Regille Kent Ilagan (born April 3, 1997) is a Filipino professional basketball player for the Blackwater Bossing of the Philippine Basketball Association (PBA). He played college basketball for the San Sebastian Stags, where he gained a reputation as one of the best amateur shooters in the country. In the PBA, he is known as a clutch scorer.

Early life and high school career

Ilagan was born in Manila, and raised in Bulacan until Grade 5, when he went back to Manila when his parents gave in to his desire to play varsity basketball.

RK Ilagan

Ilagan first tried out for the high school team of San Sebastian. After failing to crack that lineup, he tried out for the NU Bullpups, but that didn't work out either. After participating in the Junior NBA program did he finally get to play for the San Sebastian Staglets.

RK Ilagan

In Season 90, Ilagan had 22 points against the San Beda Red Cubs. He stayed with the Staglets for two years before moving up to the Stags' Team B.

RK Ilagan

College career

Ilagan first played for the San Sebastian Stags in NCAA Season 92. In both of their matchups against the Arellano Chiefs, he helped the Stags rally but fell short both times as Arellano won their matchups. In the 3-Point Shootout during All-Star festivities, he made it to the final round before losing to San Beda's AC Soberano. After the break, the Stags went on a four-game winning streak, with him hitting seven three pointers for 25 points against the Lyceum Pirates in their fourth straight win. Their streak was broken in a loss to the Letran Knights, in which he only scored one point. San Sebastian finished with a record of 8–10, not making it to the Final Four.

In Season 93, after their opening loss to San Beda, Ilagan contributed nine points and seven rebounds in a win over Arellano. He lost once again in the 3-Point Shootout, this time to Mapua's Almel Olquina. With a shot for a Final Four spot on the line, he had 23 points and five rebounds in a blowout win over the Perpetual Altas. His performance trended on Twitter. His teammates Michael Calisaan and Ryan Costelo then scored big in the fourth-seed playoff against Letran to officially make the Final Four for the first time since Season 89. In the first round, they faced the JRU Heavy Bombers. He then unloaded 21 points with five three-pointers against them to move on to the next round. There, their season ended in a loss to the San Beda Red Lions.

In Season 94, Ilagan became one of the veterans of the team, and expectations were that they would contend for the championship that season. He had 18 points and four assists against Lyceum, but he fouled out with a technical foul, costing San Sebastian the win. He then got injured in a loss against Arellano with a cut over his right eye, but was still able to finish the game. With his team already struggling, he was then investigated for playing in a "ligang labas". As a result, San Sebastian College suspended him for the rest of the first elimination round. The NCAA also forfeited the Stags' two wins in the first round in which he played in, which sank them to the bottom of the standings. He apologized to his team, and returned with 13 points in a loss to Lyceum. The Stags got a win in a match against the EAC Generals, with him leading the team with 13 points. He then got a career-high 26 points on 10-of-15 shooting with six triples in a blowout win over the Mapúa Cardinals. The Stags then ended their season with a big win over Arellano.