[4] When Oftana was in second year high school, he was discovered by Coach Mike Villahermosa of Asian College-Dumaguete.

[8][9][10] He was a backup to Art Dela Cruz and Javee Mocon during this time, as he developed his work ethic.

[14] He won Player of the Week again after scoring a personal-best 29 points while adding nine rebounds, five assists, and two steals in San Beda's rematch over the Blazers.

[20] In their elimination round match against the Meralco Bolts, he had a then career-high 34 points on 8-of-11 shooting on three-pointers and 12-of-18 from the field in 29 minutes of play; breaking the all-time record in three point attempts made by a rookie at eighth, erasing the 34-year mark of Allan Caidic at seven.

[22] On February 11, 2022, during a 100–110 loss against the Meralco Bolts, Oftana exited the game in the fourth quarter after suffering an injury.

[24] In Oftana's first game since the injury (which was also NLEX's season-opener for the 2022–23 season), he scored 18 of his 20 points in the fourth quarter to help his team outscore the Terrafirma Dyip and complete their comeback win.

[26] The Road Warriors won in overtime, and he finished with 22 points, 10 rebounds, seven assists, two steals, and two blocks.

[29] Prior to playing a game with the team, he signed a three-year contract extension on October 4.

[30] In his first game with TNT during the Commissioner's Cup, he had 12 points and seven rebounds, but committed two costly turnovers in the fourth quarter and was whistled for fouling Paul Lee with 4.3 seconds left.

Against his former coach Yeng Guiao, now with the Rain or Shine Elasto Painters, he contributed 15 points, eight rebounds, and four assists in the win.

[35] After missing a game due to health protocols, he had a double-double of 14 points and 10 rebounds to help TNT take the win over Magnolia.

[42] In Game 5, he stepped up for injured RR Pogoy with 20 points on four triples as TNT took a 3–2 series lead.

[45] In TNT's first game of the 2023–24 season, Oftana scored 28 points as he tried to rally the team against Magnolia, but they lost.

[53] Oftana started the 2024 Philippine Cup by scoring TNT's last five points in a clutch win over Rain or Shine.

[58] In Game 1 of the quarterfinals against Rain or Shine, he scored 32 points, with 18 coming in the third quarter, to lead all scorers and get the win.

[63] In 2022, Oftana made his return to the national team for the fourth window of qualifying for the 2023 World Cup.

However, he suffered a Grade Two strain in his calf in Gilas' first game against Malaysia and was later ruled to be out for the rest of the tournament.