Maloof was chosen in the 27th round of the 1971 amateur draft by the Minnesota Twins.
Assigned to the Auburn Twins, he batted .402/.508/.453, stole 14 bases in 16 tries and scored 57 runs in 68 games.
He fielded .986, one point shy of the lead for a New York–Penn League outfielder and also ranked second with 141 putouts, trailing Tony Scott.
Maloof easily won the batting title, 57 points over Mike Cubbage and also led in runs, hits and OBP.
His 52 walks were five shy of league leader.
He was an All-Star selection.
For his accomplishment, Maloof was named the 1971 Topps Minor League Player of the Year and his .402 average that year stands to this day.

Maloof followed up his incredible rookie season hitting .308/.417/.382 for the 1972 Lynchburg Twins.
He led the Carolina League in walks (86) and barely missed the league batting crown by .02, trailing only Dave Parker (.310).
Maloof was third in the league in runs (82) finishing behind Parker and Ed Ott.
He fielded .993 at first base and .979 in the outfield; either would have led the Carolina League players at those positions had he qualified.

In 1973, Maloof was a 1B/OF once more, now with the AA Orlando Twins.
He hit .278/.380/.326 and stole 22 bases in 32 tries while drawing 71 walks.
The next year, he was back in Orlando and fielded .992 at both outfield (he would have led the league had he qualified) and first base.
He produced at a .300/.440/.361 clip, finishing third in the Southern League in average behind only Nyls Nyman and Kim Andrew.
In addition to his 3rd place batting average, he led the league in walks and OBP.

In 1975, Jack was returned to Orlando.
Still only 25, he was a moderate prospect.
That season, he hit .317/.463/.364 and finished second in the Southern League in batting average behind Charles Heil.
He also led the league a second year in a row in both walks (105) and OBP.

Maloof made it to AAA in 1976 but the outlook was bleak – Rod Carew was playing first in Minnesota and Maloof had to split time at first for the Tacoma Twins with Randy Bass, a top slugging prospect.
Jack hit a respectable .281/.435/.355 as a 1B/DH with 94 runs, 15 steals and 116 walks to just 51 strikeouts.
He led the Pacific Coast League in walks and was among the leaders in OBP.

Maloof was traded to the Cincinnati Reds for Art DeFilippis on March 28, 1977.

In 1978, Maloof moved to the San Diego Padres organization with the Hawaii Islanders and batted .310/.434/.405.
He scored 93 runs, stole 25 bases in 30 tries and drew 104 walks.

In his final playing year, Maloof went to Japan in 1979, joining Tony Muser as the new American hitters for the Seibu Lions.
Maloof hit a solid .290/.358/.414, surprisingly only drawing 52 walks while hitting 12 HR's.
He led the Pacific League with 503 at-bats.
Maloof was chosen in the 27th round of the 1971 amateur draft by the Minnesota Twins. Assigned to the Auburn Twins, he batted .402/.508/.453, stole 14 bases in 16 tries and scored 57 runs in 68 games. He fielded .986, one point shy of the lead for a New York–Penn League outfielder and also ranked second with 141 putouts, trailing Tony Scott. Maloof easily won the batting title, 57 points over Mike Cubbage and also led in runs, hits and OBP. His 52 walks were five shy of league leader. He was an All-Star selection. For his accomplishment, Maloof was named the 1971 Topps Minor League Player of the Year and his .402 average that year stands to this day.
Maloof followed up his incredible rookie season hitting .308/.417/.382 for the 1972 Lynchburg Twins. He led the Carolina League in walks (86) and barely missed the league batting crown by .02, trailing only Dave Parker (.310). Maloof was third in the league in runs (82) finishing behind Parker and Ed Ott. He fielded .993 at first base and .979 in the outfield; either would have led the Carolina League players at those positions had he qualified.
In 1973, Maloof was a 1B/OF once more, now with the AA Orlando Twins. He hit .278/.380/.326 and stole 22 bases in 32 tries while drawing 71 walks. The next year, he was back in Orlando and fielded .992 at both outfield (he would have led the league had he qualified) and first base. He produced at a .300/.440/.361 clip, finishing third in the Southern League in average behind only Nyls Nyman and Kim Andrew. In addition to his 3rd place batting average, he led the league in walks and OBP.
In 1975, Jack was returned to Orlando. Still only 25, he was a moderate prospect. That season, he hit .317/.463/.364 and finished second in the Southern League in batting average behind Charles Heil. He also led the league a second year in a row in both walks (105) and OBP.
Maloof made it to AAA in 1976 but the outlook was bleak – Rod Carew was playing first in Minnesota and Maloof had to split time at first for the Tacoma Twins with Randy Bass, a top slugging prospect. Jack hit a respectable .281/.435/.355 as a 1B/DH with 94 runs, 15 steals and 116 walks to just 51 strikeouts. He led the Pacific Coast League in walks and was among the leaders in OBP.
Maloof was traded to the Cincinnati Reds for Art DeFilippis on March 28, 1977.
In 1978, Maloof moved to the San Diego Padres organization with the Hawaii Islanders and batted .310/.434/.405. He scored 93 runs, stole 25 bases in 30 tries and drew 104 walks.
In his final playing year, Maloof went to Japan in 1979, joining Tony Muser as the new American hitters for the Seibu Lions. Maloof hit a solid .290/.358/.414, surprisingly only drawing 52 walks while hitting 12 HR's. He led the Pacific League with 503 at-bats.
Jack Maloof