 In order to circumvent the rules, a third team, Air21 was involved in the trade, which ultimately sent Dimaunahan to Air21.After playing 2 seasons with the Barako Bull Energy Boosters, he was signed by the Alaska Aces as a free agent during the 2011 Governors Cup.In 2012, while with the San Miguel Beermen, he was one of five players suspended for taking place in a Basket-Brawl involving the Beermen and the entire bench of the AirAsia Philippine Patriots.