The ‘A’ Race is the cornerstone of an athlete’s annual calendar, representing the primary objective for which all other training and preparation are designed. Within the framework of an Annual Training Plan (ATP), the ‘A’ Race is the “summit” event—often a World Championship like Ironman in Kona, the UTMB, Unbound Gravel, or a proprietary pinnacle challenge like an athlete’s first Marathon, 100 mile century Gran Fondo, or even Vegas In 24—where peak physiological and psychological performance is required. Because the human body can only sustain a true peak for a narrow window of time, an athlete typically designates only one or two A Races per year. These events dictate the entire structure of the season, requiring a meticulous approach to periodization to ensure that the engine is primed for maximum cardiac yield exactly when the starting gun fires.
The journey toward an ‘A’ Race is organized into distinct training blocks, each serving a specific role in the evolution of the athlete’s fitness. In a standard periodization format, it begins with the Base Phase, where the focus is on building a robust aerobic foundation and structural durability through high-volume, lower-intensity efforts. As the event approaches, the athlete transitions into the Build Phase, where intensity increases and workouts become more specific to the demands of the race—incorporating intervals at threshold and sustained power sets. Finally, the Peak Phase (or Taper) involves a strategic reduction in volume while maintaining intensity, allowing the body to shed accumulated fatigue and “supercompensate,” resulting in the sharpest possible performance on race day.
To support this peak, athletes utilize B and C Races as developmental milestones throughout the season. A ‘B’ Race is a high-priority event used as a “dress rehearsal” to test nutrition strategies, pacing, and equipment under race-day pressure, usually preceded by a short, 3-to-5-day mini-taper. A ‘C’ Race, conversely, is treated purely as a high-intensity workout or a “training through” event, where the athlete competes with no taper at all, focusing on technical skills and “racing into shape” without the pressure of a specific result. By categorizing events in this hierarchy, an athlete avoids the trap of “racing too much” and ensures that every mile logged in the Base and Build blocks is a direct investment in the success of the ‘A’ Race.

