Event: Holmfirth Junior Rapid

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Opponent	Rating	Result
Awen Gitay	1191	0 - 1
Harry Stainton	921	1 - 0
Sam Hough	1093	0 - 1

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

935 = (3205 + 400 * (1 - 2)) / 3)