Races and events: priorities, tapering and periodization
Written By Martijn Russchen
Last updated 11 days ago
A, B and C events
Event priority determines how the AI structures your training:
A Events β your most important goals, where you want peak fitness. Pick 1β2 per year, at least 12 weeks apart. The AI builds a full periodization plan (Base β Build β Peak β Taper β Race) with a 3-week taper.
B Events β important races where you want to perform well but not necessarily peak. Great for testing tactics, nutrition, and pacing. You get a 1-week mini-taper with reduced volume plus opener workouts the day before.
C Events β practice/fun races you train through; they hold similar value to a key hard workout. No taper. The AI removes the scheduled workout that day but treats the event itself as training.
Multiple goals
Add multiple events in Intervals.icu marked A/B/C. The AI considers all of them when planning phases and tapers.
An event I didnβt create appeared
IntervalCoach reads your goals straight from your Intervals.icu calendar, so any event there is treated as a real goal. If another platform writes events into the same calendar, IntervalCoach plans around them too. Athletica, for example, can create a synthetic A-priority race (such as βTrain to Maintainβ) with a real date even when you only asked it to build general fitness, and once that lands in Intervals.icu, IntervalCoach builds a full Peak/Taper/Race block around it.
If you ever see a taper or race structure you did not ask for, check your Intervals.icu calendar for an event you did not add. Delete it, or drop it to C priority, then regenerate your plan and the structure relaxes.
Multi-day events (stage races, tours)
Detected automatically two ways: a single calendar event spanning multiple days, or consecutive same-name events (e.g. "Tour de Wallonie - Stage 1/2"). Once detected, Race Week extends across the whole event, taper timing is based on the first stage, CTL targets are raised 15β25% for cumulative fatigue, and the post-event email arrives after the last stage.
Tapering
A events get a full 3-week taper (volume down, intensity maintained) for peak freshness. B events get a 1-week mini-taper plus openers. C events get no taper. For multi-day events the taper happens before the first stage and the plan stays in Race Week throughout.
Periodization
The AI structures training in phases based on time to your goal β early phases build aerobic base, middle phases add intensity and specificity, final phases sharpen before tapering. Training-goal templates use goal-specific phase models.
Cycling disciplines (road, MTB, gravel)
Currently IntervalCoach treats all cycling as a single sport type β workouts aren't optimized specifically for MTB or gravel. When you set a goal event, the AI analyzes the event type (endurance, racing, gran fondo, etc.) to adjust target fitness.