Event: Rye Trophy

Opponent Rating Result
Harry Graham 1749 ½ - ½
Thomas Annison 1574 ½ - ½
Harvey W Collins 1522 0 - 1
William F O'Connor 1249 1 - 0
Trevor J Ansell 1903 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1519 = (7997 + 400 * (1 - 2)) / 5)

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