Pairwise course analysis
LA 5K Coursevs.Williston Northampton School 5K
Based on runners who competed on both courses during the same season. Positive values mean the second course ran slower; negative values mean it ran faster.
Model verdict
Williston Northampton School 5K runs faster
-0.91%
Roughly 11.0 seconds faster for a 20:00 runner
Paired observations
19
Developing evidence
Median difference
+0.94%
Middle runner-season comparison
Overall estimate
-0.91%
Network-adjusted course estimate
Middle 50% range
+3.06%
Observed variation (IQR)
Direction and magnitude
Relative course speed
Confidence interval
-0.26% to +2.01%
Scale shown
-5% to +5%
Course context
The two courses
Underlying runner comparisons
Same-season evidence
Each row represents one runner-season with valid results on both courses. Median performances reduce the effect of one unusually good or poor race. JV and varsity results are included.
| Runner | Season | LA 5K Course | Williston Northampton School 5K | Difference |
|---|---|---|---|---|
| Henry McLane | 2025 | 17:28.001 race | 16:35.001 race | -5.06% |
| Alex Cheng | 2025 | 17:05.001 race | 16:27.001 race | -3.71% |
| Will Grace | 2025 | 17:42.001 race | 17:30.001 race | -1.13% |
| William Johnson | 2025 | 19:40.001 race | 19:32.001 race | -0.68% |
| Devin Reid | 2025 | 17:45.001 race | 17:41.001 race | -0.38% |
| Anders Ulrich | 2025 | 19:01.001 race | 19:02.001 race | +0.09% |
| Tomas Hernandez | 2025 | 18:30.001 race | 18:33.001 race | +0.27% |
| Justin Lee | 2025 | 19:10.001 race | 19:17.001 race | +0.61% |
| Jayden Leung | 2025 | 18:54.001 race | 19:04.001 race | +0.88% |
| Jaden Huang | 2025 | 17:49.001 race | 17:59.001 race | +0.94% |
| Emery Nordahl | 2025 | 19:24.001 race | 19:35.001 race | +0.95% |
| Jonas Wilderman | 2025 | 18:46.001 race | 18:59.001 race | +1.15% |
| Ollie Smith | 2025 | 19:37.001 race | 19:55.001 race | +1.53% |
| Tate Corcoran | 2025 | 19:00.001 race | 19:30.001 race | +2.63% |
| Warren Turner | 2025 | 20:20.001 race | 20:59.001 race | +3.20% |
| Alex Cai | 2025 | 20:19.001 race | 21:00.001 race | +3.36% |
| Nahman Mack | 2025 | 18:06.001 race | 18:48.001 race | +3.87% |
| Raphael Klauber | 2025 | 18:07.001 race | 18:53.001 race | +4.23% |
| James Fair | 2025 | 18:14.001 race | 19:01.001 race | +4.30% |