Pairwise course analysis
RL 5K Coursevs.LA 5K Course
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
LA 5K Course runs faster
-1.24%
Roughly 14.9 seconds faster for a 20:00 runner
Paired observations
36
Developing evidence
Median difference
-0.47%
Middle runner-season comparison
Overall estimate
-1.24%
Network-adjusted course estimate
Middle 50% range
+4.37%
Observed variation (IQR)
Direction and magnitude
Relative course speed
Confidence interval
-2.40% to +0.57%
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 | RL 5K Course | LA 5K Course | Difference |
|---|---|---|---|---|
| Gavin Shan | 2019 | 26:11.001 race | 22:00.002 races | -15.98% |
| Ezra Klauber | 2022 | 22:06.004 races | 19:31.001 race | -11.69% |
| Zach Heaton | 2022 | 21:20.003 races | 20:10.001 race | -5.47% |
| Sina Graf | 2019 | 29:51.001 race | 28:32.001 race | -4.41% |
| Chris Davis | 2019 | 19:41.001 race | 18:51.002 races | -4.23% |
| Daichi Seki | 2019 | 21:59.001 race | 21:04.002 races | -4.17% |
| Arjun Girish | 2019 | 21:56.001 race | 21:03.002 races | -4.03% |
| Quinn Thomson | 2022 | 23:40.003 races | 22:59.001 race | -2.89% |
| Joo-Ran Schaerer | 2019 | 30:06.001 race | 29:19.201 race | -2.59% |
| Ethan Paek | 2019 | 19:58.001 race | 19:30.002 races | -2.34% |
| Eric Diop | 2022 | 18:15.002 races | 17:52.001 race | -2.10% |
| Sebastian Sepulveda | 2019 | 22:56.001 race | 22:28.002 races | -2.03% |
| Max Aleksandrovics | 2019 | 26:15.001 race | 25:44.001 race | -1.97% |
| Hannah Gidlewski | 2019 | 27:45.001 race | 27:20.001 race | -1.50% |
| Tiffany Chiang | 2019 | 25:16.001 race | 25:01.001 race | -0.99% |
| Brandon Christ | 2019 | 19:54.001 race | 19:44.002 races | -0.84% |
| Akhilsai Damera | 2022 | 20:30.002 races | 20:22.001 race | -0.65% |
| Jess Fatzinger | 2019 | 28:02.001 race | 27:54.002 races | -0.48% |
| Brendan Reichard | 2022 | 21:57.002 races | 21:51.001 race | -0.46% |
| Sophia Lando | 2019 | 25:41.001 race | 25:34.001 race | -0.45% |
| Arhant Ghanta | 2019 | 24:12.001 race | 24:06.002 races | -0.41% |
| John (Jake) Popeo | 2022 | 19:17.003 races | 19:14.001 race | -0.26% |
| Enock Musyoka | 2019 | 17:08.001 race | 17:08.002 races | 0.00% |
| Thomas Savage | 2022 | 21:40.002 races | 21:45.002 races | +0.38% |
| Liam Walsh | 2022 | 19:33.001 race | 19:45.001 race | +1.02% |
| Mathias Why | 2022 | 20:00.003 races | 20:19.001 race | +1.58% |
| Eric Archerman | 2022 | 19:50.001 race | 20:12.001 race | +1.85% |
| Levi Harrison | 2022 | 18:13.003 races | 18:34.001 race | +1.92% |
| Michael Thomas | 2022 | 18:41.002 races | 19:03.001 race | +1.96% |
| John (Jack) Tompros | 2022 | 21:18.003 races | 21:44.001 race | +2.03% |
| Akshay Kumar | 2022 | 19:51.003 races | 20:25.001 race | +2.85% |
| Kiet Nguyen | 2019 | 24:04.001 race | 24:48.002 races | +3.05% |
| Sophia Ronchetti | 2019 | 31:07.001 race | 32:34.001 race | +4.66% |
| Darian Estrada | 2022 | 27:02.002 races | 28:30.001 race | +5.43% |
| Calvin Reid | 2022 | 21:28.003 races | 22:53.001 race | +6.60% |
| Forrest Feist | 2019 | 29:36.001 race | 31:37.002 races | +6.81% |