Pairwise course analysis
Brooks School 5Kvs.RL 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
RL 5K Course runs slower
+1.98%
Roughly 23.8 seconds slower for a 20:00 runner
Paired observations
223
Deep evidence
Median difference
+3.46%
Middle runner-season comparison
Overall estimate
+1.98%
Network-adjusted course estimate
Middle 50% range
+4.63%
Observed variation (IQR)
Direction and magnitude
Relative course speed
RL 5K Course fasterEvenRL 5K Course slower
Confidence interval
+2.42% to +3.46%
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 | RL 5K Course | Difference |
|---|---|---|---|---|
| Jacquelyn Gao | 2022 | 29:25.001 race | 25:48.001 race | -12.29% |
| Grace Stanton | 2019 | 28:17.001 race | 25:26.001 race | -10.08% |
| Alice Wang | 2024 | 28:09.002 races | 25:28.001 race | -9.53% |
| Zachary Lim | 2025 | 26:10.001 race | 24:04.001 race | -8.03% |
| Sam Blank | 2025 | 20:43.001 race | 19:18.001 race | -6.84% |
| George Taggart | 2025 | 21:58.001 race | 20:47.001 race | -5.39% |
| Heng Leong | 2023 | 23:13.001 race | 22:10.001 race | -4.52% |
| Armaun Dehpanah | 2022 | 23:17.004 races | 22:15.001 race | -4.44% |
| Sadie Millett | 2023 | 22:05.001 race | 21:09.002 races | -4.23% |
| Iliana Tassev | 2023 | 31:33.001 race | 30:19.002 races | -3.91% |
| Breanna Kunkel | 2023 | 25:00.001 race | 24:08.002 races | -3.47% |
| Kevin Kerrigan | 2025 | 24:10.001 race | 23:21.001 race | -3.38% |
| Samuel Hinman | 2021 | 19:07.001 race | 18:29.001 race | -3.31% |
| Sue Hayashi | 2023 | 31:22.001 race | 30:21.001 race | -3.24% |
| Justin Jang | 2023 | 20:31.001 race | 19:52.001 race | -3.17% |
| Mateo Garciarramos Petr | 2025 | 22:20.001 race | 21:38.001 race | -3.13% |
| Ian Schmidek | 2022 | 28:29.001 race | 27:42.001 race | -2.75% |
| Joey Caspar | 2023 | 20:01.001 race | 19:31.002 races | -2.50% |
| Wes Shaller | 2025 | 25:41.001 race | 25:03.001 race | -2.47% |
| Forrester Clark | 2022 | 19:15.003 races | 18:47.001 race | -2.42% |
| Ryder Woodworth | 2025 | 21:24.001 race | 20:56.001 race | -2.18% |
| David Yu | 2025 | 25:40.001 race | 25:07.001 race | -2.14% |
| David Hermanson | 2021 | 19:53.001 race | 19:28.001 race | -2.10% |
| Vincent Gilbert | 2023 | 21:24.001 race | 21:00.002 races | -1.87% |
| Hans Vigener | 2021 | 19:34.001 race | 19:14.001 race | -1.70% |
| Benjamin Jiang | 2023 | 23:47.001 race | 23:25.001 race | -1.54% |
| Jason Minicozzi | 2025 | 17:37.001 race | 17:21.001 race | -1.51% |
| Luke Zhang | 2023 | 22:21.001 race | 22:03.001 race | -1.34% |
| Nolan McNeil | 2023 | 21:34.001 race | 21:20.001 race | -1.08% |
| Samuel Allado | 2025 | 24:22.001 race | 24:07.001 race | -1.03% |
| Philip Holland | 2025 | 19:27.001 race | 19:16.001 race | -0.94% |
| Eric Diop | 2021 | 18:36.001 race | 18:28.003 races | -0.72% |
| Arden Sartori | 2024 | 24:13.003 races | 24:04.001 race | -0.62% |
| Dash Claflin | 2025 | 19:34.001 race | 19:27.001 race | -0.60% |
| Alex Kovtenenko | 2025 | 21:15.001 race | 21:08.001 race | -0.55% |
| Chase Bellamy | 2025 | 19:35.001 race | 19:29.001 race | -0.51% |
| Ally Gilbert | 2019 | 27:17.001 race | 27:09.001 race | -0.49% |
| William Trautz | 2024 | 16:50.001 race | 16:46.001 race | -0.40% |
| Ethan Xie | 2024 | 22:42.001 race | 22:37.001 race | -0.37% |
| Timothy Snail | 2024 | 19:17.001 race | 19:13.001 race | -0.35% |
| Kylie Bogar | 2019 | 29:00.001 race | 28:56.001 race | -0.23% |
| Eli Norden | 2024 | 23:46.001 race | 23:43.001 race | -0.21% |
| Luke Driscoll | 2023 | 19:53.001 race | 19:51.002 races | -0.17% |
| Jack Connors | 2021 | 18:34.001 race | 18:34.001 race | 0.00% |
| Phoebe Cogan | 2024 | 22:51.003 races | 22:51.001 race | 0.00% |
| Brian Luppy | 2021 | 21:42.001 race | 21:43.001 race | +0.08% |
| Colby Crawford | 2025 | 20:50.001 race | 20:52.001 race | +0.16% |
| Logan Hoffman | 2023 | 21:25.001 race | 21:29.002 races | +0.31% |
| Lauren Puglia | 2022 | 26:00.004 races | 26:05.001 race | +0.32% |
| William Hansen | 2021 | 20:28.001 race | 20:35.001 race | +0.57% |
| Meghan Webb | 2019 | 23:04.001 race | 23:12.001 race | +0.58% |
| Sawyer Rogers | 2023 | 25:03.001 race | 25:13.001 race | +0.67% |
| George Madison | 2021 | 16:54.001 race | 17:01.003 races | +0.69% |
| John Pena | 2024 | 21:59.001 race | 22:09.001 race | +0.76% |
| Thomas Reichard | 2021 | 19:34.001 race | 19:43.003 races | +0.77% |
| Eben Dooling | 2022 | 23:28.004 races | 23:39.001 race | +0.78% |
| Manato Tanaka | 2025 | 24:36.001 race | 24:49.001 race | +0.88% |
| Jaden Smith | 2023 | 19:40.001 race | 19:51.002 races | +0.93% |
| Henry Orraca-Cecil | 2023 | 19:23.001 race | 19:35.002 races | +1.03% |
| Cormac Anderson | 2024 | 23:34.001 race | 23:49.001 race | +1.06% |
| Harrison O'Connor | 2024 | 25:56.002 races | 26:16.001 race | +1.29% |
| Alexander Wasynczuk | 2024 | 21:16.001 race | 21:33.001 race | +1.33% |
| Jake Devries | 2023 | 21:09.001 race | 21:27.002 races | +1.42% |
| James Joyce | 2021 | 21:46.001 race | 22:05.001 race | +1.45% |
| Riley Marth | 2024 | 19:25.001 race | 19:42.001 race | +1.46% |
| Babikir Saeed | 2024 | 19:18.001 race | 19:36.001 race | +1.55% |
| Tyler Smith | 2024 | 20:10.001 race | 20:29.001 race | +1.57% |
| Luke Taylor | 2022 | 18:49.001 race | 19:07.001 race | +1.59% |
| Aaron DuFrend | 2025 | 22:57.001 race | 23:20.001 race | +1.67% |
| Nick Costantino | 2023 | 17:53.001 race | 18:11.002 races | +1.68% |
| Ava Marinaro | 2024 | 28:49.003 races | 29:20.001 race | +1.79% |
| Katie Tantillo | 2023 | 23:05.001 race | 23:30.002 races | +1.81% |
| Sebastian Colberg | 2024 | 20:48.001 race | 21:11.001 race | +1.84% |
| Justin Lin | 2025 | 23:58.001 race | 24:25.001 race | +1.88% |
| Thomas Scordino | 2021 | 21:11.001 race | 21:37.001 race | +2.05% |
| Alex Young | 2023 | 18:43.001 race | 19:06.001 race | +2.05% |
| Cate Corbett | 2023 | 20:15.001 race | 20:40.002 races | +2.06% |
| Davis Woolbert | 2024 | 17:56.001 race | 18:19.001 race | +2.14% |
| Kate McBride | 2023 | 24:51.001 race | 25:24.002 races | +2.21% |
| Joey Caspar | 2022 | 19:33.001 race | 19:59.001 race | +2.22% |
| Sam Blank | 2023 | 20:53.001 race | 21:21.001 race | +2.23% |
| Alex Chen | 2024 | 21:42.001 race | 22:12.001 race | +2.30% |
| Megan Corry | 2023 | 25:15.001 race | 25:50.002 races | +2.31% |
| Andrew Bittner | 2022 | 20:47.001 race | 21:16.001 race | +2.33% |
| Maksim Roman | 2022 | 19:51.001 race | 20:20.001 race | +2.43% |
| Henry Horvath | 2022 | 18:40.001 race | 19:08.001 race | +2.50% |
| Quinn Mullaney | 2022 | 25:53.003 races | 26:32.001 race | +2.51% |
| Brendan Brosnan | 2023 | 19:12.001 race | 19:41.002 races | +2.52% |
| Kofi Fordjour | 2021 | 16:59.001 race | 17:25.003 races | +2.55% |
| Ryan Connolly | 2024 | 20:08.001 race | 20:39.001 race | +2.57% |
| Jack Good | 2024 | 19:26.001 race | 19:56.001 race | +2.57% |
| Johannes Eikeboom | 2024 | 21:58.001 race | 22:32.001 race | +2.58% |
| William Trautz | 2022 | 17:43.001 race | 18:12.001 race | +2.73% |
| Meg Dugan | 2019 | 20:45.001 race | 21:19.001 race | +2.73% |
| Antonio Martinez | 2024 | 20:41.001 race | 21:15.001 race | +2.74% |
| Fitz Courtney | 2022 | 18:14.001 race | 18:44.001 race | +2.74% |
| Adyson Duval | 2024 | 24:16.003 races | 24:56.001 race | +2.75% |
| Tatum Glynn | 2024 | 24:39.002 races | 25:20.001 race | +2.77% |
| Peyton Dahmen | 2022 | 21:57.003 races | 22:34.001 race | +2.81% |
| Rileigh Murphy-Morris | 2023 | 29:26.001 race | 30:16.002 races | +2.83% |
| Adyson Duval | 2022 | 25:25.004 races | 26:09.001 race | +2.89% |
| Caitlin Hayes | 2019 | 30:03.001 race | 30:56.001 race | +2.94% |
| Dylan Fu | 2023 | 21:47.001 race | 22:26.002 races | +2.98% |
| Juan-Pablo Fernandez Del Castillo | 2024 | 20:30.001 race | 21:07.001 race | +3.01% |
| Stealla Curwin-Amfitheatrof | 2023 | 22:02.001 race | 22:42.002 races | +3.03% |
| Rory Christopher | 2025 | 22:36.001 race | 23:18.001 race | +3.10% |
| Cassidy Bruno | 2023 | 20:55.001 race | 21:34.002 races | +3.11% |
| Owen Barry | 2023 | 20:17.001 race | 20:55.002 races | +3.12% |
| Bennett Jones | 2022 | 18:25.001 race | 19:00.001 race | +3.17% |
| Tommy Gaffey | 2019 | 17:13.001 race | 17:46.001 race | +3.19% |
| Julia Blake | 2023 | 30:56.001 race | 31:56.002 races | +3.23% |
| Allison Luo | 2023 | 25:04.001 race | 25:56.002 races | +3.46% |
| Brendan Kilpatrick | 2024 | 24:00.001 race | 24:50.001 race | +3.47% |
| John (Jake) Popeo | 2021 | 20:35.001 race | 21:18.003 races | +3.48% |
| Christian MacCallum | 2023 | 20:22.001 race | 21:05.001 race | +3.52% |
| Lindsay Popeo | 2021 | 22:41.001 race | 23:29.001 race | +3.53% |
| Joseph Koh | 2024 | 19:03.001 race | 19:44.001 race | +3.59% |
| Carver Porter | 2022 | 20:22.001 race | 21:06.001 race | +3.60% |
| Fitz Courtney | 2024 | 17:31.001 race | 18:09.001 race | +3.62% |
| Carter Bartel | 2021 | 18:26.001 race | 19:06.001 race | +3.62% |
| Gabriel Simmons | 2022 | 21:02.001 race | 21:48.001 race | +3.65% |
| Cate Devaney | 2023 | 23:40.001 race | 24:32.002 races | +3.66% |
| Alexander Messier | 2021 | 20:13.001 race | 20:58.002 races | +3.71% |
| Hadley Stanton | 2019 | 25:19.001 race | 26:16.001 race | +3.75% |
| Lindsey Bennett | 2023 | 23:41.001 race | 24:35.002 races | +3.80% |
| Michael Bobo | 2022 | 21:00.001 race | 21:48.001 race | +3.81% |
| William Achtmeyer | 2024 | 20:16.001 race | 21:03.001 race | +3.87% |
| Sophia Hansen | 2019 | 21:46.001 race | 22:37.001 race | +3.91% |
| Sam Leviton | 2024 | 17:48.001 race | 18:30.001 race | +3.93% |
| Luca Mezzanotte | 2022 | 20:19.001 race | 21:07.001 race | +3.94% |
| Terry Qi | 2023 | 22:13.001 race | 23:06.001 race | +3.98% |
| Ray Tie | 2023 | 23:27.001 race | 24:23.002 races | +3.98% |
| Grace Fundaro | 2023 | 25:02.001 race | 26:03.002 races | +4.06% |
| Juan-Pablo Fernandez Del Castillo | 2022 | 21:44.001 race | 22:37.001 race | +4.06% |
| Kamran Bradley | 2022 | 23:13.003 races | 24:10.001 race | +4.09% |
| Akshay Kumar | 2021 | 20:38.001 race | 21:29.003 races | +4.12% |
| Davis Woolbert | 2022 | 18:06.001 race | 18:51.001 race | +4.14% |
| Zoe Wilmerding | 2022 | 22:54.004 races | 23:52.001 race | +4.22% |
| Anton Balyuk | 2023 | 20:16.001 race | 21:08.002 races | +4.28% |
| Vedant Deokar | 2022 | 17:44.001 race | 18:30.001 race | +4.32% |
| Sam Millay | 2021 | 18:51.001 race | 19:40.001 race | +4.33% |
| Annabel McNamara | 2023 | 26:08.001 race | 27:17.002 races | +4.40% |
| Sophia Lee | 2021 | 24:09.001 race | 25:13.001 race | +4.42% |
| Collin Graham | 2025 | 20:59.001 race | 21:55.001 race | +4.45% |
| Henry Ramanathan | 2022 | 20:07.001 race | 21:01.001 race | +4.47% |
| Colleen Leary | 2023 | 23:37.001 race | 24:41.001 race | +4.52% |
| Eric Zhu | 2021 | 19:32.001 race | 20:25.002 races | +4.52% |
| David Sullivan | 2021 | 18:23.001 race | 19:13.001 race | +4.53% |
| Thaddaeus Flatz-Ehrfeld | 2025 | 19:34.001 race | 20:28.001 race | +4.60% |
| Alena Mulhern | 2019 | 25:13.001 race | 26:24.001 race | +4.69% |
| Ben Guenther | 2021 | 18:19.001 race | 19:11.001 race | +4.73% |
| Eita Fuse | 2024 | 17:34.001 race | 18:24.001 race | +4.74% |
| Lilly Bradley | 2019 | 20:06.001 race | 21:04.001 race | +4.81% |
| Miles Sandoski | 2022 | 17:51.001 race | 18:43.001 race | +4.86% |
| Ryan Chiari | 2019 | 19:44.001 race | 20:42.001 race | +4.90% |
| Florence Morlock | 2022 | 25:09.001 race | 26:23.001 race | +4.90% |
| Molly Epker | 2021 | 22:44.001 race | 23:52.001 race | +4.99% |
| Eloise Daniello | 2019 | 21:35.001 race | 22:40.001 race | +5.02% |
| AJ Gorman | 2022 | 17:53.001 race | 18:47.001 race | +5.03% |
| Sunny Qian | 2023 | 23:13.001 race | 24:25.002 races | +5.17% |
| Eliza Barker | 2022 | 25:27.004 races | 26:46.001 race | +5.17% |
| Katalin (Kata) Clark | 2022 | 20:15.003 races | 21:18.001 race | +5.19% |
| Nathaniel Voss | 2022 | 18:16.001 race | 19:13.001 race | +5.20% |
| Zebediah Stewart | 2022 | 19:28.003 races | 20:29.001 race | +5.22% |
| Kenzie Murphy | 2023 | 21:58.001 race | 23:09.002 races | +5.39% |
| Khalid Abdulle | 2021 | 18:33.001 race | 19:33.001 race | +5.39% |
| Leighton Glass | 2023 | 22:10.001 race | 23:23.002 races | +5.49% |
| Samson Oblak | 2024 | 22:06.003 races | 23:19.002 races | +5.51% |
| Aidan Humphreys | 2019 | 19:54.001 race | 21:00.001 race | +5.53% |
| Noah Douglas | 2021 | 18:23.001 race | 19:24.001 race | +5.53% |
| Martin Erath | 2023 | 20:56.001 race | 22:07.002 races | +5.65% |
| Andrew Gilmore | 2024 | 22:23.001 race | 23:40.001 race | +5.73% |
| Michael Thomas | 2021 | 18:40.001 race | 19:45.002 races | +5.80% |
| Nick Costantino | 2022 | 18:10.001 race | 19:14.001 race | +5.87% |
| Sawyer Rogers | 2022 | 24:54.001 race | 26:23.001 race | +5.96% |
| Brooke Hansen | 2023 | 24:05.001 race | 25:33.002 races | +6.09% |
| Chloe Catalano | 2023 | 27:05.001 race | 28:44.002 races | +6.09% |
| Owen Barry | 2022 | 19:35.001 race | 20:47.001 race | +6.13% |
| Jeremy Eaton | 2022 | 20:20.001 race | 21:35.001 race | +6.15% |
| Lorenzo Johnson | 2022 | 19:55.004 races | 21:09.001 race | +6.19% |
| Virginia Thompson | 2019 | 26:27.001 race | 28:08.001 race | +6.36% |
| Jackson Pagan | 2022 | 19:36.001 race | 20:51.001 race | +6.38% |
| Aaron Stanger | 2022 | 18:04.001 race | 19:14.001 race | +6.46% |
| Kajsa Harrington | 2021 | 22:27.001 race | 23:54.001 race | +6.46% |
| James Nichols-Worley | 2022 | 20:51.001 race | 22:12.001 race | +6.47% |
| Luis Sosa Espinal | 2024 | 21:06.001 race | 22:28.001 race | +6.48% |
| Reuben Siegel | 2022 | 23:31.001 race | 25:03.001 race | +6.52% |
| Maggie Cabot | 2022 | 24:32.001 race | 26:08.001 race | +6.52% |
| Armaun Dehpanah | 2024 | 20:36.002 races | 21:57.001 race | +6.55% |
| Charlotte Hayward | 2021 | 21:47.001 race | 23:13.001 race | +6.58% |
| Cassidy Bruno | 2022 | 21:38.001 race | 23:04.001 race | +6.63% |
| John Joyce | 2024 | 16:51.001 race | 17:59.001 race | +6.73% |
| Sadie Millett | 2022 | 20:25.001 race | 21:48.001 race | +6.78% |
| Sebastian Keleher | 2023 | 22:38.001 race | 24:12.002 races | +6.92% |
| Maksim Roman | 2024 | 18:53.001 race | 20:12.001 race | +6.97% |
| Jacob Snell | 2022 | 19:09.001 race | 20:30.001 race | +7.05% |
| Evan Schneider | 2023 | 21:44.001 race | 23:16.002 races | +7.06% |
| Luke Ferrone | 2024 | 27:38.003 races | 29:35.001 race | +7.06% |
| Alexander Behn | 2022 | 19:46.001 race | 21:10.001 race | +7.08% |
| Mitchell Ladd | 2022 | 22:29.001 race | 24:05.002 races | +7.12% |
| Katie Wipf | 2019 | 22:50.001 race | 24:28.001 race | +7.15% |
| Katie Tantillo | 2022 | 22:36.001 race | 24:13.001 race | +7.15% |
| Lorenzo Johnson | 2024 | 20:29.003 races | 21:57.001 race | +7.16% |
| Erin Farmer | 2019 | 30:18.001 race | 32:31.001 race | +7.32% |
| Alyssa McGuirl | 2023 | 27:45.001 race | 29:49.002 races | +7.45% |
| James Carroll | 2024 | 21:53.003 races | 23:33.001 race | +7.62% |
| Will McLane | 2021 | 18:03.001 race | 19:26.001 race | +7.66% |
| Ryan Chang-Wu | 2024 | 23:09.001 race | 24:59.001 race | +7.92% |
| James Skowronek | 2024 | 22:56.003 races | 24:53.001 race | +8.50% |
| Tobias Jonas | 2022 | 22:23.001 race | 24:18.001 race | +8.56% |
| Alaina Millian | 2023 | 26:22.001 race | 28:41.002 races | +8.79% |
| Alexa Meekins | 2023 | 25:45.001 race | 28:03.002 races | +8.93% |
| Thomas Ireland | 2023 | 22:33.001 race | 24:35.002 races | +9.02% |
| Florence Morlock | 2023 | 24:16.001 race | 26:28.002 races | +9.07% |
| Peter Favero | 2022 | 18:06.001 race | 19:47.001 race | +9.30% |
| Grant Coldren | 2019 | 19:52.001 race | 21:49.001 race | +9.82% |
| Maddie Stearns | 2019 | 23:12.001 race | 25:29.001 race | +9.84% |
| David Jiang | 2022 | 24:12.003 races | 26:35.001 race | +9.85% |
| Brandon Spector-Townsend | 2022 | 20:09.004 races | 22:10.001 race | +10.01% |
| Garner Thompson | 2019 | 19:33.001 race | 21:41.001 race | +10.91% |
| Daniel Reyes | 2022 | 20:27.003 races | 22:57.001 race | +12.22% |
| Gigi Gillard | 2019 | 28:15.001 race | 32:05.001 race | +13.57% |
| John Brice | 2023 | 21:17.001 race | 24:15.002 races | +13.94% |