[1] Alas was the former head coach of the Letran Knights in the National Collegiate Athletic Association, and Philippine Patriots in the ASEAN Basketball League.
Alas was supposed to handle another MBA team, the Batangas Blades when the PBA's Mobiline Phone Pals gave him an offer a chance to coach, and immediately took it.
[3] While in the PBA, he led the Phone Pals to its best record in the elimination phase of the Governor's Cup in 2000 and 2001 but all ended up losing in the semis.
Alas was replaced by American Bill Bayno who immediately received heavy criticism from the nationalist Basketball Coaches Association of the Philippines due to his nationality.
In 2003, his Letran Knights will face the Stags again in the finals and once again he prevailed thanks to the heroics of Boyet Bautista, Aaron Aban and Jonathan Pinera.
The Knights captured the third-place trophy in the league's Unity Cup after beating defending champions Hapee Toothpaste Sparklers.
In the 2006 PBL Unity Cup, he led Toyota to its first finals appearance only to lose to the Harbour Centre Portmasters in the pivotal fifth game in their best-of-5 series.
during the championship series, basketball analysts were very aware of his coaching mystique that some believed he can pull off an upset against the mighty Red Lions.
In 2012, at his last year at Letran, he led the team with a finals appearance, but lost again to Red Lions, this time coached by Ronnie Magsanoc.
A year later, he was named coach of the youth team and formed a formidable lineup composed of future basketball stars like Kerby Raymundo, Enrico Villanueva, Cyrus Baguio, Yancy de Ocampo and others.
[11] In 2024, Alas was hired as a deputy coach (Associate HC) for the Ateneo Blue Eagles under Tab Baldwin.
He is married to Liza Alas (née Platón), a hotel manager and has four sons: Kristoffer Louie, Kevin, Kenneth, and Kieffer, all of whom are inclined towards basketball.
Some of his coaching idols are Larry Brown, Phil Jackson, Dean Smith, John Wooden, and Mike Krzyzewski.