After graduating in elementary school, Alcano didn't proceed to high school due to financial problems. He then opted to play pool for a living.
Alcano's recognitions in the Philippines began with his performances at the 2000 Rising Stars Tournament. By the final, he was highly favored to win the title, yet in the final match (a race to 13), Alcano lost to Edgar Acaba by just a rack short, 13–12. Despite having a 12–7 advantage, Alcano missed while only three balls away. Acaba then returned to the table and won the needed 6 racks in a row to win the match and the title.
In 2002, Alcano began to make a name for himself, and began competing in major events in the US. He won five tournaments in the Joss Tour and was awarded Rookie of the Year for 2002 by azbilliards.com.
Coming in as an underdog, Alcano upset GermanRalf Souquet in the finals, 17 to 11 at the 2006 WPA Men's World Nine-ball Championship. ESPN commentator Gerry Forsyth said, "the only way to stop Alcano is to put a rattlesnake in his pocket, then ask him for a match" about Alcano's performance. He thus became the third Filipino to become World Champion, after Efren Reyes and Alex Pagulayan. In the November 2006 tournament, Alcano had been on the brink of elimination in group play before taking advantage of a soft break. He won just 1 of 3 group matches and scraped through as the 64th and final seed. Alcano then defeated local favorite Reyes and defending champion Wu Chia-ching in the knockout stages, proceeding to the final. For winning the tournament, Alcano won US$100,000 which is the largest first prize ever won in the world nine-ball championship.
In an attempt to defend his title at the 2007 World Nine-ball Championship, Alcano was bested in the last 64 by Daryl Peach of the United Kingdom who ultimately won the title.
On 11 December 2007, Ronato Alcano won the Philippines' 31st gold medal in the 24th Southeast Asian Games Men's 8-Ball Pool Singles at the Sima Thani Hotel Grand Ballroom.[2]
On 25 April 2008, Ronnie Alcano lost his title at the World 8-Ball Championships in Fujairah City, United Arab Emirates. Germany's Ralf Souquet won the $60,000 championship prize, 13–9 final score.[3]
During his early days of competing in the Philippines, Alcano was nicknamed "Calamba" which is a reference to his hometown in the country (see above). But when he started participating in US-based tournaments, some commentators mispronounced his last name as al-kay-no. Thus, the nickname "Volcano" was addressed.
