Pairwise course analysis
Brooks School 5Kvs.BB&N 5K 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
BB&N 5K Course runs faster
-6.90%
Roughly 1:23 faster for a 20:00 runner
Paired observations
123
Deep evidence
Median difference
-6.28%
Middle runner-season comparison
Overall estimate
-6.90%
Network-adjusted course estimate
Middle 50% range
+5.87%
Observed variation (IQR)
Direction and magnitude
Relative course speed
BB&N 5K Course fasterEvenBB&N 5K Course slower
Confidence interval
-7.46% to -5.17%
Scale shown
-8% to +8%
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 | BB&N 5K Course | Difference |
|---|---|---|---|---|
| Bella Choi | 2025 | 33:32.002 races | 22:50.001 race | -31.91% |
| Henry Zhu | 2025 | 34:21.492 races | 24:45.001 race | -27.96% |
| Gabriel Barreto-D'Silva | 2019 | 25:53.001 race | 21:18.001 race | -17.71% |
| Adam Jac | 2019 | 24:57.002 races | 20:37.001 race | -17.37% |
| Rumi Kaye | 2025 | 31:57.001 race | 26:35.001 race | -16.80% |
| Andy Li | 2025 | 28:46.802 races | 23:58.001 race | -16.72% |
| Dhruva Tailam | 2023 | 25:06.002 races | 21:23.001 race | -14.81% |
| Clara Choi | 2019 | 38:24.001 race | 32:50.001 race | -14.50% |
| William Hansen | 2022 | 21:52.001 race | 19:01.001 race | -13.03% |
| Andy Seals | 2021 | 21:10.003 races | 18:30.001 race | -12.60% |
| Ashley Picard | 2019 | 26:32.002 races | 23:19.001 race | -12.12% |
| Katalin (Kata) Clark | 2023 | 20:55.001 race | 18:28.001 race | -11.71% |
| Luke Desmaison | 2019 | 22:10.001 race | 19:38.001 race | -11.43% |
| John Pena | 2024 | 21:59.001 race | 19:39.001 race | -10.61% |
| Luke Ferrone | 2025 | 26:39.892 races | 23:55.001 race | -10.31% |
| Alder Hurley | 2025 | 34:19.002 races | 30:47.001 race | -10.30% |
| Brin Ferrone | 2025 | 26:43.332 races | 23:59.001 race | -10.25% |
| Lilly Maki | 2022 | 29:02.001 race | 26:05.001 race | -10.16% |
| Ethan Xie | 2024 | 22:42.001 race | 20:24.001 race | -10.13% |
| Timothy Snail | 2024 | 19:17.001 race | 17:20.001 race | -10.11% |
| Samson Oblak | 2025 | 23:17.042 races | 20:58.001 race | -9.95% |
| Phoebe Cogan | 2025 | 23:08.002 races | 20:50.001 race | -9.94% |
| Eleanor Mayer | 2019 | 26:45.002 races | 24:07.001 race | -9.84% |
| Gabriel Yu | 2021 | 28:14.001 race | 25:30.001 race | -9.68% |
| Sebastian Culleton | 2022 | 19:03.001 race | 17:15.001 race | -9.45% |
| Sebastian Colberg | 2024 | 20:48.001 race | 18:51.001 race | -9.37% |
| Gianna Carroll | 2025 | 27:01.001 race | 24:30.001 race | -9.32% |
| Brendan Kilpatrick | 2024 | 24:00.001 race | 21:46.001 race | -9.31% |
| Nashr El Auliya | 2019 | 21:11.001 race | 19:13.001 race | -9.28% |
| Johannes Eikeboom | 2024 | 21:58.001 race | 19:56.001 race | -9.26% |
| Vanessa Shipley | 2019 | 23:38.002 races | 21:30.001 race | -9.03% |
| William Trautz | 2024 | 16:50.001 race | 15:19.001 race | -9.01% |
| Brandon Spector-Townsend | 2021 | 22:26.003 races | 20:31.001 race | -8.54% |
| Pilar Bell | 2025 | 27:43.002 races | 25:23.001 race | -8.42% |
| Jack Kastner | 2024 | 21:50.001 race | 20:00.001 race | -8.40% |
| Lizzie Cochran | 2022 | 25:08.001 race | 23:04.001 race | -8.22% |
| James Carroll | 2025 | 22:31.812 races | 20:46.001 race | -7.83% |
| Hugh Park | 2021 | 22:29.003 races | 20:44.001 race | -7.78% |
| Ava Marinaro | 2025 | 28:01.002 races | 25:51.001 race | -7.73% |
| Ashley Sink | 2022 | 23:12.001 race | 21:25.001 race | -7.69% |
| Cheng Zhuang | 2021 | 23:13.002 races | 21:27.001 race | -7.61% |
| Pablo Paxtor | 2022 | 20:48.001 race | 19:15.001 race | -7.45% |
| Lorenzo Johnson | 2025 | 21:25.672 races | 19:50.001 race | -7.44% |
| Bryn Feeney | 2022 | 22:53.001 race | 21:11.001 race | -7.43% |
| Ryan Chang-Wu | 2024 | 23:09.001 race | 21:26.001 race | -7.42% |
| Molly Madigan | 2019 | 23:54.001 race | 22:08.001 race | -7.39% |
| Angelina Liberman | 2021 | 28:30.001 race | 26:26.001 race | -7.25% |
| Riley Marth | 2024 | 19:25.001 race | 18:01.001 race | -7.21% |
| Evi Robb | 2022 | 25:08.001 race | 23:21.001 race | -7.10% |
| Tori Duckworth | 2019 | 23:45.002 races | 22:04.001 race | -7.09% |
| Andrew Gilmore | 2024 | 22:23.001 race | 20:48.001 race | -7.07% |
| Alex Chen | 2024 | 21:42.001 race | 20:10.001 race | -7.07% |
| Sam Poulin | 2022 | 20:26.001 race | 19:00.001 race | -7.01% |
| William Achtmeyer | 2024 | 20:16.001 race | 18:51.001 race | -6.99% |
| Babikir Saeed | 2024 | 19:18.001 race | 17:59.001 race | -6.82% |
| Kevin Xie | 2025 | 29:30.122 races | 27:30.001 race | -6.79% |
| Phoebe Cogan | 2023 | 21:43.002 races | 20:15.001 race | -6.75% |
| Juan-Pablo Fernandez Del Castillo | 2024 | 20:30.001 race | 19:08.001 race | -6.67% |
| Eben Dooling | 2023 | 22:33.002 races | 21:03.001 race | -6.65% |
| Tyler Smith | 2024 | 20:10.001 race | 18:50.001 race | -6.61% |
| Daniel Reyes | 2021 | 24:32.001 race | 22:57.001 race | -6.45% |
| Bradley Weldon | 2022 | 19:55.001 race | 18:40.001 race | -6.28% |
| Sam Leviton | 2024 | 17:48.001 race | 16:42.001 race | -6.18% |
| Davis Woolbert | 2024 | 17:56.001 race | 16:50.001 race | -6.13% |
| Jack Good | 2024 | 19:26.001 race | 18:15.001 race | -6.09% |
| Sam Benson | 2025 | 21:44.812 races | 20:26.001 race | -6.04% |
| Juan José Torres Lara | 2022 | 19:37.001 race | 18:26.001 race | -6.03% |
| Eli Norden | 2024 | 23:46.001 race | 22:21.001 race | -5.96% |
| Cali Bernier | 2021 | 26:40.001 race | 25:05.001 race | -5.94% |
| Maksim Roman | 2024 | 18:53.001 race | 17:47.001 race | -5.83% |
| Chris Thompson | 2022 | 19:42.001 race | 18:34.001 race | -5.75% |
| Tatum Glynn | 2023 | 25:34.002 races | 24:08.001 race | -5.61% |
| Thomas Valderrama | 2022 | 21:17.001 race | 20:06.001 race | -5.56% |
| Morgan Pfeil | 2025 | 24:25.002 races | 23:04.001 race | -5.53% |
| Sienna Steeves | 2023 | 30:32.002 races | 28:53.001 race | -5.40% |
| Vincent Mezzanotte | 2024 | 20:50.001 race | 19:45.001 race | -5.20% |
| Nate Wirth | 2019 | 19:54.001 race | 18:52.001 race | -5.19% |
| Benjamin Hebbel | 2022 | 17:59.001 race | 17:03.001 race | -5.19% |
| Jack Torrisi | 2025 | 23:56.192 races | 22:42.001 race | -5.17% |
| Grace Pilkington | 2023 | 28:43.001 race | 27:15.001 race | -5.11% |
| Eita Fuse | 2024 | 17:34.001 race | 16:41.001 race | -5.03% |
| Fitz Courtney | 2024 | 17:31.001 race | 16:40.001 race | -4.85% |
| Jack Connors | 2022 | 17:33.001 race | 16:42.001 race | -4.84% |
| Evan Salhanick | 2021 | 21:16.002 races | 20:15.001 race | -4.78% |
| Eliza Barker | 2021 | 26:01.002 races | 24:53.001 race | -4.36% |
| Tori Duckworth | 2021 | 24:11.002 races | 23:09.001 race | -4.27% |
| Charles Jackivicz | 2022 | 18:53.001 race | 18:07.001 race | -4.06% |
| Forrester Clark | 2023 | 18:03.001 race | 17:21.001 race | -3.88% |
| Thomas Devlin | 2022 | 20:54.001 race | 20:06.001 race | -3.83% |
| James Lyman | 2021 | 21:48.003 races | 20:58.001 race | -3.82% |
| Nicolas Huaco | 2022 | 17:55.001 race | 17:14.001 race | -3.81% |
| Evan Wirth | 2021 | 20:22.001 race | 19:37.001 race | -3.68% |
| Edo Spadaccini | 2021 | 24:54.001 race | 23:59.001 race | -3.68% |
| Benjamin Kuo | 2022 | 18:10.001 race | 17:30.001 race | -3.67% |
| Alder Hurley | 2023 | 36:33.002 races | 35:14.001 race | -3.60% |
| John Joyce | 2022 | 17:46.001 race | 17:10.001 race | -3.38% |
| Zebediah Stewart | 2021 | 19:15.003 races | 18:36.001 race | -3.38% |
| Kamran Bradley | 2023 | 22:40.002 races | 22:00.001 race | -2.94% |
| Zoe Wilmerding | 2021 | 26:02.002 races | 25:17.001 race | -2.88% |
| Lauren Puglia | 2023 | 23:58.002 races | 23:17.001 race | -2.85% |
| Gabriel Yu | 2019 | 22:25.001 race | 21:47.001 race | -2.83% |
| James Lyman | 2019 | 20:45.001 race | 20:13.001 race | -2.57% |
| Cheng Zhuang | 2023 | 22:13.002 races | 21:39.001 race | -2.55% |
| Arden Sartori | 2023 | 25:06.002 races | 24:29.001 race | -2.46% |
| Alex Tobias | 2021 | 17:45.002 races | 17:19.001 race | -2.44% |
| Edo Spadaccini | 2019 | 24:56.002 races | 24:21.001 race | -2.34% |
| Lauren Puglia | 2021 | 22:42.002 races | 22:12.001 race | -2.20% |
| Katalin (Kata) Clark | 2021 | 21:19.002 races | 20:55.001 race | -1.88% |
| Adyson Duval | 2021 | 27:37.002 races | 27:06.001 race | -1.87% |
| Samuel Hinman | 2022 | 17:53.001 race | 17:36.001 race | -1.58% |
| Alex Tobias | 2019 | 18:32.002 races | 18:15.001 race | -1.53% |
| Adyson Duval | 2023 | 24:09.002 races | 23:53.001 race | -1.10% |
| Luke Peabody | 2022 | 18:50.001 race | 18:39.001 race | -0.97% |
| Drake Tarlow | 2023 | 20:55.002 races | 20:49.001 race | -0.48% |
| Cameron Gonzalez | 2022 | 17:52.001 race | 17:54.001 race | +0.19% |
| Gray Simanson | 2022 | 29:32.001 race | 30:02.001 race | +1.69% |
| Leo Charlamb | 2023 | 27:46.002 races | 28:46.001 race | +3.60% |
| David Jiang | 2021 | 24:46.001 race | 25:43.001 race | +3.84% |
| Armaun Dehpanah | 2023 | 22:11.002 races | 23:12.001 race | +4.58% |
| Ava Marinaro | 2023 | 28:36.002 races | 31:54.001 race | +11.54% |
| Tanay Kommareddi | 2019 | 21:15.002 races | 24:20.001 race | +14.51% |
| Taylor Armstead | 2021 | 40:06.001 race | 47:29.001 race | +18.41% |
| Samson Nwobi | 2023 | 22:26.003 races | 27:09.001 race | +21.03% |