This is not something new anyway, Kerry Packer used to win and lose tens of millions. He didn't have any edge, just was lucky and unlucky:
http://www.thegoodgamblingguide.co.uk/spotlight/players/kerrypacker.htm
He also liked to win, especially at gaming tables around the world, where tales of his successes, losses and extraordinary tips are legendary. He reportedly lost £8m playing blackjack in London in 1987, then won £10m at the same game in Las Vegas eight years later. Tales of tips to hostesses and waitresses of £50,000 also abounded.
...
Legendary Status
Mr Packer's legendary status as a high stakes gambler came to the fore when he took Las Vegas' MGM Grand for $26 million playing blackjack for $200,000 a hand, six hands at a time. It was this big hit and run style that actually got him barred from stuffy Vegas joints because they just couldn't take the action.
Mr Packer was also reported to have suffered the biggest losses ever sustained in the UK in September 1999, dropping £11m ($16.5m) at Crockfords casino in London. However at that time such sums were only a tiny fraction of the wealth of the owner of Australia's Nine television network, estimated to be around $8bn.
More $20 million losses have been reported but there are also tales of incredible generosity, including a $100,000 tip to dealers and waitresses and loans to fellow gamblers whose repayment he refuses to accept.