NBA prospect Joe Ingles did little to impress visiting American scouts at the Sydney Entertainment Centre after his South Dragons were demoralised 106-72 by the league-leading Kings.

Ingles, 20, finished with 13 points and eight boards, but also committed six turnovers and had little impact as Sydney improved their league-best record to 21-3 and geared up for a shot at the championship.

In contrast the Dragons have now lost 11 straight games and are propping up the ladder with just four wins from 24 games.

Flashy young Kings guard Dontaye Draper, who also has his eyes on an NBA contract, did impress with 14 points, seven boards and seven assists to lead another balanced effort from the home side.

Mark Worthington top-scored with 18 points as the Kings cantered to one of their easiest wins of the season.

With scouts from NBA clubs Toronto and the LA Lakers on hand, both teams made a nervous start, shooting a combined 13-of-42 (31 per cent) from the field in a poor opening term that ended with Sydney leading 21-12.

Ingles, who is contemplating nominating for this year's NBA draft, was the main focus of attention but the presence of the scouts seemed to effect him as he tried to do too much in the early stages.

The Dragons showed some life after the first break, producing a 7-0 run to get within two points, but Sydney woke from their slumber and reeled off a blistering 18-3 run of their own to establish a 17-point buffer.

A Russell Hinder lay-up with just under three minutes left in the opening half gave the Kings a 44-24 lead and the contest was already over.

Sydney maintained a 20-point advantage to halftime and then put their foot on the Dragons' throat and ensured their would be no comeback in the third term.

With Draper pulling the strings, Sydney compiled a 28-19 quarter to stroll to a 77-47 three-quarter-time lead.

The final quarter was a formality as the Kings moved a step closer to the minor premiership.

Kings coach Brian Goorjian, who will also guide the Australian men's team at this year's Beijing Olympics, left Ingles out of his Boomers side for last year's qualifying series but said he was still in the frame for the Games.

He admitted, though, that the lanky guard is still a work in progress.

"(Dragons coach) Shane (Heal) is clearly trying to work him into the (point guard) spot and in all honesty from what I saw tonight there were some struggles," he said.

"He's got some work to do."

Heal won a championship alongside Goorjian in Sydney in 2003 and concedes he is finding it difficult to deal with the Dragons' lengthening losing streak.

While he rates the Kings among the title contenders, he sees defending champions Brisbane as the team to beat.

"It's hard coming to these press conferences after a game like that," he lamented.

"You play against a team like the Kings who do all those effort things and have so much confidence and they put their foot on your throat."