The
Oakland Raiders of the
American Football League (AFL) selected Banaszak in the fifth round of the
1966 AFL draft, 59th overall. Banaszak played sparingly for the Raiders in 1966, with only four rushing attempts and occasionally playing special teams. In 1967, he was a reserve running back until the Raiders leading rusher
Clem Daniels suffered a broken ankle against the
Miami Dolphins on November 19. Banaszak started the Raiders remaining five games as a running back that season. In his first start (November 26) against defending AFL champion
Kansas City Chiefs, Banaszak led the Raiders with 81 yards on 13 carries and one rushing touchdown. He also had four receptions for 27 yards. While Raiders head coach
John Rauch believed Banaszak would be a capable replacement, he had no expectation that Banaszak would perform as well as he did. He had 86 rushing yards and 73 receiving yards the following week in a win over the
New York Jets, including a 72-yard reception. He started in the
1967 AFL Championship Game against the Oilers, a 40–7 victory. Banaszak rushed for 116 yards in that game on 15 carries, and had one reception for four yards. He then started in
Super Bowl II against the
Green Bay Packers. The Packers won 33–17. Banaszak rushed for 16 yards on six carries, but had four receptions for 69 yards, including a 40- or 41-yard reception from
Daryle Lamonica. He also had a fumble in the game, after which the Packers scored; the memory of which stayed with Banaszak. In 1968, Banaszak started 11 games and was third on the Raiders in rushing, with 362 yards on 91 carries, along with four rushing touchdowns. He also had 15 receptions for 182 yards. He had three carries for six yards and a touchdown, and one reception for 11 yards, in the
1968 AFL Championship Game; a 27–23 loss to the New York Jets. The following season (1969) Banaszak started four games, with 377 yards on 88 carries on the season. He also had 17 receptions for 119 yards and three receiving touchdowns. He had two rushing attempts and two receptions in the Raiders 17–7 loss to the Kansas City Chiefs in the
1969 AFL Championship Game. Banaszak was injured in 1970. He had only 21 rushing attempts and one reception that season; and did not start a game. The Raiders' starting running backs during the 1970 season were
Hewritt Dixon and
Charlie Smith. Smith also was injured before the 1971 season began, and had only 11 carries that season. Banaszak started all 14 games for the only time in his career. He was a reserve again in 1973 behind Hubbard and Smith, rushing for 198 yards in 34 carries. He started one game in 1974, with 272 yards on 80 carries with five rushing touchdowns. Banaszak had his best season in 1975, even though he did not start any games that season. and his 672 rushing yards led the Raiders that year. He rushed for three touchdowns in a November 23 game against the
Washington Redskins, and in a December 21 game against the Chiefs. He also rushed for two touchdowns in the season's first game against the Dolphins, in an October 26 game against the San Diego Chargers, and in a November 2 game against the Denver Broncos. He received the Gorman Award from his teammates, indicative of the team's most valuable player. The Raiders lost the
1975 AFC Championship Game to the
Pittsburgh Steelers, 16–10. The game was played in freezing conditions with hard hitting on both sides. Banaszak rushed for 33 yards on eight carries, and had 12 yards on two receptions. He also had one of the game's eight fumbles. In 1976, Banaszak had 370 yards on 114 carries, with five rushing touchdowns; along with 15 receptions for 74 yards. The Raiders defeated the Steelers in the
1976 AFC Championship Game, 24–7. Banaszak had 46 yards on 15 carries in that game. He also caught a five-yard touchdown pass from Raiders future Hall of Fame quarterback
Ken Stabler. In what was arguably the highlight of his 13-year career, he rushed for two touchdowns in the Raiders 32–14 victory over the
Minnesota Vikings in
Super Bowl XI. In 1977, Banaszak had 214 yards on 67 carries and another five rushing touchdowns. In the Raiders'
double overtime 37–31 divisional round victory over the
Baltimore Colts, he rushed for 37 yards on 11 carries, and one touchdown. In his final season (1978), he had 147 yards on 43 carries, and seven receptions for 78 yards. Banaszak played his entire 13-year career with the Raiders, from 1966 to 1969 in the AFL and from 1970 to 1978 in the NFL. During his career, Banaszak had 3,772 rushing yards (3.9 yards per carry), 121 receptions for 1,022 yards, and 52 touchdowns (47 rushing and five receiving). In 19 playoff games, he had 427 rushing yards and five rushing touchdowns, and 15 receptions for 133 yards and one receiving touchdown. == Legacy and honors ==