bet365's Pick 6 Challenge is up to $100,000 this Saturday 

Leading bookmaker bet365 are putting $100,000 on the line for any logged-in member who correctly selects the winners of six specified races across the Caulfield and Rosehill meetings this weekend. There are also consolation prize pools of $10,000 to be split amongst those who tip five winners and $5,000 for those who 'only' pick four. 

Last week they had one customer pick five winners, receiving the sole share of the $10,000 consolation prize. 

The six featured races are outlined below with the R&S team providing pre-race previews to give you a head start on the form. 

Caulfield Race 5 - Stow Storage Autumn Classic @ 2.30pm - 1800m 

Immediacy (2) is unbeaten from two starts and looks capable of measuring up here. He did well to beat the older horses over this trip at Sandown-Hillside at just his second outing. Suspect he runs very well. Justaboom (10) has won her past two, too smart over this track and distance last time out. Can push forward and prove hard to get by again. United Kingdom (8) started prohibitive odds on debut but got the job done. Only a narrow win but promised plenty and oozes upside. Will be charging late. Caracas (5) was a strong maiden winner over a mile at Pakenham last time, getting stronger the further they went. Can measure up. Socks Nation (9) continues to race well and has a bit more experience than a few of these.

Rosehill Race 5 - Parramatta Cup @ 2:50PM - 1900m 

Tough race! Multiple Group 3 winner Diamil (6) resumed with an eye-catching third over 1600m at Randwick with the 61kg on February 10. Has a much better second-up record and relishes the sting out of there ground. Expected to race closer from the gate and will take stopping. Group 2 winner Zennzella (13) returns from a let-up after savaging the line late when third over 2200m at the Gold Coast MM Trophy on January 13. Since fitted with a solid 1207m trial win and has residual fitness on her side. Leading player. So United (11) returns from a 42-day let-up and chasing a hat-trick today. Sat on the speed from the wide gate and showed plenty of tenacity when a head winner at the Gold Coast Mm Trophy over 2200m on January 13. Not far away when fifth in a recent 1050m trial on February 8. Almania (16) anchored with the 59kg when returned for a plugging sixth over 2000m at Randwick on January 27. Kept ticking over with a subsequent trial at Gosford. Keep safe with the big drop in weight.

Rosehill Race 6 - Yarraman Park Handicap @ 3.25pm - 1400m 

Marquess (13) no match behind Amor Victorious when resumed with an even second at Randwick over 1600m on February 10. Strips much fitter now and goes even better second-up on the limit weight. Can get across from the sticky gate and prove hard to run down. Group 3 placegetter Robusto (11) has race fitness on his side and drops sharply in weight after finishing a sound second over 1500m here on February 3. J Mac is back on today and watch for him rattling late. Kinloch (6) tough gelding in career-best form. Stormed home over the top of his rivals when a gutsy 0.8 len winner over 1400m in the LR Sunshine Coast Cup on January 27. Reunites with Rawiller and handles the going. Palmetto (3) Group 3 placegetter resuming. Came to the end of his prep when seventh in the The Gong over 1600m at Kembla on November 25. Looks well in with Molly Bourke's 3kg claim and has a decent fresh record. Gets the right run and fitted with two trials in readiness for this.

Caulfield Race 8 - Blue Diamond Stakes @ 4.15pm - 1200m 

Lady Of Camelot (13) comes down from Sydney having won the G3 Widden Stakes in very fast time, posting a rating that doesn't need to be improved upon much to be winning this. She maps perfectly here, the stable are having a 2yo season to remember and she can take this out. Coleman (4) remained undefeated with a dominant win in the Chairman's Stakes. No doubting his class but 1000m up to a fast 1200m off four weeks is a little niggle. Bodyguard (3) resumed and won the G3 Blue Diamond Prelude with a strong run from the back. Strips fitter and draws well here. Big chance. High Octane (8) had no luck whatsoever in the lead-up when hard in the market. Drawn out now, he can run a much better race. Stay Focused (5) looks a big price coming through the main lead-up where he ran very well.

Rosehill Race 8 - Precise Air Hobartville Stakes @ 4.35pm - 1400m 

Spring Champion Stakes winner Tom Kitten (1) drifted back on resumption before warming up late when a sound sixth over 1200m in the G3 Eskimo Prince Stakes at Randwick on February 10. Meets these on level terms today and should get the right tempo to launch late. Looks set for a good prep. Group 1 placegetter Encap (2) continued where he left off last prep when resuming with an eye-catching third over 1200m in the G3 Eskimo Prince Stakes at Randwick. Has a good record this trip and should get cover from the sticky gate. Celestial Legend (7) lightly raced colt given plenty of time to mature. Resumed with an even fifth along the inside over 1200m in the G3 Eskimo Prince Stakes at Randwick. Will keep improving and looks to have genuine top-three claims. Fukubana (11) has a fitness edge over most of these and deserves his shot in this company. Returned good figures when winning at Doomben last start and gives every indication of running a strong 1400m. Big market watch.

Caulfield Race 9 - Oakleigh Plate @ 4.55pm - 1100m 

The 50kg for King's Gambit (15) is too hard to ignore, if he brings his best. The Roman Consul win before a spell was very strong getting up the inside and that may be the plan again here from barrier one. He's still unfinished but is clearly very talented and did win dominantly on debut at this track. Asfoora (2) was heavily backed in the G2 Rubiton first up but no match for Kallos. She typically improves second up and her form around Imperatriz last time in reads very well. Has to carry 57.5kg as a mare which will be tough. Sghirripa (4) is flying, winning the G3 Standish dominantly last time. Can measure up. Benedetta (8) is a nice mare resuming. Gets in well enough at the weights and will be hard to hold out. Recommendation (7) is fit and firing, racing well and maps nicely. Plenty of other chances.