There are several golf resorts in Madrid, so perhaps you can plan something for him. There is also a large F1 circuit (Circuito del Jarama) which runs races on Sundays (usually).
And there are lots of other things to do: shopping, walking around, going to have tapas, teather, expositions... even if he find museums boring, El Prado Museum is very impressive (as well as Reina Sofía Museum and Thyssen-Bornemiza Museum).
As for english, about 40% of Madrid's citizens speak (or at least can understand) english (this is higher than in Spain in general). In touristy places (hotels, museums,...) it is very very probable to find someone who will speak english perfectly.
Try to search this BBS and asking people if you need ideas of what you may do while in Madrid
Fernando