Ibekwe attended Carson High School in Carson, California. As a senior in 2002–03, he was a second-team Parade All-American after averaging 19.9 points, 10.2 rebounds and 4.4 blocks per game in leading his squad to a 23-4 record and a semi-final finish in the Los Angeles city championship. He also earned all-state honors and a first team "All-Dream Team" nod by the Long Beach Press-Telegram as a senior, while he was named to the All-L.A. city first team, the All-South Bay first team and his team's MVP as a junior and senior.
College career
In his freshman season at Maryland, Ibekwe was the only freshman to play in all 32 games, drawing seven starts during his rookie season. He led the Terps in blocked shots with 44, an average of 1.4 per game, becoming the first freshman to lead the Terps in blocked shots since Joe Smith. In those 32 games, he averaged 4.9 points and 3.9 rebounds per game. In his sophomore season, he played in 30 of 32 games on the season, starting 18 while finishing fifth on the team in scoring with 8.4 points per game and second in rebounding with 6.3 boards. He also led the team in blocks with 55, finishing fourth among ACC leaders with 1.83 blocks per game. On November 30, 2004, he recorded his first career double-double with a career-high 21 points on 10-of-13 shooting at Wisconsin. In his junior season, he appeared in 32 games and made 30 starts while averaging 11.1 points and 6.6 rebounds per game; also finished the year seventh in the ACC with 1.34 blocks per game. In his senior season, he earned ACC All-Defensive Team and All-ACC Honorable Mention honors. In 32 games, he averaged 10.4 points, 7.8 rebounds and 2.7 blocks per game. For his career, he accrued 1,107 points, 781 rebounds and 230 blocks, becoming the fourth player in school history to record 1,000 points, 500 rebounds and 200 blocks.
Professional career
2007–08 season
Ibekwe went undrafted in the 2007 NBA draft. In August 2007, he signed with Hapoel Galil Elyon of Israel for the 2007–08 season. In October 2007, he was released by Galil Elyon and later signed with Hapoel Gilboa/Afula. In February 2008, he parted ways with Gilboa/Afula. The next month, he joined Besançon BCD of France for the rest of the season.
In July 2010, Ibekwe joined the Portland Trail Blazers for the 2010 NBA Summer League. In August 2010, he signed with the Artland Dragons of Germany for the 2010–11 season. On December 16, 2010, he parted ways with Artland. Three days later, he signed with Ironi Ashkelon of Israel for the rest of the season. In February 2011, he parted ways with Ironi and signed with Bayreuth of Germany for the rest of the season.
2011–12 season
On July 8, 2011, Ibekwe re-signed with Bayreuth for the 2011–12 season.
2012–13 season
In July 2012, Ibekwe re-joined the Portland Trail Blazers for the 2012 NBA Summer League. On August 16, 2012, he signed with Lagun Aro GBC of Spain for the 2012–13 season.
2014–15 season
On August 18, 2014, Ibekwe signed with the New Zealand Breakers for the 2014–15 NBL season. In what was a great season for Ibekwe, he earned All-NBL second team honors and helped lead the Breakers to the NBL Grand Final. After winning Game 1 against the Cairns Taipans in Cairns, Game 2 shifted to Auckland where in the dying seconds of the game, it was tied up 81-81. Coming out of the timeout, Ibekwe hit a game-winning fade-away shot to lift the Breakers over the Taipans 83-81 and thus clinched the team's fourth title in five seasons. On March 18, 2015, he signed with Atenienses de Manatí of the Baloncesto Superior Nacional to replace center Jerome James. His stint with Manatí lasted just 11 games as he parted ways with the club in mid-April. In those 11 games, he averaged 9.1 points, 6.4 rebounds and 1.2 blocks per game.
On July 20, 2016, Ibekwe signed with ČEZ Nymburk of Czech Republic for the 2016–17 season. On October 20, 2016, he left Nymburk and signed a two-month contract with German club Skyliners Frankfurt. Following the expiration of contract, he left Frankfurt. On December 30, 2016, he signed with Turkish club Uşak Sportif. On May 1, 2017, Ibekwe signed with the French LNB Pro A club Élan Chalon for the rest of the 2016–17 Pro A season.
On November 29, 2019, he has signed with Élan Béarnais of the LNB Pro A.
International career
Ibekwe has been a member of the senior men's Nigerian national basketball team. He played at the 2006 FIBA World Championship, where he was one of the team's leaders in points and rebounds. He also played at the 2012 and 2016 Summer Olympics.
Personal
Ibekwe is the son of Nigerian parents, Agatha and Augustine Ibekwe. His brother, Onye, played college basketball for Long Beach State. He also has two sisters, Chinyere and Ify.
