Pairwise course analysis
Andover 5Kvs.St. Mark's School Championship 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
St. Mark's School Championship Course runs slower
+2.75%
Roughly 33.0 seconds slower for a 20:00 runner
Paired observations
14
Limited evidence
Median difference
+3.92%
Middle runner-season comparison
Overall estimate
+2.75%
Network-adjusted course estimate
Middle 50% range
+2.71%
Observed variation (IQR)
Direction and magnitude
Relative course speed
Confidence interval
+3.34% to +5.41%
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 | Andover 5K | St. Mark's School Championship Course | Difference |
|---|---|---|---|---|
| Bennett Jones | 2021 | 18:48.001 race | 19:07.003 races | +1.68% |
| Will Ryckman | 2021 | 20:59.001 race | 21:22.002 races | +1.83% |
| AJ Gorman | 2021 | 17:46.001 race | 18:09.003 races | +2.16% |
| Steven Zhang | 2021 | 18:38.001 race | 19:12.002 races | +3.04% |
| Cooper Wang | 2021 | 22:36.001 race | 23:21.002 races | +3.32% |
| Hayden Gobron | 2021 | 17:57.001 race | 18:35.002 races | +3.53% |
| Martin Li | 2021 | 21:28.001 race | 22:16.002 races | +3.73% |
| James Nichols-Worley | 2021 | 19:03.001 race | 19:50.003 races | +4.11% |
| Liam Childs | 2021 | 21:52.001 race | 22:59.002 races | +5.11% |
| David Xie | 2021 | 24:07.001 race | 25:25.002 races | +5.39% |
| Condy Bao | 2021 | 19:46.001 race | 20:58.002 races | +6.07% |
| Eric Zhang | 2021 | 22:07.001 race | 23:31.002 races | +6.33% |
| Andrew Hung | 2021 | 21:03.001 race | 22:36.001 race | +7.36% |
| Jacob Cifuentes | 2021 | 23:04.001 race | 24:51.002 races | +7.73% |