Event: Leyland Juniors vs Wigan Juniors Friendly

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Opponent	Rating	Result
Ethan Hurst	1508	0 - 1
Ethan Hurst	1508	1 - 0

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

1508 = (3016 + 400 * (1 - 1)) / 2)