Event: 4-Board Division 2

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Opponent	Rating	Result
Thomas L Hackett	1778	0 - 1
Richard O Callis	1684	0 - 1
Bruce R Oliver	1629	1 - 0

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

1564 = (5091 + 400 * (1 - 2)) / 3)