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BOSTON MARATHON 2023

Charles Castonguay

Bib: 428•M

QC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 1%
Gender (Male)
#0 / 15176
Top 2%
Division (M18-39)
#0 / 5285
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:24
Rank: #188
Start → 5K
17:24 | 5:36/mi
10K· 6.21 mi
35:04
Rank: #233 (-45)
5K → 10K
17:40 | 5:41/mi
15K· 9.32 mi
52:55
Rank: #252 (-19)
10K → 15K
17:51 | 5:45/mi
20K· 12.43 mi
1:10:54
Rank: #263 (-11)
15K → 20K
17:59 | 5:47/mi
Half· 13.11 mi
1:14:48
Rank: #263
20K → Half
3:54 | 5:43/mi
25K· 15.53 mi
1:29:05
Rank: #285 (-22)
Half → 25K
14:17 | 5:53/mi
30K· 18.64 mi
1:48:23
Rank: #322 (-37)
25K → 30K
19:18 | 6:13/mi
20M
1:57:00
Rank: #338 (-16)
30K → 20M
8:37 | 6:20/mi
21M
2:03:45
Rank: #361 (-23)
20M → 21M
6:45 | 6:45/mi
35K· 21.75 mi
2:08:02
Rank: #352 (+9)
21M → 35K
4:17 | 5:44/mi
23M
2:15:38
Rank: #345 (+7)
35K → 23M
7:36 | 6:04/mi
24M
2:21:34
Rank: #344 (+1)
23M → 24M
5:56 | 5:56/mi
40K· 24.85 mi
2:26:45
Rank: #340 (+4)
24M → 40K
5:11 | 6:04/mi
25.2M
2:29:01
Rank: #338 (+2)
40K → 25.2M
2:16 | 6:34/mi
Finish· 26.22 mi
2:35:08
Rank: #329 (+9)
25.2M → Finish
6:07 | 6:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:14:48
Pace5:42 /mi
2nd Half
Distance13.11 mi
Time1:20:20
Pace6:08 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:3317:245:3617:24
5:36
-
10K
6.21 mi10:35:1335:045:3917:40
5:41
+0:05
15K
9.32 mi10:53:0452:555:4117:51
5:45
+0:04
20K
12.43 mi11:11:031:10:545:4217:59
5:47
+0:02
Half
13.11 mi11:14:571:14:485:423:54
5:43
-0:04
25K
15.53 mi11:29:141:29:055:4414:17
5:53
+0:10
30K
18.64 mi11:48:321:48:235:4919:18
6:13
+0:20
20M
20.00 mi11:57:091:57:005:518:37
6:20
+0:07
21M
21.00 mi12:03:542:03:455:546:45
6:45
+0:25
35K
21.75 mi12:08:112:08:025:534:17
5:44
-1:01
23M
23.00 mi12:15:472:15:385:547:36
6:04
+0:20
24M
24.00 mi12:21:432:21:345:545:56
5:56
-0:08
40K
24.85 mi12:26:542:26:455:545:11
6:04
+0:08
25.2M
25.20 mi12:29:102:29:015:552:16
6:34
+0:30
Finish
26.22 mi12:35:172:35:085:556:07
6:00
-0:34

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

5:36 /mi

Average Pace

5:55 /mi

Slowest Pace

6:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:06

39% of race

Time at Steady Pace

57:06

37% of race

Time at Slower Pace

36:56

24% of race

Average Pace: 5:55 /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 mi10:17:3317:245:3617:24
5:36
#188
10K
6.21 mi10:35:1335:045:3917:40
5:41
#233
15K
9.32 mi10:53:0452:555:4117:51
5:45
#252
20K
12.43 mi11:11:031:10:545:4217:59
5:47
#263
Half
13.11 mi11:14:571:14:485:423:54
5:43
#263
25K
15.53 mi11:29:141:29:055:4414:17
5:53
#285
30K
18.64 mi11:48:321:48:235:4919:18
6:13
#322
20M
20.00 mi11:57:091:57:005:518:37
6:20
#338
21M
21.00 mi12:03:542:03:455:546:45
6:45
#361
35K
21.75 mi12:08:112:08:025:534:17
5:44
#352
23M
23.00 mi12:15:472:15:385:547:36
6:04
#345
24M
24.00 mi12:21:432:21:345:545:56
5:56
#344
40K
24.85 mi12:26:542:26:455:545:11
6:04
#340
25.2M
25.20 mi12:29:102:29:015:552:16
6:34
#338
Finish
26.22 mi12:35:172:35:085:556:07
6:00
#329
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi188188188318(Top 1%)285(Top 2%)285(Top 5%)
10K6.21 mi3.10 mi233-45206-18206-18286(Top 1%)256(Top 2%)256(Top 5%)
15K9.32 mi3.11 mi252-19225-19225-19318(Top 1%)285(Top 2%)285(Top 5%)
20K12.43 mi3.11 mi263-11235-10235-10293(Top 1%)265(Top 2%)265(Top 5%)
Half13.11 mi0.68 mi263235235295(Top 1%)271(Top 2%)271(Top 5%)
25K15.53 mi2.42 mi285-22257-22257-22376(Top 1%)348(Top 2%)348(Top 7%)
30K18.64 mi3.11 mi322-37290-33290-33702(Top 3%)665(Top 4%)665(Top 13%)
20M20.00 mi1.36 mi338-16306-16306-16954(Top 4%)911(Top 6%)911(Top 17%)
21M21.00 mi1.00 mi361-23329-23329-231237(Top 5%)1179(Top 8%)1179(Top 22%)
35K21.75 mi0.75 mi352+9321+8321+8263(Top 1.0%)238(Top 2%)238(Top 5%)
23M23.00 mi1.25 mi345+7314+7314+7397(Top 1%)369(Top 2%)369(Top 7%)
24M24.00 mi1.00 mi344+1313+1313+1425(Top 2%)398(Top 3%)398(Top 8%)
40K24.85 mi0.85 mi340+4308+5308+5414(Top 2%)387(Top 3%)387(Top 7%)
25.2M25.20 mi0.35 mi338+2306+2306+2592(Top 2%)559(Top 4%)559(Top 11%)
Finish26.22 mi1.02 mi329+9298+8298+8720(Top 3%)688(Top 5%)688(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21stories
+97ft-345ft

Overall

318

Males

285

M18-39

285

5K→10K

3.1 - 6.2 mi

Top 1%
×5stories
+79ft-138ft

Overall

286

Males

256

M18-39

256

10K→15K

6.2 - 9.3 mi

Top 1%
×3stories
+67ft-78ft

Overall

318

Males

285

M18-39

285

15K→20K

9.3 - 12.4 mi

Top 1%
×5stories
+106ft-86ft

Overall

293

Males

265

M18-39

265

20K→Half

12.4 - 13.1 mi

Top 1%
×2stories
+19ft-37ft

Overall

295

Males

271

M18-39

271

Half→25K

13.1 - 15.5 mi

Top 1%
×4stories
+66ft-88ft

Overall

376

Males

348

M18-39

348

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

702

Males

665

M18-39

665

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

954

Males

911

M18-39

911

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1237

Males

1179

M18-39

1179

21M→35K

21.0 - 21.8 mi

Top 1.0%
×7stories
+17ft-86ft

Overall

263

Males

238

M18-39

238

35K→23M

21.8 - 23.0 mi

Top 1%
×5stories
+23ft-63ft

Overall

397

Males

369

M18-39

369

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

425

Males

398

M18-39

398

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

414

Males

387

M18-39

387

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

592

Males

559

M18-39

559

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

720

Males

688

M18-39

688

Passing Analysis

Category:
Athletes Passed
80
Passed By
221
Net Change
-141
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#188
5K → 10K550-45#188#233
10K → 15K322-19#233#252
15K → 20K516-11#252#263
20K → Half110#263#263
Half → 25K426-22#263#285
25K → 30K542-37#285#322
30K → 20M218-16#322#338
20M → 21M326-23#338#361
21M → 35K90+9#361#352
35K → 23M147+7#352#345
23M → 24M87+1#345#344
24M → 40K73+4#344#340
40K → 25.2M20+2#340#338
25.2M → Finish123+9#338#329
TOTALS80221-141
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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