WA TAB is the only one that I know of & for some reason they delete the prices as each race has started .
These prices come from GTX.

It astounds me why online newspapers have a sport section but dont replicate their pre-post markets as shown in their newspapers.

They have share market movement info & prices as per newspaper , whats wrong with racing info ? , after all, it is well reported to be a multi million dollar industry also.

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Cheers.