Siwei Luo
Rockville, MD
Bib: 33021 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 | 41:01 | 13:12 | 3.11 mi | 41:01 | 13:12 | - | |
10K | 1:18:41 | 12:40 | 3.10 mi | 37:40 | 12:07 | -1:05 | |
15K | 1:55:30 | 12:24 | 3.11 mi | 36:49 | 11:51 | -0:16 | |
21K | 2:41:12 | 12:21 | 3.73 mi | 45:42 | 12:15 | +0:24 | |
25K | 3:11:26 | 12:19 | 2.48 mi | 30:14 | 12:10 | -0:05 | |
30K | 3:52:41 | 12:29 | 3.11 mi | 41:15 | 13:17 | +1:07 | |
35K | 4:35:06 | 12:39 | 3.11 mi | 42:25 | 13:39 | +0:22 | |
40K | 5:18:50 | 12:50 | 3.10 mi | 43:44 | 14:05 | +0:26 | |
Finish(26.22 mi) | 5:37:01 | 12:52 | 1.37 mi | 18:11 | 13:20 | -0:45 |
Checkpoints & Pacing
Pace Line
Fastest Pace
11:51 /mi
Average Pace
12:52 /mi
Slowest Pace
14:05 /mi
Segments
Time at Faster Pace
2:30:25
45% of race
Time at Steady Pace
2:22:52
42% of race
Time at Slower Pace
43:44
13% of race
Average Pace: 12:51 /mi
Heatmap
Checkpoint and Segment Rankings
| Checkpoint | Seg. Dist | Overall | Females | F45-49 | Seg. Overall | Seg. Females | Seg. F45-49 |
|---|---|---|---|---|---|---|---|
| 5K | 3.11 mi | 28123 | 11129 | 1081 | 24421 | 9157 | 851 |
| 10K | 3.10 mi | 27500+623 | 10787+342 | 1038+43 | 26793 | 10434 | 1001 |
| 15K | 3.11 mi | 26477+1023 | 10223+564 | 966+72 | 24421 | 9157 | 851 |
| 21K | 3.73 mi | 25489+988 | 9732+491 | 914+52 | 23198 | 8673 | 793 |
| 25K | 2.48 mi | 24860+629 | 9466+266 | 882+32 | 22197 | 8425 | 760 |
| 30K | 3.11 mi | 24280+580 | 9274+192 | 864+18 | 22457 | 8742 | 810 |
| 35K | 3.11 mi | 23933+347 | 9191+83 | 853+11 | 21983 | 8823 | 817 |
| 40K | 3.10 mi | 23557+376 | 9104+87 | 850+3 | 21656 | 8774 | 803 |
| Finish(26.22 mi) | 1.37 mi | 23359+198 | 9046+58 | 841+9 | 20156 | 8037 | 720 |
Segment Performance Analysis
10K→15K
0.0 - 3.1 mi
Overall
24421
Females
9157
F45-49
9157
5K→10K
3.1 - 6.2 mi
Overall
26793
Females
10434
F45-49
10434
10K→15K
6.2 - 9.3 mi
Overall
24421
Females
9157
F45-49
9157
15K→21K
9.3 - 13.1 mi
Overall
23198
Females
8673
F45-49
8673
21K→25K
13.1 - 15.5 mi
Overall
22197
Females
8425
F45-49
8425
25K→30K
15.5 - 18.6 mi
Overall
22457
Females
8742
F45-49
8742
30K→35K
18.6 - 21.8 mi
Overall
21983
Females
8823
F45-49
8823
35K→40K
21.8 - 24.9 mi
Overall
21656
Females
8774
F45-49
8774
40K→Finish
24.9 - 26.2 mi
Overall
20156
Females
8037
F45-49
8037
Passing Analysis
| Segment | Movement | Rank |
|---|---|---|
| Start → 5K | - | #28123 |
| 5K → 10K | 92715*+623 | #28123 → #27500 |
| 10K → 15K | 241047*+1023 | #27500 → #26477 |
| 15K → 21K | 461034*+988 | #26477 → #25489 |
| 21K → 25K | 57686*+629 | #25489 → #24860 |
| 25K → 30K | 90670*+580 | #24860 → #24280 |
| 30K → 35K | 130477*+347 | #24280 → #23933 |
| 35K → 40K | 112488*+376 | #23933 → #23557 |
| 40K → Finish | 23221*+198 | #23557 → #23359 |
| TOTALS | 5745338*+4764 | #28123 → #23359 |
* Includes athletes who did not complete a segment (DNF/DNQ).
Passing Visualized
Passing Circle
Position Flow
Race Lanes
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Race managed by
U.S. Marine Corps Community Services (MCCS)
Race timed by
Timing Productions