Tipsters have something else to think about this round with the launch of the Gauntlet sub-competition.

Pick one team you think will definitely win this weekend – and if they do win, you survive in the knockout competition for another week.

There is a catch, however. Once you have picked a team you can’t pick them again in subsequent rounds.

The overall winner of the Crows Gauntlet competition will win a 2015 guernsey signed by the Crows squad.

It’s not too late to get involved. Join now 

Round four was another tough one for fans in the official Crows Tipping competition.

Seven winners was the best anyone could manage. The weekly winner was Natalie Tiggeman, whoi will receive a $50 CROWmania voucher.

The major prize this year is a ten-seat corporate box at Adelaide Oval for Crows home games in the 2016 season.

Runner-up will receive two tickets to this year’s Club Champion event and the third-placed tipster wins a team-signed 2015 Crows Guernsey.

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

And the best tipster each round will received a $50 voucher from CROWmania.

It is easy to join. You just have to register and start tipping!

The Adelaide Crows will do the rest, including calculate winners, margins and ladders and email your results. You can even create your own competition for your workplace, friends or family.