Pairwise course analysis
Washington Park 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 slower
+4.41%
Roughly 52.9 seconds slower for a 20:00 runner
Paired observations
72
Strong evidence
Median difference
+8.19%
Middle runner-season comparison
Overall estimate
+4.41%
Network-adjusted course estimate
Middle 50% range
+4.60%
Observed variation (IQR)
Direction and magnitude
Relative course speed
LA 5K Course fasterEvenLA 5K Course slower
Confidence interval
+7.66% to +10.84%
Scale shown
-12% to +12%
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 | Washington Park 5K Course | LA 5K Course | Difference |
|---|---|---|---|---|
| Kinh Kieu | 2022 | 31:26.201 race | 30:59.002 races | -1.44% |
| Alexander Kirby | 2022 | 21:31.201 race | 21:29.002 races | -0.17% |
| Matthew Smith | 2022 | 22:01.001 race | 21:59.002 races | -0.15% |
| Charles Zhang | 2022 | 25:52.601 race | 26:14.002 races | +1.38% |
| Isabella Murray | 2019 | 30:41.001 race | 31:13.001 race | +1.74% |
| Alexander Colangelo | 2022 | 19:01.701 race | 19:25.001 race | +2.04% |
| Jiayi Yu | 2019 | 28:31.001 race | 29:32.001 race | +3.57% |
| Nashua Poreda | 2019 | 21:34.001 race | 22:21.001 race | +3.63% |
| Coco Chen | 2021 | 29:31.001 race | 30:38.001 race | +3.78% |
| Sebastian Rome | 2019 | 23:25.001 race | 24:19.001 race | +3.84% |
| Charlie Poulin | 2019 | 26:58.001 race | 28:01.001 race | +3.89% |
| Will Ryckman | 2019 | 21:07.001 race | 21:59.001 race | +4.10% |
| Emily Taylor | 2019 | 23:55.001 race | 24:55.001 race | +4.18% |
| Ben Bundy | 2019 | 19:54.001 race | 20:49.001 race | +4.61% |
| Nick Haugen | 2019 | 17:33.001 race | 18:22.001 race | +4.65% |
| J. Wei | 2019 | 26:30.001 race | 27:46.001 race | +4.78% |
| Eve Elkins | 2019 | 23:42.001 race | 24:55.001 race | +5.13% |
| Blake Gattuso | 2019 | 17:38.001 race | 18:33.001 race | +5.20% |
| Lily Walsh | 2019 | 23:59.001 race | 25:14.001 race | +5.21% |
| Amber Banks | 2022 | 22:41.301 race | 23:55.002 races | +5.41% |
| Bennett Jones | 2019 | 19:32.001 race | 20:36.001 race | +5.46% |
| Quentin DeFreitas | 2022 | 23:17.501 race | 24:34.002 races | +5.47% |
| Ingrid Yeung | 2019 | 24:08.001 race | 25:33.001 race | +5.87% |
| Andrew Zhou | 2019 | 19:22.001 race | 20:32.001 race | +6.02% |
| Jack Griffin | 2019 | 18:21.001 race | 19:29.001 race | +6.18% |
| Naila Strong | 2019 | 24:32.001 race | 26:05.001 race | +6.32% |
| James Lammert | 2019 | 17:35.001 race | 18:45.001 race | +6.64% |
| Ashley Battiata | 2019 | 25:33.001 race | 27:15.001 race | +6.65% |
| Lucas Miller | 2022 | 19:42.401 race | 21:04.002 races | +6.90% |
| Anthony Coston | 2022 | 21:57.901 race | 23:31.001 race | +7.06% |
| Will Osborne | 2019 | 19:15.001 race | 20:38.001 race | +7.19% |
| Judy Xie | 2019 | 21:41.001 race | 23:17.001 race | +7.38% |
| Sunny Li | 2019 | 28:06.001 race | 30:13.001 race | +7.53% |
| Ben Pestana | 2019 | 20:29.001 race | 22:02.001 race | +7.57% |
| Fiona Tran | 2019 | 34:16.001 race | 36:59.001 race | +7.93% |
| Ben Croft | 2019 | 18:22.001 race | 19:52.001 race | +8.17% |
| Princess Alexander | 2019 | 24:45.001 race | 26:47.001 race | +8.22% |
| Paula Hornbostel | 2019 | 26:35.001 race | 28:50.001 race | +8.46% |
| Elisabeth Marota | 2019 | 28:38.001 race | 31:04.001 race | +8.50% |
| Tony Wei | 2019 | 21:12.001 race | 23:02.001 race | +8.65% |
| Natalie Zaterka | 2019 | 22:18.001 race | 24:14.001 race | +8.67% |
| Martin Ma | 2019 | 21:18.001 race | 23:12.001 race | +8.92% |
| Kevin Takayama | 2019 | 28:31.001 race | 31:04.001 race | +8.94% |
| Kartik Donepudi | 2019 | 20:13.001 race | 22:02.001 race | +8.99% |
| Kendall Sommers | 2019 | 22:20.001 race | 24:21.001 race | +9.03% |
| David Ma | 2019 | 23:47.001 race | 25:56.001 race | +9.04% |
| Lindsay Davis | 2019 | 22:39.001 race | 24:42.001 race | +9.05% |
| Andria Bao | 2019 | 24:52.001 race | 27:10.001 race | +9.25% |
| Nick Sparrow | 2019 | 17:34.001 race | 19:12.001 race | +9.30% |
| Weixin (Wendy) Wu | 2021 | 27:24.001 race | 29:57.001 race | +9.31% |
| Charlotte Lokere | 2022 | 24:56.301 race | 27:16.003 races | +9.34% |
| Joshua Bergers | 2019 | 16:19.001 race | 17:53.001 race | +9.60% |
| Natalie Zaterka | 2021 | 21:03.001 race | 23:05.001 race | +9.66% |
| Aitong (Ivy) Li | 2019 | 24:08.001 race | 26:31.001 race | +9.88% |
| Veronika Kitsul | 2021 | 25:22.001 race | 28:03.001 race | +10.58% |
| Martin Li | 2019 | 24:03.001 race | 26:37.001 race | +10.67% |
| Eric Zhang | 2021 | 22:55.001 race | 25:22.001 race | +10.69% |
| Mateo MacRi | 2019 | 18:18.001 race | 20:19.001 race | +11.02% |
| Daniela Ortiz | 2019 | 23:08.001 race | 25:57.001 race | +12.18% |
| Dylan Zaterka | 2021 | 19:44.001 race | 22:25.001 race | +13.60% |
| Hayden Gobron | 2021 | 18:56.001 race | 21:32.001 race | +13.73% |
| James Nichols-Worley | 2021 | 19:03.001 race | 21:44.001 race | +14.09% |
| Jaclyn Zatsiorsky | 2021 | 26:54.001 race | 31:07.001 race | +15.68% |
| Helena Xie | 2021 | 22:19.001 race | 26:18.001 race | +17.85% |
| Martin Li | 2021 | 22:57.001 race | 27:41.001 race | +20.62% |
| Aitong (Ivy) Li | 2021 | 24:07.001 race | 29:25.001 race | +21.98% |
| Maddie Bazinet | 2021 | 29:30.001 race | 35:59.001 race | +21.98% |
| Sooah (Sua) Yoo | 2021 | 26:28.001 race | 33:26.001 race | +26.32% |
| Diana Oh | 2021 | 28:00.001 race | 35:59.001 race | +28.51% |
| Andrew Hung | 2021 | 23:45.001 race | 30:50.001 race | +29.82% |
| Condy Bao | 2021 | 20:48.001 race | 27:06.001 race | +30.29% |
| Jackie Huang | 2021 | 26:55.001 race | 36:21.001 race | +35.05% |