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BOSTON MARATHON 2023

Sebastian Corina

Bib: 30071•M

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 30%
Gender (Male)
#0 / 15176
Top 44%
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
23:45
Rank: #10942
Start → 5K
23:45 | 7:39/mi
10K· 6.21 mi
46:47
Rank: #10289 (+653)
5K → 10K
23:02 | 7:25/mi
15K· 9.32 mi
1:10:01
Rank: #10163 (+126)
10K → 15K
23:14 | 7:29/mi
20K· 12.43 mi
1:33:14
Rank: #9843 (+320)
15K → 20K
23:13 | 7:28/mi
Half· 13.11 mi
1:38:17
Rank: #9815 (+28)
20K → Half
5:03 | 7:24/mi
25K· 15.53 mi
1:56:18
Rank: #9525 (+290)
Half → 25K
18:01 | 7:26/mi
30K· 18.64 mi
2:19:34
Rank: #9064 (+461)
25K → 30K
23:16 | 7:29/mi
20M
2:29:37
Rank: #8796 (+268)
30K → 20M
10:03 | 7:24/mi
21M
2:37:23
Rank: #8593 (+203)
20M → 21M
7:46 | 7:46/mi
35K· 21.75 mi
2:42:51
Rank: #8535 (+58)
21M → 35K
5:28 | 7:18/mi
23M
2:52:23
Rank: #8417 (+118)
35K → 23M
9:32 | 7:37/mi
24M
2:59:32
Rank: #8258 (+159)
23M → 24M
7:09 | 7:09/mi
40K· 24.85 mi
3:05:43
Rank: #8093 (+165)
24M → 40K
6:11 | 7:14/mi
25.2M
3:08:26
Rank: #8036 (+57)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
3:15:47
Rank: #7945 (+91)
25.2M → Finish
7:21 | 7:13/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:38:17
Pace7:30 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:37:30
Pace7:26 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:0923:457:3923:45
7:39
-
10K
6.21 mi12:05:1146:477:3223:02
7:25
-0:14
15K
9.32 mi12:28:251:10:017:3123:14
7:29
+0:04
20K
12.43 mi12:51:381:33:147:3023:13
7:28
-0:01
Half
13.11 mi12:56:411:38:177:305:03
7:24
-0:04
25K
15.53 mi13:14:421:56:187:2918:01
7:26
+0:02
30K
18.64 mi13:37:582:19:347:2923:16
7:29
+0:03
20M
20.00 mi13:48:012:29:377:2910:03
7:24
-0:05
21M
21.00 mi13:55:472:37:237:307:46
7:46
+0:22
35K
21.75 mi14:01:152:42:517:295:28
7:18
-0:28
23M
23.00 mi14:10:472:52:237:309:32
7:37
+0:19
24M
24.00 mi14:17:562:59:327:297:09
7:09
-0:28
40K
24.85 mi14:24:073:05:437:286:11
7:14
+0:05
25.2M
25.20 mi14:26:503:08:267:292:43
7:53
+0:39
Finish
26.22 mi14:34:113:15:477:287:21
7:13
-0:40

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

7:09 /mi

Average Pace

7:28 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:04

99% of race

Time at Steady Pace

2:43

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:28 /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 mi11:42:0923:457:3923:45
7:39
#10942
10K
6.21 mi12:05:1146:477:3223:02
7:25
#10289
15K
9.32 mi12:28:251:10:017:3123:14
7:29
#10163
20K
12.43 mi12:51:381:33:147:3023:13
7:28
#9843
Half
13.11 mi12:56:411:38:177:305:03
7:24
#9815
25K
15.53 mi13:14:421:56:187:2918:01
7:26
#9525
30K
18.64 mi13:37:582:19:347:2923:16
7:29
#9064
20M
20.00 mi13:48:012:29:377:2910:03
7:24
#8796
21M
21.00 mi13:55:472:37:237:307:46
7:46
#8593
35K
21.75 mi14:01:152:42:517:295:28
7:18
#8535
23M
23.00 mi14:10:472:52:237:309:32
7:37
#8417
24M
24.00 mi14:17:562:59:327:297:09
7:09
#8258
40K
24.85 mi14:24:073:05:437:286:11
7:14
#8093
25.2M
25.20 mi14:26:503:08:267:292:43
7:53
#8036
Finish
26.22 mi14:34:113:15:477:287:21
7:13
#7945
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi10942862386239979(Top 37%)8131(Top 54%)8131(Top 154%)
10K6.21 mi3.10 mi10289+6538305+3188305+3189725(Top 37%)8007(Top 53%)8007(Top 152%)
15K9.32 mi3.11 mi10163+1268258+478258+479979(Top 37%)8131(Top 54%)8131(Top 154%)
20K12.43 mi3.11 mi9843+3208057+2018057+2019084(Top 34%)7542(Top 50%)7542(Top 143%)
Half13.11 mi0.68 mi9815+288041+168041+169353(Top 35%)7703(Top 51%)7703(Top 146%)
25K15.53 mi2.42 mi9525+2907851+1907851+1908236(Top 31%)6959(Top 46%)6959(Top 132%)
30K18.64 mi3.11 mi9064+4617539+3127539+3127153(Top 27%)6168(Top 41%)6168(Top 117%)
20M20.00 mi1.36 mi8796+2687361+1787361+1786173(Top 23%)5425(Top 36%)5425(Top 103%)
21M21.00 mi1.00 mi8593+2037213+1487213+1486008(Top 23%)5206(Top 34%)5206(Top 99%)
35K21.75 mi0.75 mi8535+587163+507163+507161(Top 27%)6001(Top 40%)6001(Top 114%)
23M23.00 mi1.25 mi8417+1187074+897074+897172(Top 27%)5932(Top 39%)5932(Top 112%)
24M24.00 mi1.00 mi8258+1596948+1266948+1265479(Top 21%)4768(Top 31%)4768(Top 90%)
40K24.85 mi0.85 mi8093+1656824+1246824+1245070(Top 19%)4400(Top 29%)4400(Top 83%)
25.2M25.20 mi0.35 mi8036+576780+446780+445823(Top 22%)4843(Top 32%)4843(Top 92%)
Finish26.22 mi1.02 mi7945+916701+796701+796509(Top 24%)5260(Top 35%)5260(Top 100%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

9979

Males

8131

M18-39

8131

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

9725

Males

8007

M18-39

8007

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

9979

Males

8131

M18-39

8131

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9084

Males

7542

M18-39

7542

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

9353

Males

7703

M18-39

7703

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8236

Males

6959

M18-39

6959

25K→30K

15.5 - 18.6 mi

Top 27%
×9stories
+181ft-148ft

Overall

7153

Males

6168

M18-39

6168

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6173

Males

5425

M18-39

5425

20M→21M

20.0 - 21.0 mi

Top 23%
×8stories
+106ft-24ft

Overall

6008

Males

5206

M18-39

5206

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7161

Males

6001

M18-39

6001

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7172

Males

5932

M18-39

5932

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5479

Males

4768

M18-39

4768

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5070

Males

4400

M18-39

4400

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5823

Males

4843

M18-39

4843

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2stories
+22ft-21ft

Overall

6509

Males

5260

M18-39

5260

Passing Analysis

Category:
Athletes Passed
3355*
Passed By
358
Net Change
+2997
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10942
5K → 10K732*79+653#10942#10289
10K → 15K248122+126#10289#10163
15K → 20K358*38+320#10163#9843
20K → Half4012+28#9843#9815
Half → 25K2999+290#9815#9525
25K → 30K469*8+461#9525#9064
30K → 20M2713+268#9064#8796
20M → 21M2107+203#8796#8593
21M → 35K7113+58#8593#8535
35K → 23M14325+118#8535#8417
23M → 24M1678+159#8417#8258
24M → 40K1716+165#8258#8093
40K → 25.2M603+57#8093#8036
25.2M → Finish11625+91#8036#7945
TOTALS3355*358+2997

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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