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BOSTON MARATHON 2023

Joseph Demetrick

Bib: 14619•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 33%
Gender (Male)
#0 / 15176
Top 48%
Masters (Masters Men)
#0 / 9891
Top 36%
Division (M50-54)
#0 / 2052
Top 32%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:03
Rank: #11809
Start → 5K
24:03 | 7:44/mi
10K· 6.21 mi
47:50
Rank: #11778 (+31)
5K → 10K
23:47 | 7:39/mi
15K· 9.32 mi
1:10:56
Rank: #11007 (+771)
10K → 15K
23:06 | 7:26/mi
20K· 12.43 mi
1:34:04
Rank: #10423 (+584)
15K → 20K
23:08 | 7:27/mi
Half· 13.11 mi
1:39:05
Rank: #10348 (+75)
20K → Half
5:01 | 7:21/mi
25K· 15.53 mi
1:57:06
Rank: #9948 (+400)
Half → 25K
18:01 | 7:26/mi
30K· 18.64 mi
2:20:56
Rank: #9667 (+281)
25K → 30K
23:50 | 7:40/mi
20M
2:31:22
Rank: #9512 (+155)
30K → 20M
10:26 | 7:40/mi
21M
2:39:24
Rank: #9343 (+169)
20M → 21M
8:02 | 8:02/mi
35K· 21.75 mi
2:44:57
Rank: #9274 (+69)
21M → 35K
5:33 | 7:25/mi
23M
2:54:39
Rank: #9189 (+85)
35K → 23M
9:42 | 7:45/mi
24M
3:02:11
Rank: #9102 (+87)
23M → 24M
7:32 | 7:32/mi
40K· 24.85 mi
3:08:45
Rank: #9037 (+65)
24M → 40K
6:34 | 7:41/mi
25.2M
3:11:24
Rank: #8937 (+100)
40K → 25.2M
2:39 | 7:41/mi
Finish· 26.22 mi
3:18:38
Rank: #8780 (+157)
25.2M → Finish
7:14 | 7:06/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:39:05
Pace7:33 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:39:33
Pace7:36 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1124:037:4424:03
7:44
-
10K
6.21 mi11:16:5847:507:4223:47
7:39
-0:05
15K
9.32 mi11:40:041:10:567:3723:06
7:26
-0:13
20K
12.43 mi12:03:121:34:047:3423:08
7:27
+0:01
Half
13.11 mi12:08:131:39:057:335:01
7:21
-0:06
25K
15.53 mi12:26:141:57:067:3218:01
7:26
+0:05
30K
18.64 mi12:50:042:20:567:3423:50
7:40
+0:14
20M
20.00 mi13:00:302:31:227:3410:26
7:40
0:00
21M
21.00 mi13:08:322:39:247:358:02
8:02
+0:22
35K
21.75 mi13:14:052:44:577:355:33
7:25
-0:37
23M
23.00 mi13:23:472:54:397:369:42
7:45
+0:20
24M
24.00 mi13:31:193:02:117:357:32
7:32
-0:13
40K
24.85 mi13:37:533:08:457:366:34
7:41
+0:09
25.2M
25.20 mi13:40:323:11:247:362:39
7:41
0:00
Finish
26.22 mi13:47:463:18:387:357:14
7:06
-0:35

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

7:06 /mi

Average Pace

7:35 /mi

Slowest Pace

8:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:36

96% of race

Time at Steady Pace

8:02

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:35 /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 mi10:53:1124:037:4424:03
7:44
#11809
10K
6.21 mi11:16:5847:507:4223:47
7:39
#11778
15K
9.32 mi11:40:041:10:567:3723:06
7:26
#11007
20K
12.43 mi12:03:121:34:047:3423:08
7:27
#10423
Half
13.11 mi12:08:131:39:057:335:01
7:21
#10348
25K
15.53 mi12:26:141:57:067:3218:01
7:26
#9948
30K
18.64 mi12:50:042:20:567:3423:50
7:40
#9667
20M
20.00 mi13:00:302:31:227:3410:26
7:40
#9512
21M
21.00 mi13:08:322:39:247:358:02
8:02
#9343
35K
21.75 mi13:14:052:44:577:355:33
7:25
#9274
23M
23.00 mi13:23:472:54:397:369:42
7:45
#9189
24M
24.00 mi13:31:193:02:117:357:32
7:32
#9102
40K
24.85 mi13:37:533:08:457:366:34
7:41
#9037
25.2M
25.20 mi13:40:323:11:247:362:39
7:41
#8937
Finish
26.22 mi13:47:463:18:387:357:14
7:06
#8780
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi11809903290329638(Top 36%)7942(Top 52%)7942(Top 387%)
10K6.21 mi3.10 mi11778+319008+249008+2411816(Top 44%)9025(Top 59%)9025(Top 440%)
15K9.32 mi3.11 mi11007+7718656+3528656+3529638(Top 36%)7942(Top 52%)7942(Top 387%)
20K12.43 mi3.11 mi10423+5848374+2828374+2828869(Top 33%)7422(Top 49%)7422(Top 362%)
Half13.11 mi0.68 mi10348+758333+418333+418991(Top 34%)7507(Top 49%)7507(Top 366%)
25K15.53 mi2.42 mi9948+4008103+2308103+2308250(Top 31%)6973(Top 46%)6973(Top 340%)
30K18.64 mi3.11 mi9667+2817905+1987905+1988462(Top 32%)6955(Top 46%)6955(Top 339%)
20M20.00 mi1.36 mi9512+1557789+1167789+1167986(Top 30%)6577(Top 43%)6577(Top 321%)
21M21.00 mi1.00 mi9343+1697659+1307659+1307547(Top 28%)6215(Top 41%)6215(Top 303%)
35K21.75 mi0.75 mi9274+697601+587601+587926(Top 30%)6461(Top 43%)6461(Top 315%)
23M23.00 mi1.25 mi9189+857526+757526+758032(Top 30%)6431(Top 42%)6431(Top 313%)
24M24.00 mi1.00 mi9102+877455+717455+717927(Top 30%)6275(Top 41%)6275(Top 306%)
40K24.85 mi0.85 mi9037+657403+527403+527902(Top 30%)6166(Top 41%)6166(Top 300%)
25.2M25.20 mi0.35 mi8937+1007327+767327+764679(Top 18%)4032(Top 27%)4032(Top 196%)
Finish26.22 mi1.02 mi8780+1577214+1137214+1135822(Top 22%)4814(Top 32%)4814(Top 235%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

9638

Males

7942

M50-54

7942

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

11816

Males

9025

M50-54

9025

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

9638

Males

7942

M50-54

7942

15K→20K

9.3 - 12.4 mi

Top 33%
×5stories
+106ft-86ft

Overall

8869

Males

7422

M50-54

7422

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

8991

Males

7507

M50-54

7507

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8250

Males

6973

M50-54

6973

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

8462

Males

6955

M50-54

6955

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

7986

Males

6577

M50-54

6577

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7547

Males

6215

M50-54

6215

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

7926

Males

6461

M50-54

6461

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

8032

Males

6431

M50-54

6431

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

7927

Males

6275

M50-54

6275

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

7902

Males

6166

M50-54

6166

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4679

Males

4032

M50-54

4032

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

5822

Males

4814

M50-54

4814

Passing Analysis

Category:
Athletes Passed
3501*
Passed By
472
Net Change
+3029
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11809
5K → 10K314283+31#11809#11778
10K → 15K78615+771#11778#11007
15K → 20K5895+584#11007#10423
20K → Half827+75#10423#10348
Half → 25K408*8+400#10348#9948
25K → 30K321*40+281#9948#9667
30K → 20M16914+155#9667#9512
20M → 21M18213+169#9512#9343
21M → 35K8314+69#9343#9274
35K → 23M12136+85#9274#9189
23M → 24M10114+87#9189#9102
24M → 40K8116+65#9102#9037
40K → 25.2M1000+100#9037#8937
25.2M → Finish1647+157#8937#8780
TOTALS3501*472+3029

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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