May the best man win.

That's the attitude of Finn class sailor Andrew Murdoch as he heads into this week's World Cup regatta in Southern France.

Murdoch and fellow Kiwi Josh Junior head into the event needing to outdo each other to secure a spot in the New Zealand team for the Olympic Games in Rio.

Several other Kiwi crews are in a similar situation in other classes.

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Murdoch says it's not the first time he and Junior have gone head to head.

He says they're both sailing well at the moment so it'll be a case of who gets it right on the day.

The regatta gets underway tonight.