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BOSTON MARATHON 2023

Justin Dutton

Bib: 3034•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 9%
Gender (Male)
#0 / 15176
Top 15%
Masters (Masters Men)
#0 / 9891
Top 5%
Division (M45-49)
#0 / 2252
Top 6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:27
Rank: #2745
Start → 5K
20:27 | 6:35/mi
10K· 6.21 mi
40:55
Rank: #3035 (-290)
5K → 10K
20:28 | 6:35/mi
15K· 9.32 mi
1:01:27
Rank: #3142 (-107)
10K → 15K
20:32 | 6:37/mi
20K· 12.43 mi
1:22:11
Rank: #3159 (-17)
15K → 20K
20:44 | 6:40/mi
Half· 13.11 mi
1:26:44
Rank: #3196 (-37)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:42:56
Rank: #3177 (+19)
Half → 25K
16:12 | 6:41/mi
30K· 18.64 mi
2:04:01
Rank: #3057 (+120)
25K → 30K
21:05 | 6:47/mi
20M
2:13:11
Rank: #2996 (+61)
30K → 20M
9:10 | 6:45/mi
21M
2:20:13
Rank: #2931 (+65)
20M → 21M
7:02 | 7:02/mi
35K· 21.75 mi
2:24:59
Rank: #2859 (+72)
21M → 35K
4:46 | 6:22/mi
23M
2:33:11
Rank: #2731 (+128)
35K → 23M
8:12 | 6:33/mi
24M
2:39:27
Rank: #2588 (+143)
23M → 24M
6:16 | 6:16/mi
40K· 24.85 mi
2:44:58
Rank: #2512 (+76)
24M → 40K
5:31 | 6:27/mi
25.2M
2:47:23
Rank: #2486 (+26)
40K → 25.2M
2:25 | 7:00/mi
Finish· 26.22 mi
2:53:48
Rank: #2428 (+58)
25.2M → Finish
6:25 | 6:18/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:26:44
Pace6:37 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:27:04
Pace6:39 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:4420:276:3520:27
6:35
-
10K
6.21 mi10:42:1240:556:3520:28
6:35
0:00
15K
9.32 mi11:02:441:01:276:3620:32
6:37
+0:02
20K
12.43 mi11:23:281:22:116:3720:44
6:40
+0:03
Half
13.11 mi11:28:011:26:446:374:33
6:40
0:00
25K
15.53 mi11:44:131:42:566:3816:12
6:41
+0:01
30K
18.64 mi12:05:182:04:016:3921:05
6:47
+0:06
20M
20.00 mi12:14:282:13:116:409:10
6:45
-0:02
21M
21.00 mi12:21:302:20:136:417:02
7:02
+0:17
35K
21.75 mi12:26:162:24:596:404:46
6:22
-0:40
23M
23.00 mi12:34:282:33:116:408:12
6:33
+0:11
24M
24.00 mi12:40:442:39:276:396:16
6:16
-0:17
40K
24.85 mi12:46:152:44:586:385:31
6:27
+0:11
25.2M
25.20 mi12:48:402:47:236:392:25
7:00
+0:33
Finish
26.22 mi12:55:052:53:486:386:25
6:18
-0:42

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

6:16 /mi

Average Pace

6:38 /mi

Slowest Pace

7:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:21

95% of race

Time at Steady Pace

9:27

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:38 /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 mi10:21:4420:276:3520:27
6:35
#2745
10K
6.21 mi10:42:1240:556:3520:28
6:35
#3035
15K
9.32 mi11:02:441:01:276:3620:32
6:37
#3142
20K
12.43 mi11:23:281:22:116:3720:44
6:40
#3159
Half
13.11 mi11:28:011:26:446:374:33
6:40
#3196
25K
15.53 mi11:44:131:42:566:3816:12
6:41
#3177
30K
18.64 mi12:05:182:04:016:3921:05
6:47
#3057
20M
20.00 mi12:14:282:13:116:409:10
6:45
#2996
21M
21.00 mi12:21:302:20:136:417:02
7:02
#2931
35K
21.75 mi12:26:162:24:596:404:46
6:22
#2859
23M
23.00 mi12:34:282:33:116:408:12
6:33
#2731
24M
24.00 mi12:40:442:39:276:396:16
6:16
#2588
40K
24.85 mi12:46:152:44:586:385:31
6:27
#2512
25.2M
25.20 mi12:48:402:47:236:392:25
7:00
#2486
Finish
26.22 mi12:55:052:53:486:386:25
6:18
#2428
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi2745261326133343(Top 13%)3172(Top 21%)3172(Top 141%)
10K6.21 mi3.10 mi3035-2902890-2772890-2773391(Top 13%)3220(Top 21%)3220(Top 143%)
15K9.32 mi3.11 mi3142-1072992-1022992-1023343(Top 13%)3172(Top 21%)3172(Top 141%)
20K12.43 mi3.11 mi3159-173007-153007-153343(Top 13%)3171(Top 21%)3171(Top 141%)
Half13.11 mi0.68 mi3196-373042-353042-353944(Top 15%)3696(Top 24%)3696(Top 164%)
25K15.53 mi2.42 mi3177+193025+173025+173213(Top 12%)3061(Top 20%)3061(Top 136%)
30K18.64 mi3.11 mi3057+1202913+1122913+1122873(Top 11%)2723(Top 18%)2723(Top 121%)
20M20.00 mi1.36 mi2996+612856+572856+572497(Top 9%)2368(Top 16%)2368(Top 105%)
21M21.00 mi1.00 mi2931+652796+602796+602287(Top 9%)2160(Top 14%)2160(Top 96%)
35K21.75 mi0.75 mi2859+722726+702726+701871(Top 7%)1777(Top 12%)1777(Top 79%)
23M23.00 mi1.25 mi2731+1282608+1182608+1181620(Top 6%)1540(Top 10%)1540(Top 68%)
24M24.00 mi1.00 mi2588+1432473+1352473+1351276(Top 5%)1210(Top 8%)1210(Top 54%)
40K24.85 mi0.85 mi2512+762398+752398+751404(Top 5%)1327(Top 9%)1327(Top 59%)
25.2M25.20 mi0.35 mi2486+262372+262372+261770(Top 7%)1663(Top 11%)1663(Top 74%)
Finish26.22 mi1.02 mi2428+582319+532319+531630(Top 6%)1535(Top 10%)1535(Top 68%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3343

Males

3172

M45-49

3172

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3391

Males

3220

M45-49

3220

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3343

Males

3172

M45-49

3172

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3343

Males

3171

M45-49

3171

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

3944

Males

3696

M45-49

3696

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3213

Males

3061

M45-49

3061

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

2873

Males

2723

M45-49

2723

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2497

Males

2368

M45-49

2368

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2287

Males

2160

M45-49

2160

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1871

Males

1777

M45-49

1777

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1620

Males

1540

M45-49

1540

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1276

Males

1210

M45-49

1210

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1404

Males

1327

M45-49

1327

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1770

Males

1663

M45-49

1663

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1630

Males

1535

M45-49

1535

Passing Analysis

Category:
Athletes Passed
1119
Passed By
802
Net Change
+317
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2745
5K → 10K60350-290#2745#3035
10K → 15K47154-107#3035#3142
15K → 20K86103-17#3142#3159
20K → Half946-37#3159#3196
Half → 25K7152+19#3196#3177
25K → 30K15434+120#3177#3057
30K → 20M7514+61#3057#2996
20M → 21M7914+65#2996#2931
21M → 35K775+72#2931#2859
35K → 23M1335+128#2859#2731
23M → 24M1441+143#2731#2588
24M → 40K804+76#2588#2512
40K → 25.2M304+26#2512#2486
25.2M → Finish7416+58#2486#2428
TOTALS1119802+317
📊

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