Responses
I guess it can get confusing, but usually there's something more when showing a flashback, similar to when a dream is shown (like when the purple haired guy would fall asleep and wake up to a dream inside a dream). If there is 0 lead up, it's most likely just time passing by quickly, like to get through that period of practice before the big game.
Is just me? When they skip to a next setting so suddenly I have to wonder if those next panels are a flashback or a dream. Like when they were on the bus and he was asking him who he loves then the story just suddenly jump to the school's sports day without finishing the day or any leading up (°ε°)