The juniors rode two laps of the 1.3- kilometre circuit with Dakota Sime an impressive winner.
She will advance to E grade next week after holding off Max Stella, who was second, and Sienna Stella in third.
Anita Watters was the only E grade racer this week so she started with D grade, which exploded on the second lap.
Watters rode a lonely 20-minute race, though she did stay ahead of at least one D grade rider.
Nick Connan, after being beaten by his son last week, went on the attack on the second lap.
The group broke up chasing him, and then reformed a couple of laps later missing a few riders.
A little over the halfway mark, the bunch caught Connan but it did not matter as he attacked with little over a lap to go and stayed away to take the win.
Baden Gray was second with Clinton Hort third.
C grade was a surging race with the pace changing dramatically as riders attacked, then slowed as they were caught, before another attack and increase in speed.
Even when Ron McArthur managed to get off the front for a few laps, the speed varied, as riders attempting to bridge slowed. The pace again picked up and closed the gap.
In the end it was a bunch sprint, which was won by Aron Barclay, with McArthur second and Steven Rouse third.
B grade also saw a number of attacks but this time it was small groups of two to four riders off the front and they where all brought back quickly.
The longer the race went, the longer the pauses between the attacks.
With half a lap to go, Jordan Dawson attacked but he was caught on the finishing straight by John Bouwknegt, who took the win, with Dawson second and Kurt Harmer third.
The attacks came thick and fast in A grade.
After two laps there were three riders off the front before the next lap saw five riders chasing.
Two laps later there were eight riders off the front, with a gap of over 20 seconds.
It looked like the race was over for the chasing bunch, then suddenly they were all back together.
Next lap, there were two riders off the front, three more riders bridged, before the bunch chased them down.
This was the pattern for the rest of the race; riders would attack, get a gap, the chasers would bridge across, then the bunch would chase them down.
In the end it was a bunch sprint won by Wade Longworth, with Nigel Stella second and Conor Leahy third.