As every schoolboy knows, the game of Broadsides originated in the bedrooms of Eton. The inventor's name and the date of invention are both sadly lost to history, but school disciplinary records include references to the game as far back as 1820.
The term 'Eton Broadsides' refers to a particular set of rules for the game, which differ from the standard IFBP rules in that extra points may be scored by shots that hit specified parts of the court ('bedposts'). They are not widely played outside Eton (and a select few other English public schools) since they require a court built to exacting specifications.
His background in Eton Broadsides lets him approach shots from a completely different angle, making him a formidable opponent.