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BOSTON MARATHON 2023

Josh Janicek

Bib: 8496•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 18%
Gender (Male)
#0 / 15176
Top 29%
Masters (Masters Men)
#0 / 9891
Top 15%
Division (M45-49)
#0 / 2252
Top 18%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:10
Rank: #2235
Start → 5K
20:10 | 6:29/mi
10K· 6.21 mi
40:24
Rank: #2511 (-276)
5K → 10K
20:14 | 6:31/mi
15K· 9.32 mi
1:00:39
Rank: #2573 (-62)
10K → 15K
20:15 | 6:31/mi
20K· 12.43 mi
1:21:00
Rank: #2557 (+16)
15K → 20K
20:21 | 6:33/mi
Half· 13.11 mi
1:25:26
Rank: #2564 (-7)
20K → Half
4:26 | 6:30/mi
25K· 15.53 mi
1:41:29
Rank: #2589 (-25)
Half → 25K
16:03 | 6:37/mi
30K· 18.64 mi
2:03:50
Rank: #2997 (-408)
25K → 30K
22:21 | 7:12/mi
20M
2:13:23
Rank: #3064 (-67)
30K → 20M
9:33 | 7:02/mi
21M
2:20:25
Rank: #2996 (+68)
20M → 21M
7:02 | 7:02/mi
35K· 21.75 mi
2:25:33
Rank: #3045 (-49)
21M → 35K
5:08 | 6:52/mi
23M
2:36:07
Rank: #3630 (-585)
35K → 23M
10:34 | 8:26/mi
24M
2:43:53
Rank: #3989 (-359)
23M → 24M
7:46 | 7:46/mi
40K· 24.85 mi
2:51:02
Rank: #4360 (-371)
24M → 40K
7:09 | 8:22/mi
25.2M
2:54:22
Rank: #4528 (-168)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:03:00
Rank: #4833 (-305)
25.2M → Finish
8:38 | 8:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:26
Pace6:31 /mi
2nd Half
Distance13.11 mi
Time1:37:34
Pace7:27 /mi
📊Positive Split: 14.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:2120:106:2920:10
6:29
-
10K
6.21 mi11:05:3540:246:3020:14
6:31
+0:02
15K
9.32 mi11:25:501:00:396:3020:15
6:31
0:00
20K
12.43 mi11:46:111:21:006:3120:21
6:33
+0:02
Half
13.11 mi11:50:371:25:266:314:26
6:30
-0:03
25K
15.53 mi12:06:401:41:296:3216:03
6:37
+0:07
30K
18.64 mi12:29:012:03:506:3922:21
7:12
+0:35
20M
20.00 mi12:38:342:13:236:409:33
7:02
-0:10
21M
21.00 mi12:45:362:20:256:417:02
7:02
0:00
35K
21.75 mi12:50:442:25:336:425:08
6:52
-0:10
23M
23.00 mi13:01:182:36:076:4710:34
8:26
+1:34
24M
24.00 mi13:09:042:43:536:507:46
7:46
-0:40
40K
24.85 mi13:16:132:51:026:537:09
8:22
+0:36
25.2M
25.20 mi13:19:332:54:226:553:20
9:40
+1:18
Finish
26.22 mi13:28:113:03:006:598:38
8:28
-1:12

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

6:29 /mi

Average Pace

6:59 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:25:26

47% of race

Time at Steady Pace

1:00:07

33% of race

Time at Slower Pace

37:27

20% of race

Average Pace: 6:59 /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 mi10:45:2120:106:2920:10
6:29
#2235
10K
6.21 mi11:05:3540:246:3020:14
6:31
#2511
15K
9.32 mi11:25:501:00:396:3020:15
6:31
#2573
20K
12.43 mi11:46:111:21:006:3120:21
6:33
#2557
Half
13.11 mi11:50:371:25:266:314:26
6:30
#2564
25K
15.53 mi12:06:401:41:296:3216:03
6:37
#2589
30K
18.64 mi12:29:012:03:506:3922:21
7:12
#2997
20M
20.00 mi12:38:342:13:236:409:33
7:02
#3064
21M
21.00 mi12:45:362:20:256:417:02
7:02
#2996
35K
21.75 mi12:50:442:25:336:425:08
6:52
#3045
23M
23.00 mi13:01:182:36:076:4710:34
8:26
#3630
24M
24.00 mi13:09:042:43:536:507:46
7:46
#3989
40K
24.85 mi13:16:132:51:026:537:09
8:22
#4360
25.2M
25.20 mi13:19:332:54:226:553:20
9:40
#4528
Finish
26.22 mi13:28:113:03:006:598:38
8:28
#4833
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi2235213321332751(Top 10%)2628(Top 17%)2628(Top 117%)
10K6.21 mi3.10 mi2511-2762394-2612394-2612886(Top 11%)2758(Top 18%)2758(Top 122%)
15K9.32 mi3.11 mi2573-622459-652459-652751(Top 10%)2628(Top 17%)2628(Top 117%)
20K12.43 mi3.11 mi2557+162446+132446+132576(Top 10%)2465(Top 16%)2465(Top 109%)
Half13.11 mi0.68 mi2564-72456-102456-102842(Top 11%)2726(Top 18%)2726(Top 121%)
25K15.53 mi2.42 mi2589-252477-212477-212830(Top 11%)2706(Top 18%)2706(Top 120%)
30K18.64 mi3.11 mi2997-4082859-3822859-3825450(Top 20%)4957(Top 33%)4957(Top 220%)
20M20.00 mi1.36 mi3064-672918-592918-594234(Top 16%)3906(Top 26%)3906(Top 173%)
21M21.00 mi1.00 mi2996+682852+662852+662256(Top 8%)2130(Top 14%)2130(Top 95%)
35K21.75 mi0.75 mi3045-492892-402892-404573(Top 17%)4164(Top 27%)4164(Top 185%)
23M23.00 mi1.25 mi3630-5853428-5363428-53612800(Top 48%)8806(Top 58%)8806(Top 391%)
24M24.00 mi1.00 mi3989-3593735-3073735-3079484(Top 36%)7132(Top 47%)7132(Top 317%)
40K24.85 mi0.85 mi4360-3714072-3374072-33712408(Top 47%)8489(Top 56%)8489(Top 377%)
25.2M25.20 mi0.35 mi4528-1684215-1434215-14315863(Top 60%)10027(Top 66%)10027(Top 445%)
Finish26.22 mi1.02 mi4833-3054458-2434458-24315191(Top 57%)9797(Top 65%)9797(Top 435%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2751

Males

2628

M45-49

2628

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

2886

Males

2758

M45-49

2758

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2751

Males

2628

M45-49

2628

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2576

Males

2465

M45-49

2465

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

2842

Males

2726

M45-49

2726

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

2830

Males

2706

M45-49

2706

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5450

Males

4957

M45-49

4957

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4234

Males

3906

M45-49

3906

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2256

Males

2130

M45-49

2130

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4573

Males

4164

M45-49

4164

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

12800

Males

8806

M45-49

8806

23M→24M

23.0 - 24.0 mi

Top 36%
×6stories
+12ft-82ft

Overall

9484

Males

7132

M45-49

7132

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12408

Males

8489

M45-49

8489

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

15863

Males

10027

M45-49

10027

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2stories
+22ft-21ft

Overall

15191

Males

9797

M45-49

9797

Passing Analysis

Category:
Athletes Passed
389
Passed By
2987
Net Change
-2598
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2235
5K → 10K42318-276#2235#2511
10K → 15K48110-62#2511#2573
15K → 20K6852+16#2573#2557
20K → Half1017-7#2557#2564
Half → 25K4570-25#2564#2589
25K → 30K18426-408#2589#2997
30K → 20M2289-67#2997#3064
20M → 21M8517+68#3064#2996
21M → 35K2069-49#2996#3045
35K → 23M8593-585#3045#3630
23M → 24M9368-359#3630#3989
24M → 40K6377-371#3989#4360
40K → 25.2M2170-168#4360#4528
25.2M → Finish6311-305#4528#4833
TOTALS3892987-2598
📊

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