Pairwise course analysis
St. Georges 5Kvs.Brooks School 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
Brooks School 5K runs slower
+0.58%
Roughly 7.0 seconds slower for a 20:00 runner
Paired observations
210
Deep evidence
Median difference
+0.86%
Middle runner-season comparison
Overall estimate
+0.58%
Network-adjusted course estimate
Middle 50% range
+6.31%
Observed variation (IQR)
Direction and magnitude
Relative course speed
Brooks School 5K fasterEvenBrooks School 5K slower
Confidence interval
+0.26% to +1.70%
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 | St. Georges 5K | Brooks School 5K | Difference |
|---|---|---|---|---|
| Samson Nwobi | 2023 | 30:43.001 race | 22:26.003 races | -26.97% |
| Isabella (Izzy) Mundel | 2024 | 34:30.001 race | 30:41.002 races | -11.06% |
| Ryan Growney | 2022 | 21:46.003 races | 19:40.001 race | -9.65% |
| Carter Hudson | 2024 | 26:57.001 race | 24:27.001 race | -9.28% |
| Shu Ke | 2019 | 30:40.001 race | 28:08.001 race | -8.26% |
| Ryan Growney | 2021 | 21:53.002 races | 20:06.001 race | -8.15% |
| Cally Garth | 2021 | 28:55.002 races | 26:38.001 race | -7.90% |
| A Kim | 2024 | 32:45.001 race | 30:15.001 race | -7.63% |
| Pablo Paxtor | 2022 | 22:30.001 race | 20:48.001 race | -7.56% |
| Vinh Do | 2022 | 24:39.001 race | 22:57.001 race | -6.90% |
| Joey Huang | 2024 | 24:10.001 race | 22:33.002 races | -6.69% |
| Jimmy Zhong | 2022 | 25:24.001 race | 23:50.001 race | -6.17% |
| Joseph Koh | 2025 | 20:39.001 race | 19:28.081 race | -5.72% |
| Theodore Dowd | 2022 | 24:46.001 race | 23:22.001 race | -5.65% |
| Oscar King | 2021 | 18:59.002 races | 18:02.001 race | -5.00% |
| Benjamin Kuo | 2022 | 19:05.001 race | 18:10.001 race | -4.80% |
| Allen Xia | 2021 | 23:29.002 races | 22:23.001 race | -4.68% |
| Leo Gu | 2022 | 24:01.003 races | 22:54.001 race | -4.65% |
| Angela Pedulli | 2024 | 26:01.001 race | 24:49.002 races | -4.61% |
| Jasmine Zhang | 2024 | 26:05.001 race | 24:53.002 races | -4.60% |
| Catherine (Cate) Wacholz | 2021 | 25:55.002 races | 24:45.001 race | -4.50% |
| Vanessa Leung | 2024 | 30:35.001 race | 29:13.002 races | -4.47% |
| Camden Jeppsen | 2024 | 19:35.001 race | 18:43.002 races | -4.43% |
| Benjamin Hebbel | 2022 | 18:48.001 race | 17:59.001 race | -4.34% |
| Corinne O'Loughlin | 2019 | 27:11.003 races | 26:01.001 race | -4.29% |
| Riley Eyman | 2022 | 22:10.003 races | 21:14.001 race | -4.21% |
| Kayda Henroid | 2024 | 28:31.001 race | 27:19.002 races | -4.21% |
| Bella Chen | 2024 | 27:48.001 race | 26:39.002 races | -4.14% |
| Cameron Gonzalez | 2022 | 18:38.001 race | 17:52.001 race | -4.11% |
| Leon Stanley | 2022 | 23:33.001 race | 22:35.001 race | -4.10% |
| Riley Eyman | 2021 | 24:02.001 race | 23:03.001 race | -4.09% |
| Charles Jackivicz | 2022 | 19:41.001 race | 18:53.001 race | -4.06% |
| Armaun Dehpanah | 2023 | 23:07.001 race | 22:11.002 races | -4.04% |
| Lauren Phillips | 2022 | 25:36.003 races | 24:36.001 race | -3.91% |
| Feifei Cao | 2024 | 29:38.001 race | 28:38.002 races | -3.37% |
| Nicolas Huaco | 2022 | 18:30.001 race | 17:55.001 race | -3.15% |
| Adyson Duval | 2023 | 24:55.001 race | 24:09.002 races | -3.08% |
| Anouk Shin | 2024 | 29:36.001 race | 28:43.002 races | -2.98% |
| Nick Doan | 2019 | 20:41.004 races | 20:05.001 race | -2.90% |
| Camryn Flessel | 2021 | 22:49.002 races | 22:11.001 race | -2.78% |
| Hei Tung (Joanna) Ng | 2024 | 25:34.001 race | 24:53.002 races | -2.67% |
| Sita Warner | 2024 | 25:31.001 race | 24:52.002 races | -2.55% |
| Coco Liu | 2021 | 29:25.002 races | 28:42.001 race | -2.44% |
| Bobby Ferguson | 2025 | 23:44.001 race | 23:09.991 race | -2.39% |
| James McCarron III | 2021 | 17:34.002 races | 17:09.001 race | -2.37% |
| Bradley Weldon | 2022 | 20:24.001 race | 19:55.001 race | -2.37% |
| Nathalie Pierpont | 2021 | 26:47.001 race | 26:10.001 race | -2.30% |
| Lindsey Bennett | 2022 | 25:33.001 race | 24:58.001 race | -2.28% |
| Cate Devaney | 2022 | 25:32.001 race | 24:58.001 race | -2.22% |
| Isaiah Raore | 2024 | 21:00.001 race | 20:33.002 races | -2.14% |
| Mae Lial | 2021 | 25:43.002 races | 25:10.001 race | -2.14% |
| Jonathan Cajamarca | 2019 | 20:50.004 races | 20:24.001 race | -2.08% |
| Luke Peabody | 2022 | 19:14.001 race | 18:50.001 race | -2.08% |
| Drake Tarlow | 2023 | 21:21.001 race | 20:55.002 races | -2.03% |
| Kamran Bradley | 2023 | 23:07.001 race | 22:40.002 races | -1.95% |
| Patrick Fennell | 2025 | 21:56.001 race | 21:30.461 race | -1.94% |
| Lilly Maki | 2022 | 29:36.001 race | 29:02.001 race | -1.91% |
| Alice Wang | 2024 | 28:41.001 race | 28:09.002 races | -1.86% |
| Ava Marinaro | 2023 | 29:06.001 race | 28:36.002 races | -1.72% |
| Lucas Lu | 2021 | 22:41.002 races | 22:19.001 race | -1.62% |
| Jamie Eslick | 2024 | 22:47.001 race | 22:25.001 race | -1.61% |
| Richie Joyce | 2025 | 24:08.001 race | 23:45.781 race | -1.53% |
| James McCarron III | 2022 | 17:26.003 races | 17:12.001 race | -1.34% |
| Eric Liu | 2024 | 20:27.001 race | 20:12.002 races | -1.22% |
| Phoebe Cogan | 2023 | 21:59.001 race | 21:43.002 races | -1.21% |
| Forrester Clark | 2023 | 18:16.001 race | 18:03.001 race | -1.19% |
| Lizzie Cochran | 2022 | 25:26.001 race | 25:08.001 race | -1.18% |
| Lila Jette | 2022 | 22:51.003 races | 22:37.001 race | -1.02% |
| Alyssa McGuirl | 2022 | 31:40.001 race | 31:21.001 race | -1.00% |
| Lily Makepeace | 2024 | 24:23.001 race | 24:09.002 races | -0.96% |
| Lauren Phillips | 2021 | 24:57.002 races | 24:44.001 race | -0.87% |
| Grace Pilkington | 2023 | 28:56.001 race | 28:43.001 race | -0.75% |
| Anthony Marcucci | 2025 | 24:09.001 race | 23:58.311 race | -0.74% |
| Katherine Clovis | 2022 | 25:26.003 races | 25:15.001 race | -0.72% |
| Ryan Noreke | 2022 | 21:04.001 race | 20:55.001 race | -0.71% |
| James (JJ) Oldershaw | 2021 | 19:36.002 races | 19:29.001 race | -0.60% |
| Allen Zheng | 2024 | 22:36.001 race | 22:28.001 race | -0.59% |
| Grace Tatirosian | 2019 | 23:26.003 races | 23:18.001 race | -0.57% |
| Samson Oblak | 2023 | 22:51.001 race | 22:45.001 race | -0.44% |
| Jg Hill-Edgar | 2019 | 19:28.004 races | 19:25.001 race | -0.26% |
| Luke Peabody | 2024 | 19:46.001 race | 19:44.001 race | -0.17% |
| Jonathan Cajamarca | 2021 | 20:16.001 race | 20:14.001 race | -0.16% |
| James (JJ) Oldershaw | 2022 | 19:39.003 races | 19:38.001 race | -0.08% |
| Bennett Walker | 2022 | 24:37.002 races | 24:36.001 race | -0.07% |
| Collette Noordzij | 2022 | 24:30.002 races | 24:30.001 race | 0.00% |
| Ellie Gable | 2022 | 24:33.001 race | 24:33.001 race | 0.00% |
| Caroline Locke | 2019 | 26:10.001 race | 26:11.001 race | +0.06% |
| Condy Bao | 2024 | 23:44.001 race | 23:46.001 race | +0.14% |
| Braeden Moitoso | 2021 | 20:18.001 race | 20:20.001 race | +0.16% |
| Brandon Christ | 2021 | 19:52.001 race | 19:54.001 race | +0.17% |
| Liliana Froehner | 2019 | 22:06.003 races | 22:09.001 race | +0.23% |
| Juliana Di Napoli | 2019 | 28:03.003 races | 28:07.001 race | +0.24% |
| Skye Connell | 2021 | 23:23.002 races | 23:27.001 race | +0.29% |
| Meredith Broadus | 2019 | 28:00.003 races | 28:06.001 race | +0.36% |
| Leo Charlamb | 2023 | 27:40.001 race | 27:46.002 races | +0.36% |
| Machias Poreda | 2024 | 22:58.001 race | 23:03.002 races | +0.36% |
| Jack Halloran | 2025 | 18:14.001 race | 18:18.271 race | +0.39% |
| Ella Richards | 2022 | 24:20.001 race | 24:26.001 race | +0.41% |
| Nicolas Huaco | 2024 | 17:59.001 race | 18:04.002 races | +0.46% |
| Cooper Wang | 2024 | 28:15.001 race | 28:24.002 races | +0.53% |
| Henry Welch | 2019 | 19:13.004 races | 19:20.001 race | +0.61% |
| Lily Davis | 2024 | 22:43.001 race | 22:52.002 races | +0.66% |
| Arden Sartori | 2023 | 24:56.001 race | 25:06.002 races | +0.67% |
| Sophia Deng | 2019 | 27:21.001 race | 27:33.001 race | +0.73% |
| Amaro Castillo | 2024 | 17:52.001 race | 18:00.001 race | +0.75% |
| Maya Daly | 2019 | 25:44.003 races | 25:59.001 race | +0.97% |
| Charlotte Maturo | 2019 | 27:02.001 race | 27:20.001 race | +1.11% |
| William Wilson | 2019 | 19:15.004 races | 19:28.001 race | +1.13% |
| Jasmine Kennedy | 2022 | 21:51.002 races | 22:06.001 race | +1.14% |
| Kate Pickford | 2022 | 21:48.003 races | 22:03.001 race | +1.15% |
| Clara Williams | 2022 | 29:03.003 races | 29:23.001 race | +1.15% |
| Jonathan Cajamarca | 2022 | 20:05.003 races | 20:20.001 race | +1.24% |
| Megan Corry | 2022 | 27:40.001 race | 28:01.001 race | +1.27% |
| Lilley Fiedler | 2022 | 29:14.002 races | 29:38.001 race | +1.37% |
| Mae Lial | 2022 | 24:45.002 races | 25:07.001 race | +1.48% |
| Benjamin Hebbel | 2024 | 17:03.001 race | 17:19.002 races | +1.56% |
| Sophia Wu | 2019 | 24:14.001 race | 24:37.001 race | +1.58% |
| Tatum Glynn | 2023 | 25:10.001 race | 25:34.002 races | +1.59% |
| Parker Lial | 2022 | 24:05.002 races | 24:29.001 race | +1.66% |
| Ashley Sink | 2022 | 22:49.001 race | 23:12.001 race | +1.68% |
| Gabriela Alfaro Pitman | 2019 | 24:19.002 races | 24:44.001 race | +1.71% |
| Eben Dooling | 2023 | 22:09.001 race | 22:33.002 races | +1.81% |
| Lorenzo Johnson | 2023 | 20:12.001 race | 20:34.001 race | +1.82% |
| Jasmine Kennedy | 2019 | 23:13.003 races | 23:42.001 race | +2.08% |
| Skye Connell | 2022 | 23:38.003 races | 24:08.001 race | +2.12% |
| Coco Liu | 2022 | 28:18.002 races | 28:54.001 race | +2.12% |
| Yiran Hu | 2024 | 23:15.001 race | 23:45.002 races | +2.15% |
| Campbell Strong | 2024 | 24:44.001 race | 25:16.002 races | +2.16% |
| Tommy Bi | 2022 | 22:15.001 race | 22:44.001 race | +2.17% |
| Zuriel Jimenez | 2019 | 27:12.003 races | 27:48.001 race | +2.21% |
| Madeline Pike | 2022 | 23:53.001 race | 24:25.001 race | +2.23% |
| Evan Schneider | 2022 | 21:54.001 race | 22:24.001 race | +2.28% |
| Charlie Sorenson | 2019 | 19:15.003 races | 19:42.001 race | +2.34% |
| Brooke Hansen | 2022 | 23:23.001 race | 23:56.001 race | +2.35% |
| Sebastian Culleton | 2025 | 18:34.001 race | 19:00.491 race | +2.38% |
| Dhruva Tailam | 2023 | 24:29.001 race | 25:06.002 races | +2.52% |
| Ana Lial | 2019 | 22:51.001 race | 23:26.001 race | +2.55% |
| Aisling O'Connell | 2019 | 23:00.001 race | 23:36.001 race | +2.61% |
| Jaden Smith | 2022 | 19:30.001 race | 20:02.001 race | +2.74% |
| Luke Roosa | 2019 | 19:24.004 races | 19:56.001 race | +2.75% |
| John Joyce | 2025 | 16:56.001 race | 17:24.171 race | +2.77% |
| Thaxton Frey | 2024 | 21:05.001 race | 21:41.002 races | +2.85% |
| Henry Bowman | 2025 | 21:30.001 race | 22:08.121 race | +2.96% |
| Wren Fortunoff | 2019 | 21:48.001 race | 22:27.001 race | +2.98% |
| R. Zhao | 2025 | 23:59.001 race | 24:42.001 race | +2.99% |
| Jake Devries | 2022 | 23:27.001 race | 24:10.001 race | +3.06% |
| Derek Chang | 2019 | 18:26.001 race | 19:01.001 race | +3.16% |
| Zoe Petrovas | 2019 | 22:30.002 races | 23:13.001 race | +3.19% |
| Henry Wang | 2024 | 19:55.001 race | 20:34.002 races | +3.26% |
| Conor Mannion | 2022 | 22:10.001 race | 22:55.001 race | +3.38% |
| Phoebe Lynch | 2019 | 28:35.001 race | 29:35.001 race | +3.50% |
| Aidan Berger | 2021 | 20:17.001 race | 21:01.001 race | +3.62% |
| Matthew Smith | 2021 | 21:46.001 race | 22:34.001 race | +3.68% |
| Brendan Brosnan | 2022 | 20:48.001 race | 21:34.001 race | +3.69% |
| Sophia Hansen | 2022 | 22:26.001 race | 23:18.001 race | +3.86% |
| Brianna Zhang | 2019 | 23:24.001 race | 24:19.001 race | +3.92% |
| Amy Ma | 2019 | 26:03.001 race | 27:05.001 race | +3.97% |
| Yeabsira Gugssa | 2019 | 26:50.001 race | 27:57.001 race | +4.16% |
| Brianna Boucher | 2022 | 22:46.002 races | 23:43.001 race | +4.17% |
| Luke Driscoll | 2022 | 20:25.001 race | 21:17.001 race | +4.24% |
| Seif El Gazaar | 2024 | 19:10.001 race | 20:03.001 race | +4.61% |
| Cormac Anderson | 2025 | 21:18.001 race | 22:17.131 race | +4.63% |
| Oscar King | 2019 | 20:07.004 races | 21:04.001 race | +4.72% |
| Luciana Castillo Barcena | 2024 | 25:21.001 race | 26:34.002 races | +4.80% |
| Sophie Chatfield | 2025 | 28:43.001 race | 30:06.001 race | +4.82% |
| Sophia Petrovas | 2019 | 23:25.003 races | 24:33.001 race | +4.84% |
| Merrick Brannigan | 2022 | 23:50.001 race | 25:00.001 race | +4.90% |
| Cara Chang | 2019 | 24:00.001 race | 25:12.001 race | +5.00% |
| Katalin (Kata) Clark | 2023 | 19:53.001 race | 20:55.001 race | +5.20% |
| Alejandro Gavilanes | 2025 | 19:25.001 race | 20:27.001 race | +5.32% |
| Lucy Anderson | 2019 | 26:46.001 race | 28:12.001 race | +5.35% |
| Alexa Adams | 2022 | 25:17.001 race | 26:40.001 race | +5.47% |
| Lang Burgess | 2019 | 28:02.001 race | 29:37.001 race | +5.65% |
| Winnie Hatch | 2025 | 33:29.001 race | 35:25.001 race | +5.77% |
| Merrick Brannigan | 2025 | 24:30.001 race | 25:55.001 race | +5.78% |
| D. Chen | 2025 | 21:13.002 races | 22:27.001 race | +5.81% |
| Jurnee Poulson | 2025 | 28:48.002 races | 30:31.001 race | +5.96% |
| Vivan Das | 2019 | 20:05.001 race | 21:17.001 race | +5.98% |
| Merrick Brannigan | 2024 | 22:30.001 race | 23:52.002 races | +6.07% |
| Sebastian Briggs | 2024 | 22:11.001 race | 23:32.002 races | +6.09% |
| John Brice | 2022 | 22:26.001 race | 23:48.001 race | +6.09% |
| Natalie Meleo | 2024 | 25:00.001 race | 26:34.002 races | +6.27% |
| Joshua Guo | 2019 | 19:08.001 race | 20:21.001 race | +6.36% |
| Ryder Cavanagh | 2019 | 18:46.001 race | 19:58.001 race | +6.39% |
| Grant Vensel | 2022 | 20:56.002 races | 22:17.001 race | +6.45% |
| Lily Makepeace | 2025 | 24:19.002 races | 25:56.001 race | +6.65% |
| Lawrence Li | 2019 | 19:41.001 race | 21:01.001 race | +6.77% |
| Sarah Hastings | 2019 | 28:04.001 race | 30:00.001 race | +6.89% |
| Katie Wipf | 2022 | 21:53.001 race | 23:24.001 race | +6.93% |
| Amy Sharma | 2019 | 20:45.001 race | 22:14.001 race | +7.15% |
| Katie Reveno | 2019 | 23:04.001 race | 24:45.001 race | +7.30% |
| Natalie Meleo | 2025 | 21:54.002 races | 23:32.001 race | +7.46% |
| Amaro Castillo | 2025 | 18:04.002 races | 19:25.001 race | +7.47% |
| Stanislas Robert | 2019 | 18:44.001 race | 20:11.001 race | +7.74% |
| Emily Bunn | 2022 | 22:31.001 race | 24:18.001 race | +7.92% |
| Andrew Mazza | 2019 | 18:30.001 race | 19:58.001 race | +7.93% |
| Adaline (Addy) Zhang | 2024 | 29:48.001 race | 32:13.001 race | +8.11% |
| Aidan Pearsall | 2025 | 17:47.002 races | 19:25.001 race | +9.18% |
| Kenzie Murphy | 2022 | 21:41.001 race | 23:41.001 race | +9.22% |
| Henry Becker | 2025 | 22:38.002 races | 24:53.001 race | +9.94% |
| Campbell Strong | 2025 | 25:56.002 races | 28:31.001 race | +9.96% |
| Lily Oh | 2024 | 29:57.001 race | 33:25.002 races | +11.57% |
| Grace Daoust | 2025 | 25:35.002 races | 28:34.001 race | +11.66% |
| Elizabeth Girian | 2019 | 26:30.001 race | 29:36.001 race | +11.70% |
| Rileigh Murphy-Morris | 2022 | 25:32.001 race | 28:33.001 race | +11.81% |
| Noah Bay | 2019 | 19:12.001 race | 21:31.001 race | +12.07% |
| Eric Liu | 2025 | 19:44.002 races | 22:10.001 race | +12.33% |
| Charles Jackivicz | 2025 | 17:31.002 races | 19:48.001 race | +13.04% |
| Christina Chen | 2019 | 24:25.001 race | 27:48.001 race | +13.86% |
| Connor Bragg | 2025 | 22:44.001 race | 28:02.001 race | +23.31% |