Ultracycling is a form of long-distance cycling that involves riding distances greater than traditional cycling events, often exceeding 100 miles in a single ride. It can take place on various terrains, including roads and trails, and may include races or personal challenges. Participants often ride for extended periods, sometimes for days, with minimal rest. Events in ultracycling can vary widely, from multi-day races like the Race Across America to self-supported rides where cyclists navigate their own routes. Cyclists often rely on their endurance, mental strength, and strategic planning to complete these demanding challenges, making ultracycling a unique and rigorous sport.