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BOSTON MARATHON 2023

Sean Laffey

Bib: 2719•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 6%
Division (M18-39)
#0 / 5285
Top 15%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:29
Rank: #1334
Start → 5K
19:29 | 6:16/mi
10K· 6.21 mi
38:38
Rank: #1245 (+89)
5K → 10K
19:09 | 6:10/mi
15K· 9.32 mi
57:52
Rank: #1218 (+27)
10K → 15K
19:14 | 6:11/mi
20K· 12.43 mi
1:17:14
Rank: #1195 (+23)
15K → 20K
19:22 | 6:14/mi
Half· 13.11 mi
1:21:26
Rank: #1190 (+5)
20K → Half
4:12 | 6:09/mi
25K· 15.53 mi
1:36:43
Rank: #1203 (-13)
Half → 25K
15:17 | 6:18/mi
30K· 18.64 mi
1:56:42
Rank: #1204 (-1)
25K → 30K
19:59 | 6:26/mi
20M
2:05:34
Rank: #1208 (-4)
30K → 20M
8:52 | 6:31/mi
21M
2:12:14
Rank: #1179 (+29)
20M → 21M
6:40 | 6:40/mi
35K· 21.75 mi
2:16:48
Rank: #1155 (+24)
21M → 35K
4:34 | 6:06/mi
23M
2:24:43
Rank: #1118 (+37)
35K → 23M
7:55 | 6:19/mi
24M
2:30:43
Rank: #1090 (+28)
23M → 24M
6:00 | 6:00/mi
40K· 24.85 mi
2:35:51
Rank: #1027 (+63)
24M → 40K
5:08 | 6:00/mi
25.2M
2:38:04
Rank: #1004 (+23)
40K → 25.2M
2:13 | 6:26/mi
Finish· 26.22 mi
2:44:02
Rank: #965 (+39)
25.2M → Finish
5:58 | 5:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:26
Pace6:13 /mi
2nd Half
Distance13.11 mi
Time1:22:36
Pace6:18 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1719:296:1619:29
6:16
-
10K
6.21 mi10:39:2638:386:1319:09
6:10
-0:06
15K
9.32 mi10:58:4057:526:1319:14
6:11
+0:01
20K
12.43 mi11:18:021:17:146:1319:22
6:14
+0:03
Half
13.11 mi11:22:141:21:266:134:12
6:09
-0:05
25K
15.53 mi11:37:311:36:436:1415:17
6:18
+0:09
30K
18.64 mi11:57:301:56:426:1619:59
6:26
+0:08
20M
20.00 mi12:06:222:05:346:178:52
6:31
+0:05
21M
21.00 mi12:13:022:12:146:186:40
6:40
+0:09
35K
21.75 mi12:17:362:16:486:174:34
6:06
-0:34
23M
23.00 mi12:25:312:24:436:187:55
6:19
+0:13
24M
24.00 mi12:31:312:30:436:176:00
6:00
-0:19
40K
24.85 mi12:36:392:35:516:165:08
6:00
0:00
25.2M
25.20 mi12:38:522:38:046:162:13
6:26
+0:26
Finish
26.22 mi12:44:502:44:026:165:58
5:51
-0:35

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

5:51 /mi

Average Pace

6:16 /mi

Slowest Pace

6:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:28:30

91% of race

Time at Steady Pace

15:32

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:15 /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 mi10:20:1719:296:1619:29
6:16
#1334
10K
6.21 mi10:39:2638:386:1319:09
6:10
#1245
15K
9.32 mi10:58:4057:526:1319:14
6:11
#1218
20K
12.43 mi11:18:021:17:146:1319:22
6:14
#1195
Half
13.11 mi11:22:141:21:266:134:12
6:09
#1190
25K
15.53 mi11:37:311:36:436:1415:17
6:18
#1203
30K
18.64 mi11:57:301:56:426:1619:59
6:26
#1204
20M
20.00 mi12:06:222:05:346:178:52
6:31
#1208
21M
21.00 mi12:13:022:12:146:186:40
6:40
#1179
35K
21.75 mi12:17:362:16:486:174:34
6:06
#1155
23M
23.00 mi12:25:312:24:436:187:55
6:19
#1118
24M
24.00 mi12:31:312:30:436:176:00
6:00
#1090
40K
24.85 mi12:36:392:35:516:165:08
6:00
#1027
25.2M
25.20 mi12:38:522:38:046:162:13
6:26
#1004
Finish
26.22 mi12:44:502:44:026:165:58
5:51
#965
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1334126712671206(Top 5%)1149(Top 8%)1149(Top 22%)
10K6.21 mi3.10 mi1245+891180+871180+871211(Top 5%)1148(Top 8%)1148(Top 22%)
15K9.32 mi3.11 mi1218+271155+251155+251206(Top 5%)1149(Top 8%)1149(Top 22%)
20K12.43 mi3.11 mi1195+231137+181137+181146(Top 4%)1093(Top 7%)1093(Top 21%)
Half13.11 mi0.68 mi1190+51133+41133+41171(Top 4%)1120(Top 7%)1120(Top 21%)
25K15.53 mi2.42 mi1203-131148-151148-151339(Top 5%)1279(Top 8%)1279(Top 24%)
30K18.64 mi3.11 mi1204-11149-11149-11314(Top 5%)1256(Top 8%)1256(Top 24%)
20M20.00 mi1.36 mi1208-41154-51154-51507(Top 6%)1435(Top 9%)1435(Top 27%)
21M21.00 mi1.00 mi1179+291125+291125+291003(Top 4%)955(Top 6%)955(Top 18%)
35K21.75 mi0.75 mi1155+241101+241101+24935(Top 4%)887(Top 6%)887(Top 17%)
23M23.00 mi1.25 mi1118+371066+351066+35886(Top 3%)842(Top 6%)842(Top 16%)
24M24.00 mi1.00 mi1090+281038+281038+28556(Top 2%)526(Top 3%)526(Top 10%)
40K24.85 mi0.85 mi1027+63976+62976+62354(Top 1%)330(Top 2%)330(Top 6%)
25.2M25.20 mi0.35 mi1004+23954+22954+22410(Top 2%)388(Top 3%)388(Top 7%)
Finish26.22 mi1.02 mi965+39917+37917+37467(Top 2%)444(Top 3%)444(Top 8%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1206

Males

1149

M18-39

1149

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1211

Males

1148

M18-39

1148

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1206

Males

1149

M18-39

1149

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1146

Males

1093

M18-39

1093

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1171

Males

1120

M18-39

1120

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1339

Males

1279

M18-39

1279

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1314

Males

1256

M18-39

1256

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1507

Males

1435

M18-39

1435

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1003

Males

955

M18-39

955

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

935

Males

887

M18-39

887

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

886

Males

842

M18-39

842

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

556

Males

526

M18-39

526

24M→40K

24.0 - 24.9 mi

Top 1%
×1story
+6ft-20ft

Overall

354

Males

330

M18-39

330

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

410

Males

388

M18-39

388

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

467

Males

444

M18-39

444

Passing Analysis

Category:
Athletes Passed
570
Passed By
201
Net Change
+369
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1334
5K → 10K12536+89#1334#1245
10K → 15K4720+27#1245#1218
15K → 20K4724+23#1218#1195
20K → Half72+5#1195#1190
Half → 25K2033-13#1190#1203
25K → 30K4142-1#1203#1204
30K → 20M1620-4#1204#1208
20M → 21M389+29#1208#1179
21M → 35K284+24#1179#1155
35K → 23M447+37#1155#1118
23M → 24M302+28#1118#1090
24M → 40K630+63#1090#1027
40K → 25.2M230+23#1027#1004
25.2M → Finish412+39#1004#965
TOTALS570201+369
📊

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