543:07:259:2214:13
10:28
#20866
21M
21.00 mi14:42:133:18:449:2811:19
11:19
#20901
35K
21.75 mi14:49:493:26:209:297:36
10:10
#20930
23M
23.00 mi15:03:063:39:379:3313:17
10:37
#20956
24M
24.00 mi15:13:553:50:269:3610:49
10:49
#21050
40K
24.85 mi15:23:153:59:469:399:20
10:55
#21108
25.2M
25.20 mi15:27:174:03:489:404:02
11:42
#21124
Finish
26.22 mi15:37:454:14:169:4210:28
10:16
#21184
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21802129931299319005(Top 71%)11877(Top 78%)11877(Top 225%)
10K6.21 mi3.10 mi21075+72712697+29612697+29620023(Top 75%)12286(Top 81%)12286(Top 232%)
15K9.32 mi3.11 mi20441+63412438+25912438+25919005(Top 71%)11877(Top 78%)11877(Top 225%)
20K12.43 mi3.11 mi20262+17912370+6812370+6819722(Top 74%)12191(Top 80%)12191(Top 231%)
Half13.11 mi0.68 mi20275-1312383-1312383-1320645(Top 78%)12568(Top 83%)12568(Top 238%)
25K15.53 mi2.42 mi20283-812398-1512398-1520230(Top 76%)12383(Top 82%)12383(Top 234%)
30K18.64 mi3.11 mi20797-51412619-22112619-22122394(Top 84%)13247(Top 87%)13247(Top 251%)
20M20.00 mi1.36 mi20866-6912629-1012629-1021657(Top 81%)12846(Top 85%)12846(Top 243%)
21M21.00 mi1.00 mi20901-3512626+312626+321535(Top 81%)12755(Top 84%)12755(Top 241%)
35K21.75 mi0.75 mi20930-29126261262621709(Top 82%)12793(Top 84%)12793(Top 242%)
23M23.00 mi1.25 mi20956-2612617+912617+921595(Top 81%)12723(Top 84%)12723(Top 241%)
24M24.00 mi1.00 mi21050-9412655-3812655-3822708(Top 85%)13206(Top 87%)13206(Top 250%)
40K24.85 mi0.85 mi21108-5812673-1812673-1822203(Top 83%)12936(Top 85%)12936(Top 245%)
25.2M25.20 mi0.35 mi21124-1612675-212675-222000(Top 83%)12836(Top 85%)12836(Top 243%)
Finish26.22 mi1.02 mi21184-6012695-2012695-2022501(Top 85%)13086(Top 86%)13086(Top 248%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

19005

Males

11877

M18-39

11877

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

20023

Males

12286

M18-39

12286

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

19005

Males

11877

M18-39

11877

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

19722

Males

12191

M18-39

12191

20K→Half

12.4 - 13.1 mi

Top 78%
×2stories
+19ft-37ft

Overall

20645

Males

12568

M18-39

12568

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

20230

Males

12383

M18-39

12383

25K→30K

15.5 - 18.6 mi

Top 84%
×9stories
+181ft-148ft

Overall

22394

Males

13247

M18-39

13247

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

21657

Males

12846

M18-39

12846

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

21535

Males

12755

M18-39

12755

21M→35K

21.0 - 21.8 mi

Top 82%
×7stories
+17ft-86ft

Overall

21709

Males

12793

M18-39

12793

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

21595

Males

12723

M18-39

12723

23M→24M

23.0 - 24.0 mi

Top 85%
×6stories
+12ft-82ft

Overall

22708

Males

13206

M18-39

13206

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

22203

Males

12936

M18-39

12936

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22000

Males

12836

M18-39

12836

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2stories
+22ft-21ft

Overall

22501

Males

13086

M18-39

13086

Passing Analysis

Category:
Athletes Passed
2157
Passed By
1539
Net Change
+618
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21802
5K → 10K78457+727#21802#21075
10K → 15K65016+634#21075#20441
15K → 20K26687+179#20441#20262
20K → Half2639-13#20262#20275
Half → 25K120128-8#20275#20283
25K → 30K37551-514#20283#20797
30K → 20M53122-69#20797#20866
20M → 21M5085-35#20866#20901
21M → 35K2554-29#20901#20930
35K → 23M6389-26#20930#20956
23M → 24M18112-94#20956#21050
24M → 40K2684-58#21050#21108
40K → 25.2M1632-16#21108#21124
25.2M → Finish2383-60#21124#21184
TOTALS21571539+618
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing