Peace Rules (bred and foaled in Florida at Newchance Farm on April 26, 2000), is a multiple Grade I-winning American Thoroughbred race horse.
Overshadowed in Frankel's barn by Empire Maker, Frankel's pick to win that year's Derby, Peace Rules had won the Grade II Louisiana Derby, beating Funny Cide (second after a late rally), before Empire Maker won a single stakes race.
Both of Frankel's Derby entries were beaten by the longshot Funny Cide, but Peace Rules led for over a mile and held on for third place and a check for $110,000.
Scrimshaw pressed Peace Rules, forcing a quickened pace as Funny Cide and Cherokee's Boy sat a few lengths back going into the club-house turn.
In the summer months of his sophomore campaign, Peace Rules won the grade one Haskell Invitational Handicap, beating Sky Mesa and Funny Cide at Monmouth Park during the first week of August.