Lief Sorensen

Bib: 7030M

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 14%
Gender (Male)
#0 / 14578
Top 23%
Masters (Masters Men)
#0 / 9729
Top 12%
Division (M45-49)
#0 / 2218
Top 14%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:09
Rank: #5690
Start5K
21:09 | 6:48/mi
10K· 6.21 mi
42:18
Rank: #5484 (+206)
5K10K
21:09 | 6:48/mi
15K· 9.32 mi
1:03:14
Rank: #5033 (+451)
10K15K
20:56 | 6:44/mi
20K· 12.43 mi
1:24:40
Rank: #4857 (+176)
15K20K
21:26 | 6:54/mi
Half· 13.11 mi
1:29:19
Rank: #4837 (+20)
20KHalf
4:39 | 6:49/mi
25K· 15.53 mi
1:46:14
Rank: #4638 (+199)
Half25K
16:55 | 6:59/mi
30K· 18.64 mi
2:08:40
Rank: #4436 (+202)
25K30K
22:26 | 7:13/mi
20M
2:18:34
Rank: #4286 (+150)
30K20M
9:54 | 7:17/mi
21M
2:26:22
Rank: #4133 (+153)
20M21M
7:48 | 7:48/mi
35K· 21.75 mi
2:31:43
Rank: #4065 (+68)
21M35K
5:21 | 7:09/mi
23M
2:40:57
Rank: #3911 (+154)
35K23M
9:14 | 7:22/mi
24M
2:48:18
Rank: #3838 (+73)
23M24M
7:21 | 7:21/mi
40K· 24.85 mi
2:54:38
Rank: #3742 (+96)
24M40K
6:20 | 7:24/mi
25.2M
2:57:26
Rank: #3697 (+45)
40K25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
3:04:36
Rank: #3622 (+75)
25.2MFinish
7:10 | 7:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:19
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:35:17
Pace7:16 /mi
📊Positive Split: 6.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:2821:096:4821:09
6:48
-
10K
6.21 mi10:49:3742:186:4821:09
6:48
0:00
15K
9.32 mi11:10:331:03:146:4720:56
6:44
-0:04
20K
12.43 mi11:31:591:24:406:4921:26
6:54
+0:10
Half
13.11 mi11:36:381:29:196:494:39
6:49
-0:05
25K
15.53 mi11:53:331:46:146:5016:55
6:59
+0:10
30K
18.64 mi12:15:592:08:406:5422:26
7:13
+0:14
20M
20.00 mi12:25:532:18:346:569:54
7:17
+0:04
21M
21.00 mi12:33:412:26:226:587:48
7:48
+0:31
35K
21.75 mi12:39:022:31:436:595:21
7:09
-0:39
23M
23.00 mi12:48:162:40:577:009:14
7:22
+0:13
24M
24.00 mi12:55:372:48:187:017:21
7:21
-0:01
40K
24.85 mi13:01:572:54:387:026:20
7:24
+0:03
25.2M
25.20 mi13:04:452:57:267:022:48
8:07
+0:43
Finish
26.22 mi13:11:553:04:367:037:10
7:02
-1:05

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

6:44 /mi

Average Pace

7:03 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:19

48% of race

Time at Steady Pace

1:01:46

33% of race

Time at Slower Pace

33:31

18% of race

Average Pace: 7:02 /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 mi10:28:2821:096:4821:09
6:48
#5690
10K
6.21 mi10:49:3742:186:4821:09
6:48
#5484
15K
9.32 mi11:10:331:03:146:4720:56
6:44
#5033
20K
12.43 mi11:31:591:24:406:4921:26
6:54
#4857
Half
13.11 mi11:36:381:29:196:494:39
6:49
#4837
25K
15.53 mi11:53:331:46:146:5016:55
6:59
#4638
30K
18.64 mi12:15:592:08:406:5422:26
7:13
#4436
20M
20.00 mi12:25:532:18:346:569:54
7:17
#4286
21M
21.00 mi12:33:412:26:226:587:48
7:48
#4133
35K
21.75 mi12:39:022:31:436:595:21
7:09
#4065
23M
23.00 mi12:48:162:40:577:009:14
7:22
#3911
24M
24.00 mi12:55:372:48:187:017:21
7:21
#3838
40K
24.85 mi13:01:572:54:387:026:20
7:24
#3742
25.2M
25.20 mi13:04:452:57:267:022:48
8:07
#3697
Finish
26.22 mi13:11:553:04:367:037:10
7:02
#3622
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi5690519651964198(Top 16%)3934(Top 27%)3934(Top 177%)
10K6.21 mi3.10 mi5484+2065028+1685028+1685239(Top 21%)4831(Top 33%)4831(Top 218%)
15K9.32 mi3.11 mi5033+4514658+3704658+3704198(Top 16%)3934(Top 27%)3934(Top 177%)
20K12.43 mi3.11 mi4857+1764501+1574501+1574610(Top 18%)4246(Top 29%)4246(Top 191%)
Half13.11 mi0.68 mi4837+204481+204481+204568(Top 18%)4206(Top 29%)4206(Top 190%)
25K15.53 mi2.42 mi4638+1994299+1824299+1824234(Top 17%)3890(Top 27%)3890(Top 175%)
30K18.64 mi3.11 mi4436+2024101+1984101+1983865(Top 15%)3509(Top 24%)3509(Top 158%)
20M20.00 mi1.36 mi4286+1503966+1353966+1353475(Top 14%)3144(Top 22%)3144(Top 142%)
21M21.00 mi1.00 mi4133+1533822+1443822+1443455(Top 14%)3061(Top 21%)3061(Top 138%)
35K21.75 mi0.75 mi4065+683754+683754+683589(Top 14%)3164(Top 22%)3164(Top 143%)
23M23.00 mi1.25 mi3911+1543607+1473607+1473164(Top 12%)2788(Top 19%)2788(Top 126%)
24M24.00 mi1.00 mi3838+733529+783529+783538(Top 14%)3006(Top 21%)3006(Top 136%)
40K24.85 mi0.85 mi3742+963441+883441+883164(Top 12%)2675(Top 18%)2675(Top 121%)
25.2M25.20 mi0.35 mi3697+453398+433398+433092(Top 12%)2581(Top 18%)2581(Top 116%)
Finish26.22 mi1.02 mi3622+753316+823316+823274(Top 13%)2717(Top 19%)2717(Top 122%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4198

Males

3934

M45-49

3934

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5239

Males

4831

M45-49

4831

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4198

Males

3934

M45-49

3934

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4610

Males

4246

M45-49

4246

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

4568

Males

4206

M45-49

4206

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4234

Males

3890

M45-49

3890

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

3865

Males

3509

M45-49

3509

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3475

Males

3144

M45-49

3144

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3455

Males

3061

M45-49

3061

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3589

Males

3164

M45-49

3164

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3164

Males

2788

M45-49

2788

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3538

Males

3006

M45-49

3006

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3164

Males

2675

M45-49

2675

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3092

Males

2581

M45-49

2581

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3274

Males

2717

M45-49

2717

Passing Analysis

Category:
Athletes Passed
2540
Passed By
472
Net Change
+2068
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5690
5K10K29286+206#5690#5484
10K15K4609+451#5484#5033
15K20K24771+176#5033#4857
20KHalf3616+20#4857#4837
Half25K26768+199#4837#4638
25K30K28987+202#4638#4436
30K20M17525+150#4436#4286
20M21M17825+153#4286#4133
21M35K7810+68#4133#4065
35K23M17016+154#4065#3911
23M24M10633+73#3911#3838
24M40K1026+96#3838#3742
40K25.2M483+45#3742#3697
25.2MFinish9217+75#3697#3622
TOTALS2540472+2068
📊

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