Joon Ki Lee

Clarksburg, MD

Bib: 14072 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Top 21%
Gender (Male)
#0 / 17709
Top 27%
Masters (Masters Men)
#0 / 8330
Top 19%
Division (M70-74)
#0 / 142
Top 4%
Race Day Weather
42°/32°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:38/mi
29:55
279164
10K· 6.21 mi
8:54/mi
57:33
103217
15K· 9.32 mi
8:53/mi
1:25:09
5155
21K· 13.05 mi
9:04/mi
1:58:58
2037
25K· 15.53 mi
8:39/mi
2:20:27
35
30K· 18.64 mi
9:09/mi
2:48:53
5857
35K· 21.75 mi
9:04/mi
3:17:02
9892
40K· 24.85 mi
9:14/mi
3:45:43
3653
Finish· 26.22 mi
9:13/mi
3:58:17
8024
Course Elevation
3237 ft
×20story building
764 ft climb · 717 ft descent

The Course

Half Splits

1st Half· via 21K
1:58:589:07 /mi⚖️ balanced
2nd Half
1:59:199:04 /mi⚖️ balanced
Even split — consistent pacing between halves
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
29:559:383.11 mi29:55
9:38
-
10K
57:339:163.10 mi27:38
8:54
-0:44
15K
1:25:099:083.11 mi27:36
8:53
-0:01
21K
1:58:589:073.73 mi33:49
9:04
+0:11
25K
2:20:279:022.48 mi21:29
8:39
-0:25
30K
2:48:539:043.11 mi28:26
9:09
+0:30
35K
3:17:029:043.11 mi28:09
9:04
-0:05
40K
3:45:439:053.10 mi28:41
9:14
+0:10
Finish(26.22 mi)
3:58:179:061.37 mi12:34
9:13
-0:01
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:39 /mi

Average Pace

9:06 /mi

Slowest Pace

9:38 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

3:28:22

87% of race

Time at Steady Pace

29:55

13% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:05 /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. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi9426690713833462128
10K3.10 mi9093+3336719+18812+18757650510
15K3.11 mi8817+2766532+1879+3833462128
21K3.73 mi8541+2766354+17810-18156607710
25K2.48 mi8113+4286064+2909+1659149817
30K3.11 mi7664+4495708+3569675349678
35K3.11 mi7052+6125248+4606+3528938685
40K3.10 mi6573+4794840+4086495034825
Finish(26.22 mi)1.37 mi6434+1394722+1186489934065

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×18story building
+279ft-164ft

Overall

8334

Males

6212

M70-74

6212

5K→10K

3.1 - 6.2 mi

Top 29%
×11story building
+103ft-217ft

Overall

8757

Males

6505

M70-74

6505

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+51ft-55ft

Overall

8334

Males

6212

M70-74

6212

15K→21K

9.3 - 13.1 mi

Top 27%
×1story
+20ft-37ft

Overall

8156

Males

6077

M70-74

6077

21K→25K

13.1 - 15.5 mi

Top 22%
×2story building
+35ft-8ft

Overall

6591

Males

4981

M70-74

4981

25K→30K

15.5 - 18.6 mi

Top 22%
×2story building
+58ft-57ft

Overall

6753

Males

4967

M70-74

4967

30K→35K

18.6 - 21.8 mi

Top 18%
×2story building
+98ft-92ft

Overall

5289

Males

3868

M70-74

3868

35K→40K

21.8 - 24.9 mi

Top 16%
×2story building
+36ft-53ft

Overall

4950

Males

3482

M70-74

3482

40K→Finish

24.9 - 26.2 mi

Top 16%
×5story building
+80ft-24ft

Overall

4899

Males

3406

M70-74

3406

Passing Analysis

Category:
Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 5K-#9426
5K10K
166499*+333
#9426 #9093
10K15K
105381*+276
#9093 #8817
15K21K
110386*+276
#8817 #8541
21K25K
32460*+428
#8541 #8113
25K30K
61510*+449
#8113 #7664
30K35K
41653*+612
#7664 #7052
35K40K
53532*+479
#7052 #6573
40KFinish
44183*+139
#6573 #6434
TOTALS
6123604*+2992
#9426 #6434

* 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