I cannot find an explanation to when does the daily off-peak cap apply. I have a National Railcard discount, meaning my daily off-peak cap in £5.10 (I commute between zones 1 and 2). Originally I expected that if all journey are off-peak, off-peak cap applies. If one of the trips if peak, then anytime peak applies. From my experience, even if one journey is taken in peak hours, the cap is off-peak (regardless if my first journey of the day is peak or off-peak).
Does that mean I can fit in 2 peak trips and one off-peak and still get an off-peak cap?