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BOSTON MARATHON 2023

Todd Shannon

Bib: 8412•M

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Overall
#0 / 26622
Top 18%
Gender (Male)
#0 / 15176
Top 29%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:39
Rank: #3204
Start → 5K
6:39/mi
20:39 split
10K· 6.21 mi
41:40
Rank: #4043 (-839)
5K → 10K
6:46/mi
21:01 split
15K· 9.32 mi
1:02:45
Rank: #4343 (-300)
10K → 15K
6:47/mi
21:05 split
20K· 12.43 mi
1:23:55
Rank: #4369 (-26)
15K → 20K
6:49/mi
21:10 split
Half· 13.11 mi
1:28:22
Rank: #4272 (+97)
20K → Half
6:31/mi
4:27 split
25K· 15.53 mi
1:44:52
Rank: #4227 (+45)
Half → 25K
6:48/mi
16:30 split
30K· 18.64 mi
2:06:28
Rank: #4160 (+67)
25K → 30K
6:57/mi
21:36 split
20M
2:15:58
Rank: #4145 (+15)
30K → 20M
6:59/mi
9:30 split
21M
2:23:25
Rank: #4138 (+7)
20M → 21M
7:27/mi
7:27 split
35K· 21.75 mi
2:28:33
Rank: #4151 (-13)
21M → 35K
6:52/mi
5:08 split
23M
2:37:31
Rank: #4175 (-24)
35K → 23M
7:10/mi
8:58 split
24M
2:45:06
Rank: #4410 (-235)
23M → 24M
7:35/mi
7:35 split
40K· 24.85 mi
2:51:40
Rank: #4513 (-103)
24M → 40K
7:41/mi
6:34 split
25.2M
2:55:14
Rank: #4717 (-204)
40K → 25.2M
10:21/mi
3:34 split
Finish· 26.22 mi
3:03:07
Rank: #4856 (-139)
25.2M → Finish
7:44/mi
7:53 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:22
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:34:45
Pace7:14 /mi
📊Positive Split: 7.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:4720:396:3920:39
6:39
-
10K
6.21 mi11:06:4841:406:4221:01
6:46
+0:07
15K
9.32 mi11:27:531:02:456:4421:05
6:47
+0:01
20K
12.43 mi11:49:031:23:556:4521:10
6:49
+0:02
Half
13.11 mi11:53:301:28:226:444:27
6:31
-0:18
25K
15.53 mi12:10:001:44:526:4516:30
6:48
+0:17
30K
18.64 mi12:31:362:06:286:4721:36
6:57
+0:09
20M
20.00 mi12:41:062:15:586:489:30
6:59
+0:02
21M
21.00 mi12:48:332:23:256:507:27
7:27
+0:28
35K
21.75 mi12:53:412:28:336:505:08
6:52
-0:35
23M
23.00 mi13:02:392:37:316:518:58
7:10
+0:18
24M
24.00 mi13:10:142:45:066:537:35
7:35
+0:25
40K
24.85 mi13:16:482:51:406:546:34
7:41
+0:06
25.2M
25.20 mi13:20:222:55:146:573:34
10:21
+2:40
Finish
26.22 mi13:28:153:03:076:597:53
7:44
-2:37

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

6:31 /mi

Average Pace

6:59 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:30:04

82% of race

Time at Slower Pace

33:03

18% of race

Average Pace: 6:59 /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 mi10:45:4720:396:3920:39
6:39
#3204
10K
6.21 mi11:06:4841:406:4221:01
6:46
#4043
15K
9.32 mi11:27:531:02:456:4421:05
6:47
#4343
20K
12.43 mi11:49:031:23:556:4521:10
6:49
#4369
Half
13.11 mi11:53:301:28:226:444:27
6:31
#4272
25K
15.53 mi12:10:001:44:526:4516:30
6:48
#4227
30K
18.64 mi12:31:362:06:286:4721:36
6:57
#4160
20M
20.00 mi12:41:062:15:586:489:30
6:59
#4145
21M
21.00 mi12:48:332:23:256:507:27
7:27
#4138
35K
21.75 mi12:53:412:28:336:505:08
6:52
#4151
23M
23.00 mi13:02:392:37:316:518:58
7:10
#4175
24M
24.00 mi13:10:142:45:066:537:35
7:35
#4410
40K
24.85 mi13:16:482:51:406:546:34
7:41
#4513
25.2M
25.20 mi13:20:222:55:146:573:34
10:21
#4717
Finish
26.22 mi13:28:153:03:076:597:53
7:44
#4856
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3204302630264974(Top 19%)4618(Top 30%)4618(Top 87%)
10K6.21 mi3.10 mi4043-8393800-7743800-7744945(Top 19%)4584(Top 30%)4584(Top 87%)
15K9.32 mi3.11 mi4343-3004065-2654065-2654974(Top 19%)4618(Top 30%)4618(Top 87%)
20K12.43 mi3.11 mi4369-264089-244089-244553(Top 17%)4242(Top 28%)4242(Top 80%)
Half13.11 mi0.68 mi4272+974000+894000+892979(Top 11%)2854(Top 19%)2854(Top 54%)
25K15.53 mi2.42 mi4227+453964+363964+364212(Top 16%)3943(Top 26%)3943(Top 75%)
30K18.64 mi3.11 mi4160+673911+533911+534038(Top 15%)3772(Top 25%)3772(Top 71%)
20M20.00 mi1.36 mi4145+153890+213890+213992(Top 15%)3708(Top 24%)3708(Top 70%)
21M21.00 mi1.00 mi4138+73879+113879+114349(Top 16%)3975(Top 26%)3975(Top 75%)
35K21.75 mi0.75 mi4151-133886-73886-74574(Top 17%)4165(Top 27%)4165(Top 79%)
23M23.00 mi1.25 mi4175-243909-233909-234602(Top 17%)4161(Top 27%)4161(Top 79%)
24M24.00 mi1.00 mi4410-2354117-2084117-2088229(Top 31%)6434(Top 42%)6434(Top 122%)
40K24.85 mi0.85 mi4513-1034205-884205-887783(Top 29%)6097(Top 40%)6097(Top 115%)
25.2M25.20 mi0.35 mi4717-2044372-1674372-16718538(Top 70%)11247(Top 74%)11247(Top 213%)
Finish26.22 mi1.02 mi4856-1394476-1044476-10410166(Top 38%)7366(Top 49%)7366(Top 139%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

4974

Males

4618

M18-39

4618

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

4945

Males

4584

M18-39

4584

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

4974

Males

4618

M18-39

4618

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4553

Males

4242

M18-39

4242

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

2979

Males

2854

M18-39

2854

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4212

Males

3943

M18-39

3943

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4038

Males

3772

M18-39

3772

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

3992

Males

3708

M18-39

3708

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4349

Males

3975

M18-39

3975

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4574

Males

4165

M18-39

4165

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4602

Males

4161

M18-39

4161

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8229

Males

6434

M18-39

6434

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7783

Males

6097

M18-39

6097

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18538

Males

11247

M18-39

11247

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10166

Males

7366

M18-39

7366

Passing Analysis

Category:
Athletes Passed
788
Passed By
2440
Net Change
-1652
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3204
5K → 10K20859-839#3204#4043
10K → 15K41341-300#4043#4343
15K → 20K93119-26#4343#4369
20K → Half981+97#4369#4272
Half → 25K11065+45#4272#4227
25K → 30K15083+67#4227#4160
30K → 20M7055+15#4160#4145
20M → 21M7467+7#4145#4138
21M → 35K2841-13#4138#4151
35K → 23M5175-24#4151#4175
23M → 24M12247-235#4175#4410
24M → 40K23126-103#4410#4513
40K → 25.2M1205-204#4513#4717
25.2M → Finish17156-139#4717#4856
TOTALS7882440-1652
📊

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