Event: SCCU Under 14 / U1700 league

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Opponent	Rating	Result
Ethan Bogerd	998	1 - 0
Oscar Frydman-Orsteen	1226	1 - 0

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

1512 = (2224 + 400 * (2 - 0)) / 2)