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BOSTON MARATHON 2023

Patrick Shields

Bib: 9669•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 16%
Gender (Male)
#0 / 15176
Top 26%
Masters (Masters Men)
#0 / 9891
Top 13%
Division (M45-49)
#0 / 2252
Top 15%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:06
Rank: #6939
Start → 5K
22:06 | 7:07/mi
10K· 6.21 mi
43:12
Rank: #6207 (+732)
5K → 10K
21:06 | 6:47/mi
15K· 9.32 mi
1:04:16
Rank: #5807 (+400)
10K → 15K
21:04 | 6:47/mi
20K· 12.43 mi
1:25:20
Rank: #5454 (+353)
15K → 20K
21:04 | 6:47/mi
Half· 13.11 mi
1:29:54
Rank: #5407 (+47)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:46:16
Rank: #5096 (+311)
Half → 25K
16:22 | 6:45/mi
30K· 18.64 mi
2:07:38
Rank: #4725 (+371)
25K → 30K
21:22 | 6:53/mi
20M
2:17:03
Rank: #4603 (+122)
30K → 20M
9:25 | 6:56/mi
21M
2:24:13
Rank: #4470 (+133)
20M → 21M
7:10 | 7:10/mi
35K· 21.75 mi
2:29:10
Rank: #4391 (+79)
21M → 35K
4:57 | 6:37/mi
23M
2:37:52
Rank: #4300 (+91)
35K → 23M
8:42 | 6:57/mi
24M
2:44:46
Rank: #4305 (-5)
23M → 24M
6:54 | 6:54/mi
40K· 24.85 mi
2:50:47
Rank: #4282 (+23)
24M → 40K
6:01 | 7:02/mi
25.2M
2:53:20
Rank: #4263 (+19)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
3:00:18
Rank: #4261 (+2)
25.2M → Finish
6:58 | 6:50/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:29:54
Pace6:51 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:30:24
Pace6:54 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:3622:067:0722:06
7:07
-
10K
6.21 mi11:09:4243:126:5721:06
6:47
-0:20
15K
9.32 mi11:30:461:04:166:5421:04
6:47
0:00
20K
12.43 mi11:51:501:25:206:5221:04
6:47
0:00
Half
13.11 mi11:56:241:29:546:514:34
6:42
-0:05
25K
15.53 mi12:12:461:46:166:5016:22
6:45
+0:03
30K
18.64 mi12:34:082:07:386:5121:22
6:53
+0:08
20M
20.00 mi12:43:332:17:036:519:25
6:56
+0:03
21M
21.00 mi12:50:432:24:136:527:10
7:10
+0:14
35K
21.75 mi12:55:402:29:106:524:57
6:37
-0:33
23M
23.00 mi13:04:222:37:526:528:42
6:57
+0:20
24M
24.00 mi13:11:162:44:466:526:54
6:54
-0:03
40K
24.85 mi13:17:172:50:476:526:01
7:02
+0:08
25.2M
25.20 mi13:19:502:53:206:532:33
7:24
+0:22
Finish
26.22 mi13:26:483:00:186:536:58
6:50
-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

6:37 /mi

Average Pace

6:53 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:57:45

99% of race

Time at Steady Pace

2:33

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:53 /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 mi10:48:3622:067:0722:06
7:07
#6939
10K
6.21 mi11:09:4243:126:5721:06
6:47
#6207
15K
9.32 mi11:30:461:04:166:5421:04
6:47
#5807
20K
12.43 mi11:51:501:25:206:5221:04
6:47
#5454
Half
13.11 mi11:56:241:29:546:514:34
6:42
#5407
25K
15.53 mi12:12:461:46:166:5016:22
6:45
#5096
30K
18.64 mi12:34:082:07:386:5121:22
6:53
#4725
20M
20.00 mi12:43:332:17:036:519:25
6:56
#4603
21M
21.00 mi12:50:432:24:136:527:10
7:10
#4470
35K
21.75 mi12:55:402:29:106:524:57
6:37
#4391
23M
23.00 mi13:04:222:37:526:528:42
6:57
#4300
24M
24.00 mi13:11:162:44:466:526:54
6:54
#4305
40K
24.85 mi13:17:172:50:476:526:01
7:02
#4282
25.2M
25.20 mi13:19:502:53:206:532:33
7:24
#4263
Finish
26.22 mi13:26:483:00:186:536:58
6:50
#4261
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi6939622062204922(Top 18%)4573(Top 30%)4573(Top 203%)
10K6.21 mi3.10 mi6207+7325644+5765644+5765193(Top 20%)4802(Top 32%)4802(Top 213%)
15K9.32 mi3.11 mi5807+4005328+3165328+3164922(Top 18%)4573(Top 30%)4573(Top 203%)
20K12.43 mi3.11 mi5454+3535033+2955033+2954256(Top 16%)3984(Top 26%)3984(Top 177%)
Half13.11 mi0.68 mi5407+474998+354998+354280(Top 16%)4004(Top 26%)4004(Top 178%)
25K15.53 mi2.42 mi5096+3114729+2694729+2693760(Top 14%)3540(Top 23%)3540(Top 157%)
30K18.64 mi3.11 mi4725+3714403+3264403+3263515(Top 13%)3306(Top 22%)3306(Top 147%)
20M20.00 mi1.36 mi4603+1224291+1124291+1123609(Top 14%)3368(Top 22%)3368(Top 150%)
21M21.00 mi1.00 mi4470+1334172+1194172+1192950(Top 11%)2767(Top 18%)2767(Top 123%)
35K21.75 mi0.75 mi4391+794098+744098+743127(Top 12%)2929(Top 19%)2929(Top 130%)
23M23.00 mi1.25 mi4300+914023+754023+753524(Top 13%)3265(Top 22%)3265(Top 145%)
24M24.00 mi1.00 mi4305-54028-54028-54153(Top 16%)3779(Top 25%)3779(Top 168%)
40K24.85 mi0.85 mi4282+234001+274001+274021(Top 15%)3603(Top 24%)3603(Top 160%)
25.2M25.20 mi0.35 mi4263+193981+203981+203409(Top 13%)3092(Top 20%)3092(Top 137%)
Finish26.22 mi1.02 mi4261+23977+43977+44272(Top 16%)3748(Top 25%)3748(Top 166%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

4922

Males

4573

M45-49

4573

5K→10K

3.1 - 6.2 mi

Top 20%
×5stories
+79ft-138ft

Overall

5193

Males

4802

M45-49

4802

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

4922

Males

4573

M45-49

4573

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4256

Males

3984

M45-49

3984

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4280

Males

4004

M45-49

4004

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3760

Males

3540

M45-49

3540

25K→30K

15.5 - 18.6 mi

Top 13%
×9stories
+181ft-148ft

Overall

3515

Males

3306

M45-49

3306

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3609

Males

3368

M45-49

3368

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

2950

Males

2767

M45-49

2767

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3127

Males

2929

M45-49

2929

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3524

Males

3265

M45-49

3265

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4153

Males

3779

M45-49

3779

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4021

Males

3603

M45-49

3603

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3409

Males

3092

M45-49

3092

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4272

Males

3748

M45-49

3748

Passing Analysis

Category:
Athletes Passed
2934
Passed By
256
Net Change
+2678
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6939
5K → 10K74816+732#6939#6207
10K → 15K41313+400#6207#5807
15K → 20K3607+353#5807#5454
20K → Half492+47#5454#5407
Half → 25K32110+311#5407#5096
25K → 30K3787+371#5096#4725
30K → 20M13614+122#4725#4603
20M → 21M1418+133#4603#4470
21M → 35K867+79#4470#4391
35K → 23M11928+91#4391#4300
23M → 24M4954-5#4300#4305
24M → 40K5936+23#4305#4282
40K → 25.2M289+19#4282#4263
25.2M → Finish4745+2#4263#4261
TOTALS2934256+2678
📊

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