Dwayne Dunn has signed off for the season with a slender lead in the Melbourne jockeys' premiership but appears resigned to being overhauled in the title race.

Dunn will miss the last three metropolitan meetings of the season because of a careless riding suspension, but kept his nose in front in an enthralling premiership battle with a winning double at Flemington on Saturday.

Craig Williams and Damien Oliver are two wins behind Dunn after Oliver rode a winning treble on Saturday, while Williams added to his season tally with a win on smart three-year-old Supido.

"It keeps me alive for one more minute, I suppose. As long as they don't tease me and take it right to the wire," Dunn said after his final ride for the season when unplaced on Stratigraphy in the Flemington Event Staff Handicap, won by Oliver on Abbasso.

"Hopefully they put me away sooner rather than later.

"It's been a great season and I've taken plenty of positives away from it.

"I've improved in what I'm doing and hopefully I can take it forward into the spring."

Oliver started the day with victory on two-year-old Jalan Jalan before Dunn took centre stage mid-meeting with a back-to-back double on the Peter Moody-trained stablemates Il Cavallo and Herstory.

Williams responded when the Mick Kent-trained Supido resumed with a strong win in the Dalray Handicap (1100m) before Oliver closed the meeting in style with two more victories on the Chris Waller-trained pair Abbasso and Bagman.

Between the three premiership contenders they won six of the eight races they were represented in on Saturday.

All three say the close premiership battle is great for racing.

The remaining meetings are at Bendigo on Wednesday, Caulfield next Saturday and Ballarat the following day.

"It can be hard to string a few wins together at this time of year with the wet tracks and with the apprentices getting their opportunities as well," Oliver said after the second of his three wins on Saturday.

"Even though Dwayne is going to miss the last three, he's still going to be hard to catch. So I think it's going to go down to the wire."