During his time in Boston, Rondo helped the Celtics advance to the NBA Finals in 2008 and 2010, winning a championship in 2008 as the team's starting point guard.

[7] In his senior year at Oak Hill Academy, Rondo broke Jeff McInnis's single-season school record of 303 assists, while averaging a double-double.

[12] Rondo, along with All-Americans Joe Crawford and Randolph Morris, gave coach Tubby Smith and Kentucky the top-rated recruiting class for 2004 according to Rivals.com.

The U.S. men's national under-21 basketball team won the gold medal at the Global Games held in Texas in late July.

[22] In another draft-day deal, the Celtics acquired Sebastian Telfair from the Portland Trail Blazers, finally uniting the backcourt Rick Pitino had envisioned at Louisville.

[24] During his rookie season in the NBA, Rondo played a supporting role and would split time with Sebastian Telfair and Delonte West.

While coming off the bench, he managed to score a career-high 23 points against the Toronto Raptors,[5] and record his first career double-double in a road losing effort against the Washington Wizards.

[26] In his first career start, he matched his career-high against the Los Angeles Clippers, though the line-ups were constantly being shuffled between Telfair and Rondo at the point guard.

In the NBA Finals, facing the Los Angeles Lakers, Rondo recorded two strong performances, including a career-high 16 assists in Game 2.

[42] In Game 6, the point guard posted a playoffs career-high 6 steals as the Celtics defeated the Lakers 4–2, giving Rondo his first NBA championship ring.

[52] The team finished the season as the second seed in the Eastern Conference, although they entered the playoffs without their injured All-Star power forward Kevin Garnett.

[71] He joined Wilt Chamberlain and Oscar Robertson as the only other player in NBA history to have 29 points, 18 rebounds and 13 assists in a playoff game.

[85] On February 21, 2012, Rondo was named an injury replacement for Joe Johnson on the Eastern Conference roster at the 2012 NBA All-Star Game.

[95] On June 6, 2012, Rondo passed Bob Cousy for having 39 playoff games of 10 or more assists, making him the Celtics' all-time leader in that area.

[96] Rondo recorded another triple double in the seventh game of the Eastern Conference Finals, but the Celtics lost to the Miami Heat, ending their playoff run.

[106][107] After missing the entire preseason, Rondo returned for the regular season opener on October 29 and recorded 13 points, 12 assists and seven rebounds in 30 minutes to help the Celtics beat the Brooklyn Nets 121–105.

[112] In his return to Boston on January 2, 2015, Rondo scored a career-high 15 first-quarter points, finishing with a season-best 29 to lead Dallas to a 119–101 victory.

[114][115] And while the Mavericks' defense slightly improved with the acquisition of Rondo, their offense took a noticeable step backward,[114] dropping from the best in the league to fourth in points per game by late February.

The team claimed that a back injury had sidelined Rondo indefinitely, but reports later surfaced that that was simply to "save face" after the two sides decided to part ways.

[117][118] He made his debut for the Kings in their season opener on October 28, 2015, recording four points, seven rebounds and four assists in a 111–104 loss to the Los Angeles Clippers.

[136][137] He made his debut for the Bulls in their season opener on October 27, recording 4 points, 6 rebounds, 9 assists and 2 steals in a 105–99 win over the Boston Celtics.

He was subsequently removed from coach Fred Hoiberg's rotation for five games before being reinserted following injuries to Dwyane Wade and Jimmy Butler.

[159] In Game 1 of the Pelicans' first-round playoff series against the Portland Trail Blazers, Rondo tied a franchise record with 17 assists to go with eight rebounds and six points in a 97–95 win.

[164] On July 6, 2018, Rondo signed a one-year, $9 million contract with the Los Angeles Lakers,[165][166] who expected him to mentor and compete with second-year point guard Lonzo Ball.

[168] Two days later, in a game against the Houston Rockets, Rondo and Chris Paul got into a fist fight over a shove by Brandon Ingram delivered to James Harden.

[174] On December 25 against the Golden State Warriors, after just three games back from his hand injury, Rondo suffered a sprain to his right ring finger.

[176] On February 7, he hit a 20-foot jumper as time expired in Boston to lift the Lakers to a 129–128 win over the Celtics, as he finished with 17 points and 10 assists.

[184] On March 25, 2021, Rondo was traded to the Los Angeles Clippers in exchange for Lou Williams, two second-round draft picks and cash considerations.

[187] On August 16, 2021, Rondo was traded, alongside Daniel Oturu, Patrick Beverley and a second-round draft pick to the Memphis Grizzlies in exchange for Eric Bledsoe.

Though all of the initial charges he was arrested for were considered to be only misdemeanors, it was later acknowledged that his 2022 legal agreement included a no-contact order which forbade him from keeping a gun.