Brent Grocholski
Bethesda, MD
Bib: 4107 M
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 | 24:45 | 7:58 | 3.11 mi | 24:45 | 7:58 | - | |
10K | 48:24 | 7:47 | 3.10 mi | 23:39 | 7:37 | -0:21 | |
15K | 1:11:59 | 7:43 | 3.11 mi | 23:35 | 7:35 | -0:02 | |
21K | 1:41:16 | 7:46 | 3.73 mi | 29:17 | 7:51 | +0:16 | |
25K | 2:00:21 | 7:45 | 2.48 mi | 19:05 | 7:41 | -0:10 | |
30K | 2:25:08 | 7:47 | 3.11 mi | 24:47 | 7:59 | +0:18 | |
35K | 2:50:15 | 7:50 | 3.11 mi | 25:07 | 8:05 | +0:06 | |
40K | 3:15:35 | 7:52 | 3.10 mi | 25:20 | 8:09 | +0:04 | |
Finish(26.22 mi) | 3:26:24 | 7:53 | 1.37 mi | 10:49 | 7:56 | -0:13 |
Checkpoints & Pacing
Pace Line
Fastest Pace
7:35 /mi
Average Pace
7:53 /mi
Slowest Pace
8:09 /mi
Segments
Time at Faster Pace
1:46:25
52% of race
Time at Steady Pace
1:39:59
48% of race
Time at Slower Pace
0:00
0% of race
Average Pace: 7:52 /mi
Heatmap
Checkpoint and Segment Rankings
| Checkpoint | Seg. Dist | Overall | Males | M45-49 | Seg. Overall | Seg. Males | Seg. M45-49 |
|---|---|---|---|---|---|---|---|
| 5K | 3.11 mi | 1733 | 1446 | 103 | 2144 | 1775 | 139 |
| 10K | 3.10 mi | 1963-230 | 1630-184 | 124-21 | 2324 | 1914 | 147 |
| 15K | 3.11 mi | 2008-45 | 1661-31 | 128-4 | 2144 | 1775 | 139 |
| 21K | 3.73 mi | 2054-46 | 1704-43 | 131-3 | 2354 | 1951 | 147 |
| 25K | 2.48 mi | 2096-42 | 1733-29 | 132-1 | 2443 | 1993 | 153 |
| 30K | 3.11 mi | 2081+15 | 1716+17 | 130+2 | 2289 | 1847 | 147 |
| 35K | 3.11 mi | 2004+77 | 1643+73 | 129+1 | 2084 | 1664 | 133 |
| 40K | 3.10 mi | 1910+94 | 1552+91 | 121+8 | 1860 | 1465 | 118 |
| Finish(26.22 mi) | 1.37 mi | 1852+58 | 1506+46 | 119+2 | 1393 | 1095 | 69 |
Segment Performance Analysis
10K→15K
0.0 - 3.1 mi
Overall
2144
Males
1775
M45-49
1775
5K→10K
3.1 - 6.2 mi
Overall
2324
Males
1914
M45-49
1914
10K→15K
6.2 - 9.3 mi
Overall
2144
Males
1775
M45-49
1775
15K→21K
9.3 - 13.1 mi
Overall
2354
Males
1951
M45-49
1951
21K→25K
13.1 - 15.5 mi
Overall
2443
Males
1993
M45-49
1993
25K→30K
15.5 - 18.6 mi
Overall
2289
Males
1847
M45-49
1847
30K→35K
18.6 - 21.8 mi
Overall
2084
Males
1664
M45-49
1664
35K→40K
21.8 - 24.9 mi
Overall
1860
Males
1465
M45-49
1465
40K→Finish
24.9 - 26.2 mi
Overall
1393
Males
1095
M45-49
1095
Passing Analysis
| Segment | Movement | Rank |
|---|---|---|
| Start → 5K | - | #1733 |
| 5K → 10K | 24919*-230 | #1733 → #1963 |
| 10K → 15K | 9449-45 | #1963 → #2008 |
| 15K → 21K | 9751*-46 | #2008 → #2054 |
| 21K → 25K | 7634-42 | #2054 → #2096 |
| 25K → 30K | 6075*+15 | #2096 → #2081 |
| 30K → 35K | 46123+77 | #2081 → #2004 |
| 35K → 40K | 43137*+94 | #2004 → #1910 |
| 40K → Finish | 1169*+58 | #1910 → #1852 |
| TOTALS | 676557*-119 | #1733 → #1852 |
* 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