Michael Hartzog

Boulder, CO

Bib: 12359 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 15907
Top 42%
Gender (Male)
#0 / 9934
Top 47%
Masters (Masters Men)
#0 / 4070
Top 36%
Division (M45-49)
#0 / 933
Top 41%
Race Day Weather
43°/33°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:53/mi
33:48
279164
10K· 6.21 mi
9:12/mi
1:02:24
103217
15K· 9.32 mi
9:29/mi
1:31:52
5155
21K· 13.05 mi
9:30/mi
2:07:18
2037
25K· 15.53 mi
9:50/mi
2:31:44
35
30K· 18.64 mi
10:04/mi
3:02:59
5857
35K· 21.75 mi
10:00/mi
3:34:02
9892
40K· 24.85 mi
10:24/mi
4:06:21
3653
Finish· 26.22 mi
10:21/mi
4:20:28
8024
Course Elevation
3237 ft
×20story building
764 ft climb · 717 ft descent

The Course

Half Splits

1st Half· via 21K
2:07:189:45 /mi⚡ faster
2nd Half
2:13:0910:07 /mi+4.6%
Positive split — 4.6% 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
33:4810:533.11 mi33:48
10:53
-
10K
1:02:2410:033.10 mi28:36
9:12
-1:41
15K
1:31:529:513.11 mi29:28
9:29
+0:17
21K
2:07:189:453.73 mi35:26
9:30
+0:01
25K
2:31:449:462.48 mi24:26
9:50
+0:20
30K
3:02:599:493.11 mi31:15
10:04
+0:14
35K
3:34:029:503.11 mi31:03
10:00
-0:04
40K
4:06:219:553.10 mi32:19
10:24
+0:24
Finish(26.22 mi)
4:20:289:561.37 mi14:07
10:21
-0:03
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:12 /mi

Average Pace

9:56 /mi

Slowest Pace

10:53 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

3:00:14

69% of race

Time at Steady Pace

46:26

18% of race

Time at Slower Pace

33:48

13% of race

Average Pace: 9:56 /mi

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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. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi11120763066269645139397
10K3.10 mi8916+22046362+1268526+13668365085391
15K3.11 mi8220+6965937+425481+4569645139397
21K3.73 mi7641+5795556+381442+3965844891388
25K2.48 mi7619+225519+37441+178595549459
30K3.11 mi7272+3475260+259418+2364884633368
35K3.11 mi6887+3854946+314396+2257814048323
40K3.10 mi6592+2954693+253378+1857023836309
Finish(26.22 mi)1.37 mi6522+704624+69371+759693969304

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×18story building
+279ft-164ft

Overall

6964

Males

5139

M45-49

5139

5K→10K

3.1 - 6.2 mi

Top 43%
×11story building
+103ft-217ft

Overall

6836

Males

5085

M45-49

5085

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+51ft-55ft

Overall

6964

Males

5139

M45-49

5139

15K→21K

9.3 - 13.1 mi

Top 41%
×1story
+20ft-37ft

Overall

6584

Males

4891

M45-49

4891

21K→25K

13.1 - 15.5 mi

Top 49%
×2story building
+35ft-8ft

Overall

7859

Males

5549

M45-49

5549

25K→30K

15.5 - 18.6 mi

Top 41%
×2story building
+58ft-57ft

Overall

6488

Males

4633

M45-49

4633

30K→35K

18.6 - 21.8 mi

Top 36%
×2story building
+98ft-92ft

Overall

5781

Males

4048

M45-49

4048

35K→40K

21.8 - 24.9 mi

Top 36%
×2story building
+36ft-53ft

Overall

5702

Males

3836

M45-49

3836

40K→Finish

24.9 - 26.2 mi

Top 38%
×5story building
+80ft-24ft

Overall

5969

Males

3969

M45-49

3969

Passing Analysis

Category:
Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 5K-#11120
5K10K
42208*+2204
#11120 #8916
10K15K
9705*+696
#8916 #8220
15K21K
12591*+579
#8220 #7641
21K25K
142164*+22
#7641 #7619
25K30K
41388*+347
#7619 #7272
30K35K
44429*+385
#7272 #6887
35K40K
62357*+295
#6887 #6592
40KFinish
32102*+70
#6592 #6522
TOTALS
3464944*+4598
#11120 #6522

* Includes athletes who did not complete a segment (DNF/DNQ).

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

U.S. Marine Corps Community Services (MCCS)

Timing Productions