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BOSTON MARATHON 2023

Alex Censullo

Bib: 5035•M

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 12%
Gender (Male)
#0 / 15176
Top 20%
Division (M18-39)
#0 / 5285
Top 42%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:09
Rank: #2210
Start → 5K
20:09 | 6:29/mi
10K· 6.21 mi
39:54
Rank: #2097 (+113)
5K → 10K
19:45 | 6:21/mi
15K· 9.32 mi
59:44
Rank: #2047 (+50)
10K → 15K
19:50 | 6:23/mi
20K· 12.43 mi
1:19:55
Rank: #2093 (-46)
15K → 20K
20:11 | 6:30/mi
Half· 13.11 mi
1:24:22
Rank: #2133 (-40)
20K → Half
4:27 | 6:31/mi
25K· 15.53 mi
1:40:32
Rank: #2269 (-136)
Half → 25K
16:10 | 6:40/mi
30K· 18.64 mi
2:01:57
Rank: #2432 (-163)
25K → 30K
21:25 | 6:54/mi
20M
2:11:36
Rank: #2542 (-110)
30K → 20M
9:39 | 7:06/mi
21M
2:19:08
Rank: #2605 (-63)
20M → 21M
7:32 | 7:32/mi
35K· 21.75 mi
2:24:17
Rank: #2645 (-40)
21M → 35K
5:09 | 6:53/mi
23M
2:33:32
Rank: #2823 (-178)
35K → 23M
9:15 | 7:23/mi
24M
2:40:36
Rank: #2918 (-95)
23M → 24M
7:04 | 7:04/mi
40K· 24.85 mi
2:46:51
Rank: #3000 (-82)
24M → 40K
6:15 | 7:19/mi
25.2M
2:49:49
Rank: #3112 (-112)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
2:57:02
Rank: #3198 (-86)
25.2M → Finish
7:13 | 7:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:22
Pace6:26 /mi
2nd Half
Distance13.11 mi
Time1:32:40
Pace7:04 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4720:096:2920:09
6:29
-
10K
6.21 mi10:42:3239:546:2519:45
6:21
-0:08
15K
9.32 mi11:02:2259:446:2519:50
6:23
+0:02
20K
12.43 mi11:22:331:19:556:2620:11
6:30
+0:07
Half
13.11 mi11:27:001:24:226:264:27
6:31
+0:01
25K
15.53 mi11:43:101:40:326:2816:10
6:40
+0:09
30K
18.64 mi12:04:352:01:576:3321:25
6:54
+0:14
20M
20.00 mi12:14:142:11:366:359:39
7:06
+0:12
21M
21.00 mi12:21:462:19:086:387:32
7:32
+0:26
35K
21.75 mi12:26:552:24:176:385:09
6:53
-0:39
23M
23.00 mi12:36:102:33:326:419:15
7:23
+0:30
24M
24.00 mi12:43:142:40:366:427:04
7:04
-0:19
40K
24.85 mi12:49:292:46:516:436:15
7:19
+0:15
25.2M
25.20 mi12:52:272:49:496:442:58
8:36
+1:17
Finish
26.22 mi12:59:402:57:026:457:13
7:05
-1:31

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

6:21 /mi

Average Pace

6:45 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:24:22

48% of race

Time at Steady Pace

1:06:40

38% of race

Time at Slower Pace

26:00

15% of race

Average Pace: 6:45 /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 mi10:22:4720:096:2920:09
6:29
#2210
10K
6.21 mi10:42:3239:546:2519:45
6:21
#2097
15K
9.32 mi11:02:2259:446:2519:50
6:23
#2047
20K
12.43 mi11:22:331:19:556:2620:11
6:30
#2093
Half
13.11 mi11:27:001:24:226:264:27
6:31
#2133
25K
15.53 mi11:43:101:40:326:2816:10
6:40
#2269
30K
18.64 mi12:04:352:01:576:3321:25
6:54
#2432
20M
20.00 mi12:14:142:11:366:359:39
7:06
#2542
21M
21.00 mi12:21:462:19:086:387:32
7:32
#2605
35K
21.75 mi12:26:552:24:176:385:09
6:53
#2645
23M
23.00 mi12:36:102:33:326:419:15
7:23
#2823
24M
24.00 mi12:43:142:40:366:427:04
7:04
#2918
40K
24.85 mi12:49:292:46:516:436:15
7:19
#3000
25.2M
25.20 mi12:52:272:49:496:442:58
8:36
#3112
Finish
26.22 mi12:59:402:57:026:457:13
7:05
#3198
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2210210921092016(Top 8%)1931(Top 13%)1931(Top 37%)
10K6.21 mi3.10 mi2097+1132007+1022007+1022029(Top 8%)1940(Top 13%)1940(Top 37%)
15K9.32 mi3.11 mi2047+501962+451962+452016(Top 8%)1931(Top 13%)1931(Top 37%)
20K12.43 mi3.11 mi2093-462005-432005-432271(Top 9%)2176(Top 14%)2176(Top 41%)
Half13.11 mi0.68 mi2133-402043-382043-382943(Top 11%)2818(Top 19%)2818(Top 53%)
25K15.53 mi2.42 mi2269-1362175-1322175-1323119(Top 12%)2974(Top 20%)2974(Top 56%)
30K18.64 mi3.11 mi2432-1632329-1542329-1543604(Top 14%)3384(Top 22%)3384(Top 64%)
20M20.00 mi1.36 mi2542-1102431-1022431-1024598(Top 17%)4217(Top 28%)4217(Top 80%)
21M21.00 mi1.00 mi2605-632493-622493-624718(Top 18%)4259(Top 28%)4259(Top 81%)
35K21.75 mi0.75 mi2645-402528-352528-354643(Top 17%)4208(Top 28%)4208(Top 80%)
23M23.00 mi1.25 mi2823-1782690-1622690-1625766(Top 22%)5016(Top 33%)5016(Top 95%)
24M24.00 mi1.00 mi2918-952774-842774-844980(Top 19%)4398(Top 29%)4398(Top 83%)
40K24.85 mi0.85 mi3000-822845-712845-715471(Top 21%)4658(Top 31%)4658(Top 88%)
25.2M25.20 mi0.35 mi3112-1122947-1022947-10210043(Top 38%)7277(Top 48%)7277(Top 138%)
Finish26.22 mi1.02 mi3198-863026-793026-795675(Top 21%)4702(Top 31%)4702(Top 89%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2016

Males

1931

M18-39

1931

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2029

Males

1940

M18-39

1940

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2016

Males

1931

M18-39

1931

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2271

Males

2176

M18-39

2176

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

2943

Males

2818

M18-39

2818

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3119

Males

2974

M18-39

2974

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3604

Males

3384

M18-39

3384

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4598

Males

4217

M18-39

4217

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

4718

Males

4259

M18-39

4259

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4643

Males

4208

M18-39

4208

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

5766

Males

5016

M18-39

5016

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

4980

Males

4398

M18-39

4398

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5471

Males

4658

M18-39

4658

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10043

Males

7277

M18-39

7277

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

5675

Males

4702

M18-39

4702

Passing Analysis

Category:
Athletes Passed
480
Passed By
1468
Net Change
-988
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2210
5K → 10K18370+113#2210#2097
10K → 15K8838+50#2097#2047
15K → 20K4995-46#2047#2093
20K → Half444-40#2093#2133
Half → 25K13149-136#2133#2269
25K → 30K27190-163#2269#2432
30K → 20M15125-110#2432#2542
20M → 21M1982-63#2542#2605
21M → 35K1151-40#2605#2645
35K → 23M12190-178#2645#2823
23M → 24M16111-95#2823#2918
24M → 40K22104-82#2918#3000
40K → 25.2M2114-112#3000#3112
25.2M → Finish19105-86#3112#3198
TOTALS4801468-988
📊

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