Event: Division 1

Opponent Rating Result
Stanley Badacsonyi 2414 0 - 1
Alan H Perkins 2152 ½ - ½
Thomas E Rendle 2446 ½ - ½
Richard A Bates 2359 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2143 = (9371 + 400 * (0 - 2)) / 4)

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