Event: Division 4

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Opponent Rating Result
Matthew Perchard 1544 0 - 1
Cindy Gilbertson 1578 1 - 0
Tim Wells 1702 0 - 1
Evan Beachley 1641 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1416 = (6465 + 400 * (1 - 3)) / 4)

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