John McCoubrie
Leesburg, VA
Bib: 8836 M

⏱️ Race Timeline
The Course
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A one-of-a-kind AI Race Performance Report that reads your race like a coach. A plain-English story of how you raced, where you surged and faded, and what it all means. Emailed to you, free.
Half Splits
Checkpoint Splits
| Checkpoint | Distance | Time of Day | Time | Avg Pace | Segment Time | Segment Pace | Diff |
|---|---|---|---|---|---|---|---|
5K | 3.11 mi | 07:47:20 | 26:12 | 8:26 | 26:12 | 8:26 | - |
10K | 6.21 mi | 08:11:06 | 49:58 | 8:02 | 23:46 | 7:39 | -0:47 |
15K | 9.32 mi | 08:34:49 | 1:13:41 | 7:54 | 23:43 | 7:38 | -0:01 |
21K | 13.05 mi | 09:04:14 | 1:43:06 | 7:54 | 29:25 | 7:53 | +0:15 |
25K | 15.53 mi | 09:23:26 | 2:02:18 | 7:52 | 19:12 | 7:43 | -0:10 |
30K | 18.64 mi | 09:50:07 | 2:28:59 | 8:00 | 26:41 | 8:35 | +0:52 |
35K | 21.75 mi | 10:18:04 | 2:56:56 | 8:08 | 27:57 | 9:00 | +0:25 |
40K | 24.85 mi | 10:47:57 | 3:26:49 | 8:19 | 29:53 | 9:37 | +0:37 |
Finish | 26.22 mi | 11:01:09 | 3:40:01 | 8:24 | 13:12 | 9:41 | +0:04 |
Checkpoints & Pacing
📈Pace Line
Pace Progression
Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.
Fastest Pace
7:38 /mi
Average Pace
8:24 /mi
Slowest Pace
9:41 /mi
📊Segments
Segment Time Comparison
Time at Faster Pace
1:36:06
44% of race
Time at Steady Pace
52:53
24% of race
Time at Slower Pace
1:11:02
32% of race
Average Pace: 8:23 /mi
🎨Heatmap
Pace Heatmap
Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.
Click or hover over segments to see details
✨Sparklines
Checkpoint Splits with Pace Trends
Overall Pace Trend
| Checkpoint | Distance | Time of Day | Time | Avg Pace | Segment | Pace | Trend | Rank |
|---|---|---|---|---|---|---|---|---|
5K | 3.11 mi | 07:47:20 | 26:12 | 8:26 | 26:12 | 8:26 | #2914 | |
10K | 6.21 mi | 08:11:06 | 49:58 | 8:02 | 23:46 | 7:39 | #2660 | |
15K | 9.32 mi | 08:34:49 | 1:13:41 | 7:54 | 23:43 | 7:38 | #2501 | |
21K | 13.05 mi | 09:04:14 | 1:43:06 | 7:54 | 29:25 | 7:53 | #2476 | |
25K | 15.53 mi | 09:23:26 | 2:02:18 | 7:52 | 19:12 | 7:43 | #2464 | |
30K | 18.64 mi | 09:50:07 | 2:28:59 | 8:00 | 26:41 | 8:35 | #2777 | |
35K | 21.75 mi | 10:18:04 | 2:56:56 | 8:08 | 27:57 | 9:00 | #2968 | |
40K | 24.85 mi | 10:47:57 | 3:26:49 | 8:19 | 29:53 | 9:37 | #3198 | |
Finish | 26.22 mi | 11:01:09 | 3:40:01 | 8:24 | 13:12 | 9:41 | #3316 |
Checkpoint and Segment Rankings
| Checkpoint | Distance | Seg. Dist | Overall | Males | M30-34 | Seg. Overall | Seg. Males | Seg. M30-34 |
|---|---|---|---|---|---|---|---|---|
| 5K | 3.11 mi | 3.11 mi | 2914 | 2377 | 459 | 2279(Top 8%) | 1876(Top 11%) | 373(Top 14%) |
| 10K | 6.21 mi | 3.10 mi | 2660+254 | 2184+193 | 422+37 | 2447(Top 8%) | 2015(Top 11%) | 398(Top 15%) |
| 15K | 9.32 mi | 3.11 mi | 2501+159 | 2051+133 | 401+21 | 2279(Top 8%) | 1876(Top 11%) | 373(Top 14%) |
| 21K | 13.05 mi | 3.73 mi | 2476+25 | 2026+25 | 396+5 | 2484(Top 8%) | 2053(Top 12%) | 396(Top 15%) |
| 25K | 15.53 mi | 2.48 mi | 2464+12 | 2019+7 | 401-5 | 2660(Top 9%) | 2175(Top 12%) | 422(Top 16%) |
| 30K | 18.64 mi | 3.11 mi | 2777-313 | 2262-243 | 438-37 | 4218(Top 14%) | 3267(Top 18%) | 597(Top 23%) |
| 35K | 21.75 mi | 3.11 mi | 2968-191 | 2390-128 | 464-26 | 5026(Top 17%) | 3705(Top 21%) | 665(Top 26%) |
| 40K | 24.85 mi | 3.10 mi | 3198-230 | 2519-129 | 475-11 | 6383(Top 21%) | 4374(Top 25%) | 757(Top 29%) |
| Finish | 26.22 mi | 1.37 mi | 3316-118 | 2593-74 | 487-12 | 6670(Top 22%) | 4438(Top 25%) | 765(Top 29%) |
Segment Performance Analysis
10K→15K
0.0 - 3.1 mi
Overall
2279
Males
1876
M30-34
1876
5K→10K
3.1 - 6.2 mi
Overall
2447
Males
2015
M30-34
2015
10K→15K
6.2 - 9.3 mi
Overall
2279
Males
1876
M30-34
1876
15K→21K
9.3 - 13.1 mi
Overall
2484
Males
2053
M30-34
2053
21K→25K
13.1 - 15.5 mi
Overall
2660
Males
2175
M30-34
2175
25K→30K
15.5 - 18.6 mi
Overall
4218
Males
3267
M30-34
3267
30K→35K
18.6 - 21.8 mi
Overall
5026
Males
3705
M30-34
3705
35K→40K
21.8 - 24.9 mi
Overall
6383
Males
4374
M30-34
4374
40K→Finish
24.9 - 26.2 mi
Overall
6670
Males
4438
M30-34
4438
Passing Analysis
| Segment | Athletes Passed | Passed By | Net Change | Start Rank | End Rank |
|---|---|---|---|---|---|
| Start → 5K | - | - | - | - | #2914 |
| 5K → 10K | 303* | 49 | +254 | #2914 | #2660 |
| 10K → 15K | 183* | 24 | +159 | #2660 | #2501 |
| 15K → 21K | 84* | 59 | +25 | #2501 | #2476 |
| 21K → 25K | 68 | 56 | +12 | #2476 | #2464 |
| 25K → 30K | 47* | 360 | -313 | #2464 | #2777 |
| 30K → 35K | 79* | 270 | -191 | #2777 | #2968 |
| 35K → 40K | 73* | 303 | -230 | #2968 | #3198 |
| 40K → Finish | 29* | 147 | -118 | #3198 | #3316 |
| TOTALS | 866* | 1268 | -402 |
* Includes athletes who did not complete a segment (DNF/DNQ).
Passing Visuals
🔄Passing Circle
🌊Position Flow
🏃Race Lanes
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Public Race Data
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Race managed by
U.S. Marine Corps Community Services (MCCS)
Race timed by
Timing Productions