Event: MCA Division 1

Opponent Rating Result
Marek Korsinskij 1953 0 - 1
Artur Hrabchak 1570 0 - 1
Anthony J Roberts 1701 ½ - ½
Callum Hayden 1533 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1489 = (6757 + 400 * (0 - 2)) / 4)

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