Karl Schaefer

Bib: 27716M

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
36:08
Rank: #26285
Start5K
36:08 | 11:38/mi
10K· 6.21 mi
1:12:52
Rank: #26241 (+44)
5K10K
36:44 | 11:49/mi
15K· 9.32 mi
1:50:22
Rank: #26200 (+41)
10K15K
37:30 | 12:04/mi
20K· 12.43 mi
2:28:28
Rank: #26128 (+72)
15K20K
38:06 | 12:16/mi
Half· 13.11 mi
2:36:13
Rank: #26093 (+35)
20KHalf
7:45 | 11:22/mi
25K· 15.53 mi
3:10:45
Rank: #26198 (-105)
Half25K
34:32 | 14:15/mi
30K· 18.64 mi
3:53:36
Rank: #26151 (+47)
25K30K
42:51 | 13:48/mi
20M
4:13:41
Rank: #26165 (-14)
30K20M
20:05 | 14:47/mi
21M
4:29:01
Rank: #26169 (-4)
20M21M
15:20 | 15:20/mi
35K· 21.75 mi
4:38:24
Rank: #26140 (+29)
21M35K
9:23 | 12:33/mi
23M
4:54:54
Rank: #26116 (+24)
35K23M
16:30 | 13:11/mi
24M
5:06:03
Rank: #26049 (+67)
23M24M
11:09 | 11:09/mi
40K· 24.85 mi
5:18:29
Rank: #26059 (-10)
24M40K
12:26 | 14:33/mi
25.2M
5:24:47
Rank: #26088 (-29)
40K25.2M
6:18 | 18:16/mi
Finish· 26.22 mi
5:37:59
Rank: #26090 (-2)
25.2MFinish
13:12 | 12:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:36:13
Pace11:55 /mi
2nd Half
Distance13.11 mi
Time3:01:46
Pace13:52 /mi
📊Positive Split: 16.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1136:0811:3836:08
11:38
-
10K
6.21 mi12:29:551:12:5211:4436:44
11:49
+0:11
15K
9.32 mi13:07:251:50:2211:5037:30
12:04
+0:15
20K
12.43 mi13:45:312:28:2811:5738:06
12:16
+0:12
Half
13.11 mi13:53:162:36:1311:557:45
11:22
-0:54
25K
15.53 mi14:27:483:10:4512:1734:32
14:15
+2:53
30K
18.64 mi15:10:393:53:3612:3242:51
13:48
-0:27
20M
20.00 mi15:30:444:13:4112:4120:05
14:47
+0:59
21M
21.00 mi15:46:044:29:0112:4915:20
15:20
+0:33
35K
21.75 mi15:55:274:38:2412:489:23
12:33
-2:47
23M
23.00 mi16:11:574:54:5412:4916:30
13:11
+0:38
24M
24.00 mi16:23:065:06:0312:4511:09
11:09
-2:02
40K
24.85 mi16:35:325:18:2912:4912:26
14:33
+3:24
25.2M
25.20 mi16:41:505:24:4712:536:18
18:16
+3:43
Finish
26.22 mi16:55:025:37:5912:5413:12
12:57
-5:19

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

11:09 /mi

Average Pace

12:54 /mi

Slowest Pace

18:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:46

27% of race

Time at Steady Pace

2:37:32

47% of race

Time at Slower Pace

1:28:41

26% of race

Average Pace: 12:53 /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 mi11:53:1136:0811:3836:08
11:38
#26285
10K
6.21 mi12:29:551:12:5211:4436:44
11:49
#26241
15K
9.32 mi13:07:251:50:2211:5037:30
12:04
#26200
20K
12.43 mi13:45:312:28:2811:5738:06
12:16
#26128
Half
13.11 mi13:53:162:36:1311:557:45
11:22
#26093
25K
15.53 mi14:27:483:10:4512:1734:32
14:15
#26198
30K
18.64 mi15:10:393:53:3612:3242:51
13:48
#26151
20M
20.00 mi15:30:444:13:4112:4120:05
14:47
#26165
21M
21.00 mi15:46:044:29:0112:4915:20
15:20
#26169
35K
21.75 mi15:55:274:38:2412:489:23
12:33
#26140
23M
23.00 mi16:11:574:54:5412:4916:30
13:11
#26116
24M
24.00 mi16:23:065:06:0312:4511:09
11:09
#26049
40K
24.85 mi16:35:325:18:2912:4912:26
14:33
#26059
25.2M
25.20 mi16:41:505:24:4712:536:18
18:16
#26088
Finish
26.22 mi16:55:025:37:5912:5413:12
12:57
#26090
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi26285150421504226102(Top 98%)14976(Top 99%)14976(Top 730%)
10K6.21 mi3.10 mi26241+4415026+1615026+1626167(Top 98%)14997(Top 99%)14997(Top 731%)
15K9.32 mi3.11 mi26200+4115013+1315013+1326102(Top 98%)14976(Top 99%)14976(Top 730%)
20K12.43 mi3.11 mi26128+7214986+2714986+2725816(Top 97%)14845(Top 98%)14845(Top 723%)
Half13.11 mi0.68 mi26093+3514972+1414972+1425342(Top 95%)14630(Top 96%)14630(Top 713%)
25K15.53 mi2.42 mi26198-10515011-3915011-3926423(Top 99%)15081(Top 99%)15081(Top 735%)
30K18.64 mi3.11 mi26151+4714982+2914982+2925914(Top 97%)14834(Top 98%)14834(Top 723%)
20M20.00 mi1.36 mi26165-1414984-214984-226218(Top 98%)14956(Top 99%)14956(Top 729%)
21M21.00 mi1.00 mi26169-4149841498425914(Top 97%)14833(Top 98%)14833(Top 723%)
35K21.75 mi0.75 mi26140+2914969+1514969+1525222(Top 95%)14430(Top 95%)14430(Top 703%)
23M23.00 mi1.25 mi26116+2414959+1014959+1025257(Top 95%)14465(Top 95%)14465(Top 705%)
24M24.00 mi1.00 mi26049+6714928+3114928+3123316(Top 88%)13491(Top 89%)13491(Top 657%)
40K24.85 mi0.85 mi26059-1014932-414932-425965(Top 98%)14787(Top 97%)14787(Top 721%)
25.2M25.20 mi0.35 mi26088-2914936-414936-426521(Top 100%)15113(Top 100%)15113(Top 737%)
Finish26.22 mi1.02 mi26090-214939-314939-325948(Top 97%)14781(Top 97%)14781(Top 720%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21stories
+97ft-345ft

Overall

26102

Males

14976

M50-54

14976

5K→10K

3.1 - 6.2 mi

Top 98%
×5stories
+79ft-138ft

Overall

26167

Males

14997

M50-54

14997

10K→15K

6.2 - 9.3 mi

Top 98%
×3stories
+67ft-78ft

Overall

26102

Males

14976

M50-54

14976

15K→20K

9.3 - 12.4 mi

Top 97%
×5stories
+106ft-86ft

Overall

25816

Males

14845

M50-54

14845

20K→Half

12.4 - 13.1 mi

Top 95%
×2stories
+19ft-37ft

Overall

25342

Males

14630

M50-54

14630

Half→25K

13.1 - 15.5 mi

Top 99%
×4stories
+66ft-88ft

Overall

26423

Males

15081

M50-54

15081

25K→30K

15.5 - 18.6 mi

Top 97%
×9stories
+181ft-148ft

Overall

25914

Males

14834

M50-54

14834

30K→20M

18.6 - 20.0 mi

Top 98%
×5stories
+64ft-50ft

Overall

26218

Males

14956

M50-54

14956

20M→21M

20.0 - 21.0 mi

Top 97%
×8stories
+106ft-24ft

Overall

25914

Males

14833

M50-54

14833

21M→35K

21.0 - 21.8 mi

Top 95%
×7stories
+17ft-86ft

Overall

25222

Males

14430

M50-54

14430

35K→23M

21.8 - 23.0 mi

Top 95%
×5stories
+23ft-63ft

Overall

25257

Males

14465

M50-54

14465

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

23316

Males

13491

M50-54

13491

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

25965

Males

14787

M50-54

14787

40K→25.2M

24.9 - 25.2 mi

Top 100%
×1story
+13ft-16ft

Overall

26521

Males

15113

M50-54

15113

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2stories
+22ft-21ft

Overall

25948

Males

14781

M50-54

14781

Passing Analysis

Category:
Athletes Passed
525
Passed By
330
Net Change
+195
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26285
5K10K8541+44#26285#26241
10K15K7130+41#26241#26200
15K20K819+72#26200#26128
20KHalf350+35#26128#26093
Half25K7112-105#26093#26198
25K30K7023+47#26198#26151
30K20M1529-14#26151#26165
20M21M913-4#26165#26169
21M35K312+29#26169#26140
35K23M317+24#26140#26116
23M24M670+67#26116#26049
24M40K1323-10#26049#26059
40K25.2M130-29#26059#26088
25.2MFinish911-2#26088#26090
TOTALS525330+195
📊

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