Stefan Harmsen

Bib: 31564 M DE

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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:52/mi
30:40
97345
10K· 6.21 mi
9:38/mi
1:00:35
79138
15K· 9.32 mi
9:27/mi
1:29:56
6778
20K· 12.43 mi
9:28/mi
1:59:22
10686
Half· 13.11 mi
9:18/mi
2:05:43
1937
25K· 15.53 mi
9:54/mi
2:29:42
6688
30K· 18.64 mi
10:09/mi
3:01:15
181148
20M
10:59/mi
3:16:11
6450
21M
12:19/mi
3:28:30
10624
35K· 21.75 mi
10:11/mi
3:36:07
1786
23M
11:01/mi
3:49:55
2363
24M
10:17/mi
4:00:12
82
40K· 24.85 mi
10:53/mi
4:09:30
20
25.2M
14:07/mi
4:14:22
1316
Finish· 26.22 mi
10:18/mi
4:24:52
2221
Course Elevation
7469 ft
×2stacked redwood trees
890 ft climb · 1342 ft descent

The Course

Half Splits

1st Half· via Half
2:05:439:35 /mi⚡ faster
2nd Half
2:19:0910:37 /mi+10.7%
Positive split — 10.7% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
30:409:523.11 mi30:40
9:52
-
10K
1:00:359:453.10 mi29:55
9:38
-0:14
15K
1:29:569:393.11 mi29:21
9:27
-0:11
20K
1:59:229:363.11 mi29:26
9:28
+0:01
Half(13.11 mi)
2:05:439:350.68 mi6:21
9:18
-0:10
25K
2:29:429:382.42 mi23:59
9:54
+0:36
30K
3:01:159:433.11 mi31:33
10:09
+0:15
20M
3:16:119:491.36 mi14:56
10:59
+0:50
21M
3:28:309:561.00 mi12:19
12:19
+1:20
35K
3:36:079:560.75 mi7:37
10:11
-2:08
23M
3:49:5510:001.25 mi13:48
11:01
+0:50
24M
4:00:1210:011.00 mi10:17
10:17
-0:44
40K
4:09:3010:020.85 mi9:18
10:53
+0:36
25.2M
4:14:2210:060.35 mi4:52
14:07
+3:14
Finish(26.22 mi)
4:24:5210:071.02 mi10:30
10:18
-3:49
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:18 /mi

Average Pace

10:07 /mi

Slowest Pace

14:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:05:08

25% of race

Time at Steady Pace

2:24:31

55% of race

Time at Slower Pace

55:13

21% of race

Average Pace: 10:06 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi231161363713637220981323413234
10K3.10 mi23034+8213629+813629+8228731358013580
15K3.11 mi22726+30813506+12313506+123220981323413234
20K3.11 mi22411+31513356+15013356+150214751294312943
Half(13.11 mi)0.68 mi22374+3713338+1813338+18215231297712977
25K2.42 mi22313+6113283+5513283+55219671312813128
30K3.11 mi22133+18013200+8313200+83214261281712817
20M1.36 mi22180-4713212-1213212-12226831331213312
21M1.00 mi22241-6113226-1413226-14232181353213532
35K0.75 mi22214+2713210+1613210+16217331281512815
23M1.25 mi22239-251321013210223851310313103
24M1.00 mi22201+3813190+2013190+20215211264412644
40K0.85 mi22205-413182+813182+8220991288512885
25.2M0.35 mi22278-7313212-3013212-30250721431414314
Finish(26.22 mi)1.02 mi22294-1613208+413208+4225561311513115

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

22098

Males

13234

M50-54

13234

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

22873

Males

13580

M50-54

13580

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

22098

Males

13234

M50-54

13234

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

21475

Males

12943

M50-54

12943

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

21523

Males

12977

M50-54

12977

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

21967

Males

13128

M50-54

13128

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

21426

Males

12817

M50-54

12817

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

22683

Males

13312

M50-54

13312

20M→21M

20.0 - 21.0 mi

Top 87%
×8story building
+106ft-24ft

Overall

23218

Males

13532

M50-54

13532

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

21733

Males

12815

M50-54

12815

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

22385

Males

13103

M50-54

13103

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

21521

Males

12644

M50-54

12644

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

22099

Males

12885

M50-54

12885

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

25072

Males

14314

M50-54

14314

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

22556

Males

13115

M50-54

13115

Passing Analysis

Category:
Net Change
+0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#23116
5K10K
178260+82
#23116 #23034
10K15K
40348+308
#23034 #22726
15K20K
21336+315
#22726 #22411
20KHalf
1047+37
#22411 #22374
Half25K
69130+61
#22374 #22313
25K30K
41221+180
#22313 #22133
30K20M
9548-47
#22133 #22180
20M21M
9837-61
#22180 #22241
21M35K
1845+27
#22241 #22214
35K23M
6944-25
#22214 #22239
23M24M
2260+38
#22239 #22201
24M40K
3935-4
#22201 #22205
40K25.2M
785-73
#22205 #22278
25.2MFinish
3822-16
#22278 #22294
TOTALS
8161638+822
#23116 #22294

Passing Visualized

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