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BOSTON MARATHON 2023

Seth Siciliano

Bib: 4051•M

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 8%
Gender (Male)
#0 / 15176
Top 14%
Masters (Masters Men)
#0 / 9891
Top 5%
Division (M45-49)
#0 / 2252
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:09
Rank: #4722
Start → 5K
6:48/mi
21:09 split
10K· 6.21 mi
41:42
Rank: #4076 (+646)
5K → 10K
6:37/mi
20:33 split
15K· 9.32 mi
1:02:01
Rank: #3589 (+487)
10K → 15K
6:32/mi
20:19 split
20K· 12.43 mi
1:22:26
Rank: #3324 (+265)
15K → 20K
6:34/mi
20:25 split
Half· 13.11 mi
1:26:54
Rank: #3295 (+29)
20K → Half
6:33/mi
4:28 split
25K· 15.53 mi
1:42:50
Rank: #3132 (+163)
Half → 25K
6:34/mi
15:56 split
30K· 18.64 mi
2:03:17
Rank: #2814 (+318)
25K → 30K
6:35/mi
20:27 split
20M
2:12:06
Rank: #2673 (+141)
30K → 20M
6:29/mi
8:49 split
21M
2:18:53
Rank: #2550 (+123)
20M → 21M
6:47/mi
6:47 split
35K· 21.75 mi
2:23:41
Rank: #2505 (+45)
21M → 35K
6:25/mi
4:48 split
23M
2:31:54
Rank: #2416 (+89)
35K → 23M
6:34/mi
8:13 split
24M
2:38:17
Rank: #2363 (+53)
23M → 24M
6:23/mi
6:23 split
40K· 24.85 mi
2:43:48
Rank: #2300 (+63)
24M → 40K
6:27/mi
5:31 split
25.2M
2:46:09
Rank: #2272 (+28)
40K → 25.2M
6:49/mi
2:21 split
Finish· 26.22 mi
2:52:26
Rank: #2188 (+84)
25.2M → Finish
6:10/mi
6:17 split

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:26:54
Pace6:38 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:25:32
Pace6:31 /mi
📊Negative Split: 1.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0421:096:4821:09
6:48
-
10K
6.21 mi10:43:3741:426:4320:33
6:37
-0:11
15K
9.32 mi11:03:561:02:016:3920:19
6:32
-0:05
20K
12.43 mi11:24:211:22:266:3820:25
6:34
+0:02
Half
13.11 mi11:28:491:26:546:384:28
6:33
-0:01
25K
15.53 mi11:44:451:42:506:3715:56
6:34
+0:01
30K
18.64 mi12:05:122:03:176:3720:27
6:35
+0:01
20M
20.00 mi12:14:012:12:066:368:49
6:29
-0:06
21M
21.00 mi12:20:482:18:536:376:47
6:47
+0:18
35K
21.75 mi12:25:362:23:416:364:48
6:25
-0:22
23M
23.00 mi12:33:492:31:546:368:13
6:34
+0:09
24M
24.00 mi12:40:122:38:176:366:23
6:23
-0:11
40K
24.85 mi12:45:432:43:486:355:31
6:27
+0:04
25.2M
25.20 mi12:48:042:46:096:362:21
6:49
+0:22
Finish
26.22 mi12:54:212:52:266:356:17
6:10
-0:39

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

6:10 /mi

Average Pace

6:35 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:09

82% of race

Time at Steady Pace

30:17

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:35 /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 mi10:23:0421:096:4821:09
6:48
#4722
10K
6.21 mi10:43:3741:426:4320:33
6:37
#4076
15K
9.32 mi11:03:561:02:016:3920:19
6:32
#3589
20K
12.43 mi11:24:211:22:266:3820:25
6:34
#3324
Half
13.11 mi11:28:491:26:546:384:28
6:33
#3295
25K
15.53 mi11:44:451:42:506:3715:56
6:34
#3132
30K
18.64 mi12:05:122:03:176:3720:27
6:35
#2814
20M
20.00 mi12:14:012:12:066:368:49
6:29
#2673
21M
21.00 mi12:20:482:18:536:376:47
6:47
#2550
35K
21.75 mi12:25:362:23:416:364:48
6:25
#2505
23M
23.00 mi12:33:492:31:546:368:13
6:34
#2416
24M
24.00 mi12:40:122:38:176:366:23
6:23
#2363
40K
24.85 mi12:45:432:43:486:355:31
6:27
#2300
25.2M
25.20 mi12:48:042:46:096:362:21
6:49
#2272
Finish
26.22 mi12:54:212:52:266:356:17
6:10
#2188
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi4722439243922868(Top 11%)2740(Top 18%)2740(Top 122%)
10K6.21 mi3.10 mi4076+6463831+5613831+5613582(Top 13%)3382(Top 22%)3382(Top 150%)
15K9.32 mi3.11 mi3589+4873391+4403391+4402868(Top 11%)2740(Top 18%)2740(Top 122%)
20K12.43 mi3.11 mi3324+2653159+2323159+2322667(Top 10%)2550(Top 17%)2550(Top 113%)
Half13.11 mi0.68 mi3295+293133+263133+263021(Top 11%)2886(Top 19%)2886(Top 128%)
25K15.53 mi2.42 mi3132+1632983+1502983+1502543(Top 10%)2433(Top 16%)2433(Top 108%)
30K18.64 mi3.11 mi2814+3182690+2932690+2931893(Top 7%)1812(Top 12%)1812(Top 80%)
20M20.00 mi1.36 mi2673+1412554+1362554+1361416(Top 5%)1351(Top 9%)1351(Top 60%)
21M21.00 mi1.00 mi2550+1232441+1132441+1131371(Top 5%)1308(Top 9%)1308(Top 58%)
35K21.75 mi0.75 mi2505+452397+442397+442033(Top 8%)1931(Top 13%)1931(Top 86%)
23M23.00 mi1.25 mi2416+892312+852312+851660(Top 6%)1578(Top 10%)1578(Top 70%)
24M24.00 mi1.00 mi2363+532262+502262+501634(Top 6%)1547(Top 10%)1547(Top 69%)
40K24.85 mi0.85 mi2300+632201+612201+611398(Top 5%)1321(Top 9%)1321(Top 59%)
25.2M25.20 mi0.35 mi2272+282176+252176+251223(Top 5%)1162(Top 8%)1162(Top 52%)
Finish26.22 mi1.02 mi2188+842097+792097+791181(Top 4%)1125(Top 7%)1125(Top 50%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21story building
+97ft-345ft

Overall

2868

Males

2740

M45-49

2740

5K→10K

3.1 - 6.2 mi

Top 13%
×5story building
+79ft-138ft

Overall

3582

Males

3382

M45-49

3382

10K→15K

6.2 - 9.3 mi

Top 11%
×3story building
+67ft-78ft

Overall

2868

Males

2740

M45-49

2740

15K→20K

9.3 - 12.4 mi

Top 10%
×5story building
+106ft-86ft

Overall

2667

Males

2550

M45-49

2550

20K→Half

12.4 - 13.1 mi

Top 11%
×2story building
+19ft-37ft

Overall

3021

Males

2886

M45-49

2886

Half→25K

13.1 - 15.5 mi

Top 10%
×4story building
+66ft-88ft

Overall

2543

Males

2433

M45-49

2433

25K→30K

15.5 - 18.6 mi

Top 7%
×9story building
+181ft-148ft

Overall

1893

Males

1812

M45-49

1812

30K→20M

18.6 - 20.0 mi

Top 5%
×5story building
+64ft-50ft

Overall

1416

Males

1351

M45-49

1351

20M→21M

20.0 - 21.0 mi

Top 5%
×8story building
+106ft-24ft

Overall

1371

Males

1308

M45-49

1308

21M→35K

21.0 - 21.8 mi

Top 8%
×7story building
+17ft-86ft

Overall

2033

Males

1931

M45-49

1931

35K→23M

21.8 - 23.0 mi

Top 6%
×5story building
+23ft-63ft

Overall

1660

Males

1578

M45-49

1578

23M→24M

23.0 - 24.0 mi

Top 6%
×6story building
+12ft-82ft

Overall

1634

Males

1547

M45-49

1547

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1398

Males

1321

M45-49

1321

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1223

Males

1162

M45-49

1162

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2story building
+22ft-21ft

Overall

1181

Males

1125

M45-49

1125

Passing Analysis

Category:
Athletes Passed
2604
Passed By
70
Net Change
+2534
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4722
5K → 10K67529+646#4722#4076
10K → 15K4958+487#4076#3589
15K → 20K2694+265#3589#3324
20K → Half389+29#3324#3295
Half → 25K1696+163#3295#3132
25K → 30K3191+318#3132#2814
30K → 20M1410+141#2814#2673
20M → 21M1230+123#2673#2550
21M → 35K472+45#2550#2505
35K → 23M901+89#2505#2416
23M → 24M574+53#2416#2363
24M → 40K663+63#2363#2300
40K → 25.2M302+28#2300#2272
25.2M → Finish851+84#2272#2188
TOTALS260470+2534
📊

Passing Visuals

Category:
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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