Matthew Grinnell
Ashburn, VA
Bib: 17935 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 | 33:35 | 10:49 | 3.11 mi | 33:35 | 10:49 | - | |
10K | 1:04:25 | 10:22 | 3.10 mi | 30:50 | 9:55 | -0:54 | |
15K | 1:36:28 | 10:21 | 3.11 mi | 32:03 | 10:19 | +0:24 | |
21K | 2:18:05 | 10:35 | 3.73 mi | 41:37 | 11:10 | +0:51 | |
25K | 2:46:06 | 10:42 | 2.48 mi | 28:01 | 11:16 | +0:06 | |
30K | 3:29:53 | 11:16 | 3.11 mi | 43:47 | 14:06 | +2:50 | |
35K | 4:18:16 | 11:53 | 3.11 mi | 48:23 | 15:34 | +1:28 | |
40K | 5:08:28 | 12:25 | 3.10 mi | 50:12 | 16:09 | +0:35 | |
Finish(26.22 mi) | 5:32:23 | 12:41 | 1.37 mi | 23:55 | 17:32 | +1:23 |
Checkpoints & Pacing
Pace Line
Fastest Pace
9:55 /mi
Average Pace
12:41 /mi
Slowest Pace
17:32 /mi
Segments
Time at Faster Pace
0:00
0% of race
Time at Steady Pace
2:46:06
50% of race
Time at Slower Pace
2:46:17
50% of race
Average Pace: 12:41 /mi
Heatmap
Checkpoint and Segment Rankings
| Checkpoint | Seg. Dist | Overall | Males | M40-44 | Seg. Overall | Seg. Males | Seg. M40-44 |
|---|---|---|---|---|---|---|---|
| 5K | 3.11 mi | 10865 | 7491 | 910 | 9857 | 6909 | 843 |
| 10K | 3.10 mi | 10144+721 | 7094+397 | 865+45 | 9549 | 6762 | 827 |
| 15K | 3.11 mi | 9986+158 | 7018+76 | 861+4 | 9857 | 6909 | 843 |
| 21K | 3.73 mi | 10486-500 | 7266-248 | 889-28 | 11523 | 7810 | 963 |
| 25K | 2.48 mi | 10682-196 | 7327-61 | 897-8 | 11672 | 7720 | 946 |
| 30K | 3.11 mi | 11692-1010 | 7829-502 | 968-71 | 13976 | 8850 | 1103 |
| 35K | 3.11 mi | 12556-864 | 8226-397 | 1033-65 | 14904 | 9294 | 1164 |
| 40K | 3.10 mi | 13127-571 | 8477-251 | 1054-21 | 14744 | 9213 | 1152 |
| Finish(26.22 mi) | 1.37 mi | 13433-306 | 8632-155 | 1071-17 | 15408 | 9616 | 1200 |
Segment Performance Analysis
10K→15K
0.0 - 3.1 mi
Overall
9857
Males
6909
M40-44
6909
5K→10K
3.1 - 6.2 mi
Overall
9549
Males
6762
M40-44
6762
10K→15K
6.2 - 9.3 mi
Overall
9857
Males
6909
M40-44
6909
15K→21K
9.3 - 13.1 mi
Overall
11523
Males
7810
M40-44
7810
21K→25K
13.1 - 15.5 mi
Overall
11672
Males
7720
M40-44
7720
25K→30K
15.5 - 18.6 mi
Overall
13976
Males
8850
M40-44
8850
30K→35K
18.6 - 21.8 mi
Overall
14904
Males
9294
M40-44
9294
35K→40K
21.8 - 24.9 mi
Overall
14744
Males
9213
M40-44
9213
40K→Finish
24.9 - 26.2 mi
Overall
15408
Males
9616
M40-44
9616
Passing Analysis
| Segment | Movement | Rank |
|---|---|---|
| Start → 5K | - | #10865 |
| 5K → 10K | 58779*+721 | #10865 → #10144 |
| 10K → 15K | 135293*+158 | #10144 → #9986 |
| 15K → 21K | 613113*-500 | #9986 → #10486 |
| 21K → 25K | 326130*-196 | #10486 → #10682 |
| 25K → 30K | 106555*-1010 | #10682 → #11692 |
| 30K → 35K | 90642*-864 | #11692 → #12556 |
| 35K → 40K | 59524*-571 | #12556 → #13127 |
| 40K → Finish | 3137*-306 | #13127 → #13433 |
| TOTALS | 40111443*-2568 | #10865 → #13433 |
* 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