Event: Holmfirth Pod Chess League

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Opponent	Rating	Result
Steve Harrington	1270	1 - 0
Dave Gray	143	0 - 1
Leo A Keely	182	0 - 1

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

398 = (1595 + 400 * (1 - 2)) / 3)