Crabb and Gibb were one of two United States men's beach volleyball teams that qualified for the 2020 Summer Olympics.
His father Chris was a professional indoor volleyball player,[5] while his mother Paula was on the Southern Connecticut State University gymnastics team.
[7] His brother Trevor, three years his senior, played NCAA Division I (D-I) indoor volleyball for the Long Beach State 49ers.
In his senior year, Punahou completed an undefeated season by winning the state championship, with Crabb named as the tournament's Most Outstanding Player.
The United States beat Canada in three straight sets in the finals to win the gold medal, and Crabb was named the Best Spiker of the tournament.
[14] Crabb went on to captain the 12-man under-21 national team that competed at the 2011 U21 World Championship in Rio de Janeiro, Brazil.
[22] He led the 49ers to their first Mountain Pacific Sports Federation (MPSF) conference finals in seven years,[23] where they lost to the BYU Cougars.
[24] At the end of the 2012–13 season, Crabb was selected to the first team All-American and was voted National Player of the Year by the American Volleyball Coaches Association (AVCA).
[25] While still in college, Crabb partnered with his brother Trevor to compete as an amateur on the domestic beach volleyball circuits.
[11][25] He made his Association of Volleyball Professionals (AVP) debut two years later at the 2013 Manhattan Beach Open, where he and Trevor came through the qualifiers and faced the top-seeded Phil Dalhausser and Sean Rosenthal in the first round of the double-elimination main draw.
[26] Upon graduating from Long Beach State in 2014, Crabb signed with Arago de Sète to play professional indoor volleyball in the French Pro A league.
[27] Sète ended the 2014–15 regular season ranked 6th out of the 14 Pro A clubs,[b] with Crabb contributing mostly as a substitute outside hitter.
[26] They defeated a team from China in the qualifying round to advance to Crabb's first World Tour main draw where they were seeded 29th.
Overall, he and Trevor finished in the top-three of all seven AVP tournaments they entered, notching victories against top domestic teams including Doherty and Mayer, and Gibb and Patterson.
25 seeds, including an upset over the tenth-seeded Clemens Doppler and Alexander Horst of Austria, before falling to their fifth-seeded compatriots Gibb and Patterson.
In the bronze-medal match, they lost another three-setter, this time to the 12th-seeded Daniele Lupo and Paolo Nicolai of Italy, who they had beaten earlier in the group stage.
Crabb and Gibb ended the 2019 AVP season beating Theo Brunner and John Hyden at the $100K Hawaii Open, rallying from a first set loss to win 18–21, 22–20, 17–15.
On the World Tour, the duo began the 2019 season with a fifth-place finish at the $75K Sydney Open in March, and did not place higher than ninth in their next seven tournaments.
In the group stage, they upset Germany's 16th-seeded Nils Ehlers and Lars Flüggen, and Italy's top-seeded Lupo and Nicolai to advance to the knockout rounds.
They eventually lost to the fifth-seeded Julius Thole and Clemens Wickler of Germany in the semifinals, and then to the second-seeded Mol and Sørum of Norway in the bronze-medal match.
[26] Crabb and Gibb ended the international season winning their first World Tour title at the $150K Chetumal Open in November.
2 seeds of Michal Bryl and Grzegorz Fijałek on their way to the gold-medal match, where they beat the top-seeded Dutch team of Alexander Brouwer and Robert Meeuwsen in three sets.
[5][49][50] His collegiate coach Alan Knipe said that Crabb made up for his shorter stature with his 40 inch (100 cm) vertical jump, versatility and knowledge of the sport.
[57] Crabb's middle name is Kikaha o Ke Kai, which means "glide over the ocean" in Hawaiian; it was given to him because his mother had participated in a 46-mile canoe race while pregnant with him.