Event: Division 2

Opponent Rating Result
David I Tipper 1766 ½ - ½
Alex Whelan 1678 0 - 1
Lawrence Wilmshurst 1513 0 - 1
Llewellyn Forward 1660 1 - 0
Joaquim Luque 1615 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1486 = (8232 + 400 * (1 - 3)) / 5)

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