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BOSTON MARATHON 2023

Dennis Barber

Bib: 21629•M

MI

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
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:44
Rank: #18250
Start → 5K
26:44 | 8:36/mi
10K· 6.21 mi
53:31
Rank: #18588 (-338)
5K → 10K
26:47 | 8:37/mi
15K· 9.32 mi
1:20:21
Rank: #18591 (-3)
10K → 15K
26:50 | 8:38/mi
20K· 12.43 mi
1:47:44
Rank: #18628 (-37)
15K → 20K
27:23 | 8:49/mi
Half· 13.11 mi
1:53:45
Rank: #18675 (-47)
20K → Half
6:01 | 8:49/mi
25K· 15.53 mi
2:14:53
Rank: #18474 (+201)
Half → 25K
21:08 | 8:43/mi
30K· 18.64 mi
2:43:00
Rank: #18244 (+230)
25K → 30K
28:07 | 9:03/mi
20M
2:55:17
Rank: #18123 (+121)
30K → 20M
12:17 | 9:02/mi
21M
3:04:46
Rank: #17964 (+159)
20M → 21M
9:29 | 9:29/mi
35K· 21.75 mi
3:11:26
Rank: #17959 (+5)
21M → 35K
6:40 | 8:55/mi
23M
3:22:40
Rank: #17850 (+109)
35K → 23M
11:14 | 8:58/mi
24M
3:30:55
Rank: #17634 (+216)
23M → 24M
8:15 | 8:15/mi
40K· 24.85 mi
3:38:16
Rank: #17499 (+135)
24M → 40K
7:21 | 8:36/mi
25.2M
3:41:28
Rank: #17438 (+61)
40K → 25.2M
3:12 | 9:17/mi
Finish· 26.22 mi
3:50:19
Rank: #17410 (+28)
25.2M → Finish
8:51 | 8:41/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:45
Pace8:41 /mi
2nd Half
Distance13.11 mi
Time1:56:34
Pace8:54 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:2626:448:3626:44
8:36
-
10K
6.21 mi11:46:1353:318:3726:47
8:37
+0:01
15K
9.32 mi12:13:031:20:218:3726:50
8:38
+0:01
20K
12.43 mi12:40:261:47:448:4027:23
8:49
+0:11
Half
13.11 mi12:46:271:53:458:416:01
8:49
0:00
25K
15.53 mi13:07:352:14:538:4121:08
8:43
-0:06
30K
18.64 mi13:35:422:43:008:4528:07
9:03
+0:20
20M
20.00 mi13:47:592:55:178:4612:17
9:02
-0:01
21M
21.00 mi13:57:283:04:468:489:29
9:29
+0:27
35K
21.75 mi14:04:083:11:268:486:40
8:55
-0:34
23M
23.00 mi14:15:223:22:408:4911:14
8:58
+0:03
24M
24.00 mi14:23:373:30:558:478:15
8:15
-0:43
40K
24.85 mi14:30:583:38:168:477:21
8:36
+0:21
25.2M
25.20 mi14:34:103:41:288:473:12
9:17
+0:41
Finish
26.22 mi14:43:013:50:198:478:51
8:41
-0:36

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

8:15 /mi

Average Pace

8:47 /mi

Slowest Pace

9:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:37:38

94% of race

Time at Steady Pace

12:41

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:47 /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 mi11:19:2626:448:3626:44
8:36
#18250
10K
6.21 mi11:46:1353:318:3726:47
8:37
#18588
15K
9.32 mi12:13:031:20:218:3726:50
8:38
#18591
20K
12.43 mi12:40:261:47:448:4027:23
8:49
#18628
Half
13.11 mi12:46:271:53:458:416:01
8:49
#18675
25K
15.53 mi13:07:352:14:538:4121:08
8:43
#18474
30K
18.64 mi13:35:422:43:008:4528:07
9:03
#18244
20M
20.00 mi13:47:592:55:178:4612:17
9:02
#18123
21M
21.00 mi13:57:283:04:468:489:29
9:29
#17964
35K
21.75 mi14:04:083:11:268:486:40
8:55
#17959
23M
23.00 mi14:15:223:22:408:4911:14
8:58
#17850
24M
24.00 mi14:23:373:30:558:478:15
8:15
#17634
40K
24.85 mi14:30:583:38:168:477:21
8:36
#17499
25.2M
25.20 mi14:34:103:41:288:473:12
9:17
#17438
Finish
26.22 mi14:43:013:50:198:478:51
8:41
#17410
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi18250115191151918651(Top 70%)11740(Top 77%)11740(Top 1058%)
10K6.21 mi3.10 mi18588-33811691-17211691-17218944(Top 71%)11872(Top 78%)11872(Top 1070%)
15K9.32 mi3.11 mi18591-311695-411695-418651(Top 70%)11740(Top 77%)11740(Top 1058%)
20K12.43 mi3.11 mi18628-3711720-2511720-2518757(Top 70%)11791(Top 78%)11791(Top 1062%)
Half13.11 mi0.68 mi18675-4711734-1411734-1419543(Top 73%)12106(Top 80%)12106(Top 1091%)
25K15.53 mi2.42 mi18474+20111637+9711637+9717455(Top 66%)11176(Top 74%)11176(Top 1007%)
30K18.64 mi3.11 mi18244+23011508+12911508+12917427(Top 65%)11091(Top 73%)11091(Top 999%)
20M20.00 mi1.36 mi18123+12111448+6011448+6016740(Top 63%)10722(Top 71%)10722(Top 966%)
21M21.00 mi1.00 mi17964+15911375+7311375+7315872(Top 60%)10300(Top 68%)10300(Top 928%)
35K21.75 mi0.75 mi17959+511367+811367+817484(Top 66%)10922(Top 72%)10922(Top 984%)
23M23.00 mi1.25 mi17850+10911300+6711300+6715896(Top 60%)10201(Top 67%)10201(Top 919%)
24M24.00 mi1.00 mi17634+21611197+10311197+10312937(Top 49%)8829(Top 58%)8829(Top 795%)
40K24.85 mi0.85 mi17499+13511135+6211135+6213922(Top 52%)9212(Top 61%)9212(Top 830%)
25.2M25.20 mi0.35 mi17438+6111104+3111104+3114066(Top 53%)9284(Top 61%)9284(Top 836%)
Finish26.22 mi1.02 mi17410+2811079+2511079+2516390(Top 62%)10335(Top 68%)10335(Top 931%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

18651

Males

11740

M60-64

11740

5K→10K

3.1 - 6.2 mi

Top 71%
×5stories
+79ft-138ft

Overall

18944

Males

11872

M60-64

11872

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

18651

Males

11740

M60-64

11740

15K→20K

9.3 - 12.4 mi

Top 70%
×5stories
+106ft-86ft

Overall

18757

Males

11791

M60-64

11791

20K→Half

12.4 - 13.1 mi

Top 73%
×2stories
+19ft-37ft

Overall

19543

Males

12106

M60-64

12106

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

17455

Males

11176

M60-64

11176

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

17427

Males

11091

M60-64

11091

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16740

Males

10722

M60-64

10722

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

15872

Males

10300

M60-64

10300

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

17484

Males

10922

M60-64

10922

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

15896

Males

10201

M60-64

10201

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

12937

Males

8829

M60-64

8829

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13922

Males

9212

M60-64

9212

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14066

Males

9284

M60-64

9284

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

16390

Males

10335

M60-64

10335

Passing Analysis

Category:
Athletes Passed
2086
Passed By
1246
Net Change
+840
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18250
5K → 10K186524-338#18250#18588
10K → 15K176179-3#18588#18591
15K → 20K151188-37#18591#18628
20K → Half1461-47#18628#18675
Half → 25K23736+201#18675#18474
25K → 30K30070+230#18474#18244
30K → 20M15029+121#18244#18123
20M → 21M17920+159#18123#17964
21M → 35K4540+5#17964#17959
35K → 23M14334+109#17959#17850
23M → 24M2171+216#17850#17634
24M → 40K14712+135#17634#17499
40K → 25.2M654+61#17499#17438
25.2M → Finish7648+28#17438#17410
TOTALS20861246+840
📊

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