
Geneseo, United States of America · Sunday 6 September 2026
The Oak Tree is run annually on the Sunday of Labor Day weekend in beautiful historic Geneseo, NY. Complete race details and online registration: https://oaktreerace.org USATF Niagara Association 5km Championships: The Oak Tree 5km will serve as the 2026 USATF Niagara Open and Masters 5km Championships. The race will also be part of the 2026 USATF Niagara Runner Of The Year Series and Team Grand Prix Series.
Adjusted Time
1:40:47
Time difference: -4.2 minutes compared to a flat, road, temperate course.
Oak Tree Half Marathon & 5K Run/Walk is a half marathon held in Geneseo, United States of America, scheduled for Sunday 6 September 2026. The course is run on road surface with 0m of total elevation gain, reaching a maximum altitude of 0m above sea level. For registration and full race details, visit the official Oak Tree Half Marathon & 5K Run/Walk website.
This is a very flat course with only 0m of total elevation gain across the full distance. The course ranges from 0m to 0m above sea level — a 0m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.
Oak Tree Half Marathon & 5K Run/Walk is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.
Our difficulty rating for Oak Tree Half Marathon & 5K Run/Walk is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based half marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare Oak Tree Half Marathon & 5K Run/Walk against other half marathons to find the right race for your goals.
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