Cheltenham Festival Day 4 Market Movers: 50/1 Gold Cup selection to spring a surprise

• Sire Du Berlais won yesterday at 22/1 having opened 66/1

• Hewick fancied for an upset at 50/1 in the Gold Cup

• This column has been profitable all three days

Huge 50/1 gamble in the Gold Cup

Most Backed: Hewick, 15:30 Gold Cup

The Gold Cup is without doubt the biggest race of the day, arguably the Festival, where Golpin Des Champs will be looking for Festival redemption.

Willie Mullins' horse is the clear market leader at 2.506/4. although last year's winner, A Plus Tard, will be very popular with Betfair ambassador Rachael Blackmore on board once again.

Read her exclusive thoughts on her Day 4 rides here.

Yet away from the top of the market, today's most backed horse is Hewick at 51.050/1 on the Betfair Sportsbook.

Despite the soft ground being an unknown, the eight-year-old has a Grade 1 to his name, having won at Far Hills in the US. He looks to be a progressive chaser having won the staying event at Sandown, and Betfair punters are keen for an upset in the Gold Cup.

Blackmore popular once more

Biggest Mover: Ascending, 13:30 Triumph Hurdle

Having opened as big as 26.025/1, Henry De Bromhead's Ascending has been backed into 11.010/1.

With Rachael Blackmore in the saddle, the four-year-old holds a firm chance in the Triumph, having finished second on hurdling debut at Leopardstown back in December.

Ascending finished four last time out Leopardstown in a Grade 1 when at 34.033/1, only being beaten by three Mullins horses. He blundered the last, which hindered a strong finish, but he wasn't going to improve on his position either way.

However, Betfair punters are keen to back Blackmore to add another victory to her list this week, believing Ascending can only build on that performance.

Mullins' horse unfancied in the Gold Cup

Biggest Drifter: Stattler, 15:30 Gold Cup

While Hewick has proven popular with the punters, Stattler has been frozen out. Having opened around 10.09/1, the eight-year-old has been easy to back, drifting out to 19.018/1.

Despite success when winning the National Hunt Chase at Cheltenham last year, he couldn't get near stablemate Galopin Des Champs over at Leopardstown last month.

Stattler finished eight lengths behind the Gold Cup favourite, and plenty of punters firmly believe he won't be reversing that form this afternoon. He does relish softer conditions, which he will get, but despite that, he's rather unfancied in the market.