But it's an unfair comparison. As Wall Street investment bankers eat their ties for dinner, or, in the case of ANZ boss Mike Smith, consider alternative careers in farming, the walk of the market has rarely looked more random.

In fact, horse races are much more predictable.

Consider: unlike the sharemarket, the chances of your horse going backwards are remote. Likewise, it's practically guaranteed that the four-legged beasts won't trip over, nor will they bite their owners, bite their riders, bite each other, or demand more money from the gathered crowds before they cross the finish line.

You can now see that the differences between the equity market and the racecourse are stark, and where you'd be safer putting your money.

Nevertheless, four brave new contestants, have - to switch sporting metaphors - stepped up to the plate.

So how did they all go?

Once again it's the dartboard that impressed this week, with - thwack! - a genius and well-considered investment in Babcock & Brown Power, which doubled in value in one week.

All that glistered was gold, and our contestants have decided that the outlook for the precious metal looks bright and shiny.

The dartboard obviously had this in the back of its mind when it carefully selected - thwack! - junior gold play Ramelius Resources, up more than 40 per cent for the week.

And our second-best stock performance over the week was from another gold hopeful, Catalpa Resources, a shrewd selection that returned almost 70 per cent to Today presenter and "keen racegoer" Cameron Williams.

These speccy resource buys can really pay off as the share prices jump around off a low base but they can just as easily go the other way.

But solicitor Sandy Schmitzer's heavy bias to larger resource stocks failed to pay off, despite a solid return from mid-tier OZ Minerals.

Student Ellie Underwood was rewarded for ignoring the travails of the trust's parent and boldly investing in B&B Infrastructure, which surged by more than a third.

Our reader, Alex Rose, has had a slow start to the four-week battle. Her best performer was Pure Energy.