Glen Boss won't admit to thinking too much about winning his first ever jockey's championship - but that may be because he doesn't have to.

Boss goes into Wednesday's Sandown meeting 17 wins clear of reigning titleholder Luke Nolen and with strong prospects of increasing what already looks to be an unbeatable lead.

"You try not to think about it, there's more important things," Boss said.

Boss, who has rides at Sandown for a selection of Victoria's top trainers, nominated the Ciaron Maher-trained Sayangku as his ideal start to the meeting.

"Ciaron rides him in his work and he tells me that's because the horse is going so well," Boss said.

Sayangku runs in the Mitavite Handicap (3000m) against opponents who are likely to be next seen over jumps.

"His form says he can keep going which will be the main requirement in this one," he said.

Sayangku is a $3.50 second favourite behind the Eric Musgrove-trained Grand Ducal.

Boss combines with a runner prepared by in-form trainer Mark Riley in the Lister Handicap (1300m).

Riley has produced five winners from his last 10 starters and has high hopes for Champagne Shisha in a race that shapes as the most open on the program.

"No-one's going better than Mark at the moment so you have to give her a chance on the score alone," Boss said.

"But she seems a capable mare and it isn't a strong race."

Boss also rides Catered for David Hayes in the Hyland Race Colours Plate, Inabeauti in the Sportingbet Handicap (2100m), Ajeeb in the KS Envrironmental Handicap (1500m) and Spirit Of Soul in the Le Pine Funerals Handicap (1400m).