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BOSTON MARATHON 2023

David Caron

Bib: 10310•M

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 31%
Gender (Male)
#0 / 15176
Top 46%
Masters (Masters Men)
#0 / 9891
Top 33%
Division (M45-49)
#0 / 2252
Top 45%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:03
Rank: #8963
Start → 5K
23:03 | 7:25/mi
10K· 6.21 mi
46:15
Rank: #9519 (-556)
5K → 10K
23:12 | 7:28/mi
15K· 9.32 mi
1:09:18
Rank: #9474 (+45)
10K → 15K
23:03 | 7:25/mi
20K· 12.43 mi
1:34:04
Rank: #10421 (-947)
15K → 20K
24:46 | 7:58/mi
Half· 13.11 mi
1:39:10
Rank: #10403 (+18)
20K → Half
5:06 | 7:29/mi
25K· 15.53 mi
1:57:17
Rank: #10040 (+363)
Half → 25K
18:07 | 7:28/mi
30K· 18.64 mi
2:20:23
Rank: #9402 (+638)
25K → 30K
23:06 | 7:26/mi
20M
2:30:26
Rank: #9114 (+288)
30K → 20M
10:03 | 7:24/mi
21M
2:38:07
Rank: #8877 (+237)
20M → 21M
7:41 | 7:41/mi
35K· 21.75 mi
2:43:39
Rank: #8830 (+47)
21M → 35K
5:32 | 7:24/mi
23M
2:53:06
Rank: #8670 (+160)
35K → 23M
9:27 | 7:33/mi
24M
3:00:29
Rank: #8554 (+116)
23M → 24M
7:23 | 7:23/mi
40K· 24.85 mi
3:06:56
Rank: #8475 (+79)
24M → 40K
6:27 | 7:33/mi
25.2M
3:09:40
Rank: #8418 (+57)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:16:59
Rank: #8288 (+130)
25.2M → Finish
7:19 | 7:11/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:39:10
Pace7:34 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:37:49
Pace7:28 /mi
📊Negative Split: 1.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:4223:037:2523:03
7:25
-
10K
6.21 mi11:12:5446:157:2723:12
7:28
+0:03
15K
9.32 mi11:35:571:09:187:2623:03
7:25
-0:03
20K
12.43 mi12:00:431:34:047:3424:46
7:58
+0:33
Half
13.11 mi12:05:491:39:107:345:06
7:29
-0:29
25K
15.53 mi12:23:561:57:177:3318:07
7:28
-0:01
30K
18.64 mi12:47:022:20:237:3223:06
7:26
-0:02
20M
20.00 mi12:57:052:30:267:3110:03
7:24
-0:02
21M
21.00 mi13:04:462:38:077:327:41
7:41
+0:17
35K
21.75 mi13:10:182:43:397:315:32
7:24
-0:17
23M
23.00 mi13:19:452:53:067:329:27
7:33
+0:09
24M
24.00 mi13:27:083:00:297:317:23
7:23
-0:10
40K
24.85 mi13:33:353:06:567:316:27
7:33
+0:10
25.2M
25.20 mi13:36:193:09:407:322:44
7:56
+0:23
Finish
26.22 mi13:43:383:16:597:317:19
7:11
-0:45

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

7:11 /mi

Average Pace

7:31 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:29

86% of race

Time at Steady Pace

27:30

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:31 /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 mi10:49:4223:037:2523:03
7:25
#8963
10K
6.21 mi11:12:5446:157:2723:12
7:28
#9519
15K
9.32 mi11:35:571:09:187:2623:03
7:25
#9474
20K
12.43 mi12:00:431:34:047:3424:46
7:58
#10421
Half
13.11 mi12:05:491:39:107:345:06
7:29
#10403
25K
15.53 mi12:23:561:57:177:3318:07
7:28
#10040
30K
18.64 mi12:47:022:20:237:3223:06
7:26
#9402
20M
20.00 mi12:57:052:30:267:3110:03
7:24
#9114
21M
21.00 mi13:04:462:38:077:327:41
7:41
#8877
35K
21.75 mi13:10:182:43:397:315:32
7:24
#8830
23M
23.00 mi13:19:452:53:067:329:27
7:33
#8670
24M
24.00 mi13:27:083:00:297:317:23
7:23
#8554
40K
24.85 mi13:33:353:06:567:316:27
7:33
#8475
25.2M
25.20 mi13:36:193:09:407:322:44
7:56
#8418
Finish
26.22 mi13:43:383:16:597:317:19
7:11
#8288
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi8963757075709488(Top 36%)7857(Top 52%)7857(Top 349%)
10K6.21 mi3.10 mi9519-5567884-3147884-31410186(Top 38%)8263(Top 54%)8263(Top 367%)
15K9.32 mi3.11 mi9474+457855+297855+299488(Top 36%)7857(Top 52%)7857(Top 349%)
20K12.43 mi3.11 mi10421-9478372-5178372-51713180(Top 50%)9515(Top 63%)9515(Top 423%)
Half13.11 mi0.68 mi10403+188358+148358+149935(Top 37%)8045(Top 53%)8045(Top 357%)
25K15.53 mi2.42 mi10040+3638145+2138145+2138563(Top 32%)7180(Top 47%)7180(Top 319%)
30K18.64 mi3.11 mi9402+6387735+4107735+4106807(Top 26%)5938(Top 39%)5938(Top 264%)
20M20.00 mi1.36 mi9114+2887547+1887547+1886175(Top 23%)5427(Top 36%)5427(Top 241%)
21M21.00 mi1.00 mi8877+2377394+1537394+1535542(Top 21%)4868(Top 32%)4868(Top 216%)
35K21.75 mi0.75 mi8830+477353+417353+417752(Top 29%)6348(Top 42%)6348(Top 282%)
23M23.00 mi1.25 mi8670+1607223+1307223+1306720(Top 25%)5651(Top 37%)5651(Top 251%)
24M24.00 mi1.00 mi8554+1167132+917132+916932(Top 26%)5685(Top 37%)5685(Top 252%)
40K24.85 mi0.85 mi8475+797063+697063+696960(Top 26%)5613(Top 37%)5613(Top 249%)
25.2M25.20 mi0.35 mi8418+577015+487015+486081(Top 23%)5012(Top 33%)5012(Top 223%)
Finish26.22 mi1.02 mi8288+1306912+1036912+1036289(Top 24%)5128(Top 34%)5128(Top 228%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

9488

Males

7857

M45-49

7857

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10186

Males

8263

M45-49

8263

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

9488

Males

7857

M45-49

7857

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

13180

Males

9515

M45-49

9515

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

9935

Males

8045

M45-49

8045

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

8563

Males

7180

M45-49

7180

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

6807

Males

5938

M45-49

5938

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6175

Males

5427

M45-49

5427

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

5542

Males

4868

M45-49

4868

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

7752

Males

6348

M45-49

6348

35K→23M

21.8 - 23.0 mi

Top 25%
×5stories
+23ft-63ft

Overall

6720

Males

5651

M45-49

5651

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

6932

Males

5685

M45-49

5685

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6960

Males

5613

M45-49

5613

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6081

Males

5012

M45-49

5012

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2stories
+22ft-21ft

Overall

6289

Males

5128

M45-49

5128

Passing Analysis

Category:
Athletes Passed
2554*
Passed By
1877
Net Change
+675
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8963
5K → 10K94650-556#8963#9519
10K → 15K181136+45#9519#9474
15K → 20K19964-947#9474#10421
20K → Half4123+18#10421#10403
Half → 25K37310+363#10403#10040
25K → 30K639*1+638#10040#9402
30K → 20M2902+288#9402#9114
20M → 21M2381+237#9114#8877
21M → 35K6821+47#8877#8830
35K → 23M1699+160#8830#8670
23M → 24M13620+116#8670#8554
24M → 40K10122+79#8554#8475
40K → 25.2M603+57#8475#8418
25.2M → Finish14515+130#8418#8288
TOTALS2554*1877+675

* 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