Donald Chung

Rockville, MD

Bib: 10379 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 15907
Top 30%
Gender (Male)
#0 / 9934
Top 36%
Masters (Masters Men)
#0 / 4070
Top 26%
Division (M65-69)
#0 / 169
Top 9%
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
10:21/mi
32:08
279164
10K· 6.21 mi
9:08/mi
1:00:30
103217
15K· 9.32 mi
9:13/mi
1:29:08
5155
21K· 13.05 mi
9:04/mi
2:02:56
2037
25K· 15.53 mi
8:34/mi
2:24:13
35
30K· 18.64 mi
9:17/mi
2:53:05
5857
35K· 21.75 mi
9:09/mi
3:21:31
9892
40K· 24.85 mi
9:20/mi
3:50:31
3653
Finish· 26.22 mi
9:13/mi
4:03:05
8024
Course Elevation
3237 ft
×20story building
764 ft climb · 717 ft descent

The Course

Half Splits

1st Half· via 21K
2:02:569:25 /mi+2.3%
2nd Half
2:00:099:07 /mi✓ faster
Negative split — 2.3% faster 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
32:0810:213.11 mi32:08
10:21
-
10K
1:00:309:443.10 mi28:22
9:08
-1:13
15K
1:29:089:343.11 mi28:38
9:13
+0:05
21K
2:02:569:253.73 mi33:48
9:04
-0:09
25K
2:24:139:172.48 mi21:17
8:34
-0:30
30K
2:53:059:173.11 mi28:52
9:17
+0:43
35K
3:21:319:163.11 mi28:26
9:09
-0:08
40K
3:50:319:163.10 mi29:00
9:20
+0:11
Finish(26.22 mi)
4:03:059:171.37 mi12:34
9:13
-0:07
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:34 /mi

Average Pace

9:17 /mi

Slowest Pace

10:21 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

21:17

9% of race

Time at Steady Pace

3:09:40

78% of race

Time at Slower Pace

32:08

13% of race

Average Pace: 9:16 /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. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi90296422596102459127
10K3.10 mi7776+12535664+75848+116552490136
15K3.11 mi7110+6665246+41839+96102459127
21K3.73 mi6491+6194856+39035+45013384618
25K2.48 mi6033+4584532+32429+63863300113
30K3.11 mi5665+3684243+28928+14532341713
35K3.11 mi5208+4573884+35918+103846283412
40K3.10 mi4813+3953574+31015+33397241512
Finish(26.22 mi)1.37 mi4704+1093494+80153347236511

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×18story building
+279ft-164ft

Overall

6102

Males

4591

M65-69

4591

5K→10K

3.1 - 6.2 mi

Top 41%
×11story building
+103ft-217ft

Overall

6552

Males

4901

M65-69

4901

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+51ft-55ft

Overall

6102

Males

4591

M65-69

4591

15K→21K

9.3 - 13.1 mi

Top 32%
×1story
+20ft-37ft

Overall

5013

Males

3846

M65-69

3846

21K→25K

13.1 - 15.5 mi

Top 24%
×2story building
+35ft-8ft

Overall

3863

Males

3001

M65-69

3001

25K→30K

15.5 - 18.6 mi

Top 28%
×2story building
+58ft-57ft

Overall

4532

Males

3417

M65-69

3417

30K→35K

18.6 - 21.8 mi

Top 24%
×2story building
+98ft-92ft

Overall

3846

Males

2834

M65-69

2834

35K→40K

21.8 - 24.9 mi

Top 21%
×2story building
+36ft-53ft

Overall

3397

Males

2415

M65-69

2415

40K→Finish

24.9 - 26.2 mi

Top 21%
×5story building
+80ft-24ft

Overall

3347

Males

2365

M65-69

2365

Passing Analysis

Category:
Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 5K-#9029
5K10K
111264*+1253
#9029 #7776
10K15K
5671*+666
#7776 #7110
15K21K
4623*+619
#7110 #6491
21K25K
2460*+458
#6491 #6033
25K30K
25393*+368
#6033 #5665
30K35K
20477*+457
#5665 #5208
35K40K
36431*+395
#5208 #4813
40KFinish
16125*+109
#4813 #4704
TOTALS
1194444*+4325
#9029 #4704

* 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