Event: Morpeth Summer Rapidplay

Opponent Rating Result
Alan Welsh 1747 0 - 1
David M Watson 1436 ½ - ½
David M Watson 1436 ½ - ½
Martin Seeber 1725 0 - 1
David M Watson 1425 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1314 = (7769 + 400 * (0 - 3)) / 5)

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