Event: Division 3

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Opponent	Rating	Result
Jonathon Gould	1669	½ - ½
Geoffrey D Dring	1570	½ - ½
James Thomas	1476	0 - 1

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

1438 = (4715 + 400 * (0 - 1)) / 3)