Mohammed al Habsi clinched the top honours in round six and a runner-up place in the next round in the Mini Max category to lead the charge for the hosts.
Mohammed timed 9m53.914s in round seven to settle for second place after having won the previous round in a time of 11m52.326s.
His elder brother, Shihab al Habsi, was a bit unlucky in round seven on Saturday, missing the podium by a narrow margin, after finishing runner-up in the previous round in the Junior Max category.
Shihab clocked 9m15.298s to be pushed to fourth place by round-six winner Lachlan Robinson (9m15.240s).
Tehmur Chohan won the race in a time of 9m14.775s. Robinson had won round six in a time of 11m40.093s after 12 laps in a race in which Shihab clocked 11m44.238s to bag a second place.
Abdullah al Rawahi, the most experienced driver from the hosts' stables, took the third place in the Max category on Saturday with a time of 11m06.995s, a place higher than what he achieved in round six when he timed 13m34.044s. Amna al Qubaisi won the race seven in a time of 11m06.155s.
On Friday, Pasqual Pook had won the first place in the Max category (13m32.611s). Hussain Umid Ali was on top in the DD2 category on both the days, winning the Saturday race in 10m48.074s. He had won the earlier round in a time of 13m38.411s. In the Micro Max category, Georgie Zouein won both the rounds.
Meanwhile, in the fourth round of the Bambino category for competitors aged between five and eight years, Oman's Abdulwahab al Habsi, youngest of the Habsi siblings, won the first place, while his countrymate Adam Awan finished third.
Organised by the Al Ain Raceway, the 2016-17 championship comprises 13 rounds with round eight and nine scheduled to be held in Al Ain on February 3-4.
The concluding round 13 will also be hosted by Al Ain Raceway on April 7-8, while Al Forsan will host the tenth and 11th rounds followed by a round that will be organised at the Yas Marina circuit in Abu Dhabi, UAE.