Intervals.icu automatically detects intervals so you can ride your favourite route, punish the rollers and still get good stats to track your progress. Forgot to hit the lap button? No problem!Visit Intervals.icu
Provides stats for each interval (power, HR, w/kg, torque, cadence, intensity, power zone etc.), time in zones, power histogram, power curve (with season curve) and best power/duration efforts, athlete power page with power curve (for last 42 days, season etc.), FTP estimation, compact calendar view with training load for HR only activities, lots more.