When peter kox roman rusinov is the gt1 of the winning team how many lmp1 winning teams are there?
create table table_19722436_2 (lmp1_winning_team varchar, gt1_winning_team varchar, PRIMARY KEY (lmp1_winning_team))
select count(lmp1_winning_team) from table_19722436_2 where gt1_winning_team = "peter kox roman rusinov"