Kai Sallas got to flash a double shaka on the victory stand at the Steinlager Shaka Longboard Series yesterday.

Sallas pulled off an unprecedented double victory, winning both the longboard pro-am division and the stand-up paddle (SUP) division.

The contest was run in 1- to 3-foot waves at Kewalo Basin.

"I don't even know how many heats I had to surf — I lost count," Sallas said. "It was back-to-back (heats) all day. It was a hard day, but a good day."

The Steinlager Series started last year, and Sallas is the first competitor to win the pro-am and SUP divisions on the same day.

"My main focus is on the longboarding, but I like to do the (SUP) as something extra," said Sallas, who is 27 and resides in Waikiki.

The pro-am division featured more than 30 of the state's top longboard surfers. Sallas won it with a style that was equal parts smooth and radical.

Midway through the 20-minute final, he found a right-hand wave and completed two precise carves before transitioning to a nose ride. The judges rewarded him with a 9.0 (out of 10).

"I kind of snuck into that wave, and it turned into a smoking right," Sallas said. "It lined up all the way and I tried to make good use of it."

Moments later, he completed similar maneuvers on a left-hand wave and received a score of 8.5. His total score of 17.5 was enough to win the $1,200 first-place check.

Bonga Perkins placed second with a two-wave score of 13.3. He was hampered by a sore right knee in the final.

"No excuses, that's not the reason why I lost," Perkins said. "I was feeling good all day, and then I just wrenched it in the semifinals."

Koa Enriquez placed third and Duane DeSoto was fourth.

After a 10-minute break, Sallas paddled back to the waves to win the SUP division.

"I basically went out to have fun in the (SUP)," Sallas said. "I tried to surf it like a longboard, but I didn't think I had a chance."

Interestingly, Sallas said competing in the SUP division helped his surfing in the longboard pro-am final.

"When you switch from a (SUP) board to a longboard, the longboard feels a lot lighter and shorter," he said. "It feels like you can turn it way easier."

Sallas' longboard was 9 feet long; his SUP board was 10-3.

Noland Martin placed second in the SUP final, DeSoto was third and Perkins placed fourth.

Yesterday's contest was the third of five stops on the 2008 Steinlager Series. Nanakuli's Kamu Auwae placed fifth yesterday, and is still the leader in the overall standings of the pro-am division.

The age-group amateur divisions are scheduled to run today at Kewalo Basin.

The next event in the series is scheduled for July 19-20 at Ala Moana Bowls.