Event: Club Championship Gold Section

Opponent Rating Result
Henry Leather 1730 ½ - ½
Antony C Hall 1956 ½ - ½
David J Payne 1711 1 - 0
Hazel Bowler 1802 ½ - ½
Geoffrey R Moore 2098 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2019 = (9297 + 400 * (2 - 0)) / 5)

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