Event: 2021 Jamboree

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Opponent	Rating	Result
Andrew F Footner	2065	½ - ½
David Stone	0	1 - 0
Tim F Woodward	1788	1 - 0

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

1551 = (3853 + 400 * (2 - 0)) / 3)