Event: Division 1

PDF Excel

Opponent	Rating	Result
R Alan Barton	178	½ - ½
Geoffrey H James	177	0 - 1
Adrian O Pickersgill	170	½ - ½
Nicholas H Skinner	153	½ - ½
David B Graham	208	0 - 1
Peter Larwood	165	½ - ½
Lucy Bennet-Stevens	165	0 - 1
Anthony RJ Higgs	181	½ - ½

performance = (sum(opponents ratings) + 400(wins-losses)) / games

25 = (1397 + 400 * (0 - 3)) / 8)