Championships are on the line in three Grade 1 Quarter Horse stakes closing weekend at Los Alamitos.
On Friday night, the top two qualifiers in the Grade 1, $154,350 Southern California Derby are trained by by Donna McArthur.
On Saturday, trainer John Bassett will have four juveniles in the Grade 1, $1,256,000 Los Alamitos Million, Quarter Horse racing's second-richest race.
On Sunday, the 2001 world championship will be on the line in the Grade 1, $500,000 Champion of Champions, the sport's most prestigious and richest race for older runners.