Event: Division 2

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Opponent	Rating	Result
Alexander Roberts	0	0 - 1
Christopher Taylor	0	1 - 0
Oliver Stevens-Vallecillo	1342	½ - ½
Luke Howard	0	½ - ½
Alex Harrison	0	½ - ½
Ruben Wilberg	0	0 - 1
Oliver Stevens-Vallecillo	0	½ - ½
Max Wrigley	0	½ - ½

performance = (sum(opponents ratings) + 400(wins-losses)) / games

118 = (1342 + 400 * (1 - 2)) / 8)