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BOSTON MARATHON 2023

Jeff Boyd

Bib: 18623•M

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0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:31
Rank: #17786
Start → 5K
8:32/mi
26:31 split
10K· 6.21 mi
53:06
Rank: #18171 (-385)
5K → 10K
8:33/mi
26:35 split
15K· 9.32 mi
1:19:49
Rank: #18250 (-79)
10K → 15K
8:36/mi
26:43 split
20K· 12.43 mi
1:47:12
Rank: #18357 (-107)
15K → 20K
8:49/mi
27:23 split
Half· 13.11 mi
1:53:07
Rank: #18371 (-14)
20K → Half
8:40/mi
5:55 split
25K· 15.53 mi
2:14:29
Rank: #18317 (+54)
Half → 25K
8:49/mi
21:22 split
30K· 18.64 mi
2:43:30
Rank: #18408 (-91)
25K → 30K
9:20/mi
29:01 split
20M
2:56:32
Rank: #18475 (-67)
30K → 20M
9:35/mi
13:02 split
21M
3:06:57
Rank: #18566 (-91)
20M → 21M
10:25/mi
10:25 split
35K· 21.75 mi
3:13:57
Rank: #18581 (-15)
21M → 35K
9:21/mi
7:00 split
23M
3:26:23
Rank: #18691 (-110)
35K → 23M
9:56/mi
12:26 split
24M
3:36:18
Rank: #18805 (-114)
23M → 24M
9:55/mi
9:55 split
40K· 24.85 mi
3:45:12
Rank: #18964 (-159)
24M → 40K
10:25/mi
8:54 split
25.2M
3:49:07
Rank: #19016 (-52)
40K → 25.2M
11:21/mi
3:55 split
Finish· 26.22 mi
3:59:47
Rank: #19275 (-259)
25.2M → Finish
10:28/mi
10:40 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:07
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time2:06:40
Pace9:40 /mi
📊Positive Split: 12.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5226:318:3226:31
8:32
-
10K
6.21 mi11:49:2753:068:3326:35
8:33
+0:01
15K
9.32 mi12:16:101:19:498:3426:43
8:36
+0:03
20K
12.43 mi12:43:331:47:128:3827:23
8:49
+0:13
Half
13.11 mi12:49:281:53:078:385:55
8:40
-0:09
25K
15.53 mi13:10:502:14:298:3921:22
8:49
+0:09
30K
18.64 mi13:39:512:43:308:4629:01
9:20
+0:31
20M
20.00 mi13:52:532:56:328:5013:02
9:35
+0:15
21M
21.00 mi14:03:183:06:578:5410:25
10:25
+0:50
35K
21.75 mi14:10:183:13:578:557:00
9:21
-1:04
23M
23.00 mi14:22:443:26:238:5812:26
9:56
+0:35
24M
24.00 mi14:32:393:36:189:019:55
9:55
-0:01
40K
24.85 mi14:41:333:45:129:048:54
10:25
+0:30
25.2M
25.20 mi14:45:283:49:079:063:55
11:21
+0:56
Finish
26.22 mi14:56:083:59:479:0910:40
10:28
-0:53

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

8:32 /mi

Average Pace

9:09 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:29

56% of race

Time at Steady Pace

49:03

20% of race

Time at Slower Pace

56:15

23% of race

Average Pace: 9:09 /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 mi11:22:5226:318:3226:31
8:32
#17786
10K
6.21 mi11:49:2753:068:3326:35
8:33
#18171
15K
9.32 mi12:16:101:19:498:3426:43
8:36
#18250
20K
12.43 mi12:43:331:47:128:3827:23
8:49
#18357
Half
13.11 mi12:49:281:53:078:385:55
8:40
#18371
25K
15.53 mi13:10:502:14:298:3921:22
8:49
#18317
30K
18.64 mi13:39:512:43:308:4629:01
9:20
#18408
20M
20.00 mi13:52:532:56:328:5013:02
9:35
#18475
21M
21.00 mi14:03:183:06:578:5410:25
10:25
#18566
35K
21.75 mi14:10:183:13:578:557:00
9:21
#18581
23M
23.00 mi14:22:443:26:238:5812:26
9:56
#18691
24M
24.00 mi14:32:393:36:189:019:55
9:55
#18805
40K
24.85 mi14:41:333:45:129:048:54
10:25
#18964
25.2M
25.20 mi14:45:283:49:079:063:55
11:21
#19016
Finish
26.22 mi14:56:083:59:479:0910:40
10:28
#19275
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi17786113531135318434(Top 69%)11661(Top 77%)11661(Top 820%)
10K6.21 mi3.10 mi18171-38511521-16811521-16818594(Top 70%)11746(Top 77%)11746(Top 826%)
15K9.32 mi3.11 mi18250-7911566-4511566-4518434(Top 69%)11661(Top 77%)11661(Top 820%)
20K12.43 mi3.11 mi18357-10711612-4611612-4618763(Top 70%)11797(Top 78%)11797(Top 830%)
Half13.11 mi0.68 mi18371-1411625-1311625-1318753(Top 70%)11808(Top 78%)11808(Top 830%)
25K15.53 mi2.42 mi18317+5411580+4511580+4518021(Top 68%)11442(Top 75%)11442(Top 805%)
30K18.64 mi3.11 mi18408-9111576+411576+418777(Top 71%)11686(Top 77%)11686(Top 822%)
20M20.00 mi1.36 mi18475-6711602-2611602-2619175(Top 72%)11766(Top 78%)11766(Top 827%)
21M21.00 mi1.00 mi18566-9111634-3211634-3219303(Top 73%)11766(Top 78%)11766(Top 827%)
35K21.75 mi0.75 mi18581-1511636-211636-219351(Top 73%)11752(Top 77%)11752(Top 826%)
23M23.00 mi1.25 mi18691-11011662-2611662-2619766(Top 74%)11914(Top 79%)11914(Top 838%)
24M24.00 mi1.00 mi18805-11411696-3411696-3420540(Top 77%)12228(Top 81%)12228(Top 860%)
40K24.85 mi0.85 mi18964-15911766-7011766-7020992(Top 79%)12370(Top 82%)12370(Top 870%)
25.2M25.20 mi0.35 mi19016-5211784-1811784-1821216(Top 80%)12482(Top 82%)12482(Top 878%)
Finish26.22 mi1.02 mi19275-25911889-10511889-10522924(Top 86%)13284(Top 88%)13284(Top 934%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18434

Males

11661

M55-59

11661

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

18594

Males

11746

M55-59

11746

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18434

Males

11661

M55-59

11661

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18763

Males

11797

M55-59

11797

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

18753

Males

11808

M55-59

11808

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

18021

Males

11442

M55-59

11442

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

18777

Males

11686

M55-59

11686

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

19175

Males

11766

M55-59

11766

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

19303

Males

11766

M55-59

11766

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

19351

Males

11752

M55-59

11752

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

19766

Males

11914

M55-59

11914

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

20540

Males

12228

M55-59

12228

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

20992

Males

12370

M55-59

12370

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21216

Males

12482

M55-59

12482

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

22924

Males

13284

M55-59

13284

Passing Analysis

Category:
Athletes Passed
1031
Passed By
2520
Net Change
-1489
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17786
5K → 10K154539-385#17786#18171
10K → 15K156235-79#18171#18250
15K → 20K125232-107#18250#18357
20K → Half2741-14#18357#18371
Half → 25K14389+54#18371#18317
25K → 30K156247-91#18317#18408
30K → 20M68135-67#18408#18475
20M → 21M54145-91#18475#18566
21M → 35K3853-15#18566#18581
35K → 23M47157-110#18581#18691
23M → 24M25139-114#18691#18805
24M → 40K20179-159#18805#18964
40K → 25.2M1365-52#18964#19016
25.2M → Finish5264-259#19016#19275
TOTALS10312520-1489
📊

Passing Visuals

Category:
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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