Event: NCCA League Division 3

Opponent Rating Result
Carl Purkiss 1557 ½ - ½
Mark A Nettleton 1490 0 - 1
Stephen F Crane 1474 1 - 0
Folkert Schoustra 1626 0 - 1
Mark Philip Baldock 1466 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1443 = (7613 + 400 * (1 - 2)) / 5)

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