Quiñones grew up in Brentwood, New York and started playing basketball in sixth grade. In his first two years of high school, he attended Brentwood High School. As a junior, Quiñones transferred to Upper Room Christian School in Dix Hills, New York and averaged 19.3 points per game.[2] He was named to the 2017 Long Island Basketball honor roll.[3]
For his senior season, Quiñones moved to St. Benedict's Preparatory School in Newark, New Jersey. He joined a nationally ranked basketball program and became teammates with five-star recruit Precious Achiuwa.[4][5] On January 7, 2018, Quiñones scored a game-high 23 points in a win over Hudson Catholic Regional High School, the number one team in the NJ.com Top 20 poll.[6] He helped his team to a 28–2 record and a top 10 national ranking by MaxPreps.[7] In the summer, Quiñones played for New Heights alongside Achiuwa, averaging 15.2 points and 4.7 rebounds on the Under Armour Association (UAA) circuit.[8]
Entering the 2018–19 season, he transferred to IMG Academy, a prep school in Bradenton, Florida with a successful basketball program, joining the postgraduate team.[9] Quiñones averaged 24 points, nine rebounds, and six assists per game, shooting 38 percent on three-pointers.[10]
Recruiting
Quiñones finished his high school and postgraduate career as a consensus four-star recruit.[11] On May 10, 2019, he committed to play college basketball for Memphis under head coach Penny Hardaway. He had also strongly considered playing for Indiana.[12]
With James Wiseman sitting out due to eligibility issues, Quiñones had his first double-double on November 16, 2019, recording 21 points and 10 rebounds in a 102–56 win over Alcorn State.[13] As a result, he was named American Athletic Conference freshman of the week on November 18.[14] Quiñones broke his right hand during a November 23 game against Ole Miss and missed three weeks.[15] At the conclusion of the regular season, Quiñones was named to the American Athletic Conference All-Freshman Team.[16] He averaged 10.7 points, 3.8 rebounds and 2.2 assists per game.[17] After his junior season, Quiñones announced his intentions to leave Memphis and enter the NBA draft.
On March 2, 2023, Quiñones signed a 10-day contract with Golden State, but saw no playing time.[22] Ten days later, he was reacquired by Santa Cruz.[23]
On March 17, 2023, Quiñones signed a two-way contract with Golden State.[24] He made his NBA debut on March 31, versus the San Antonio Spurs, playing one minute and securing his first rebound.[25] On April 4, he was named the NBA G League Most Improved Player.[26]
On July 24, 2023, Quiñones signed another two-way contract with the Warriors[27] and on February 22, 2024, he signed a standard contract with Golden State.[28] On March 3, he led the Warriors in points and minutes in a blowout loss to the Boston Celtics.[29]
Quiñones was born in the United States, but is of Salvadorian, Dominican and Puerto Rican descent.[35] Internationally, he represents the Dominican Republic.[36]
