Ron Harper Jr. Bio
Ronald Harper Jr. is an American professional basketball player for the Boston Celtics of the National Basketball Association (NBA), on a two-way contract with the Maine Celtics of the NBA G League. He played college basketball for the Rutgers Scarlet Knights of the Big Ten Conference and is the son of former NBA player Ron Harper. His younger brother, Dylan Harper, was selected second overall by the San Antonio Spurs in the 2025 NBA Draft.
Listed at 196 cm and 106 kg, Harper is a versatile wing who built his reputation as a sharp three-point shooter during his time at Rutgers. After going undrafted in 2022, he has worked his way through the NBA system with the Toronto Raptors, Detroit Pistons, and their respective G League affiliates before reaching Boston in 2025.
Early Life and Background
Ronald Harper Jr. was born on April 12, 2000, in Paterson, New Jersey, while his father, Ron Harper, was playing for the Los Angeles Lakers in the NBA. He grew up playing basketball under the coaching of his mother, Maria, a former college player herself. On the Amateur Athletic Union circuit, Harper competed for Ring City Basketball, a program owned by his parents.
Raised in Upper Saddle River and Franklin Lakes, New Jersey, he attended Don Bosco Preparatory High School in Ramsey, New Jersey. As a junior, Harper averaged 10.1 points and 1.5 rebounds per game while shooting 37 percent from three-point range, and he helped his team win its first Non-Public A state title in 47 years. In his senior season, he averaged 20.8 points and 3.9 rebounds per game, leading his team to its second straight Non-Public A state championship. He scored a career-high 33 points in a loss to Roselle Catholic High School at the Tournament of Champions final and was named North Jersey Player of the Year by The Record.
Considered a four-star recruit by Rivals, Harper’s only Power Five scholarship offers were from Nebraska and Rutgers. On August 11, 2017, he committed to play college basketball for Rutgers.
Path to Basketball
Harper’s path to professional basketball began in his living room, where he absorbed the game under his parents’ guidance, and continued on the AAU circuit with Ring City Basketball. At Don Bosco Prep, he developed into one of the most accomplished scorers in New Jersey, winning back-to-back Non-Public A state championships and earning statewide recognition.
Despite limited high-major recruiting attention, his commitment to Rutgers in 2017 set the stage for a college career that would restore the program’s national relevance. By the time he reached his junior season, he had become one of the Big Ten’s most reliable outside shooters and a central figure in Rutgers’ return to the NCAA Tournament after three decades away.
Ron Harper Jr. Career
Early Career at Rutgers (2018–2022)
Harper made his collegiate debut against Fairleigh Dickinson and posted 15 points. On March 2, 2019, he scored a freshman season-high 27 points in an 86–72 win over Iowa, finishing his first year with averages of 7.8 points and 3.1 rebounds per game. During the offseason, he improved his strength and conditioning, gaining roughly 15 pounds.
As a sophomore, he became a regular starter, recording a season-high 29 points and nine rebounds in an 85–80 loss to Iowa on January 22, 2020, and scoring 27 points on 5-of-5 shooting from three-point range in a victory over Illinois. He averaged 12.1 points and 5.8 rebounds per game, earning All-Big Ten Honorable Mention and a spot on the Second Team All-Met.
Rutgers Breakthrough (2020–2022)
On November 27, 2020, Harper scored a career-high 30 points with five three-pointers in a 96–75 win over Fairleigh Dickinson. As a junior, he helped lead Rutgers to their first NCAA Tournament appearance in 30 years, averaging 14.9 points and 5.9 rebounds per game. Following the season, he declared for the 2021 NBA Draft but ultimately opted to return to Rutgers.
His senior campaign produced his most memorable college moment. On December 9, 2021, Harper tied his career high of 30 points to go with 10 rebounds against Purdue, hitting a buzzer-beater from just inside halfcourt to give the Scarlet Knights a 70–68 win, Rutgers’ first victory over a No. 1 ranked team. He was named to the Second Team All-Big Ten and won the Haggerty Award. Following Rutgers’ loss in the First Four of the 2022 NCAA men’s basketball tournament, he announced he would forgo his final season and declare for the 2022 NBA Draft. He ultimately went undrafted.
Toronto Raptors Era (2022–2023)
On July 14, 2022, after going undrafted, Harper signed a two-way contract with the Toronto Raptors and made his NBA debut against the Atlanta Hawks. Raptors general manager Bobby Webster noted that Wayne Embry, the team’s senior basketball advisor, was involved in both signing Harper and drafting his father, Ron Harper, decades earlier.
On July 22, 2023, Harper signed another two-way contract with the Raptors, but on December 8, he was waived.
Detroit Pistons / Motor City Cruise Era (2025)
On January 6, 2025, Harper signed a two-way contract with the Detroit Pistons. Assigned to the Motor City Cruise of the NBA G League, he quickly established himself as one of the league’s most dangerous perimeter shooters. On February 1, he set the Cruise record for most three-pointers made in a single game by hitting 11 of his 18 attempts in a 145–132 win over the Long Island Nets, breaking a tie previously held by Deividas Sirvydis and Stanley Umude at seven each.
Boston / Maine Celtics Era (2024–2025)
After joining the Boston Celtics for the 2024 NBA Summer League, Harper signed with the team on July 14, 2024, but was waived on October 17. On October 26, he joined the Maine Celtics, where he spent the bulk of the 2024–25 season developing his game.
On August 16, 2025, the Boston Celtics signed Harper to a training camp contract. On October 16, following the release of RJ Luis Jr., he was converted into a two-way contract, placing him on the Celtics’ roster and the Maine Celtics’ affiliate.
Driving Style and Strengths
Harper is best known as a high-volume, accurate three-point shooter with size and length on the wing. His shooting range, footwork off screens, and ability to stretch defenses have defined his role at every level, from Rutgers to the G League. He pairs that shooting with a strong frame, allowing him to compete on the glass and finish through contact around the rim.
Notable Events and Milestones
Harper’s signature moment came on December 9, 2021, when his buzzer-beating three against top-ranked Purdue gave Rutgers its first-ever win over a No. 1 team. In the G League, his 11-three-pointer performance for the Motor City Cruise stands as a franchise record, underscoring his reputation as a perimeter specialist.
Ron Harper Jr. Career Wins
Ron Harper Jr. has built a professional resume highlighted by postseason college success, G League record-setting performances, and a current two-way contract with the Boston Celtics.
NCAA and College Highlights
At Rutgers, Harper helped the Scarlet Knights reach the 2021 NCAA Tournament, their first appearance in 30 years, and delivered the game-winning shot against No. 1 Purdue the following season. He earned Third-team All-Big Ten honors in 2021 and Second-team All-Big Ten in 2022, when he was also named an AP Honorable Mention All-American and won the Haggerty Award.
NBA and G League Performances
In the NBA, Harper has suited up for the Toronto Raptors, Detroit Pistons, and Boston Celtics, primarily on two-way contracts. His most notable professional achievement came on February 1, 2025, when he set the Motor City Cruise single-game record with 11 made three-pointers against the Long Island Nets.
Ron Harper Jr. Family
Family Background and Basketball Lineage
Harper’s father, Ron Harper, was an All-American college basketball player at Miami (Ohio) and played 15 seasons in the NBA, winning five championships. His mother, Maria, is from Bataan, Philippines, and played college basketball at the University of New Orleans as a freshman in 1993–94. She is a former head coach of the DePaul Catholic High School girls’ varsity team in New Jersey and is currently an assistant coach for the boys’ team at Don Bosco, where she coached both Ron Jr. and his brother Dylan.
Harper’s maternal grandfather represented the Philippines in jai alai at the 1968 Summer Olympics. Ron Jr. has expressed interest in playing for the Philippines national basketball team but was unsuccessful when he tried to apply for a Filipino passport as a high school student.
Personal Life
Harper’s younger brother, Dylan Harper, joined the Rutgers basketball team in 2024 before declaring for the 2025 NBA Draft, where he was selected second overall by the San Antonio Spurs. The brothers both followed their father’s path to the NBA, making them one of the league’s most notable recent family stories.
2025 Season Performance
Harper’s 2025 calendar has been defined by movement between the NBA and G League levels. After signing a two-way contract with the Detroit Pistons in January, he spent significant time with the Motor City Cruise, where he set the franchise’s single-game three-point record on February 1 with 11 makes against the Long Island Nets.
In August 2025, he joined the Boston Celtics on a training camp deal, and on October 16, he was converted to a two-way contract, splitting the 2025–26 season between Boston and the Maine Celtics. The arrangement provides Harper an opportunity to compete for rotation minutes with the Celtics while continuing to sharpen his game in the G League.
Heading into the rest of 2025, Harper’s outlook is shaped by his proven shooting ability and his family’s championship pedigree. If he can translate his G League production to the NBA level, he has a clear path to a more substantial role within the Boston organization.