Pairwise course analysis
Bouchard Park 5Kvs.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
+5.00%
Roughly 1:00 slower for a 20:00 runner
Paired observations
66
Strong evidence
Median difference
+4.38%
Middle runner-season comparison
Overall estimate
+5.00%
Network-adjusted course estimate
Middle 50% range
+3.86%
Observed variation (IQR)
Direction and magnitude
Relative course speed
LA 5K Course fasterEvenLA 5K Course slower
Confidence interval
+3.44% to +5.87%
Scale shown
-6% to +6%
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 | Bouchard Park 5K | LA 5K Course | Difference |
|---|---|---|---|---|
| Keira Amick | 2025 | 30:31.401 race | 26:02.001 race | -14.71% |
| George Yerid | 2025 | 23:57.901 race | 23:17.001 race | -2.84% |
| Emmett Kellogg | 2025 | 26:35.801 race | 26:03.001 race | -2.06% |
| Anya Shah | 2025 | 26:00.201 race | 25:37.001 race | -1.49% |
| Cameron Regonini | 2025 | 22:05.601 race | 21:52.001 race | -1.03% |
| Samuel Lyons | 2019 | 19:44.101 race | 19:37.001 race | -0.60% |
| Violet Safari | 2025 | 23:48.601 race | 23:56.001 race | +0.52% |
| Alana Brownstein | 2025 | 25:24.201 race | 25:34.001 race | +0.64% |
| Nicole Fallon | 2025 | 22:39.401 race | 22:49.001 race | +0.71% |
| Oliver Carswell | 2019 | 21:25.201 race | 21:39.001 race | +1.07% |
| Cole Zaleski | 2019 | 20:20.101 race | 20:35.001 race | +1.22% |
| Alex Kovtenenko | 2025 | 19:15.401 race | 19:31.001 race | +1.35% |
| Kate Tarr | 2025 | 20:49.901 race | 21:16.001 race | +2.09% |
| Anna Clark | 2025 | 22:55.001 race | 23:24.001 race | +2.11% |
| Eloise Finley | 2025 | 24:21.801 race | 24:53.001 race | +2.13% |
| Dash Claflin | 2025 | 17:45.701 race | 18:11.001 race | +2.37% |
| Rachel Bueker | 2025 | 24:46.101 race | 25:26.001 race | +2.68% |
| Eden Hossaena | 2025 | 37:28.101 race | 38:30.001 race | +2.75% |
| Eli Helzberg | 2019 | 20:54.901 race | 21:30.001 race | +2.80% |
| Andrew Correia | 2019 | 21:06.501 race | 21:42.001 race | +2.80% |
| Colby Crawford | 2025 | 18:50.701 race | 19:23.001 race | +2.86% |
| Rhaya Nestor | 2025 | 24:09.801 race | 24:53.001 race | +2.98% |
| Lucas Miller | 2025 | 18:19.201 race | 18:52.001 race | +2.98% |
| Calvin Smith | 2019 | 18:00.701 race | 18:34.001 race | +3.08% |
| Tyler Cornetta | 2019 | 21:05.501 race | 21:45.001 race | +3.12% |
| Isla Scott | 2025 | 21:59.101 race | 22:43.001 race | +3.33% |
| Grant Reagan-Loomis | 2019 | 20:39.201 race | 21:21.001 race | +3.37% |
| Justin Lin | 2025 | 21:09.701 race | 21:53.001 race | +3.41% |
| Olivia Standish | 2025 | 22:22.701 race | 23:15.001 race | +3.90% |
| Sanjay Ravindran | 2025 | 21:14.701 race | 22:06.001 race | +4.02% |
| Margo Lewis | 2019 | 22:40.401 race | 23:36.001 race | +4.09% |
| George Reinhardt | 2019 | 18:43.001 race | 19:29.001 race | +4.10% |
| Max Meyerhardt | 2019 | 18:45.701 race | 19:34.001 race | +4.29% |
| Myda Gilani | 2025 | 26:30.801 race | 27:42.001 race | +4.48% |
| Sawyer Helzberg | 2019 | 20:44.501 race | 21:41.001 race | +4.54% |
| Andrew Young | 2019 | 24:54.801 race | 26:04.001 race | +4.63% |
| Angelina Ha | 2025 | 21:07.301 race | 22:07.001 race | +4.71% |
| Talia Frieze | 2025 | 26:01.701 race | 27:17.001 race | +4.82% |
| Charles Broderick | 2025 | 20:44.701 race | 21:45.001 race | +4.84% |
| Walt Reagan-Loomis | 2019 | 21:15.801 race | 22:21.001 race | +5.11% |
| Noah Naddaff-Slocum | 2019 | 19:40.601 race | 20:41.001 race | +5.12% |
| Alan Wang | 2025 | 23:42.401 race | 24:57.001 race | +5.24% |
| Richard Federico | 2022 | 17:55.001 race | 18:52.001 race | +5.30% |
| Amanda Gary | 2019 | 23:31.201 race | 24:47.001 race | +5.37% |
| Quincy Treisman | 2025 | 22:48.301 race | 24:02.001 race | +5.39% |
| Luke Walsh | 2022 | 16:46.001 race | 17:44.001 race | +5.77% |
| Caleb Stokes | 2025 | 22:09.201 race | 23:27.001 race | +5.85% |
| Sam Blank | 2025 | 18:00.201 race | 19:08.001 race | +6.28% |
| Maya Kapasi | 2025 | 25:48.901 race | 27:32.001 race | +6.66% |
| George Rand | 2022 | 16:44.001 race | 17:51.001 race | +6.67% |
| Hanna Lapides | 2019 | 24:45.001 race | 26:28.001 race | +6.94% |
| Cam Stathos | 2019 | 17:14.501 race | 18:29.001 race | +7.20% |
| Mark Ryan | 2019 | 17:05.001 race | 18:20.001 race | +7.32% |
| Joshua Rocha | 2019 | 20:09.601 race | 21:40.001 race | +7.47% |
| Isaiah Kiamba | 2022 | 29:04.001 race | 31:21.001 race | +7.86% |
| Nicholas Contos | 2022 | 20:30.001 race | 22:12.001 race | +8.29% |
| Dean Liang | 2022 | 21:50.002 races | 23:44.001 race | +8.70% |
| Quinn McCaffrey | 2025 | 21:25.701 race | 23:19.001 race | +8.81% |
| Lulu Dematteo | 2022 | 23:57.001 race | 26:32.001 race | +10.79% |
| Jason Minicozzi | 2025 | 15:56.601 race | 17:41.001 race | +10.91% |
| Wes Shaller | 2025 | 20:43.701 race | 23:10.001 race | +11.76% |
| Natalie Kloman | 2019 | 29:33.101 race | 33:10.001 race | +12.23% |
| Nathalie Frem | 2022 | 23:24.001 race | 26:32.001 race | +13.39% |
| Anne Moser | 2022 | 21:22.001 race | 24:56.001 race | +16.69% |
| Amelia Sousa | 2022 | 22:44.001 race | 26:32.001 race | +16.72% |
| Charlotte Deveikas | 2022 | 23:58.001 race | 28:55.001 race | +20.65% |