IMPROMPTU f. 1939
CONCERTO (---) - THOUGHTLESS (---), by

IMPRUDENT LARK (BRZ) c. 1981
TUMBLE LARK (USA) - PRUDENT (ARG), by DANCING MOSS (BRZ)

IMPULSE (BRZ) f. 2003
TREMPOLINO (USA) - BARCY (IRE), by ARAZI (USA)

IMSODEAR (USA) f. 1967
CHIEFTAIN (USA) - IRONICALLY (USA), by INTENT (USA)

IN CHARMING (BRZ) f. 1993
JET SELLER (ARG) - TYRINA (BRZ), by TUYUTI (ARG)

IN COMMAND (BRZ) f. 0000
MARCH PAST (BRZ) - BOUDICCA (BRZ), by COMBAT (---)

IN GLORY c. 2003
POTRILLON (ARG) - ASSYRIE (ARG), by ALLEGED (USA)

IN HEAVEN (ARG) c. 2003
ROY (USA) - PACATYBA (BRZ), by ITAJARA (BRZ)

IN HOT PURSUIT (USA) f. 1971
BOLD RULER (USA) - LADY BE GOOD (USA), by BETTER SELF (USA)

IN MY HEART (BRZ) c. 2003
KNOW HEIGHTS (IRE) - UYBA (GB), by ITAJARA (BRZ)