Hague played for the St. Louis Cardinals and the Cincinnati Reds in his six-year major league career.

Over his minor league career, Hague batted .279 with 515 hits, 109 doubles, 18 triples, and 75 home runs in 510 games.

His first professional team was the Class-A Cedar Rapids Cardinals followed by the Double-A Arkansas Travelers, and eventually the Triple-A Tulsa Oilers.

Hague spent the summer starring with Galesburg in the Central Illinois Collegiate League, and on August 31, 1965, he signed a contract with the St. Louis Cardinals,[6] receiving a bonus in excess of $10,000.

[1] Hague began his professional career in 1966 with the Class-A Cedar Rapids Cardinals of the Midwest League.

[1] With Cedar Rapids, Hague batted .251 with 109 hits, 24 doubles, six triples, and nine home runs in 119 games.

[8] Hague was first in the Texas League in games played, and RBIs; tied for second in home runs; third in doubles, plate appearances, and at-bats; and fourth in hits.

[11] After spending spring training with the Cardinals, Hague was optioned to the Triple-A Tulsa Oilers of the Pacific Coast League.

[13] Hague led the Pacific Coast League in games played, and total bases; was second in RBIs; was tied for second in home runs; and was third in hits, and doubles.

Originally at the start of the 1969 season, it looked as if there would be little chance that Hague would get playing time behind then-first baseman Orlando Cepeda.

During spring training, however, the Cardinal traded Cepeda for catcher Joe Torre and it was noted that Hague might get more playing time in the majors.

Going into the 1970 season, the Cardinals' manager Red Schoendienst stated that he would give the starting first baseman job to Hague.

[23] That season, Hague set career highs in games played, plate appearances, at-bats, runs, hits, doubles, triples, RBIs, stolen bases, walks, strikeouts, batting average, on-base percentage, slugging percentage, and on-base plus slugging.

[28] During the 1972 offseason, the Cardinals were in trade negotiations with the San Diego Padres to get pitcher Dave Roberts in exchange for left fielder Luis Meléndez and shortstop Milt Ramirez.

After the trade from the St. Louis Cardinals, it was noted by the Christian Science Monitor that Hague was expected to be a key in the Reds' success.

Hague played in the 1972 National League Championship Series with the Reds and went hitless in one at-bat and two walks.

[33] Hague was born in Huntington, West Virginia, however, as a child his family moved to El Paso, Texas.