Toyota (1973–1984)

Jaworski was part of the Toyota franchise for 10 years (1973–1983). He was the acknowledged leader of the team and a major player in Toyota's nine PBA championships. He was named Most Valuable Player in 1978. Jaworski's MVP performance may arguably be considered as his best single season, averaging 20 points, 12 assists and close to nine rebounds per game. This was done despite the presence of hulking imports with no height limit – imports he played alongside and against with. The closest that would compete for domination would be Ramon Fernandez's scintillating 1984 season for Beer Hausen where "El Presidente" averaged 27 points, 15 boards and 9.9 assists per game. The difference though was that Jaworski (along with Fernandez and Arnaiz) led the Toyota team to two championships that season (the Open and the AFC) while Fernandez failed to bag a title for Beer Hausen in 1984.

He was also the first point guard to achieve 1000 offensive and 2000 defensive rebounds. He is also the PBA's All Time Leader in Assists.

In 1967, Jaworski and veteran internationalist Narciso Bernardo were named as members of the Mythical Five.

Ginebra San Miguel (1984–1998)

When Toyota disbanded at the end of the 1983 season, the team was sold to Basic Holdings, Inc., the company that owns Asia Brewery. Jaworski balked at the idea of joining Beer Hausen, the brand name of Basic Holdings after describing what he felt was a sale done without giving due respect to the personalities involved. Jaworski described the sale as a 'farce,' and that players like him should not be sold "por kilo." At that time, Beer Hausen was intent on making Fernandez as the franchise player of the team with Jaworski relegated in the background. Eventually, then PBA president Carlos "Honeyboy" Palanca III made a decision that was the most controversial and history-making move in the PBA. Palanca, owner of La Tondeña, Inc. which owns Gilbey's Gin (later Ginebra San Miguel) in the PBA, decided to take in Jaworski and best buddy Arnaiz to the team. This marked the cornerstone in making Ginebra arguably the most popular team in Philippine basketball history with Jaworski at the forefront.

Jaworski and Arnaiz turned the moribund franchise into a competitive one almost overnight when in the first conference of the 1984 season, the All Filipino, they led the team to a runnerup finish against powerhouse Crispa. Gilbey's Gin was then led by Arturo "Turo" Valenzona, a former nemesis of Jaworski from their MICAA days. A power struggle was already ensuing thereby leading to the breakup of the Valenzona-Jaworski partnership at the start of the 1985 season. Jaworski took over as playing coach of Ginebra San Miguel while Valenzona went on limbo before moving to the Tanduay Rhum Makers in the 1986 season.

Jaworski's first championship as a playing coach came in the 1986 Open Conference when he, alongside import players Michael Hackett and Billy Ray Bates, dominated the entire conference to win the championship finals at the expense of the Manila Beer team, then led by former Crispa players Abet Guidaben (who was traded from Tanduay vice Fernandez) and Atoy Co, alongside imports Michael Young and Harold Keeling.

In Game 4 of that Best of Seven series, Jaworski played the entire game that needed two extra overtime periods to beat Manila Beer 145–135, thereby taking a 3–1 lead. Jaworski was 40 years old at that time and yet became a PBA record holder for being the local who played the longest in one game, later to be broken by Jaworski's wedding godson, Zandro "Jun" Limpot while playing for the Sta. Lucia Realtors as a rookie in 1993 by playing 60 minutes in a triple OT victory against SMB. Ironically, Jaworski also owns the PBA record for playing the shortest time in a PBA game, at one second. In a game against the Alaska Milkmen in 1996 and behind by two points with one second in that game, the Big J fielded himself to handle the inbound. While the inbound was successful, the team failed to convert this into a basket and lost the game.

In 1988, Jaworski won his first and only All Filipino championship in a controversial championship against Purefoods Hotdogs, led by Ramon Fernandez who also coached the team in the previous (Open) conference before relinquishing the job to Cris Calilan early in the All Filipino conference. Jaworski and Fernandez were involved in a running feud dating back when Toyota disbanded in 1983 and this became the climax of their rift. In Game 1 of that finals, Anejo Rum 65 upended Purefoods to gain initial lead in the series. Purefoods owner Jaime Zobel De Ayala and president Renato Buhain publicly accused Fernandez of not playing up to par in Game 1 and ordered his benching for the entire series. Because of this controversy, Anejo Rum went on to win the series, 3–1, including the deciding Game 4 where Jaworski became best player of the game – topscoring for his team with 28 points.

In 1989, Jaworski and Fernandez eventually reconciled, ending a long feud. Ironically, it was Baby Dalupan, coach of their archrival Crispa team that made it possible. Dalupan, then coaching the Veterans team of Jaworski and Fernandez in the 1989 All Star Game against the Rookies and Sophomore team, encouraged the two to shake hands after the game where both of them led the Veterans Team to victory by two points, 132–130, over the Rookies, Sophomores and Juniors (RSJ) Team. In the final 4 seconds of that game, Jaworski inbounded the ball and gave the pass to Fernandez who streaked past Benjie Paras and made a twisting "elegant" shot for the two point win. Jaworski, after being appointed national team coach by the BAP, later selected Fernandez in the team to represent the Philippines in the 1990 Asian Games in Beijing, China. Fernandez was among 12 players personally chosen by Jaworski to lead the charge for the team – others included Alvin Patrimonio, Allan Caidic, Samboy Lim, Yves Dignadice, Hector Calma, Benjie Paras, Ronnie Magsanoc, Zaldy Realubit and the Big J's players with Anejo – Dante Gonzalgo, Chito Loyzaga and Rey Cuenco. This team salvaged the silver medal against host China but not after giving the Chinese a good fight in the finals, losing 90–76.

In 1991, Jaworski won his third title at the expense of Formula Shell in Game 7 of the Open Conference. In that deciding game, Jaworski inbounded from the endline to Rudy Distrito with 4 seconds remaining. Distrito made a difficult, twisting, off-balanced and falling shot over the outstretched arms of Paras to pull off a two-point win and to the delight of millions of Ginebra fans watching the game. Jaworski ended up once more as the best player of that game with 13 points, 7 rebounds and 8 feeds in an all-around effort not common for a 45-year-old man. This marked the first time in the history of the PBA that a team came back from a 3–1 deficit to win the championship.

From 1992 to 1995, Ginebra suffered a drought owing to budgetary constraints experienced by the franchise. Jaworski worked with veterans and rookie players alike in trying to earn respectability during this period. In 1995, a PBA record was established when Jaworski took in his eldest son Robert Jaworski, Jr. in the second round of the rookie draft, making this the only time when a father and son played for the same team. However, the two never got to play together as Jaworski contented himself coaching the team while Robert Jr. got his few minutes as a starter.

It was in 1996 when the breakthrough came in for Ginebra, now called Ginebra Na! After years of savoring for super rookie Marlou Aquino, he finally got the 6'9 beanpole as top draft pick of 1996. He also got Bal David from the free agent ranks after the latter displayed capability as a point guard when he and Aquino led the national team to the gold medal in the 1995 SEA Games. David was also the celebrated point guard of the PBL, leading the Stag team to twin championships in 1995. But 1996 was Alaska's year – and the grandslam was accomplished with Gordon's Gin at the losing end in the 3rd and final conference. In 1997 though, Jaworski finally earned his 4th jewel, mentoring the team to the 1997 Commissioner's Cup championship at the expense of the Alaska Milkmen. The team won in 6 games, including a 126–94 rout in the final game.

Jaworski remained as coach of the team until April 1998 when he announced his intention of running for the Philippine Senate in May that year. Jaworski wound up 8th overall in the Senate race, making him one of the few cagers to become a Senator of the Republic – following the footsteps of Ambrosio Padilla and Freddie Webb. Fernandez tried to run for the Senate in the 1995 elections but wound up 19th overall.

Robert Jaworski's retired jersey banner at the rafters of the Smart Araneta Coliseum during the retirement ceremonies.

After being proclaimed Senator, Jaworski turned over the coaching chores to his long-time assistant Quirino "Rino" Salazar while taking a leave of absence from the basketball scene. But in 1999, a controversy erupted when Ginebra owner Eduardo "Danding" Cojuangco, Jr. announced the promotion of Allan Caidic as playing assistant coach of Jaworski in Ginebra. The Big J didn't take this well and resigned from his position as head coach after feeling insulted of not being informed about it beforehand. Salazar took over and later on handed the reins to Caidic when he had to migrate to Alaska and join his family.

Jaworski's last game in the PBA was in March 1997 in a game held at Dumaguete City. He did not play much in that game but owns the record for being the oldest player ever to play in the PBA at 50 years old. This on top of being acknowledged as the league's most popular player and an influential figure in Philippine basketball.

On May 30, 2003, 23 years after the end of the Crispa-Toyota rivalry, Jaworski made an appearance at a reunion game in the Araneta Coliseum, alongside fellow players from both teams. Toyota beat Crispa in that reunion game, 65–62.