Alexandra Columbus
Needham, MA
Bib: 20687 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 | 33:56 | 10:55 | 3.11 mi | 33:56 | 10:55 | - | |
10K | 1:06:33 | 10:43 | 3.10 mi | 32:37 | 10:30 | -0:25 | |
15K | 1:39:44 | 10:42 | 3.11 mi | 33:11 | 10:41 | +0:11 | |
21K | 2:22:22 | 10:55 | 3.73 mi | 42:38 | 11:26 | +0:45 | |
25K | 2:51:32 | 11:03 | 2.48 mi | 29:10 | 11:44 | +0:18 | |
30K | 3:26:33 | 11:05 | 3.11 mi | 35:01 | 11:16 | -0:28 | |
35K | 4:01:34 | 11:06 | 3.11 mi | 35:01 | 11:16 | 0:00 | |
40K | 4:35:59 | 11:06 | 3.10 mi | 34:25 | 11:05 | -0:11 | |
Finish(26.22 mi) | 4:50:51 | 11:06 | 1.37 mi | 14:52 | 10:54 | -0:11 |
Checkpoints & Pacing
Pace Line
Fastest Pace
10:30 /mi
Average Pace
11:06 /mi
Slowest Pace
11:44 /mi
Segments
Time at Faster Pace
4:21:41
90% of race
Time at Steady Pace
29:10
10% of race
Time at Slower Pace
0:00
0% of race
Average Pace: 11:06 /mi
Heatmap
Checkpoint and Segment Rankings
| Checkpoint | Seg. Dist | Overall | Females | F40-44 | Seg. Overall | Seg. Females | Seg. F40-44 |
|---|---|---|---|---|---|---|---|
| 5K | 3.11 mi | 17636 | 5903 | 685 | 18971 | 6517 | 756 |
| 10K | 3.10 mi | 18306-670 | 6203-300 | 717-32 | 19143 | 6607 | 776 |
| 15K | 3.11 mi | 18444-138 | 6253-50 | 721-4 | 18971 | 6517 | 756 |
| 21K | 3.73 mi | 18991-547 | 6556-303 | 759-38 | 20338 | 7268 | 833 |
| 25K | 2.48 mi | 19289-298 | 6746-190 | 784-25 | 20794 | 7742 | 889 |
| 30K | 3.11 mi | 18463+826 | 6449+297 | 747+37 | 15861 | 5637 | 644 |
| 35K | 3.11 mi | 17599+864 | 6200+249 | 717+30 | 14095 | 5184 | 595 |
| 40K | 3.10 mi | 16602+997 | 5870+330 | 676+41 | 11829 | 4449 | 503 |
| Finish(26.22 mi) | 1.37 mi | 16266+336 | 5772+98 | 672+4 | 11516 | 4366 | 484 |
Segment Performance Analysis
10K→15K
0.0 - 3.1 mi
Overall
18971
Females
6517
F40-44
6517
5K→10K
3.1 - 6.2 mi
Overall
19143
Females
6607
F40-44
6607
10K→15K
6.2 - 9.3 mi
Overall
18971
Females
6517
F40-44
6517
15K→21K
9.3 - 13.1 mi
Overall
20338
Females
7268
F40-44
7268
21K→25K
13.1 - 15.5 mi
Overall
20794
Females
7742
F40-44
7742
25K→30K
15.5 - 18.6 mi
Overall
15861
Females
5637
F40-44
5637
30K→35K
18.6 - 21.8 mi
Overall
14095
Females
5184
F40-44
5184
35K→40K
21.8 - 24.9 mi
Overall
11829
Females
4449
F40-44
4449
40K→Finish
24.9 - 26.2 mi
Overall
11516
Females
4366
F40-44
4366
Passing Analysis
| Segment | Movement | Rank |
|---|---|---|
| Start → 5K | - | #17636 |
| 5K → 10K | 879209*-670 | #17636 → #18306 |
| 10K → 15K | 486348*-138 | #18306 → #18444 |
| 15K → 21K | 901354*-547 | #18444 → #18991 |
| 21K → 25K | 558260*-298 | #18991 → #19289 |
| 25K → 30K | 53879*+826 | #19289 → #18463 |
| 30K → 35K | 74938*+864 | #18463 → #17599 |
| 35K → 40K | 321029*+997 | #17599 → #16602 |
| 40K → Finish | 15351*+336 | #16602 → #16266 |
| TOTALS | 29984368*+1370 | #17636 → #16266 |
* 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