It;s been a long time but I'm almost sure i have gotten 16-0 in a match or two. Once I got in the swing of blitzball it became SUPER easy.
Against the Ronsos are probably the easiest to score against, that with a mix of sleep shot and datto's (i think its him or botta) high speed or tidus' monster shoot stat make it super easy.
Easy stratagy when playing ronsos. If you get the ball pass to Datto, swim around quickly away from blocking ronsos, move right into the gaol and use sleep shot. If the ball goes in score if not goalie goes to sleep. Repeat until goalie goes to sleep. then just keep shooting in as fast as you can on any next play from far when goalie is asleep or close when not. If the other team starts with the ball it's not much different just some time is lost to get it back, have strong defence men (i had Kyou and Jassu) sleep anything is always a big help.
Alternitively just keep passing to tidus and Jecht shot it in if you have people blocking you or sphere shot if the goalie has really high catch. Always shoot close to the goal if Tidus isn't a cannon shot yet.
Seriously after awhile my normal score was around 10-0 and could get way higher depending on the opposing team and luck of catching the toss off
Edit: after thinking about it, it may have not been 16-0 but I have most definitely gotten a 14-0 game before.
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