Pairwise course analysis
Brooks School 5Kvs.Great Brook Farm 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
Great Brook Farm 5K runs faster
-2.43%
Roughly 29.1 seconds faster for a 20:00 runner
Paired observations
34
Developing evidence
Median difference
-0.90%
Middle runner-season comparison
Overall estimate
-2.43%
Network-adjusted course estimate
Middle 50% range
+3.37%
Observed variation (IQR)
Direction and magnitude
Relative course speed
Confidence interval
-2.10% to -0.13%
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 | Brooks School 5K | Great Brook Farm 5K | Difference |
|---|---|---|---|---|
| Rachel Wang | 2021 | 30:27.001 race | 27:24.001 race | -10.02% |
| Collette Noordzij | 2021 | 25:08.001 race | 23:45.001 race | -5.50% |
| Bric Ridder | 2021 | 23:02.001 race | 21:56.001 race | -4.78% |
| Skye Connell | 2021 | 23:27.001 race | 22:22.001 race | -4.62% |
| Parker Lial | 2021 | 24:36.001 race | 23:34.001 race | -4.20% |
| Riley Eyman | 2021 | 23:03.001 race | 22:06.001 race | -4.12% |
| Alex Tobias | 2021 | 17:30.002 races | 16:48.001 race | -4.00% |
| Katalin (Kata) Clark | 2021 | 20:54.002 races | 20:17.001 race | -2.95% |
| Catherine (Cate) Wacholz | 2021 | 24:45.001 race | 24:09.001 race | -2.42% |
| Ashley Brzezenski | 2021 | 26:49.001 race | 26:16.001 race | -2.05% |
| Oscar King | 2021 | 18:02.001 race | 17:40.001 race | -2.03% |
| James McCarron III | 2021 | 17:09.001 race | 16:50.001 race | -1.85% |
| Brianna Boucher | 2021 | 24:52.001 race | 24:26.001 race | -1.74% |
| Lauren Puglia | 2021 | 22:26.002 races | 22:04.001 race | -1.63% |
| Coco Liu | 2021 | 28:42.001 race | 28:15.001 race | -1.57% |
| Mae Lial | 2021 | 25:10.001 race | 24:51.001 race | -1.26% |
| Adyson Duval | 2021 | 27:20.002 races | 27:05.001 race | -0.91% |
| Evan Salhanick | 2021 | 20:37.002 races | 20:26.001 race | -0.89% |
| Allen Xia | 2021 | 22:23.001 race | 22:19.001 race | -0.30% |
| Ryan Growney | 2021 | 20:06.001 race | 20:03.001 race | -0.25% |
| Monica Mukherjee | 2021 | 21:38.001 race | 21:37.001 race | -0.08% |
| Camryn Flessel | 2021 | 22:11.001 race | 22:13.001 race | +0.15% |
| Lauren Phillips | 2021 | 24:44.001 race | 24:48.001 race | +0.27% |
| James (JJ) Oldershaw | 2021 | 19:29.001 race | 19:33.001 race | +0.34% |
| Andy Seals | 2021 | 18:50.003 races | 18:58.001 race | +0.71% |
| James Lyman | 2021 | 20:45.003 races | 20:58.001 race | +1.04% |
| Brandon Spector-Townsend | 2021 | 19:55.003 races | 20:10.001 race | +1.26% |
| Zebediah Stewart | 2021 | 18:31.003 races | 18:45.001 race | +1.26% |
| Jonathan Cajamarca | 2021 | 20:14.001 race | 20:31.001 race | +1.40% |
| Lucas Lu | 2021 | 22:19.001 race | 22:40.001 race | +1.57% |
| Eliza Barker | 2021 | 24:50.002 races | 25:21.001 race | +2.08% |
| Zoe Wilmerding | 2021 | 24:47.002 races | 25:25.001 race | +2.56% |
| Bennett Walker | 2021 | 32:26.001 race | 33:39.001 race | +3.75% |
| Peyton Dahmen | 2021 | 21:24.002 races | 22:17.001 race | +4.13% |