Event: Durham League Division B

Opponent Rating Result
George Topping 1767 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1367 = (1767 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
Philip Brooks 1581 0 - 1
Stephen J Hall 1813 1 - 0
Nathan Ekanem 1959 0 - 1
Thomas Finn 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1338 = (5353 + 400 * (2 - 2)) / 4)