Marc Leishman (40-1) skipped Pebble Beach and I see that as a positive as four days around Riviera can certainly be taxing on the mental side. There are very little easy holes especially as you go deep into the back 9 and his freshness might just count for something here. His results here are a shade inconsistent with his best finish coming back in 2016 in 5th place. He has never arrived here in the top 15 of the world though and is no doubt becoming a more complete golfer. He is not afraid to win and I see these battle royales on these courses as right up his alley. Australians have an excellent record in this event with many citing similarities to their courses back home. Mickelson is half his price and Casey a good 12 points shorter in the market and that seems a bit unbalanced to me.

Marc Leishman - 1.25pts e/w @ 40/1

Shot shape is always important around here and Jimmy Walker (90-1) has the ability to move the ball both ways. There is no doubt this could be an ill fated decision but stake will be low enough. He has suffered badly with illnesses over the last 12 months and although this might be a bit early to get back involved, this is a course that certainly suits. With two top5 finishes and a further 3 top 20s he certainly knows how to score around here. Buoyed by a return to form last week with a top 10 at Pebble Beach he is worth a speculative play in my book. There was little else in the way of value in the field for me this week. It isn't an easy week to narrow down selections as plenty have lively chances. I've picked out a few juicy numbers that I'd rather side on instead of the favs.

Jimmy Walker - 0.75pts e/w @ 90/1

Thomas Pieters ticks many boxes here and although it is somewhat of an obvious play I expected him to be shorter in the market this week. He won the NCAA individual title here at Riviera back in 2012 and finished 2nd to Dustin here last year on debut. Course form isn't everything obviously and although Pieters has negatives regarding the mental side of the game he certainly retains the ability to win one of these high profile events.

The price tempts me more than anything. 50/1 fading a little as I write but the Belgian is a very talented sort and given this is a fairytale course for him he must have every chance of playing well. Doubts remain about how well he can hold it together once things start going a little pear shaped but I do think one of these weeks he will spread eagle the field early doors and coast to victory.

Thomas Pieters - 1.5pts e/w @ 50/1