Event: NSDCA Division 3

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Opponent	Rating	Result
Charlie G Swinson	1448	0 - 1
Martyn Stanley	1230	0 - 1
Charlie G Swinson	1448	0 - 1
Jay Holt	1000	1 - 0
Finley Thomas	900	1 - 0
Zak Frederick Fenton	1200	1 - 0
Nigel Gardner	1558	1 - 0
Christopher Brian	1224	0 - 1

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

1251 = (10008 + 400 * (4 - 4)) / 8)