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BOSTON MARATHON 2023

Ron Seguin

Bib: 9398•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 44%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 48%
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:29
Rank: #5695
Start → 5K
21:29 | 6:55/mi
10K· 6.21 mi
42:32
Rank: #5381 (+314)
5K → 10K
21:03 | 6:47/mi
15K· 9.32 mi
1:03:51
Rank: #5483 (-102)
10K → 15K
21:19 | 6:52/mi
20K· 12.43 mi
1:25:28
Rank: #5547 (-64)
15K → 20K
21:37 | 6:57/mi
Half· 13.11 mi
1:30:23
Rank: #5685 (-138)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:51:02
Rank: #7047 (-1362)
Half → 25K
20:39 | 8:31/mi
30K· 18.64 mi
2:22:26
Rank: #10296 (-3249)
25K → 30K
31:24 | 10:06/mi
20M
2:34:23
Rank: #10709 (-413)
30K → 20M
11:57 | 8:48/mi
21M
2:45:02
Rank: #11504 (-795)
20M → 21M
10:39 | 10:39/mi
35K· 21.75 mi
2:51:10
Rank: #11591 (-87)
21M → 35K
6:08 | 8:12/mi
23M
3:01:30
Rank: #11566 (+25)
35K → 23M
10:20 | 8:15/mi
24M
3:09:24
Rank: #11517 (+49)
23M → 24M
7:54 | 7:54/mi
40K· 24.85 mi
3:16:23
Rank: #11495 (+22)
24M → 40K
6:59 | 8:10/mi
25.2M
3:19:55
Rank: #11649 (-154)
40K → 25.2M
3:32 | 10:15/mi
Finish· 26.22 mi
3:28:08
Rank: #11665 (-16)
25.2M → Finish
8:13 | 8:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:23
Pace6:54 /mi
2nd Half
Distance13.11 mi
Time1:57:45
Pace8:59 /mi
📊Positive Split: 30.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:2221:296:5521:29
6:55
-
10K
6.21 mi11:08:2542:326:5121:03
6:47
-0:08
15K
9.32 mi11:29:441:03:516:5121:19
6:52
+0:05
20K
12.43 mi11:51:211:25:286:5321:37
6:57
+0:05
Half
13.11 mi11:56:161:30:236:544:55
7:12
+0:15
25K
15.53 mi12:16:551:51:027:0920:39
8:31
+1:19
30K
18.64 mi12:48:192:22:267:3831:24
10:06
+1:35
20M
20.00 mi13:00:162:34:237:4311:57
8:48
-1:18
21M
21.00 mi13:10:552:45:027:5210:39
10:39
+1:51
35K
21.75 mi13:17:032:51:107:526:08
8:12
-2:27
23M
23.00 mi13:27:233:01:307:5310:20
8:15
+0:03
24M
24.00 mi13:35:173:09:247:547:54
7:54
-0:21
40K
24.85 mi13:42:163:16:237:546:59
8:10
+0:16
25.2M
25.20 mi13:45:483:19:557:563:32
10:15
+2:05
Finish
26.22 mi13:54:013:28:087:578:13
8:04
-2:11

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

6:47 /mi

Average Pace

7:57 /mi

Slowest Pace

10:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:30:23

43% of race

Time at Steady Pace

1:00:13

29% of race

Time at Slower Pace

57:32

28% of race

Average Pace: 7:56 /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 mi10:47:2221:296:5521:29
6:55
#5695
10K
6.21 mi11:08:2542:326:5121:03
6:47
#5381
15K
9.32 mi11:29:441:03:516:5121:19
6:52
#5483
20K
12.43 mi11:51:211:25:286:5321:37
6:57
#5547
Half
13.11 mi11:56:161:30:236:544:55
7:12
#5685
25K
15.53 mi12:16:551:51:027:0920:39
8:31
#7047
30K
18.64 mi12:48:192:22:267:3831:24
10:06
#10296
20M
20.00 mi13:00:162:34:237:4311:57
8:48
#10709
21M
21.00 mi13:10:552:45:027:5210:39
10:39
#11504
35K
21.75 mi13:17:032:51:107:526:08
8:12
#11591
23M
23.00 mi13:27:233:01:307:5310:20
8:15
#11566
24M
24.00 mi13:35:173:09:247:547:54
7:54
#11517
40K
24.85 mi13:42:163:16:237:546:59
8:10
#11495
25.2M
25.20 mi13:45:483:19:557:563:32
10:15
#11649
Finish
26.22 mi13:54:013:28:087:578:13
8:04
#11665
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi5695523952395675(Top 21%)5212(Top 34%)5212(Top 231%)
10K6.21 mi3.10 mi5381+3144971+2684971+2685072(Top 19%)4695(Top 31%)4695(Top 208%)
15K9.32 mi3.11 mi5483-1025064-935064-935675(Top 21%)5212(Top 34%)5212(Top 231%)
20K12.43 mi3.11 mi5547-645116-525116-525718(Top 21%)5245(Top 35%)5245(Top 233%)
Half13.11 mi0.68 mi5685-1385237-1215237-1217929(Top 30%)6877(Top 45%)6877(Top 305%)
25K15.53 mi2.42 mi7047-13626271-10346271-103416280(Top 61%)10653(Top 70%)10653(Top 473%)
30K18.64 mi3.11 mi10296-32498229-19588229-195821295(Top 80%)12759(Top 84%)12759(Top 567%)
20M20.00 mi1.36 mi10709-4138407-1788407-17815365(Top 58%)10142(Top 67%)10142(Top 450%)
21M21.00 mi1.00 mi11504-7958757-3508757-35019994(Top 75%)12041(Top 79%)12041(Top 535%)
35K21.75 mi0.75 mi11591-878776-198776-1913363(Top 50%)9138(Top 60%)9138(Top 406%)
23M23.00 mi1.25 mi11566+258746+308746+3011539(Top 43%)8254(Top 54%)8254(Top 367%)
24M24.00 mi1.00 mi11517+498700+468700+4610511(Top 39%)7666(Top 51%)7666(Top 340%)
40K24.85 mi0.85 mi11495+228669+318669+3111118(Top 42%)7894(Top 52%)7894(Top 351%)
25.2M25.20 mi0.35 mi11649-1548731-628731-6218215(Top 68%)11110(Top 73%)11110(Top 493%)
Finish26.22 mi1.02 mi11665-168708+238708+2312531(Top 47%)8538(Top 56%)8538(Top 379%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5675

Males

5212

M45-49

5212

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5072

Males

4695

M45-49

4695

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5675

Males

5212

M45-49

5212

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5718

Males

5245

M45-49

5245

20K→Half

12.4 - 13.1 mi

Top 30%
×2stories
+19ft-37ft

Overall

7929

Males

6877

M45-49

6877

Half→25K

13.1 - 15.5 mi

Top 61%
×4stories
+66ft-88ft

Overall

16280

Males

10653

M45-49

10653

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

21295

Males

12759

M45-49

12759

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

15365

Males

10142

M45-49

10142

20M→21M

20.0 - 21.0 mi

Top 75%
×8stories
+106ft-24ft

Overall

19994

Males

12041

M45-49

12041

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

13363

Males

9138

M45-49

9138

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

11539

Males

8254

M45-49

8254

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

10511

Males

7666

M45-49

7666

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11118

Males

7894

M45-49

7894

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

18215

Males

11110

M45-49

11110

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

12531

Males

8538

M45-49

8538

Passing Analysis

Category:
Athletes Passed
977*
Passed By
6945
Net Change
-5970
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5695
5K → 10K39076+314#5695#5381
10K → 15K90192-102#5381#5483
15K → 20K78142-64#5483#5547
20K → Half2140-138#5547#5685
Half → 25K31365-1362#5685#7047
25K → 30K23249-3249#7047#10296
30K → 20M18*431-413#10296#10709
20M → 21M6801-795#10709#11504
21M → 35K29116-87#11504#11591
35K → 23M11287+25#11591#11566
23M → 24M8940+49#11566#11517
24M → 40K7856+22#11517#11495
40K → 25.2M6160-154#11495#11649
25.2M → Finish7490-16#11649#11665
TOTALS977*6945-5970

* 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