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BOSTON MARATHON 2023

Kevin Dean

Bib: 10279•M

OR

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 (M45-49)
#0 / 2252
Top 50%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:03/mi
21:54
↑ 97↓ 3451.5%
10K· 6.21 mi
7:07/mi
44:00
↑ 79↓ 1380.4%
15K· 9.32 mi
7:21/mi
1:06:50
↑ 67↓ 78
20K· 12.43 mi
7:33/mi
1:30:16
↑ 106↓ 860.1%
Half· 13.11 mi
7:26/mi
1:35:20
↑ 19↓ 370.5%
25K· 15.53 mi
7:44/mi
1:54:04
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:18:34
↑ 181↓ 1480.2%
20M
7:52/mi
2:29:15
↑ 64↓ 500.2%
21M
8:28/mi
2:37:43
↑ 106↓ 241.6%
35K· 21.75 mi
7:32/mi
2:43:21
↑ 17↓ 861.7%
23M
8:00/mi
2:53:22
↑ 23↓ 630.6%
24M
7:42/mi
3:01:04
↓ 821.3%
40K· 24.85 mi
8:01/mi
3:07:55
↓ 200.3%
25.2M
8:33/mi
3:10:52
↑ 13↓ 160.2%
Finish· 26.22 mi
7:46/mi
3:18:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:20
Pace7:16 /mi
2nd Half
Distance13.11 mi
Time1:43:27
Pace7:53 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1421:547:0321:54
7:03
-
10K
6.21 mi11:10:2044:007:0522:06
7:07
+0:04
15K
9.32 mi11:33:101:06:507:1022:50
7:21
+0:14
20K
12.43 mi11:56:361:30:167:1623:26
7:33
+0:12
Half
13.11 mi12:01:401:35:207:165:04
7:26
-0:07
25K
15.53 mi12:20:241:54:047:2118:44
7:44
+0:18
30K
18.64 mi12:44:542:18:347:2624:30
7:53
+0:09
20M
20.00 mi12:55:352:29:157:2810:41
7:52
-0:01
21M
21.00 mi13:04:032:37:437:318:28
8:28
+0:36
35K
21.75 mi13:09:412:43:217:315:38
7:32
-0:56
23M
23.00 mi13:19:422:53:227:3210:01
8:00
+0:28
24M
24.00 mi13:27:243:01:047:337:42
7:42
-0:18
40K
24.85 mi13:34:153:07:557:346:51
8:01
+0:19
25.2M
25.20 mi13:37:123:10:527:342:57
8:33
+0:32
Finish
26.22 mi13:45:073:18:477:357:55
7:46
-0:47

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

7:03 /mi

Average Pace

7:35 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:11:54

36% of race

Time at Steady Pace

1:38:36

50% of race

Time at Slower Pace

28:17

14% 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 mi10:48:1421:547:0321:54
7:03
#6558
10K
6.21 mi11:10:2044:007:0522:06
7:07
#6993
15K
9.32 mi11:33:101:06:507:1022:50
7:21
#7555
20K
12.43 mi11:56:361:30:167:1623:26
7:33
#7996
Half
13.11 mi12:01:401:35:207:165:04
7:26
#8057
25K
15.53 mi12:20:241:54:047:2118:44
7:44
#8390
30K
18.64 mi12:44:542:18:347:2624:30
7:53
#8634
20M
20.00 mi12:55:352:29:157:2810:41
7:52
#8651
21M
21.00 mi13:04:032:37:437:318:28
8:28
#8729
35K
21.75 mi13:09:412:43:217:315:38
7:32
#8717
23M
23.00 mi13:19:422:53:227:3210:01
8:00
#8769
24M
24.00 mi13:27:243:01:047:337:42
7:42
#8748
40K
24.85 mi13:34:153:07:557:346:51
8:01
#8780
25.2M
25.20 mi13:37:123:10:527:342:57
8:33
#8779
Finish
26.22 mi13:45:073:18:477:357:55
7:46
#8820
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi6558593159318920(Top 34%)7489(Top 49%)7489(Top 333%)
10K6.21 mi3.10 mi6993-4356252-3216252-3217532(Top 28%)6627(Top 44%)6627(Top 294%)
15K9.32 mi3.11 mi7555-5626655-4036655-4038920(Top 34%)7489(Top 49%)7489(Top 333%)
20K12.43 mi3.11 mi7996-4416932-2776932-2779638(Top 36%)7874(Top 52%)7874(Top 350%)
Half13.11 mi0.68 mi8057-616970-386970-389558(Top 36%)7839(Top 52%)7839(Top 348%)
25K15.53 mi2.42 mi8390-3337160-1907160-19010478(Top 39%)8241(Top 54%)8241(Top 366%)
30K18.64 mi3.11 mi8634-2447272-1127272-11210006(Top 38%)7825(Top 52%)7825(Top 347%)
20M20.00 mi1.36 mi8651-177269+37269+39289(Top 35%)7349(Top 48%)7349(Top 326%)
21M21.00 mi1.00 mi8729-787305-367305-3610249(Top 38%)7727(Top 51%)7727(Top 343%)
35K21.75 mi0.75 mi8717+127278+277278+278697(Top 33%)6914(Top 46%)6914(Top 307%)
23M23.00 mi1.25 mi8769-527284-67284-69714(Top 36%)7337(Top 48%)7337(Top 326%)
24M24.00 mi1.00 mi8748+217249+357249+359066(Top 34%)6922(Top 46%)6922(Top 307%)
40K24.85 mi0.85 mi8780-327240+97240+910098(Top 38%)7379(Top 49%)7379(Top 328%)
25.2M25.20 mi0.35 mi8779+17228+127228+129799(Top 37%)7185(Top 47%)7185(Top 319%)
Finish26.22 mi1.02 mi8820-417239-117239-1110415(Top 39%)7499(Top 49%)7499(Top 333%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

8920

Males

7489

M45-49

7489

5K→10K

3.1 - 6.2 mi

Top 28%
×5story building
+79ft-138ft

Overall

7532

Males

6627

M45-49

6627

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

8920

Males

7489

M45-49

7489

15K→20K

9.3 - 12.4 mi

Top 36%
×5story building
+106ft-86ft

Overall

9638

Males

7874

M45-49

7874

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

9558

Males

7839

M45-49

7839

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

10478

Males

8241

M45-49

8241

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10006

Males

7825

M45-49

7825

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

9289

Males

7349

M45-49

7349

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10249

Males

7727

M45-49

7727

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

8697

Males

6914

M45-49

6914

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

9714

Males

7337

M45-49

7337

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

9066

Males

6922

M45-49

6922

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10098

Males

7379

M45-49

7379

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9799

Males

7185

M45-49

7185

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

10415

Males

7499

M45-49

7499

Passing Analysis

Category:
Athletes Passed
658
Passed By
2920
Net Change
-2262
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6558
5K → 10K55490-435#6558#6993
10K → 15K23585-562#6993#7555
15K → 20K29470-441#7555#7996
20K → Half1071-61#7996#8057
Half → 25K36369-333#8057#8390
25K → 30K89333-244#8390#8634
30K → 20M7087-17#8634#8651
20M → 21M52130-78#8651#8729
21M → 35K4331+12#8729#8717
35K → 23M59111-52#8717#8769
23M → 24M7150+21#8769#8748
24M → 40K4981-32#8748#8780
40K → 25.2M3332+1#8780#8779
25.2M → Finish3980-41#8779#8820
TOTALS6582920-2262
📊

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