Event: Division 1

Opponent Rating Result
Roy D Page 1965 ½ - ½
Russell G Granat 2241 0 - 1
Callum D Brewer 2238 1 - 0
David W Fryer 1975 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2205 = (8419 + 400 * (2 - 1)) / 4)

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