Catherine Larson
Chesterfield, MO
Bib: 16006 F

⏱️ 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 | 08:22:31 | 34:06 | 10:59 | 34:06 | 10:59 | - |
10K | 6.21 mi | 08:55:37 | 1:07:12 | 10:49 | 33:06 | 10:39 | -0:20 |
15K | 9.32 mi | 09:32:54 | 1:44:29 | 11:13 | 37:17 | 12:00 | +1:21 |
21K | 13.05 mi | 10:15:01 | 2:26:36 | 11:14 | 42:07 | 11:18 | -0:42 |
25K | 15.53 mi | 10:43:51 | 2:55:26 | 11:18 | 28:50 | 11:36 | +0:18 |
30K | 18.64 mi | 11:21:39 | 3:33:14 | 11:26 | 37:48 | 12:10 | +0:34 |
35K | 21.75 mi | 12:02:12 | 4:13:47 | 11:40 | 40:33 | 13:03 | +0:53 |
40K | 24.85 mi | 12:41:24 | 4:52:59 | 11:47 | 39:12 | 12:37 | -0:26 |
Finish | 26.22 mi | 12:58:35 | 5:10:10 | 11:50 | 17:11 | 12:36 | -0:01 |
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
10:39 /mi
Average Pace
11:50 /mi
Slowest Pace
13:03 /mi
📊Segments
Segment Time Comparison
Time at Faster Pace
2:18:09
45% of race
Time at Steady Pace
1:15:05
24% of race
Time at Slower Pace
1:36:56
31% of race
Average Pace: 11:50 /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 | 08:22:31 | 34:06 | 10:59 | 34:06 | 10:59 | #17948 | |
10K | 6.21 mi | 08:55:37 | 1:07:12 | 10:49 | 33:06 | 10:39 | #18990 | |
15K | 9.32 mi | 09:32:54 | 1:44:29 | 11:13 | 37:17 | 12:00 | #21477 | |
21K | 13.05 mi | 10:15:01 | 2:26:36 | 11:14 | 42:07 | 11:18 | #20683 | |
25K | 15.53 mi | 10:43:51 | 2:55:26 | 11:18 | 28:50 | 11:36 | #20540 | |
30K | 18.64 mi | 11:21:39 | 3:33:14 | 11:26 | 37:48 | 12:10 | #20170 | |
35K | 21.75 mi | 12:02:12 | 4:13:47 | 11:40 | 40:33 | 13:03 | #20215 | |
40K | 24.85 mi | 12:41:24 | 4:52:59 | 11:47 | 39:12 | 12:37 | #19701 | |
Finish | 26.22 mi | 12:58:35 | 5:10:10 | 11:50 | 17:11 | 12:36 | #19549 |
Checkpoint and Segment Rankings
| Checkpoint | Distance | Seg. Dist | Overall | Females | F40-44 | Seg. Overall | Seg. Females | Seg. F40-44 |
|---|---|---|---|---|---|---|---|---|
| 5K | 3.11 mi | 3.11 mi | 17948 | 6046 | 702 | 24947(Top 83%) | 9446(Top 77%) | 1108(Top 73%) |
| 10K | 6.21 mi | 3.10 mi | 18990-1042 | 6533-487 | 757-55 | 20073(Top 67%) | 7026(Top 57%) | 820(Top 54%) |
| 15K | 9.32 mi | 3.11 mi | 21477-2487 | 7706-1173 | 887-130 | 24947(Top 83%) | 9446(Top 77%) | 1108(Top 73%) |
| 21K | 13.05 mi | 3.73 mi | 20683+794 | 7354+352 | 860+27 | 19718(Top 66%) | 6981(Top 57%) | 793(Top 52%) |
| 25K | 15.53 mi | 2.48 mi | 20540+143 | 7367-13 | 855+5 | 20339(Top 68%) | 7526(Top 61%) | 860(Top 57%) |
| 30K | 18.64 mi | 3.11 mi | 20170+370 | 7281+86 | 847+8 | 19085(Top 64%) | 7088(Top 57%) | 805(Top 53%) |
| 35K | 21.75 mi | 3.11 mi | 20215-45 | 7403-122 | 855-8 | 20035(Top 67%) | 7923(Top 64%) | 913(Top 60%) |
| 40K | 24.85 mi | 3.10 mi | 19701+514 | 7291+112 | 841+14 | 17188(Top 57%) | 6827(Top 55%) | 777(Top 51%) |
| Finish | 26.22 mi | 1.37 mi | 19549+152 | 7264+27 | 842-1 | 17851(Top 59%) | 7097(Top 58%) | 806(Top 53%) |
Segment Performance Analysis
10K→15K
0.0 - 3.1 mi
Overall
24947
Females
9446
F40-44
9446
5K→10K
3.1 - 6.2 mi
Overall
20073
Females
7026
F40-44
7026
10K→15K
6.2 - 9.3 mi
Overall
24947
Females
9446
F40-44
9446
15K→21K
9.3 - 13.1 mi
Overall
19718
Females
6981
F40-44
6981
21K→25K
13.1 - 15.5 mi
Overall
20339
Females
7526
F40-44
7526
25K→30K
15.5 - 18.6 mi
Overall
19085
Females
7088
F40-44
7088
30K→35K
18.6 - 21.8 mi
Overall
20035
Females
7923
F40-44
7923
35K→40K
21.8 - 24.9 mi
Overall
17188
Females
6827
F40-44
6827
40K→Finish
24.9 - 26.2 mi
Overall
17851
Females
7097
F40-44
7097
Passing Analysis
| Segment | Athletes Passed | Passed By | Net Change | Start Rank | End Rank |
|---|---|---|---|---|---|
| Start → 5K | - | - | - | - | #17948 |
| 5K → 10K | 144* | 1186 | -1042 | #17948 | #18990 |
| 10K → 15K | 53* | 2540 | -2487 | #18990 | #21477 |
| 15K → 21K | 973* | 179 | +794 | #21477 | #20683 |
| 21K → 25K | 420* | 277 | +143 | #20683 | #20540 |
| 25K → 30K | 575* | 205 | +370 | #20540 | #20170 |
| 30K → 35K | 345* | 390 | -45 | #20170 | #20215 |
| 35K → 40K | 609* | 95 | +514 | #20215 | #19701 |
| 40K → Finish | 205* | 53 | +152 | #19701 | #19549 |
| TOTALS | 3324* | 4925 | -1601 |
* Includes athletes who did not complete a segment (DNF/DNQ).
Passing Visuals
🔄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