Here's how I figure the finish and margins will be as the animals cross the line for SHEPPARTON Race 8 this morning.
And also are Prices based on those finishing margins.

5 HARRY HAULAGE 0 $2.1
1 GUITAR HERO 2.6 $7.2
3 JIMMY DOUGLAS 2.9 $8.5
2 SPRING TO EXCEL 3.4 $10.6
6 BOOTMAKER 4.3 $16
8 PUMPKIN EYES 4.8 $20
4 MIRACLE MERC 5.2 $25
9 BLACK GUN BOY 7.1 $60

And going on this information, it seems unfortunately that this race has nothing that suggests there will be an OVERLAY.
That is the major problem I have because I spend ages going over a Race and feel that the time spent must be rewarded by having a bet.

The only possible bet would be an EXACTA of HARRY HAULAGE to beat numbers 1,2,3 but only if these animals are OVERLAYS.

Here's the Stayers race at TRARALGON Race 7 this afternoon

1 GALACTIC DIAMOND 0.0 $2.1
6 SHADOWLANDS 1.6 $4.4
2 WOOD 1.9 $5.2
4 DR. BILLY RAY 4.7 $20
5 CINDY'S DELORIAN 6.5 $40
8 GREYSYND UNITED 6.7 $50
7 ELSIE'S GOLD 7.9 $80

With the poor quality of these animals, anything other than picking first 2 home would be fruitless.
I think Exactas involving the top 3 selections for varying units should prove profitable.

1 - 2,6 for $5
2,6 - 1 for $3
2,6 - 2,6 for $1

Total $18

Had a play with GEELONG Race 4.
Its a 347 metre race and you would be kidding yourself if you could do better than pick more than just the winner.

3 POLLY'S CHOICE 0.0 $4.8
7 CAPTAIN MILO 0.2 $5.3
6 COULTA SALLY 0.7 $6.6
2 RIVERDALE LESTER 1.1 $8
1 REGAL CADET 1.4 $9.3
8 SO SAUCY 1.5 $10
5 DYNA ROSE 2.0 $12
10 ANGEL TY'S 3.6 $25

These margins I came up with will cetainly not be even close to the actual race results.
They are more an interpretaion of how it is easily possible for any dog to win this race and is mainly a race of Luck.
And the luckiest dog will be the one that leads.
Stay out if you can Gamblerholics.

The MEADOWS Race 3

5 TALON BALE likes to cut to the rails and that will give 6 SURE COOL every opportunity to lead even though it has drawn what seems a poor Box.
Even without that, it is quick enough to lead regardless.
The last little bit is the concern, but at the Odds, is worth backing.
If it don't lead then I have no idea who will win and if it does, then JODY JONES is the only one that may run it down.
I'll have $10 on it

6 SURE COOL 0 $2.6
3 JODY JONES 2 $6.8
8 DEMONSTRATE 2.1 $7
1 GO WILD FELP 2.8 $9.6
7 COOPER BALE 3 $11
4 ENZO BALE 4.2 $20
5 TALON BALE 4.7 $25
2 RITUALS 5.2 $30