Pui San Cheung
Fairfax, VA
Bib: 37866 F
Race Timeline
The Course
Half Splits
Your race, unpacked
See your splits, ranks & AI insights.
Checkpoint Splits
| Checkpoint | Time | Avg Pace | Segment Length | Segment Time | Segment Pace | Trend | Diff |
|---|---|---|---|---|---|---|---|
5K | 35:50 | 11:32 | 3.11 mi | 35:50 | 11:32 | - | |
10K | 1:09:10 | 11:08 | 3.10 mi | 33:20 | 10:44 | -0:48 | |
15K | 1:43:31 | 11:06 | 3.11 mi | 34:21 | 11:03 | +0:19 | |
21K | 2:29:39 | 11:28 | 3.73 mi | 46:08 | 12:22 | +1:19 | |
25K | 3:01:54 | 11:43 | 2.48 mi | 32:15 | 12:59 | +0:37 | |
30K | 3:43:09 | 11:58 | 3.11 mi | 41:15 | 13:17 | +0:18 | |
35K | 4:27:31 | 12:18 | 3.11 mi | 44:22 | 14:17 | +1:00 | |
40K | 5:12:53 | 12:35 | 3.10 mi | 45:22 | 14:36 | +0:19 | |
Finish(26.22 mi) | 5:33:09 | 12:43 | 1.37 mi | 20:16 | 14:52 | +0:16 |
Checkpoints & Pacing
Pace Line
Fastest Pace
10:44 /mi
Average Pace
12:43 /mi
Slowest Pace
14:52 /mi
Segments
Time at Faster Pace
1:43:31
31% of race
Time at Steady Pace
1:59:38
36% of race
Time at Slower Pace
1:50:00
33% of race
Average Pace: 12:42 /mi
Heatmap
Checkpoint and Segment Rankings
| Checkpoint | Seg. Dist | Overall | Females | F45-49 | Seg. Overall | Seg. Females | Seg. F45-49 |
|---|---|---|---|---|---|---|---|
| 5K | 3.11 mi | 21443 | 7729 | 694 | 21035 | 7495 | 656 |
| 10K | 3.10 mi | 20989+454 | 7485+244 | 676+18 | 20596 | 7296 | 649 |
| 15K | 3.11 mi | 20889+100 | 7426+59 | 666+10 | 21035 | 7495 | 656 |
| 21K | 3.73 mi | 21961-1072 | 7967-541 | 712-46 | 23571 | 8865 | 820 |
| 25K | 2.48 mi | 22491-530 | 8286-319 | 743-31 | 24570 | 9625 | 900 |
| 30K | 3.11 mi | 22373+118 | 8328-42 | 747-4 | 22470 | 8749 | 811 |
| 35K | 3.11 mi | 22656-283 | 8575-247 | 776-29 | 23799 | 9694 | 938 |
| 40K | 3.10 mi | 22750-94 | 8709-134 | 804-28 | 23109 | 9423 | 884 |
| Finish(26.22 mi) | 1.37 mi | 22877-127 | 8792-83 | 811-7 | 24173 | 9844 | 949 |
Segment Performance Analysis
10K→15K
0.0 - 3.1 mi
Overall
21035
Females
7495
F45-49
7495
5K→10K
3.1 - 6.2 mi
Overall
20596
Females
7296
F45-49
7296
10K→15K
6.2 - 9.3 mi
Overall
21035
Females
7495
F45-49
7495
15K→21K
9.3 - 13.1 mi
Overall
23571
Females
8865
F45-49
8865
21K→25K
13.1 - 15.5 mi
Overall
24570
Females
9625
F45-49
9625
25K→30K
15.5 - 18.6 mi
Overall
22470
Females
8749
F45-49
8749
30K→35K
18.6 - 21.8 mi
Overall
23799
Females
9694
F45-49
9694
35K→40K
21.8 - 24.9 mi
Overall
23109
Females
9423
F45-49
9423
40K→Finish
24.9 - 26.2 mi
Overall
24173
Females
9844
F45-49
9844
Passing Analysis
| Segment | Movement | Rank |
|---|---|---|
| Start → 5K | - | #21443 |
| 5K → 10K | 280734*+454 | #21443 → #20989 |
| 10K → 15K | 342442*+100 | #20989 → #20889 |
| 15K → 21K | 1343271*-1072 | #20889 → #21961 |
| 21K → 25K | 743213*-530 | #21961 → #22491 |
| 25K → 30K | 281399*+118 | #22491 → #22373 |
| 30K → 35K | 488205*-283 | #22373 → #22656 |
| 35K → 40K | 319225*-94 | #22656 → #22750 |
| 40K → Finish | 20679*-127 | #22750 → #22877 |
| TOTALS | 40022568*-1434 | #21443 → #22877 |
* Includes athletes who did not complete a segment (DNF/DNQ).
Passing Visualized
Passing Circle
Position Flow
Race Lanes
Upload your GPX file
Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps
.gpx files up to 10MB
Export Track Data
Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.
Questions or issues regarding timing data?
If you notice any discrepancies in your timing data or have questions about your results, our support team can help.
Contact Race SupportQuick Links
Find another athlete or browse the full results
Public Race Data
Enhanced athlete results built from publicly available data.
Race managed by
U.S. Marine Corps Community Services (MCCS)
Race timed by
Timing Productions