Top 5 all-time Houston Rockets blocks leaders

Hakeem Olajuwon sits atop the Houston Rockets all-time blocks list.

The Houston Rockets are a storied franchise with eight division titles and two NBA championships over the course of their 59 years in the league. Let’s take a look at the best rim protectors to suit up in Space City, headlined by the sport’s all-time leader in blocks, Hakeem Olajuwon.

1.

Hakeem Olajuwon

– 3,740 blocks

On a list composed of four Hall of Famers, Olajuwon is head and shoulders above the other Rockets when it comes to blocks. His 3,740 rejections are the highest of any one player in any franchise’s history, and he remains the NBA’s all-time leader with 3,830 across his legendary 18-year career.

Houston took Olajuwon first overall in the 1984 NBA Draft, where he went on to play 17 consecutive seasons from 1984-85 to 2000-01. He was a 12-time All-Star, led the league in blocks three times, including a career-best 4.6 bpg in 1989-90, a 12-time All-NBA selection, nine-time All-Defensive selection, two-time Defensive Player of the Year (1992-93, 1993-94), the 1994 MVP, two-time Finals MVP and a member of the NBA’s 75th Anniversary Team. Olajuwon was the driving force in the Rockets’ back-to-back championships in 1994 and 1995.

Over his 17 seasons in Houston, Olajuwon averaged 22.5 ppg, 11.4 rpg, 2.5 apg, 1.8 spg and 3.2 bpg in 1,177 regular-season appearances. He blocked at least 2.0 shots per game for 15 straight years until 1999-00, and never averaged less than 1.5 bpg throughout his tenure with the Rockets and into his final campaign with the Toronto Raptors in 2001-02 at the age of 39.

2.

Yao Ming

– 920 blocks

The Rockets chose Ming first overall in the 2002 NBA Draft, and he was an absolute force during his time as a pro until his retirement in 2011.

Ming played all 82 games in his rookie campaign and averaged 13.5 ppg, 8.2 rpg, 1.7 apg and 1.8 bg, earning him an All-Star nod. He made five All-NBA teams and was voted as an All-Star in each of his eight seasons.

Ming posted a career-high 2.0 bpg on three separate occasions and compiled career averages of 19.0 ppg, 9.2 rpg, 1.6 apg and 1.9 bpg in 486 contests, all with Houston. He was elected to the Hall of Fame in 2016.

3.

Moses Malone

– 758 blocks

Malone began his Hall of Fame career with the Utah Stars in the ABA in 1974-75, but he became one of the most dominant players in NBA history once he joined the Rockets at age 21 in 1976-77.

During his six-year tenure in Houston, Malone averaged 24.0 ppg, 15.0 rpg, 1.5 apg, 0.9 spg and 1.6 bpg across 464 games. Over this stretch of time, Malone won two MVP awards (1979, 1982), made five consecutive All-Star appearances and four consecutive All-NBA teams while also earning his first of two All-Defensive selections. He also recorded a career-high in blocks during his first MVP campaign in his first year with the franchise in 1977.

In total, Malone was a 13-time All-Star, eight-time All-NBA selection, two-time All-Defensive selection, three-time MVP, 1982-83 Finals MVP and champion with the Sixers and a member of both the ABA All-Time Team and NBA 75th Anniversary Team.

4.

Ralph Sampson

– 585 blocks

The 7-foot-4 Sampson burst onto the scene as the first overall pick by Houston in the 1983 NBA Draft. Sampson appeared and started in all 82 games during his debut campaign, winning Rookie of the Year and making his first of four consecutive All-Star teams after averaging 21.0 ppg, 2.0 apg and career-highs in rebounds (11.1) and blocks (2.4).

He followed that up with a career-high 22.1 ppg to go along with 10.4 rpg and 2.0 bpg in his sophomore season, helping him achieve his lone All-NBA Second Team honor. In 305 outings as a Rocket, Sampson averaged 19.7 ppg, 10.5 rpg and 1.9 bpg.

Sampson was ultimately inducted into the Hall of Fame in 2012.

5.

Clint Capela

– 554 blocks

Capela is in his second stint with Houston after the franchise drafted him 25th overall in 2014.

In his seven seasons with the Rockets, he averaged 10.7 ppg, 8.8 rpg and 1.4 bpg in 409 games.

Capela was traded to the Hawks ahead of the 2020-21 campaign, when he popped off with 15.2 ppg and led the NBA with a career-high 14.3 rpg while notching a career-high 2.0 bpg.

He enjoyed five productive seasons in Atlanta before returning to Houston in a sign-and-trade in 2025-26.