3.1.4 Wish You Were Here. But now You Are Gray.

If a player does not play in a tournament, he is grayed out in the related column in rating table.

E.g., Vincent de Boer did not play in Essen and he did not play in one of the Kiev tournaments either. André Pols played in N˙mwegen, which is hard to recognize by the background color, because it is almost gray.