Pairwise course analysis
Brooks School 5Kvs.Andover 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
Andover 5K runs faster
-3.93%
Roughly 47.2 seconds faster for a 20:00 runner
Paired observations
21
Developing evidence
Median difference
-1.28%
Middle runner-season comparison
Overall estimate
-3.93%
Network-adjusted course estimate
Middle 50% range
+3.56%
Observed variation (IQR)
Direction and magnitude
Relative course speed
Confidence interval
-3.46% to +1.09%
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 | Andover 5K | Difference |
|---|---|---|---|---|
| Condy Bao | 2021 | 21:31.001 race | 19:46.001 race | -8.13% |
| Andrew Hung | 2021 | 22:47.001 race | 21:03.001 race | -7.61% |
| Martin Li | 2021 | 23:05.001 race | 21:28.001 race | -7.00% |
| AJ Gorman | 2021 | 18:37.001 race | 17:46.001 race | -4.57% |
| Hayden Gobron | 2021 | 18:46.001 race | 17:57.001 race | -4.35% |
| Celia Cheng | 2021 | 21:03.001 race | 20:23.001 race | -3.17% |
| Charlotte Hayward | 2021 | 21:47.001 race | 21:06.001 race | -3.14% |
| Kate Wei | 2021 | 25:23.001 race | 24:43.001 race | -2.63% |
| Sofia Samuels | 2021 | 25:38.001 race | 25:07.001 race | -2.02% |
| Claire Mao | 2021 | 24:32.001 race | 24:05.001 race | -1.83% |
| Rebecca Janfaza | 2021 | 26:06.001 race | 25:46.001 race | -1.28% |
| Allison Park | 2021 | 24:29.001 race | 24:15.001 race | -0.95% |
| Ella Berger | 2021 | 24:41.001 race | 24:33.001 race | -0.54% |
| Will Ryckman | 2021 | 21:03.001 race | 20:59.001 race | -0.32% |
| Angie Feng | 2021 | 24:47.001 race | 24:45.001 race | -0.13% |
| Sophia Lee | 2021 | 24:09.001 race | 24:13.001 race | +0.28% |
| Lindsay Popeo | 2021 | 22:41.001 race | 22:50.001 race | +0.66% |
| Molly Epker | 2021 | 22:44.001 race | 22:58.001 race | +1.03% |
| James Nichols-Worley | 2021 | 18:48.001 race | 19:03.001 race | +1.33% |
| Lara Poole | 2021 | 25:30.001 race | 25:55.001 race | +1.63% |
| Kajsa Harrington | 2021 | 22:27.001 race | 26:59.001 race | +20.19% |