Thurmond started at Akron's Central High School, where he played alongside fellow future NBA star Gus Johnson. Passing up a scholarship offer from Ohio State to avoid becoming a backup to Jerry Lucas, a high school rival, Thurmond chose to play college basketball at Bowling Green. Thurmond led the Mid-American Conference in rebounds during all three of his varsity seasons, and was named a first-team All-American by The Sporting News in 1963. In Thurmond's last two years with Bowling Green, he helped lead the team into the NCAA Tournament and he set a school record with 31 rebounds in his final college game.
NBA career
San Francisco/Golden State Warriors
Thurmond was drafted by the San Francisco Warriors in the 1963 NBA draft. As a rookie, he mainly played a supporting role alongside Hall of Fame center Wilt Chamberlain. Thurmond averaged 7 points and 10.4 rebounds in his first NBA season and was named to the NBA All-Rookie Team in 1964. After Chamberlain was traded to the Philadelphia 76ers during the next season, Thurmond blossomed into a highly productive starting center for the Warriors. Among his many accomplishments, Thurmond set a regular season record for rebounds in a quarter with 18, and averaged 21.3 and 22.0 rebounds per game in the 1966–67 and 1967–68 seasons. Thurmond placed second to Chamberlain in the MVP balloting in the 1966–67 season, averaged over 20 points per game each season from 1967–68 through 1971–72, and played in seven NBA All-Star Games as a member of the Warriors. Thurmond also gained a fearsome defensive reputation in the NBA. Kareem Abdul-Jabbar called Thurmond the toughest defender he ever faced during his 20-season professional career. NBA All-Star center Bob Rule recalled Thurmond blocking six of his seven shots during the first half of their first encounter. After his coach urged him to "Keep putting ’em up. He can’t block ’em all," Rule responded "Yeah, well if I hadn’t made that layup it would have been all of ’em.” However, even with the contributions of star teammates like Rick Barry, the Warriors were unable to win a championship with Thurmond at center. They reached the 1967 NBA Finals, but lost to Chamberlain's 76ers.
Thurmond was acquired by the Chicago Bulls in exchange for Clifford Ray and $100,000 prior to the 1974–75 season on September 3, 1974. The Bulls had felt a need for one starting center rather than continue with a three-man rotation of Ray, Tom Boerwinkle and Dennis Awtrey. The Warriors added more fiscal stability when completing the deal. On October 18, 1974 against the Atlanta Hawks, in his debut as a Bull, he recorded 22 points, 14 rebounds, 13 assists and 12 blocked shots, becoming the first player in NBA history to officially record a quadruple-double.
Cleveland Cavaliers
Thirteen games into the 1975–76 season, Thurmond was traded along with Rowland Garrett to the Cleveland Cavaliers for Steve Patterson and Eric Fernsten on November 27, 1975. Thurmond's mobility on the court failed to mesh with an offense built for a more stationary center, resulting in diminished playing time on a team enduring a nine-game losing streak at the time of the deal. In Cleveland, the now 35-year-old Thurmond came off the bench for the injured Jim Chones to lead Cleveland's "Miracle at Richfield" team to the NBA Eastern Conference Finals before the Cavaliers lost to the Boston Celtics in 1976.
Retirement and death
After retirement, Thurmond returned to San Francisco and opened a restaurant, Big Nate's BBQ. He sold the restaurant after 20 years, while living in San Francisco with his wife, Marci. As of 2019, the Chase Center, home venue for the Golden State Warriors, features a Big Nate's BBQ kiosk with dishes that pay homage to his career. He was given the title "Warriors Legend & Ambassador" by the Warriors organization. Thurmond died on July 16, 2016, nine days away from his 75th birthday, after a short battle with leukemia.
Statistical accomplishments
First player in NBA history to record a quadruple-double in a game: Chicago Bulls vs. Atlanta Hawks,
22 points, 14 rebounds, 13 assists, and 12 blocked shots
The game was Thurmond's debut with the Chicago Bulls.