The Betting Experiment. What Can I Do With Twenty Bucks?

So I thought I'd conduct a little experiment over the next couple of weeks, and then expand it if it works, and can it if it doesn't.

I'm starting with $20. I'm going to have a bet in each race in Sydney every Saturday, unless a race just has too many options for winning, in which case I will miss that race. I will also have a quaddie each weekend. However, the maximum I will spend on one race will be $2.
By doing this, I will see if I can make any money without actually losing hundreds of dollars if it doesn't come off. I am also going to avoid the big bets to chase money already lost, and see if I can maintain a cunning kit by doing so.

This may not last long, but I will see how I go.

So today I have outlaid my $20 into my account, though I have only spent $16 of it.
Here were my tips and results:

Race 1: 1. Streaking Comet. Fixed Odds $1.90. Bet $2
Result: Won.

Race 2: 2. Lucripetous. Fixed Odds $2.40. Bet $2.
Result: Won. 

Race 3: 2. Follonica. Fixed Odds $6.50. Tipped by Brendan Moore. Bet $2.
Result: led at the turn but overrun for 5th. 

Race 4: 6. Field Marshall. Fixed Odds $3.80. Tipped by Mark Burns. Bet $2.
Result: Won. 

Race 5: 3. Mic Mac. Fixed Odds $6.50. Bet $2.
Result: finished six lengths behind the $1.30 favorite Rain Affair. 

Race 6: No bet. Coudn't choose between Eurozone, Watabout and Bull Point.
Result: Eurozone by just over a length. 

Race 7: 10. Let's Be A Star. Fixed Odds $10.00 & $2.90. Tipped by Kevin Moon. Bet $1 each way.
Result: mid field, never in it. 

Race 8: 10. Reunite. Fixed Odds $12.00 & $3.50. Bet $2 on place.
Result: Good run for 3rd. 

Quaddie: $2 for 8% of total dividend.
Result: got first two legs, Prince Cheri flew home late for 3rd in the 7th. Eigelstein 2nd and Reunite 3rd in 8th. 

Initial starting point: $20.00.
Today's outlay: $16.00.
Account at end of day : $26.95.