Pairwise course analysis
Derryfield Parkvs.DeMeritt Hill Farm
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
DeMeritt Hill Farm runs slower
+1.78%
Roughly 21.4 seconds slower for a 20:00 runner
Paired observations
55
Strong evidence
Median difference
+1.78%
Middle runner-season comparison
Overall estimate
+1.78%
Network-adjusted course estimate
Middle 50% range
+5.97%
Observed variation (IQR)
Direction and magnitude
Relative course speed
Confidence interval
+1.93% to +4.00%
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 | Derryfield Park | DeMeritt Hill Farm | Difference |
|---|---|---|---|---|
| Greg Thomas | 2026 | 21:22.301 race | 20:50.501 race | -2.48% |
| Landon Towsley | 2026 | 19:48.701 race | 19:25.001 race | -1.99% |
| Oliver Lehman | 2026 | 16:55.101 race | 16:38.301 race | -1.66% |
| Alistair Smith | 2026 | 18:34.701 race | 18:16.701 race | -1.61% |
| Orion Talbot | 2026 | 18:48.001 race | 18:31.401 race | -1.47% |
| Luke Ryan | 2026 | 21:52.801 race | 21:37.301 race | -1.18% |
| Cian Elly | 2026 | 18:39.201 race | 18:28.401 race | -0.96% |
| Liam Tripod | 2026 | 18:03.601 race | 17:54.901 race | -0.80% |
| Simon Lamb | 2026 | 19:25.801 race | 19:18.401 race | -0.63% |
| Joshua Coates | 2026 | 18:59.101 race | 18:54.501 race | -0.40% |
| Simeon Howard | 2026 | 18:40.001 race | 18:38.401 race | -0.14% |
| Ben Fletcher | 2026 | 19:14.501 race | 19:14.201 race | -0.03% |
| Levi Clapp | 2026 | 16:48.301 race | 16:48.101 race | -0.02% |
| Sam Smith | 2026 | 20:46.301 race | 20:48.601 race | +0.18% |
| William Scott | 2026 | 18:37.601 race | 18:40.501 race | +0.26% |
| Siddharth Sanjay | 2026 | 18:24.201 race | 18:28.401 race | +0.38% |
| Ryker Andersen | 2026 | 17:58.701 race | 18:02.901 race | +0.39% |
| Ian Kiefer | 2026 | 17:11.801 race | 17:17.001 race | +0.50% |
| Brendan Banafato | 2026 | 17:10.701 race | 17:17.001 race | +0.61% |
| Mason Gardner | 2026 | 17:23.101 race | 17:34.501 race | +1.09% |
| Michael Crosby | 2026 | 18:37.601 race | 18:50.101 race | +1.12% |
| George Stewart | 2026 | 18:41.101 race | 18:55.201 race | +1.26% |
| Finnegan Kovar | 2026 | 18:19.401 race | 18:35.301 race | +1.45% |
| Max Goupil | 2026 | 16:50.301 race | 17:05.401 race | +1.49% |
| James Peavey | 2026 | 18:40.501 race | 18:58.401 race | +1.60% |
| Joshua Gaudet | 2026 | 20:48.401 race | 21:08.401 race | +1.60% |
| James Lavers | 2026 | 17:24.601 race | 17:41.701 race | +1.64% |
| William Barr | 2026 | 21:19.001 race | 21:41.801 race | +1.78% |
| Wyatt Russell | 2026 | 21:21.301 race | 21:46.401 race | +1.96% |
| Dylan Verde | 2026 | 20:01.401 race | 20:29.301 race | +2.32% |
| Roger Soucy | 2026 | 22:39.501 race | 23:11.301 race | +2.34% |
| Jax Marshall | 2026 | 18:38.801 race | 19:06.801 race | +2.50% |
| Justin Pitre | 2026 | 22:04.001 race | 22:37.301 race | +2.52% |
| Landon Jacquet | 2026 | 20:07.801 race | 20:44.001 race | +3.00% |
| Nathan Fonseca | 2026 | 20:53.701 race | 21:31.801 race | +3.04% |
| Ian Sandahl | 2026 | 18:36.201 race | 19:11.001 race | +3.12% |
| Chase Paiva | 2026 | 17:20.601 race | 17:57.901 race | +3.58% |
| Simon Hartshorne | 2026 | 19:01.501 race | 19:47.401 race | +4.02% |
| William Clark | 2026 | 19:48.301 race | 20:43.401 race | +4.64% |
| Jack Puro | 2026 | 19:56.801 race | 20:56.601 race | +5.00% |
| Nick Degruttola | 2026 | 19:54.801 race | 21:08.301 race | +6.15% |
| Emrys Herman | 2026 | 20:35.901 race | 21:53.201 race | +6.25% |
| Matthew Zaffini | 2026 | 20:02.601 race | 21:17.901 race | +6.26% |
| Judah Howard | 2026 | 19:02.901 race | 20:19.001 race | +6.66% |
| Gavin Simon | 2026 | 19:14.001 race | 20:31.801 race | +6.74% |
| Will Dichard | 2026 | 22:33.701 race | 24:07.001 race | +6.89% |
| Ryan Pawlowski | 2026 | 19:50.101 race | 21:12.401 race | +6.92% |
| Andrew Campbell | 2026 | 19:35.801 race | 20:57.501 race | +6.95% |
| Chris Lanouette | 2026 | 24:06.001 race | 26:13.701 race | +8.83% |
| Jonathan Kerrigan | 2026 | 24:58.901 race | 27:11.301 race | +8.83% |
| Daniel Kerrigan | 2026 | 22:49.901 race | 24:54.601 race | +9.10% |
| George Kohl | 2026 | 18:43.501 race | 20:28.701 race | +9.36% |
| Conall Jumper | 2026 | 17:49.101 race | 19:30.501 race | +9.48% |
| Jack Baker | 2026 | 23:06.701 race | 25:34.401 race | +10.65% |
| Martin Towne | 2026 | 20:16.601 race | 23:53.901 race | +17.86% |