Event: Weymouth U2200 2023

Opponent Rating Result
Spencer Lawrence 1799 1 - 0
Mark Littleton 2017 ½ - ½
Allan J Pleasants 2105 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2107 = (5921 + 400 * (1 - 0)) / 3)

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