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BOSTON MARATHON 2023

Samuel Cox

Bib: 21499•M

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Top 29%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:38
Rank: #15798
Start → 5K
25:38 | 8:15/mi
10K· 6.21 mi
51:18
Rank: #16207 (-409)
5K → 10K
25:40 | 8:16/mi
15K· 9.32 mi
1:17:03
Rank: #16277 (-70)
10K → 15K
25:45 | 8:17/mi
20K· 12.43 mi
1:42:48
Rank: #16067 (+210)
15K → 20K
25:45 | 8:17/mi
Half· 13.11 mi
1:48:31
Rank: #16110 (-43)
20K → Half
5:43 | 8:23/mi
25K· 15.53 mi
2:08:42
Rank: #15931 (+179)
Half → 25K
20:11 | 8:19/mi
30K· 18.64 mi
2:35:34
Rank: #15780 (+151)
25K → 30K
26:52 | 8:39/mi
20M
2:47:00
Rank: #15554 (+226)
30K → 20M
11:26 | 8:25/mi
21M
2:56:04
Rank: #15420 (+134)
20M → 21M
9:04 | 9:04/mi
35K· 21.75 mi
3:02:20
Rank: #15380 (+40)
21M → 35K
6:16 | 8:23/mi
23M
3:13:02
Rank: #15239 (+141)
35K → 23M
10:42 | 8:33/mi
24M
3:21:21
Rank: #15135 (+104)
23M → 24M
8:19 | 8:19/mi
40K· 24.85 mi
3:28:33
Rank: #15045 (+90)
24M → 40K
7:12 | 8:25/mi
25.2M
3:31:34
Rank: #14980 (+65)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:39:15
Rank: #14736 (+244)
25.2M → Finish
7:41 | 7:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:31
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time1:50:44
Pace8:27 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4525:388:1525:38
8:15
-
10K
6.21 mi11:44:2551:188:1525:40
8:16
+0:01
15K
9.32 mi12:10:101:17:038:1625:45
8:17
+0:01
20K
12.43 mi12:35:551:42:488:1625:45
8:17
0:00
Half
13.11 mi12:41:381:48:318:175:43
8:23
+0:06
25K
15.53 mi13:01:492:08:428:1720:11
8:19
-0:04
30K
18.64 mi13:28:412:35:348:2126:52
8:39
+0:20
20M
20.00 mi13:40:072:47:008:2111:26
8:25
-0:14
21M
21.00 mi13:49:112:56:048:239:04
9:04
+0:39
35K
21.75 mi13:55:273:02:208:236:16
8:23
-0:41
23M
23.00 mi14:06:093:13:028:2410:42
8:33
+0:10
24M
24.00 mi14:14:283:21:218:238:19
8:19
-0:14
40K
24.85 mi14:21:403:28:338:237:12
8:25
+0:06
25.2M
25.20 mi14:24:413:31:348:243:01
8:45
+0:20
Finish
26.22 mi14:32:223:39:158:227:41
7:32
-1:13

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

7:32 /mi

Average Pace

8:22 /mi

Slowest Pace

9:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

7:41

4% of race

Time at Steady Pace

2:41:55

74% of race

Time at Slower Pace

49:39

23% of race

Average Pace: 8:22 /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 mi11:18:4525:388:1525:38
8:15
#15798
10K
6.21 mi11:44:2551:188:1525:40
8:16
#16207
15K
9.32 mi12:10:101:17:038:1625:45
8:17
#16277
20K
12.43 mi12:35:551:42:488:1625:45
8:17
#16067
Half
13.11 mi12:41:381:48:318:175:43
8:23
#16110
25K
15.53 mi13:01:492:08:428:1720:11
8:19
#15931
30K
18.64 mi13:28:412:35:348:2126:52
8:39
#15780
20M
20.00 mi13:40:072:47:008:2111:26
8:25
#15554
21M
21.00 mi13:49:112:56:048:239:04
9:04
#15420
35K
21.75 mi13:55:273:02:208:236:16
8:23
#15380
23M
23.00 mi14:06:093:13:028:2410:42
8:33
#15239
24M
24.00 mi14:14:283:21:218:238:19
8:19
#15135
40K
24.85 mi14:21:403:28:338:237:12
8:25
#15045
25.2M
25.20 mi14:24:413:31:348:243:01
8:45
#14980
Finish
26.22 mi14:32:223:39:158:227:41
7:32
#14736
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi15798106241062416458(Top 62%)10867(Top 72%)10867(Top 979%)
10K6.21 mi3.10 mi16207-40910788-16410788-16416642(Top 63%)10958(Top 72%)10958(Top 987%)
15K9.32 mi3.11 mi16277-7010802-1410802-1416458(Top 62%)10867(Top 72%)10867(Top 979%)
20K12.43 mi3.11 mi16067+21010699+10310699+10315531(Top 58%)10463(Top 69%)10463(Top 943%)
Half13.11 mi0.68 mi16110-4310709-1010709-1016945(Top 64%)11043(Top 73%)11043(Top 995%)
25K15.53 mi2.42 mi15931+17910618+9110618+9115092(Top 57%)10171(Top 67%)10171(Top 916%)
30K18.64 mi3.11 mi15780+15110519+9910519+9915200(Top 57%)10124(Top 67%)10124(Top 912%)
20M20.00 mi1.36 mi15554+22610412+10710412+10713090(Top 49%)9170(Top 60%)9170(Top 826%)
21M21.00 mi1.00 mi15420+13410328+8410328+8413781(Top 52%)9393(Top 62%)9393(Top 846%)
35K21.75 mi0.75 mi15380+4010302+2610302+2614547(Top 55%)9665(Top 64%)9665(Top 871%)
23M23.00 mi1.25 mi15239+14110231+7110231+7113496(Top 51%)9144(Top 60%)9144(Top 824%)
24M24.00 mi1.00 mi15135+10410179+5210179+5213315(Top 50%)9014(Top 59%)9014(Top 812%)
40K24.85 mi0.85 mi15045+9010121+5810121+5812827(Top 48%)8702(Top 57%)8702(Top 784%)
25.2M25.20 mi0.35 mi14980+6510083+3810083+3810997(Top 41%)7808(Top 51%)7808(Top 703%)
Finish26.22 mi1.02 mi14736+2449967+1169967+1168848(Top 33%)6676(Top 44%)6676(Top 601%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

16458

Males

10867

M60-64

10867

5K→10K

3.1 - 6.2 mi

Top 63%
×5stories
+79ft-138ft

Overall

16642

Males

10958

M60-64

10958

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

16458

Males

10867

M60-64

10867

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

15531

Males

10463

M60-64

10463

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

16945

Males

11043

M60-64

11043

Half→25K

13.1 - 15.5 mi

Top 57%
×4stories
+66ft-88ft

Overall

15092

Males

10171

M60-64

10171

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

15200

Males

10124

M60-64

10124

30K→20M

18.6 - 20.0 mi

Top 49%
×5stories
+64ft-50ft

Overall

13090

Males

9170

M60-64

9170

20M→21M

20.0 - 21.0 mi

Top 52%
×8stories
+106ft-24ft

Overall

13781

Males

9393

M60-64

9393

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

14547

Males

9665

M60-64

9665

35K→23M

21.8 - 23.0 mi

Top 51%
×5stories
+23ft-63ft

Overall

13496

Males

9144

M60-64

9144

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

13315

Males

9014

M60-64

9014

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12827

Males

8702

M60-64

8702

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10997

Males

7808

M60-64

7808

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

8848

Males

6676

M60-64

6676

Passing Analysis

Category:
Athletes Passed
2248
Passed By
1186
Net Change
+1062
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15798
5K → 10K143552-409#15798#16207
10K → 15K161231-70#16207#16277
15K → 20K28272+210#16277#16067
20K → Half1962-43#16067#16110
Half → 25K22748+179#16110#15931
25K → 30K253102+151#15931#15780
30K → 20M2304+226#15780#15554
20M → 21M15420+134#15554#15420
21M → 35K6727+40#15420#15380
35K → 23M16625+141#15380#15239
23M → 24M12016+104#15239#15135
24M → 40K10919+90#15135#15045
40K → 25.2M705+65#15045#14980
25.2M → Finish2473+244#14980#14736
TOTALS22481186+1062
📊

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