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BOSTON MARATHON 2023

Dan Cerny

Bib: 14774•M

OR

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:01
Rank: #11725
Start → 5K
24:01 | 7:44/mi
10K· 6.21 mi
48:26
Rank: #12643 (-918)
5K → 10K
24:25 | 7:52/mi
15K· 9.32 mi
1:13:47
Rank: #13706 (-1063)
10K → 15K
25:21 | 8:10/mi
20K· 12.43 mi
1:39:38
Rank: #14230 (-524)
15K → 20K
25:51 | 8:19/mi
Half· 13.11 mi
1:45:25
Rank: #14432 (-202)
20K → Half
5:47 | 8:29/mi
25K· 15.53 mi
2:05:58
Rank: #14711 (-279)
Half → 25K
20:33 | 8:29/mi
30K· 18.64 mi
2:33:03
Rank: #14887 (-176)
25K → 30K
27:05 | 8:43/mi
20M
2:45:01
Rank: #14912 (-25)
30K → 20M
11:58 | 8:48/mi
21M
2:54:27
Rank: #14929 (-17)
20M → 21M
9:26 | 9:26/mi
35K· 21.75 mi
3:00:55
Rank: #14974 (-45)
21M → 35K
6:28 | 8:39/mi
23M
3:11:56
Rank: #14956 (+18)
35K → 23M
11:01 | 8:48/mi
24M
3:20:36
Rank: #14953 (+3)
23M → 24M
8:40 | 8:40/mi
40K· 24.85 mi
3:28:18
Rank: #14974 (-21)
24M → 40K
7:42 | 9:00/mi
25.2M
3:31:39
Rank: #14998 (-24)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:40:28
Rank: #15053 (-55)
25.2M → Finish
8:49 | 8:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:25
Pace8:02 /mi
2nd Half
Distance13.11 mi
Time1:55:03
Pace8:47 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:0324:017:4424:01
7:44
-
10K
6.21 mi12:04:2848:267:4824:25
7:52
+0:08
15K
9.32 mi12:29:491:13:477:5525:21
8:10
+0:18
20K
12.43 mi12:55:401:39:388:0125:51
8:19
+0:09
Half
13.11 mi13:01:271:45:258:025:47
8:29
+0:10
25K
15.53 mi13:22:002:05:588:0720:33
8:29
0:00
30K
18.64 mi13:49:052:33:038:1327:05
8:43
+0:14
20M
20.00 mi14:01:032:45:018:1511:58
8:48
+0:05
21M
21.00 mi14:10:292:54:278:189:26
9:26
+0:38
35K
21.75 mi14:16:573:00:558:196:28
8:39
-0:47
23M
23.00 mi14:27:583:11:568:2111:01
8:48
+0:09
24M
24.00 mi14:36:383:20:368:228:40
8:40
-0:08
40K
24.85 mi14:44:203:28:188:237:42
9:00
+0:20
25.2M
25.20 mi14:47:413:31:398:243:21
9:43
+0:43
Finish
26.22 mi14:56:303:40:288:258:49
8:39
-1:04

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

7:44 /mi

Average Pace

8:25 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:38

45% of race

Time at Steady Pace

1:40:21

46% of race

Time at Slower Pace

20:29

9% of race

Average Pace: 8:25 /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 mi11:40:0324:017:4424:01
7:44
#11725
10K
6.21 mi12:04:2848:267:4824:25
7:52
#12643
15K
9.32 mi12:29:491:13:477:5525:21
8:10
#13706
20K
12.43 mi12:55:401:39:388:0125:51
8:19
#14230
Half
13.11 mi13:01:271:45:258:025:47
8:29
#14432
25K
15.53 mi13:22:002:05:588:0720:33
8:29
#14711
30K
18.64 mi13:49:052:33:038:1327:05
8:43
#14887
20M
20.00 mi14:01:032:45:018:1511:58
8:48
#14912
21M
21.00 mi14:10:292:54:278:189:26
9:26
#14929
35K
21.75 mi14:16:573:00:558:196:28
8:39
#14974
23M
23.00 mi14:27:583:11:568:2111:01
8:48
#14956
24M
24.00 mi14:36:383:20:368:228:40
8:40
#14953
40K
24.85 mi14:44:203:28:188:237:42
9:00
#14974
25.2M
25.20 mi14:47:413:31:398:243:21
9:43
#14998
Finish
26.22 mi14:56:303:40:288:258:49
8:39
#15053
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi117259006900615561(Top 58%)10523(Top 69%)10523(Top 513%)
10K6.21 mi3.10 mi12643-9189397-3919397-39113630(Top 51%)9806(Top 65%)9806(Top 478%)
15K9.32 mi3.11 mi13706-10639804-4079804-40715561(Top 58%)10523(Top 69%)10523(Top 513%)
20K12.43 mi3.11 mi14230-5249994-1909994-19015721(Top 59%)10527(Top 69%)10527(Top 513%)
Half13.11 mi0.68 mi14432-20210080-8610080-8617537(Top 66%)11298(Top 74%)11298(Top 551%)
25K15.53 mi2.42 mi14711-27910164-8410164-8416036(Top 60%)10550(Top 70%)10550(Top 514%)
30K18.64 mi3.11 mi14887-17610198-3410198-3415595(Top 59%)10303(Top 68%)10303(Top 502%)
20M20.00 mi1.36 mi14912-2510180+1810180+1815443(Top 58%)10184(Top 67%)10184(Top 496%)
21M21.00 mi1.00 mi14929-1710163+1710163+1715621(Top 59%)10182(Top 67%)10182(Top 496%)
35K21.75 mi0.75 mi14974-4510156+710156+716059(Top 60%)10309(Top 68%)10309(Top 502%)
23M23.00 mi1.25 mi14956+1810131+2510131+2514969(Top 56%)9797(Top 65%)9797(Top 477%)
24M24.00 mi1.00 mi14953+310106+2510106+2515437(Top 58%)9915(Top 65%)9915(Top 483%)
40K24.85 mi0.85 mi14974-2110093+1310093+1316134(Top 61%)10178(Top 67%)10178(Top 496%)
25.2M25.20 mi0.35 mi14998-2410091+210091+216115(Top 61%)10159(Top 67%)10159(Top 495%)
Finish26.22 mi1.02 mi15053-5510093-210093-216231(Top 61%)10252(Top 68%)10252(Top 500%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

15561

Males

10523

M50-54

10523

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

13630

Males

9806

M50-54

9806

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

15561

Males

10523

M50-54

10523

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

15721

Males

10527

M50-54

10527

20K→Half

12.4 - 13.1 mi

Top 66%
×2stories
+19ft-37ft

Overall

17537

Males

11298

M50-54

11298

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

16036

Males

10550

M50-54

10550

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

15595

Males

10303

M50-54

10303

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

15443

Males

10184

M50-54

10184

20M→21M

20.0 - 21.0 mi

Top 59%
×8stories
+106ft-24ft

Overall

15621

Males

10182

M50-54

10182

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

16059

Males

10309

M50-54

10309

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

14969

Males

9797

M50-54

9797

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

15437

Males

9915

M50-54

9915

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16134

Males

10178

M50-54

10178

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16115

Males

10159

M50-54

10159

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

16231

Males

10252

M50-54

10252

Passing Analysis

Category:
Athletes Passed
814
Passed By
4142
Net Change
-3328
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11725
5K → 10K66984-918#11725#12643
10K → 15K231086-1063#12643#13706
15K → 20K65589-524#13706#14230
20K → Half2204-202#14230#14432
Half → 25K74353-279#14432#14711
25K → 30K122298-176#14711#14887
30K → 20M6994-25#14887#14912
20M → 21M7996-17#14912#14929
21M → 35K4085-45#14929#14974
35K → 23M8567+18#14974#14956
23M → 24M6865+3#14956#14953
24M → 40K5778-21#14953#14974
40K → 25.2M2448-24#14974#14998
25.2M → Finish4095-55#14998#15053
TOTALS8144142-3328
📊

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