Event: Examiner League

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Opponent Rating Result
Robert Oldfield 1555 ½ - ½
Jake Howard 1498 0 - 1
Bryn W Charlesworth 1517 ½ - ½
Peter G Moss 1565 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1434 = (6135 + 400 * (0 - 1)) / 4)

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