Cathy Lao-Nguyen

Ashburn, VA

Bib: 17176 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 30047
Top 45%
Gender (Female)
#0 / 12338
Top 37%
Masters (Masters Women)
#0 / 5451
Top 26%
Division (F50-54)
#0 / 1155
Top 23%
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
9:29/mi
29:28
279164
10K· 6.21 mi
8:53/mi
57:05
103217
15K· 9.32 mi
9:10/mi
1:25:33
5155
21K· 13.05 mi
9:49/mi
2:02:09
2037
25K· 15.53 mi
9:16/mi
2:25:12
35
30K· 18.64 mi
11:30/mi
3:00:57
5857
35K· 21.75 mi
11:51/mi
3:37:46
9892
40K· 24.85 mi
12:16/mi
4:15:53
3653
Finish· 26.22 mi
15:14/mi
4:36:40
8024
Course Elevation
3237 ft
×20story building
764 ft climb · 717 ft descent

The Course

Half Splits

1st Half· via 21K
2:02:099:22 /mi⚡ faster
2nd Half
2:34:3111:44 /mi+26.5%
Positive split — 26.5% 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
29:289:293.11 mi29:28
9:29
-
10K
57:059:113.10 mi27:37
8:53
-0:36
15K
1:25:339:113.11 mi28:28
9:10
+0:17
21K
2:02:099:223.73 mi36:36
9:49
+0:39
25K
2:25:129:212.48 mi23:03
9:16
-0:33
30K
3:00:579:423.11 mi35:45
11:30
+2:14
35K
3:37:4610:013.11 mi36:49
11:51
+0:21
40K
4:15:5310:183.10 mi38:07
12:16
+0:25
Finish(26.22 mi)
4:36:4010:341.37 mi20:47
15:14
+2:58
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:53 /mi

Average Pace

10:34 /mi

Slowest Pace

15:14 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:25:12

52% of race

Time at Slower Pace

2:11:28

48% of race

Average Pace: 10:33 /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. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi85282204105101102731138
10K3.10 mi8560-322201+3107-287072231120
15K3.11 mi9084-5242375-174119-12101102731138
21K3.73 mi10057-9732732-357140-21122973660204
25K2.48 mi9982+752726+6138+2100882865137
30K3.11 mi11227-12453275-549176-38167716037400
35K3.11 mi11997-7703726-451214-38162126155422
40K3.10 mi12577-5804107-381239-25160166301444
Finish(26.22 mi)1.37 mi13567-9904561-454269-302495710181834

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×18story building
+279ft-164ft

Overall

10110

Females

2731

F50-54

2731

5K→10K

3.1 - 6.2 mi

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

Overall

8707

Females

2231

F50-54

2231

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+51ft-55ft

Overall

10110

Females

2731

F50-54

2731

15K→21K

9.3 - 13.1 mi

Top 41%
×1story
+20ft-37ft

Overall

12297

Females

3660

F50-54

3660

21K→25K

13.1 - 15.5 mi

Top 34%
×2story building
+35ft-8ft

Overall

10088

Females

2865

F50-54

2865

25K→30K

15.5 - 18.6 mi

Top 56%
×2story building
+58ft-57ft

Overall

16771

Females

6037

F50-54

6037

30K→35K

18.6 - 21.8 mi

Top 54%
×2story building
+98ft-92ft

Overall

16212

Females

6155

F50-54

6155

35K→40K

21.8 - 24.9 mi

Top 53%
×2story building
+36ft-53ft

Overall

16016

Females

6301

F50-54

6301

40K→Finish

24.9 - 26.2 mi

Top 83%
×5story building
+80ft-24ft

Overall

24957

Females

10181

F50-54

10181

Passing Analysis

Category:
Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 5K-#8528
5K10K
292260*-32
#8528 #8560
10K15K
61490*-524
#8560 #9084
15K21K
106491*-973
#9084 #10057
21K25K
182257*+75
#10057 #9982
25K30K
130257*-1245
#9982 #11227
30K35K
927157*-770
#11227 #11997
35K40K
754174*-580
#11997 #12577
40KFinish
100414*-990
#12577 #13567
TOTALS
61391100*-5039
#8528 #13567

* 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