Scott Heinrich runs the rule over the weekends racing and brings you all the best bets with UBET.Winterbottom StakesWestern Australias premier open-class sprint, The Winterbottom Stakes, is a race in two according to betting. In the orange-and-green corner we have the 2014 Darley Classic winner Terravista: in the red-and-yellow corner, the reigning Darley champ Malaguerra.Im with one of those runners, however Im not convinced the chances stop there. Lets cover the two favourites first, though.Malaguerra is my selection to win the race, mostly because I cant find reason enough not to tip him.For starters he is a top-class racehorse, as we saw at Flemington, but everything else is in his favour: the right trip (six from seven at 1200m), firm track, and Ben Melham should be able to get a nice sit just behind a good speed from gate one. If he gets an opening in the Ascot straight, he should be too good.Terravista was very good first-up off a lengthy break when finding only Redzel too sharp during the Melbourne Cup carnival. Hell strip fitter and is an obvious danger, but at the price Id prefer to be with the younger horse who may still have some upside.The locals did well last week in the Railway Stakes but these local sprinters look a rung or two below the standard set by the interstaters, and two other visitors of note are Takedown and Sheidel.Takedown is very interesting dropping back to what is certainly his best trip. He was good over further at Flemington and is another who has conditions to suit on Saturday. Might need luck from stall eight - that said, the past four winners of the Winterbottom have come from barriers 8-10 - but looks well worth an each-way ticket.Former WA mare Sheidel - who is nine from 10 at Ascot! - ran very well for fifth when leading them up in the Darley. She doesnt have to lead here and is a definite danger at a price under another fine Perth export, Damien Oliver.Recommended bet: Malaguerra to win @ $3.30 with UBET but include Takedown and Sheidel in all exotics.Best BetRosehill Race 9, No.6 Firsthand @ $4 with UBETThis four-year-old is building a very tidy record with three wins from just four starts.Lowered the colours of the smart Prince Of Brooklyn at just his second start prior to a spell, and last start beat another handy galloper in Sugar Bay Leonard when racing second-up.Crucially has race fitness on his side on Saturday in a field comprising six first-up horses. Drawn to get a sweet run on, or just behind, the pace and appeals as a very strong hope.Over the oddsMoonee Valley Race 6, No.2 Beluga Blue @ $7.50 with UBETA stakes-class mare who has returned to racing in excellent fashion, having won two from two in Adelaide since resuming from a spell.Beaten just three lengths in a Group I four starts back - and was then just behind the classy Chabaud in a Group III - yet here she is in a Benchmark 84 just 2.5kg above the minimum after Ben Allens claim. And is a mare in form!Looks massive overs and will be hard to hold out.Lay of the dayMoonee Valley Race 1, No.1 Invincibella @ $2.10 with UBETUndoubtedly the class runner but one or two question marks over this one.Is having her first run at Moonee Valley and first run over the mile - and she must also hump top weight in a small field where each of her rivals have won at either their most recent start or two runs back.Can win but shouldnt be entertained at such a short price.Under the oddsMoonee Valley Race 7, No.8 Little White Cloud @ $5 with UBETOne remarkable racehorse - and one remarkable training effort to get this comeback galloper to win at Flemington in his first start for three-and-a-half years.Back in 2013, Little White Cloud was a Group-class three-year-old, running second to the to