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BOSTON MARATHON 2023

Sebastien Roy

Bib: 11335•M

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 40%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 44%
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:33/mi
23:27
↑ 97↓ 3451.5%
10K· 6.21 mi
7:30/mi
46:46
↑ 79↓ 1380.4%
15K· 9.32 mi
7:35/mi
1:10:21
↑ 67↓ 78
20K· 12.43 mi
7:42/mi
1:34:16
↑ 106↓ 860.1%
Half· 13.11 mi
7:34/mi
1:39:26
↑ 19↓ 370.5%
25K· 15.53 mi
7:51/mi
1:58:27
↑ 66↓ 880.2%
30K· 18.64 mi
8:11/mi
2:23:53
↑ 181↓ 1480.2%
20M
8:13/mi
2:35:03
↑ 64↓ 500.2%
21M
8:41/mi
2:43:44
↑ 106↓ 241.6%
35K· 21.75 mi
7:59/mi
2:49:42
↑ 17↓ 861.7%
23M
8:10/mi
2:59:56
↑ 23↓ 630.6%
24M
7:51/mi
3:07:47
↓ 821.3%
40K· 24.85 mi
8:00/mi
3:14:37
↓ 200.3%
25.2M
8:27/mi
3:17:32
↑ 13↓ 160.2%
Finish· 26.22 mi
7:32/mi
3:25:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:26
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:45:47
Pace8:04 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:1823:277:3323:27
7:33
-
10K
6.21 mi11:13:3746:467:3223:19
7:30
-0:03
15K
9.32 mi11:37:121:10:217:3323:35
7:35
+0:05
20K
12.43 mi12:01:071:34:167:3523:55
7:42
+0:07
Half
13.11 mi12:06:171:39:267:355:10
7:34
-0:08
25K
15.53 mi12:25:181:58:277:3819:01
7:51
+0:17
30K
18.64 mi12:50:442:23:537:4325:26
8:11
+0:20
20M
20.00 mi13:01:542:35:037:4511:10
8:13
+0:02
21M
21.00 mi13:10:352:43:447:488:41
8:41
+0:28
35K
21.75 mi13:16:332:49:427:485:58
7:59
-0:42
23M
23.00 mi13:26:472:59:567:4910:14
8:10
+0:11
24M
24.00 mi13:34:383:07:477:497:51
7:51
-0:19
40K
24.85 mi13:41:283:14:377:506:50
8:00
+0:09
25.2M
25.20 mi13:44:233:17:327:502:55
8:27
+0:27
Finish
26.22 mi13:52:043:25:137:507:41
7:32
-0:55

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

7:30 /mi

Average Pace

7:50 /mi

Slowest Pace

8:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:37

94% of race

Time at Steady Pace

11:36

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:50 /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 mi10:50:1823:277:3323:27
7:33
#10051
10K
6.21 mi11:13:3746:467:3223:19
7:30
#10278
15K
9.32 mi11:37:121:10:217:3323:35
7:35
#10479
20K
12.43 mi12:01:071:34:167:3523:55
7:42
#10573
Half
13.11 mi12:06:171:39:267:355:10
7:34
#10584
25K
15.53 mi12:25:181:58:277:3819:01
7:51
#10689
30K
18.64 mi12:50:442:23:537:4325:26
8:11
#10905
20M
20.00 mi13:01:542:35:037:4511:10
8:13
#10951
21M
21.00 mi13:10:352:43:447:488:41
8:41
#10972
35K
21.75 mi13:16:332:49:427:485:58
7:59
#10997
23M
23.00 mi13:26:472:59:567:4910:14
8:10
#10969
24M
24.00 mi13:34:383:07:477:497:51
7:51
#10922
40K
24.85 mi13:41:283:14:377:506:50
8:00
#10874
25.2M
25.20 mi13:44:233:17:327:502:55
8:27
#10840
Finish
26.22 mi13:52:043:25:137:507:41
7:32
#10725
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi100518155815510924(Top 41%)8613(Top 57%)8613(Top 382%)
10K6.21 mi3.10 mi10278-2278301-1468301-14610479(Top 39%)8425(Top 56%)8425(Top 374%)
15K9.32 mi3.11 mi10479-2018412-1118412-11110924(Top 41%)8613(Top 57%)8613(Top 382%)
20K12.43 mi3.11 mi10573-948448-368448-3610894(Top 41%)8521(Top 56%)8521(Top 378%)
Half13.11 mi0.68 mi10584-118458-108458-1010770(Top 40%)8496(Top 56%)8496(Top 377%)
25K15.53 mi2.42 mi10689-1058481-238481-2311428(Top 43%)8676(Top 57%)8676(Top 385%)
30K18.64 mi3.11 mi10905-2168539-588539-5812233(Top 46%)8896(Top 59%)8896(Top 395%)
20M20.00 mi1.36 mi10951-468526+138526+1311788(Top 44%)8615(Top 57%)8615(Top 383%)
21M21.00 mi1.00 mi10972-218510+168510+1611538(Top 43%)8357(Top 55%)8357(Top 371%)
35K21.75 mi0.75 mi10997-258508+28508+211900(Top 45%)8511(Top 56%)8511(Top 378%)
23M23.00 mi1.25 mi10969+288474+348474+3410971(Top 41%)7952(Top 52%)7952(Top 353%)
24M24.00 mi1.00 mi10922+478421+538421+5310136(Top 38%)7470(Top 49%)7470(Top 332%)
40K24.85 mi0.85 mi10874+488368+538368+539978(Top 37%)7329(Top 48%)7329(Top 325%)
25.2M25.20 mi0.35 mi10840+348335+338335+339220(Top 35%)6880(Top 45%)6880(Top 306%)
Finish26.22 mi1.02 mi10725+1158252+838252+838831(Top 33%)6659(Top 44%)6659(Top 296%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

10924

Males

8613

M45-49

8613

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10479

Males

8425

M45-49

8425

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

10924

Males

8613

M45-49

8613

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

10894

Males

8521

M45-49

8521

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

10770

Males

8496

M45-49

8496

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

11428

Males

8676

M45-49

8676

25K→30K

15.5 - 18.6 mi

Top 46%
×9story building
+181ft-148ft

Overall

12233

Males

8896

M45-49

8896

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

11788

Males

8615

M45-49

8615

20M→21M

20.0 - 21.0 mi

Top 43%
×8story building
+106ft-24ft

Overall

11538

Males

8357

M45-49

8357

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

11900

Males

8511

M45-49

8511

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

10971

Males

7952

M45-49

7952

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

10136

Males

7470

M45-49

7470

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9978

Males

7329

M45-49

7329

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9220

Males

6880

M45-49

6880

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

8831

Males

6659

M45-49

6659

Passing Analysis

Category:
Athletes Passed
1339*
Passed By
2013
Net Change
-674
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10051
5K → 10K212439-227#10051#10278
10K → 15K121322-201#10278#10479
15K → 20K120214-94#10479#10573
20K → Half3142-11#10573#10584
Half → 25K87192-105#10584#10689
25K → 30K123339-216#10689#10905
30K → 20M67*113-46#10905#10951
20M → 21M7192-21#10951#10972
21M → 35K4166-25#10972#10997
35K → 23M10173+28#10997#10969
23M → 24M9346+47#10969#10922
24M → 40K8133+48#10922#10874
40K → 25.2M5117+34#10874#10840
25.2M → Finish14025+115#10840#10725
TOTALS1339*2013-674

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

📊

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