Event: Championship 2023-4

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Opponent	Rating	Result
Ben Borthwick	1487
Paul Castledine	1538	1 - 0
Philip Eastlake	1786	1 - 0
George J Ellames	1880
Charles Greer	1485
Vincent Tangney	0
Andrew Hardy	1467
Karl Isaac	1311
Darren McCarthy	0
Stephen O’Neill	1547	½ - ½
Daniel Birt	0

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

1890 = (4871 + 400 * (2 - 0)) / 3)