Join our Chemist Warehouse Crows Tipping competition this week to be eligible to play the Gauntlet section of the competition and try to win a signed guernsey.

The sub-competition starts in Round Five and requires tipsters to pick one winning team each round, without tipping the same team twice.

It sounds easy but finding that one certain winner each week, week after week, is not easy. Last season hundreds of tipsters crashed out in the first round after a couple of upsets.

The tipster who survives the longest this season will win the Crows player-signed guernsey.

Click here to sign up for Chemist Warehouse Crows Tipping

The Round Three weekly winner was Adam Marchant, who was one of only six tipsters to select all nine winners. He will receive a $50 voucher from CROWmania.

This year’s overall winner will receive the use of a ten-seat corporate box (valued at more than $19,000) in the eastern stand at Adelaide Oval for every Crows home game next season.

Remember, it's not too late to invite friends and colleagues to join Crows Tipping. Away points are awarded even if you missed previous rounds, or forgot to enter your tips.

The runner-up in Crows Tipping will receive two tickets to this year’s Club Champion event.

The best tipster each round will receive a $50 voucher from CROWmania.

Signed Crows guernseys will be the prizes for the Gauntlet and Pick 5 mini-competitions.