Event: Cornwall League 2023

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Opponent	Rating	Result
Ian Renshaw	1420	1 - 0
John DM Nunn	2593	0 - 1
Gary Trudeau	1717	1 - 0

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

2043 = (5730 + 400 * (2 - 1)) / 3)