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BOSTON MARATHON 2023

Sylvain Vaillancourt

Bib: 1832•M

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 9%
Masters (Masters Men)
#0 / 9891
Top 3%
Division (M40-44)
#0 / 2241
Top 8%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:26
Rank: #1280
Start → 5K
19:26 | 6:15/mi
10K· 6.21 mi
38:55
Rank: #1424 (-144)
5K → 10K
19:29 | 6:16/mi
15K· 9.32 mi
58:31
Rank: #1484 (-60)
10K → 15K
19:36 | 6:19/mi
20K· 12.43 mi
1:18:14
Rank: #1499 (-15)
15K → 20K
19:43 | 6:21/mi
Half· 13.11 mi
1:22:32
Rank: #1516 (-17)
20K → Half
4:18 | 6:18/mi
25K· 15.53 mi
1:37:45
Rank: #1441 (+75)
Half → 25K
15:13 | 6:17/mi
30K· 18.64 mi
1:57:49
Rank: #1419 (+22)
25K → 30K
20:04 | 6:28/mi
20M
2:06:49
Rank: #1443 (-24)
30K → 20M
9:00 | 6:37/mi
21M
2:13:48
Rank: #1464 (-21)
20M → 21M
6:59 | 6:59/mi
35K· 21.75 mi
2:18:20
Rank: #1423 (+41)
21M → 35K
4:32 | 6:04/mi
23M
2:26:38
Rank: #1432 (-9)
35K → 23M
8:18 | 6:38/mi
24M
2:33:01
Rank: #1418 (+14)
23M → 24M
6:23 | 6:23/mi
40K· 24.85 mi
2:38:43
Rank: #1425 (-7)
24M → 40K
5:42 | 6:40/mi
25.2M
2:41:13
Rank: #1438 (-13)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:48:01
Rank: #1476 (-38)
25.2M → Finish
6:48 | 6:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:32
Pace6:18 /mi
2nd Half
Distance13.11 mi
Time1:25:29
Pace6:31 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:5019:266:1519:26
6:15
-
10K
6.21 mi10:39:1938:556:1619:29
6:16
+0:01
15K
9.32 mi10:58:5558:316:1719:36
6:19
+0:03
20K
12.43 mi11:18:381:18:146:1819:43
6:21
+0:02
Half
13.11 mi11:22:561:22:326:184:18
6:18
-0:03
25K
15.53 mi11:38:091:37:456:1815:13
6:17
-0:01
30K
18.64 mi11:58:131:57:496:1920:04
6:28
+0:11
20M
20.00 mi12:07:132:06:496:209:00
6:37
+0:09
21M
21.00 mi12:14:122:13:486:226:59
6:59
+0:22
35K
21.75 mi12:18:442:18:206:224:32
6:04
-0:55
23M
23.00 mi12:27:022:26:386:238:18
6:38
+0:34
24M
24.00 mi12:33:252:33:016:236:23
6:23
-0:15
40K
24.85 mi12:39:072:38:436:235:42
6:40
+0:17
25.2M
25.20 mi12:41:372:41:136:242:30
7:15
+0:35
Finish
26.22 mi12:48:252:48:016:256:48
6:40
-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

6:04 /mi

Average Pace

6:25 /mi

Slowest Pace

7:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:38:32

94% of race

Time at Steady Pace

6:59

4% of race

Time at Slower Pace

2:30

1% of race

Average Pace: 6:24 /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 mi10:19:5019:266:1519:26
6:15
#1280
10K
6.21 mi10:39:1938:556:1619:29
6:16
#1424
15K
9.32 mi10:58:5558:316:1719:36
6:19
#1484
20K
12.43 mi11:18:381:18:146:1819:43
6:21
#1499
Half
13.11 mi11:22:561:22:326:184:18
6:18
#1516
25K
15.53 mi11:38:091:37:456:1815:13
6:17
#1441
30K
18.64 mi11:58:131:57:496:1920:04
6:28
#1419
20M
20.00 mi12:07:132:06:496:209:00
6:37
#1443
21M
21.00 mi12:14:122:13:486:226:59
6:59
#1464
35K
21.75 mi12:18:442:18:206:224:32
6:04
#1423
23M
23.00 mi12:27:022:26:386:238:18
6:38
#1432
24M
24.00 mi12:33:252:33:016:236:23
6:23
#1418
40K
24.85 mi12:39:072:38:436:235:42
6:40
#1425
25.2M
25.20 mi12:41:372:41:136:242:30
7:15
#1438
Finish
26.22 mi12:48:252:48:016:256:48
6:40
#1476
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1280121412141686(Top 6%)1612(Top 11%)1612(Top 72%)
10K6.21 mi3.10 mi1424-1441358-1441358-1441637(Top 6%)1563(Top 10%)1563(Top 70%)
15K9.32 mi3.11 mi1484-601415-571415-571686(Top 6%)1612(Top 11%)1612(Top 72%)
20K12.43 mi3.11 mi1499-151431-161431-161590(Top 6%)1520(Top 10%)1520(Top 68%)
Half13.11 mi0.68 mi1516-171447-161447-161761(Top 7%)1690(Top 11%)1690(Top 75%)
25K15.53 mi2.42 mi1441+751377+701377+701253(Top 5%)1197(Top 8%)1197(Top 53%)
30K18.64 mi3.11 mi1419+221355+221355+221403(Top 5%)1343(Top 9%)1343(Top 60%)
20M20.00 mi1.36 mi1443-241379-241379-241940(Top 7%)1850(Top 12%)1850(Top 83%)
21M21.00 mi1.00 mi1464-211399-201399-202053(Top 8%)1939(Top 13%)1939(Top 87%)
35K21.75 mi0.75 mi1423+411359+401359+40842(Top 3%)799(Top 5%)799(Top 36%)
23M23.00 mi1.25 mi1432-91366-71366-71874(Top 7%)1776(Top 12%)1776(Top 79%)
24M24.00 mi1.00 mi1418+141353+131353+131611(Top 6%)1524(Top 10%)1524(Top 68%)
40K24.85 mi0.85 mi1425-71359-61359-62165(Top 8%)2016(Top 13%)2016(Top 90%)
25.2M25.20 mi0.35 mi1438-131372-131372-132644(Top 10%)2430(Top 16%)2430(Top 108%)
Finish26.22 mi1.02 mi1476-381409-371409-373322(Top 12%)2980(Top 20%)2980(Top 133%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1686

Males

1612

M40-44

1612

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1637

Males

1563

M40-44

1563

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1686

Males

1612

M40-44

1612

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1590

Males

1520

M40-44

1520

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1761

Males

1690

M40-44

1690

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1253

Males

1197

M40-44

1197

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1403

Males

1343

M40-44

1343

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1940

Males

1850

M40-44

1850

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2053

Males

1939

M40-44

1939

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

842

Males

799

M40-44

799

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1874

Males

1776

M40-44

1776

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1611

Males

1524

M40-44

1524

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2165

Males

2016

M40-44

2016

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2644

Males

2430

M40-44

2430

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3322

Males

2980

M40-44

2980

Passing Analysis

Category:
Athletes Passed
407
Passed By
603
Net Change
-196
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1280
5K → 10K34178-144#1280#1424
10K → 15K2787-60#1424#1484
15K → 20K4055-15#1484#1499
20K → Half320-17#1499#1516
Half → 25K8510+75#1516#1441
25K → 30K5937+22#1441#1419
30K → 20M1337-24#1419#1443
20M → 21M1839-21#1443#1464
21M → 35K432+41#1464#1423
35K → 23M2332-9#1423#1432
23M → 24M2511+14#1432#1418
24M → 40K2027-7#1418#1425
40K → 25.2M316-13#1425#1438
25.2M → Finish1452-38#1438#1476
TOTALS407603-196
📊

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