Event: Anstey Junior Club Championship Rapidplay

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Opponent	Rating	Result
Hayden Padgett	775	½ - ½
Noor Datoo	1411	0 - 1
Jaan Sebastian	600	½ - ½
Jakub Miler	1148	0 - 1
Seth Jehu	600	1 - 0

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

827 = (4534 + 400 * (1 - 2)) / 5)