In 1975, Segura was part of the first PBA champion team Toyota Comets. Under coach Dante Silverio, they would later win more championships in the pro league, more notably over their archrivals, the Crispa Redmanizers. His best average of close to 22 points, 4.32 rebounds, 1.49 assists, and .63 steals a game happened in his first PBA year.[6][7]
Mariwasa
Segura's second PBA team was Mariwasa where he played 26 games in 1978.[8]
U/Tex
Segura retained his double-digit scoring average as a U/Tex Wrangler in 1979.[9]
MSW
Segura played two more games as a Winston King, wrapping up his PBA career with 223 games played and averaging 14.71 points a game.[10]
Post-retirement
Segura accepted coaching offers in various leagues and took training and leadership roles in the conduct of basketball clinics of Milo and other companies.[11][12]
Segura reunited with his alma mater in the 1990s and early 2000s when he was named assistant coach of the Lady Falcons, who won several championships in the UAAP under head coach Emelia Vega. He was also the assistant coach of the Pampanga Dragons, who won the first championship of the defunct Metropolitan Basketball Association (MBA) under head coach Aric del Rosario.[13]
Another sort of reunion occurred at the rekindling of the Crispa-Toyota rivalry but with a twist, as they were past their prime and opted to play for the fans in a PBA All-Star game at the Araneta Coliseum in 2003.[14][15]
