1) The USA market offers wagers at $1.30 on most ADW sites to match the HK pools (exchange rate) which is a $10 bet over there. So a quiniela paying $30 means the bet would have cost you $2.60 in the USA, but yes your basic math is right. The size of your bets will never make a dent in the HK pools because they are so massive handle wise
Also in HK they have a quiniela place wager (or omni here) meaning your two horses need to finish 1st and 2nd or 1st and 3rd or 2nd and 3rd to cash. The payout is much lower than the real quiniela.
2) Again you are technically right, but every bet would be a $1.30 straight bet. So if you played a $13 straight super, and it hit, you would get the payoff 10x the amount posted in HK. Some ADW's however do not allow Superfecta wagering.
3) Most ADW's offer HK racing, however I do not know what restrictions your state has regarding it. I love wagering on HK and Australian racing, but I can't speak for the rest of the site users. HK is clearly light years ahead of the USA market.
4) Dividends are unofficial results and correct weight means the race is offical. They use odds such as 4.5 and not 9/2. So when doing the math, odds of 6.2 pays $62 for $10 HK dollars. The rough math here in the States would be the odds of 6.2 x 1.3 (again just rough math, not the exact payout due to breakage and other small tote conversion factors) to get close to what it will pay in the USA. Also, the place bet over there means the horse needs to show. It is Win / Show wagering for us fans in North America
The HK website in english
https://entertainment.hkjc.com/enter...ish/index.aspx
