Pairwise course analysis
WNH 5Kvs.Groton School
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
Groton School runs faster
-4.40%
Roughly 52.8 seconds faster for a 20:00 runner
Paired observations
68
Strong evidence
Median difference
-3.38%
Middle runner-season comparison
Overall estimate
-4.40%
Network-adjusted course estimate
Middle 50% range
+3.64%
Observed variation (IQR)
Direction and magnitude
Relative course speed
Groton School fasterEvenGroton School slower
Confidence interval
-4.14% to -2.87%
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 | WNH 5K | Groton School | Difference |
|---|---|---|---|---|
| David (Hershie) Liebowitz | 2021 | 22:27.001 race | 20:22.001 race | -9.28% |
| Akhilsai Damera | 2021 | 20:49.001 race | 18:54.001 race | -9.21% |
| Caitlin Fitzgerald | 2021 | 24:17.001 race | 22:05.001 race | -9.06% |
| Michael Allen | 2021 | 21:54.001 race | 20:07.001 race | -8.14% |
| Chloe Clifford | 2021 | 21:30.001 race | 19:50.001 race | -7.75% |
| Margaret Kaneb | 2021 | 26:35.001 race | 24:38.003 races | -7.34% |
| John (Jake) Popeo | 2021 | 19:55.001 race | 18:31.001 race | -7.03% |
| Sheena Bakare | 2021 | 25:59.001 race | 24:15.004 races | -6.67% |
| Megan Corry | 2021 | 23:52.001 race | 22:17.001 race | -6.63% |
| Aly Mantville | 2021 | 25:06.001 race | 23:34.001 race | -6.11% |
| Ruby Fehm | 2021 | 21:35.001 race | 20:17.004 races | -6.02% |
| Sophia Deng | 2021 | 24:39.001 race | 23:14.003 races | -5.75% |
| Ken Suzuki | 2021 | 20:51.001 race | 19:40.001 race | -5.68% |
| Peter Chen | 2021 | 22:55.001 race | 21:37.001 race | -5.67% |
| Brooke Hansen | 2021 | 23:22.001 race | 22:07.001 race | -5.35% |
| Colleen Leary | 2021 | 23:30.001 race | 22:15.001 race | -5.32% |
| Kofi Fordjour | 2021 | 17:04.001 race | 16:11.001 race | -5.18% |
| Jack Lionette | 2021 | 17:34.001 race | 16:41.004 races | -5.03% |
| Chloe Farel | 2021 | 26:49.001 race | 25:29.001 race | -4.97% |
| Anders Caspersen | 2021 | 22:28.001 race | 21:24.002 races | -4.75% |
| David Sullivan | 2021 | 18:43.001 race | 17:51.001 race | -4.63% |
| Ella Richards | 2021 | 24:53.001 race | 23:44.001 race | -4.62% |
| George Madison | 2021 | 16:57.001 race | 16:10.001 race | -4.62% |
| Damien West | 2021 | 20:57.001 race | 19:59.001 race | -4.61% |
| Andres Palacios | 2021 | 20:46.001 race | 19:52.003 races | -4.33% |
| Wren Fortunoff | 2021 | 22:12.001 race | 21:17.004 races | -4.13% |
| Lang Burgess | 2021 | 24:45.001 race | 23:45.004 races | -4.04% |
| Michael Thomas | 2021 | 18:45.001 race | 18:00.001 race | -4.00% |
| Caroline Creasy | 2021 | 23:48.001 race | 22:51.003 races | -3.99% |
| Bradley Weldon | 2021 | 20:46.001 race | 19:57.001 race | -3.93% |
| Thomas Valderrama | 2021 | 22:05.001 race | 21:17.001 race | -3.62% |
| Christopher Hovet | 2021 | 18:20.001 race | 17:41.004 races | -3.55% |
| Jaden Smith | 2021 | 19:59.001 race | 19:18.001 race | -3.42% |
| Lindy Zhang | 2021 | 24:32.001 race | 23:42.004 races | -3.40% |
| Jack Wang | 2021 | 18:48.001 race | 18:10.003 races | -3.37% |
| Clare LaMattina | 2021 | 23:44.001 race | 22:57.001 race | -3.30% |
| Tristan Parmentier | 2021 | 19:52.001 race | 19:13.001 race | -3.27% |
| Vivan Das | 2021 | 20:04.001 race | 19:26.004 races | -3.16% |
| Stanislas Robert | 2021 | 18:07.001 race | 17:33.004 races | -3.13% |
| Lizzie Cochran | 2021 | 26:29.001 race | 25:41.001 race | -3.02% |
| Trip Wight | 2021 | 20:49.001 race | 20:12.003 races | -2.96% |
| Ryan Chiari | 2021 | 18:49.001 race | 18:16.001 race | -2.92% |
| Sam Poulin | 2021 | 19:30.001 race | 18:57.001 race | -2.82% |
| Maddie Stearns | 2021 | 22:36.001 race | 21:59.001 race | -2.73% |
| Eloise Daniello | 2021 | 23:29.001 race | 22:53.001 race | -2.56% |
| Ross Tejeda | 2021 | 17:22.001 race | 16:57.001 race | -2.40% |
| Cameron Gonzalez | 2021 | 18:53.001 race | 18:26.001 race | -2.38% |
| Tori Reece | 2021 | 24:09.001 race | 23:35.003 races | -2.35% |
| Penelope Tregoe | 2021 | 23:33.001 race | 23:04.004 races | -2.05% |
| Mia McLean | 2021 | 23:39.001 race | 23:14.001 race | -1.76% |
| Jeremy Gall | 2021 | 19:27.001 race | 19:08.004 races | -1.63% |
| Liv Ding | 2021 | 25:59.001 race | 25:35.004 races | -1.54% |
| Mark Henshon | 2021 | 17:20.001 race | 17:04.001 race | -1.54% |
| John (Jack) Tompros | 2021 | 20:48.001 race | 20:31.001 race | -1.36% |
| Nicolas Huaco | 2021 | 19:05.001 race | 18:50.001 race | -1.31% |
| Eric Diop | 2021 | 17:57.001 race | 17:43.001 race | -1.30% |
| Thomas Reichard | 2021 | 19:05.001 race | 18:52.001 race | -1.14% |
| Evi Robb | 2021 | 25:22.001 race | 25:08.001 race | -0.92% |
| Sophia Hansen | 2021 | 22:44.001 race | 22:32.001 race | -0.88% |
| Shawna Liu | 2021 | 25:40.001 race | 25:28.001 race | -0.78% |
| Katie Wipf | 2021 | 21:27.001 race | 21:17.001 race | -0.78% |
| Luke Driscoll | 2021 | 21:04.001 race | 21:00.001 race | -0.32% |
| James Pener | 2021 | 18:11.001 race | 18:13.001 race | +0.18% |
| Emily Williams | 2021 | 23:49.001 race | 23:59.001 race | +0.70% |
| Carter Lightburn | 2021 | 19:56.001 race | 20:09.003 races | +1.09% |
| Victor Xu | 2021 | 22:13.001 race | 22:30.001 race | +1.28% |
| Ian Bayliss | 2021 | 19:28.001 race | 19:56.001 race | +2.40% |
| John Brice | 2021 | 23:40.001 race | 24:33.001 race | +3.73% |