She won a minor event at Leopardstown Racecourse in August and was then moved up sharply in class for the Group One Moyglare Stud Stakes at the Curragh in the following month.
[6] On her four-year-old debut in May, Committed finished second to the British-trained three-year-old Reesh in the Group Three Greenlands Stakes at the Curragh, beaten half a length after making up a great deal of ground in the final furlong.
[7] In June Committed was raced outside Ireland for the first time when she was sent to Royal Ascot to contest the Cork and Orrery Stakes in which she was ridden by the Australian Brent Thomson and started the 3/1 favourite against fourteen opponents.
She had little luck in the race, failing to obtain a clear run until the closing stages and finishing fourth behind Petong, Never So Bold and Habibti.
Committed's last race of 1984 was the Group One Prix de l'Abbaye over 1000 metres at Longchamp Racecourse in October in which she was ridden by the American jockey Steve Cauthen.
At Deauville Racecourse in August she sustained a third consecutive defeat when caught in the last strides and beaten a neck by Spectacular Joke in the Prix Maurice de Gheest over 1300m.
The mare returned to winning form in the Swordlestown Stud Stakes at the Phoenix Park but raced lazily and was unimpressive in beating three moderate opponents.
[8] Rather than travel to England for the Sprint Cup (won by Sangster's colt Orojoya), Committed remained in Ireland and was an easy winner of the inaugural running of the Flying Five Stakes at Phoenix Park.
Racing on fast ground, Committed took the lead 200m from the finish and held off several challenges to win by a head from Robert Sangter's French-trained filly Vilikaia, with Never So Bold in fourth.
[9] The Abbaye was Committed's last race in Europe: in November she was sent to the United States for the second running of the Breeders' Cup Sprint on dirt at Aqueduct Racetrack.
Ridden by Steve Cauthen, she reached fourth place in the straight, but faded in the closing stages and finished seventh behind Precisionist.
She recorded her first North American win in December when she won the Matching Handicap over six furlongs on turf at Hollywood Park Racetrack.