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BOSTON MARATHON 2023

Corey Sullivan

Bib: 25525•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
28:24
Rank: #21004
Start → 5K
28:24 | 9:08/mi
10K· 6.21 mi
57:16
Rank: #21454 (-450)
5K → 10K
28:52 | 9:17/mi
15K· 9.32 mi
1:25:45
Rank: #21368 (+86)
10K → 15K
28:29 | 9:10/mi
20K· 12.43 mi
1:54:40
Rank: #21275 (+93)
15K → 20K
28:55 | 9:18/mi
Half· 13.11 mi
2:00:40
Rank: #21194 (+81)
20K → Half
6:00 | 8:48/mi
25K· 15.53 mi
2:23:25
Rank: #21067 (+127)
Half → 25K
22:45 | 9:23/mi
30K· 18.64 mi
2:54:34
Rank: #21064 (+3)
25K → 30K
31:09 | 10:02/mi
20M
3:09:55
Rank: #21264 (-200)
30K → 20M
15:21 | 11:18/mi
21M
3:23:06
Rank: #21561 (-297)
20M → 21M
13:11 | 13:11/mi
35K· 21.75 mi
3:31:24
Rank: #21678 (-117)
21M → 35K
8:18 | 11:06/mi
23M
3:46:07
Rank: #21837 (-159)
35K → 23M
14:43 | 11:45/mi
24M
3:56:52
Rank: #21873 (-36)
23M → 24M
10:45 | 10:45/mi
40K· 24.85 mi
4:05:44
Rank: #21836 (+37)
24M → 40K
8:52 | 10:22/mi
25.2M
4:09:56
Rank: #21855 (-19)
40K → 25.2M
4:12 | 12:11/mi
Finish· 26.22 mi
4:20:20
Rank: #21872 (-17)
25.2M → Finish
10:24 | 10:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:40
Pace9:12 /mi
2nd Half
Distance13.11 mi
Time2:19:40
Pace10:39 /mi
📊Positive Split: 15.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2428:249:0828:24
9:08
-
10K
6.21 mi12:20:1657:169:1328:52
9:17
+0:09
15K
9.32 mi12:48:451:25:459:1228:29
9:10
-0:07
20K
12.43 mi13:17:401:54:409:1428:55
9:18
+0:08
Half
13.11 mi13:23:402:00:409:126:00
8:48
-0:30
25K
15.53 mi13:46:252:23:259:1422:45
9:23
+0:35
30K
18.64 mi14:17:342:54:349:2231:09
10:02
+0:39
20M
20.00 mi14:32:553:09:559:3015:21
11:18
+1:16
21M
21.00 mi14:46:063:23:069:4013:11
13:11
+1:53
35K
21.75 mi14:54:243:31:249:438:18
11:06
-2:05
23M
23.00 mi15:09:073:46:079:5014:43
11:45
+0:39
24M
24.00 mi15:19:523:56:529:5210:45
10:45
-1:00
40K
24.85 mi15:28:444:05:449:538:52
10:22
-0:23
25.2M
25.20 mi15:32:564:09:569:554:12
12:11
+1:49
Finish
26.22 mi15:43:204:20:209:5610:24
10:12
-1:59

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

8:48 /mi

Average Pace

9:56 /mi

Slowest Pace

13:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:23:25

55% of race

Time at Steady Pace

1:01:10

23% of race

Time at Slower Pace

55:45

21% of race

Average Pace: 9:56 /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 mi11:51:2428:249:0828:24
9:08
#21004
10K
6.21 mi12:20:1657:169:1328:52
9:17
#21454
15K
9.32 mi12:48:451:25:459:1228:29
9:10
#21368
20K
12.43 mi13:17:401:54:409:1428:55
9:18
#21275
Half
13.11 mi13:23:402:00:409:126:00
8:48
#21194
25K
15.53 mi13:46:252:23:259:1422:45
9:23
#21067
30K
18.64 mi14:17:342:54:349:2231:09
10:02
#21064
20M
20.00 mi14:32:553:09:559:3015:21
11:18
#21264
21M
21.00 mi14:46:063:23:069:4013:11
13:11
#21561
35K
21.75 mi14:54:243:31:249:438:18
11:06
#21678
23M
23.00 mi15:09:073:46:079:5014:43
11:45
#21837
24M
24.00 mi15:19:523:56:529:5210:45
10:45
#21873
40K
24.85 mi15:28:444:05:449:538:52
10:22
#21836
25.2M
25.20 mi15:32:564:09:569:554:12
12:11
#21855
Finish
26.22 mi15:43:204:20:209:5610:24
10:12
#21872
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21004126131261321189(Top 80%)12835(Top 85%)12835(Top 243%)
10K6.21 mi3.10 mi21454-45012873-26012873-26021901(Top 82%)13111(Top 86%)13111(Top 248%)
15K9.32 mi3.11 mi21368+8612864+912864+921189(Top 80%)12835(Top 85%)12835(Top 243%)
20K12.43 mi3.11 mi21275+9312834+3012834+3020992(Top 79%)12747(Top 84%)12747(Top 241%)
Half13.11 mi0.68 mi21194+8112805+2912805+2919453(Top 73%)12094(Top 80%)12094(Top 229%)
25K15.53 mi2.42 mi21067+12712747+5812747+5820456(Top 77%)12475(Top 82%)12475(Top 236%)
30K18.64 mi3.11 mi21064+312724+2312724+2321098(Top 79%)12678(Top 84%)12678(Top 240%)
20M20.00 mi1.36 mi21264-20012792-6812792-6823163(Top 87%)13534(Top 89%)13534(Top 256%)
21M21.00 mi1.00 mi21561-29712930-13812930-13824280(Top 91%)14019(Top 92%)14019(Top 265%)
35K21.75 mi0.75 mi21678-11712972-4212972-4223451(Top 88%)13583(Top 90%)13583(Top 257%)
23M23.00 mi1.25 mi21837-15913032-6013032-6023645(Top 89%)13695(Top 90%)13695(Top 259%)
24M24.00 mi1.00 mi21873-3613041-913041-922555(Top 85%)13139(Top 87%)13139(Top 249%)
40K24.85 mi0.85 mi21836+3713007+3413007+3420912(Top 79%)12343(Top 81%)12343(Top 234%)
25.2M25.20 mi0.35 mi21855-1913013-613013-622785(Top 86%)13218(Top 87%)13218(Top 250%)
Finish26.22 mi1.02 mi21872-1713010+313010+322298(Top 84%)12999(Top 86%)12999(Top 246%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

21189

Males

12835

M18-39

12835

5K→10K

3.1 - 6.2 mi

Top 82%
×5stories
+79ft-138ft

Overall

21901

Males

13111

M18-39

13111

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

21189

Males

12835

M18-39

12835

15K→20K

9.3 - 12.4 mi

Top 79%
×5stories
+106ft-86ft

Overall

20992

Males

12747

M18-39

12747

20K→Half

12.4 - 13.1 mi

Top 73%
×2stories
+19ft-37ft

Overall

19453

Males

12094

M18-39

12094

Half→25K

13.1 - 15.5 mi

Top 77%
×4stories
+66ft-88ft

Overall

20456

Males

12475

M18-39

12475

25K→30K

15.5 - 18.6 mi

Top 79%
×9stories
+181ft-148ft

Overall

21098

Males

12678

M18-39

12678

30K→20M

18.6 - 20.0 mi

Top 87%
×5stories
+64ft-50ft

Overall

23163

Males

13534

M18-39

13534

20M→21M

20.0 - 21.0 mi

Top 91%
×8stories
+106ft-24ft

Overall

24280

Males

14019

M18-39

14019

21M→35K

21.0 - 21.8 mi

Top 88%
×7stories
+17ft-86ft

Overall

23451

Males

13583

M18-39

13583

35K→23M

21.8 - 23.0 mi

Top 89%
×5stories
+23ft-63ft

Overall

23645

Males

13695

M18-39

13695

23M→24M

23.0 - 24.0 mi

Top 85%
×6stories
+12ft-82ft

Overall

22555

Males

13139

M18-39

13139

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

20912

Males

12343

M18-39

12343

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

22785

Males

13218

M18-39

13218

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2stories
+22ft-21ft

Overall

22298

Males

12999

M18-39

12999

Passing Analysis

Category:
Athletes Passed
1116
Passed By
1984
Net Change
-868
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21004
5K → 10K111561-450#21004#21454
10K → 15K206120+86#21454#21368
15K → 20K193100+93#21368#21275
20K → Half821+81#21275#21194
Half → 25K17144+127#21194#21067
25K → 30K150147+3#21067#21064
30K → 20M34234-200#21064#21264
20M → 21M11308-297#21264#21561
21M → 35K9126-117#21561#21678
35K → 23M29188-159#21678#21837
23M → 24M2157-36#21837#21873
24M → 40K5922+37#21873#21836
40K → 25.2M827-19#21836#21855
25.2M → Finish3249-17#21855#21872
TOTALS11161984-868
📊

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