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BOSTON MARATHON 2023

James Cormie

Bib: 8455•M

CT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 16%
Gender (Male)
#0 / 15176
Top 26%
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
20:50
Rank: #3725
Start → 5K
20:50 | 6:42/mi
10K· 6.21 mi
41:59
Rank: #4566 (-841)
5K → 10K
21:09 | 6:48/mi
15K· 9.32 mi
1:03:07
Rank: #4719 (-153)
10K → 15K
21:08 | 6:48/mi
20K· 12.43 mi
1:24:18
Rank: #4671 (+48)
15K → 20K
21:11 | 6:49/mi
Half· 13.11 mi
1:28:51
Rank: #4624 (+47)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:45:35
Rank: #4664 (-40)
Half → 25K
16:44 | 6:54/mi
30K· 18.64 mi
2:07:22
Rank: #4603 (+61)
25K → 30K
21:47 | 7:01/mi
20M
2:16:53
Rank: #4534 (+69)
30K → 20M
9:31 | 7:00/mi
21M
2:24:06
Rank: #4427 (+107)
20M → 21M
7:13 | 7:13/mi
35K· 21.75 mi
2:29:09
Rank: #4381 (+46)
21M → 35K
5:03 | 6:45/mi
23M
2:37:54
Rank: #4311 (+70)
35K → 23M
8:45 | 6:59/mi
24M
2:44:45
Rank: #4302 (+9)
23M → 24M
6:51 | 6:51/mi
40K· 24.85 mi
2:50:41
Rank: #4247 (+55)
24M → 40K
5:56 | 6:56/mi
25.2M
2:53:15
Rank: #4236 (+11)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
3:00:12
Rank: #4238 (-2)
25.2M → Finish
6:57 | 6:49/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:51
Pace6:47 /mi
2nd Half
Distance13.11 mi
Time1:31:21
Pace6:58 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:1320:506:4220:50
6:42
-
10K
6.21 mi11:07:2241:596:4521:09
6:48
+0:06
15K
9.32 mi11:28:301:03:076:4621:08
6:48
0:00
20K
12.43 mi11:49:411:24:186:4721:11
6:49
+0:01
Half
13.11 mi11:54:141:28:516:474:33
6:40
-0:09
25K
15.53 mi12:10:581:45:356:4816:44
6:54
+0:14
30K
18.64 mi12:32:452:07:226:5021:47
7:01
+0:07
20M
20.00 mi12:42:162:16:536:519:31
7:00
-0:01
21M
21.00 mi12:49:292:24:066:527:13
7:13
+0:13
35K
21.75 mi12:54:322:29:096:515:03
6:45
-0:28
23M
23.00 mi13:03:172:37:546:528:45
6:59
+0:14
24M
24.00 mi13:10:082:44:456:526:51
6:51
-0:08
40K
24.85 mi13:16:042:50:416:525:56
6:56
+0:05
25.2M
25.20 mi13:18:382:53:156:532:34
7:27
+0:31
Finish
26.22 mi13:25:353:00:126:536:57
6:49
-0:38

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

6:40 /mi

Average Pace

6:53 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:57:38

99% of race

Time at Steady Pace

2:34

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:52 /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 mi10:46:1320:506:4220:50
6:42
#3725
10K
6.21 mi11:07:2241:596:4521:09
6:48
#4566
15K
9.32 mi11:28:301:03:076:4621:08
6:48
#4719
20K
12.43 mi11:49:411:24:186:4721:11
6:49
#4671
Half
13.11 mi11:54:141:28:516:474:33
6:40
#4624
25K
15.53 mi12:10:581:45:356:4816:44
6:54
#4664
30K
18.64 mi12:32:452:07:226:5021:47
7:01
#4603
20M
20.00 mi12:42:162:16:536:519:31
7:00
#4534
21M
21.00 mi12:49:292:24:066:527:13
7:13
#4427
35K
21.75 mi12:54:322:29:096:515:03
6:45
#4381
23M
23.00 mi13:03:172:37:546:528:45
6:59
#4311
24M
24.00 mi13:10:082:44:456:526:51
6:51
#4302
40K
24.85 mi13:16:042:50:416:525:56
6:56
#4247
25.2M
25.20 mi13:18:382:53:156:532:34
7:27
#4236
Finish
26.22 mi13:25:353:00:126:536:57
6:49
#4238
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3725350135015131(Top 19%)4748(Top 31%)4748(Top 90%)
10K6.21 mi3.10 mi4566-8414265-7644265-7645360(Top 20%)4945(Top 33%)4945(Top 94%)
15K9.32 mi3.11 mi4719-1534394-1294394-1295131(Top 19%)4748(Top 31%)4748(Top 90%)
20K12.43 mi3.11 mi4671+484358+364358+364601(Top 17%)4286(Top 28%)4286(Top 81%)
Half13.11 mi0.68 mi4624+474313+454313+454054(Top 15%)3806(Top 25%)3806(Top 72%)
25K15.53 mi2.42 mi4664-404344-314344-314956(Top 19%)4585(Top 30%)4585(Top 87%)
30K18.64 mi3.11 mi4603+614292+524292+524414(Top 17%)4097(Top 27%)4097(Top 78%)
20M20.00 mi1.36 mi4534+694227+654227+654050(Top 15%)3750(Top 25%)3750(Top 71%)
21M21.00 mi1.00 mi4427+1074134+934134+933223(Top 12%)3009(Top 20%)3009(Top 57%)
35K21.75 mi0.75 mi4381+464090+444090+443867(Top 15%)3561(Top 23%)3561(Top 67%)
23M23.00 mi1.25 mi4311+704032+584032+583732(Top 14%)3446(Top 23%)3446(Top 65%)
24M24.00 mi1.00 mi4302+94025+74025+73936(Top 15%)3595(Top 24%)3595(Top 68%)
40K24.85 mi0.85 mi4247+553972+533972+533545(Top 13%)3224(Top 21%)3224(Top 61%)
25.2M25.20 mi0.35 mi4236+113960+123960+123633(Top 14%)3261(Top 21%)3261(Top 62%)
Finish26.22 mi1.02 mi4238-23959+13959+14180(Top 16%)3684(Top 24%)3684(Top 70%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5131

Males

4748

M18-39

4748

5K→10K

3.1 - 6.2 mi

Top 20%
×5stories
+79ft-138ft

Overall

5360

Males

4945

M18-39

4945

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5131

Males

4748

M18-39

4748

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4601

Males

4286

M18-39

4286

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

4054

Males

3806

M18-39

3806

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

4956

Males

4585

M18-39

4585

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4414

Males

4097

M18-39

4097

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4050

Males

3750

M18-39

3750

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3223

Males

3009

M18-39

3009

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

3867

Males

3561

M18-39

3561

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3732

Males

3446

M18-39

3446

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

3936

Males

3595

M18-39

3595

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3545

Males

3224

M18-39

3224

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3633

Males

3261

M18-39

3261

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4180

Males

3684

M18-39

3684

Passing Analysis

Category:
Athletes Passed
1089
Passed By
1602
Net Change
-513
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3725
5K → 10K20861-841#3725#4566
10K → 15K74227-153#4566#4719
15K → 20K11870+48#4719#4671
20K → Half503+47#4671#4624
Half → 25K92132-40#4624#4664
25K → 30K15392+61#4664#4603
30K → 20M9425+69#4603#4534
20M → 21M12114+107#4534#4427
21M → 35K6721+46#4427#4381
35K → 23M10535+70#4381#4311
23M → 24M5445+9#4311#4302
24M → 40K7116+55#4302#4247
40K → 25.2M2514+11#4247#4236
25.2M → Finish4547-2#4236#4238
TOTALS10891602-513
📊

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