cryptogon.com

Johnson did not miss the math. For example, at the Trop, he was willing to play with a 20 percent discount after his losses hit $500,000, but only if the casino structured the rules of the game to shave away some of the house advantage. Johnson could calculate exactly how much of an advantage he would gain with each small adjustment in the rules of play. He won’t say what all the adjustments were in the final e-mailed agreement with the Trop, but they included playing with a hand-shuffled six-deck shoe; the right to split and double down on up to four hands at once; and a “soft 17” (the player can draw another card on a hand totaling six plus an ace, counting the ace as either a one or an 11, while the dealer must stand, counting the ace as an 11). When Johnson and the Trop finally agreed, he had whittled the house edge down to one-fourth of 1 percent, by his figuring. In effect, he was playing a 50-50 game against the house, and with the discount, he was risking only 80 cents of every dollar he played. He had to pony up $1 million of his own money to start, but, as he would say later: “You’d never lose the million. If you got to [$500,000 in losses], you would stop and take your 20 percent discount. You’d owe them only $400,000.”

In a 50-50 game, you’re taking basically the same risk as the house, but if you get lucky and start out winning, you have little incentive to stop.

So when Johnson got far enough ahead in his winning sprees, he reasoned that he might as well keep playing. “I was already ahead of the property,” he says. “So my philosophy at that point was that I can afford to take an additional risk here, because I’m battling with their money, using their discount against them.”

According to Johnson, the Trop pulled the deal after he won a total of $5.8 million, the Borgata cut him off at $5 million, and the dealer at Caesars refused to fill the chip tray once his earnings topped $4 million.

“I was ready to play on,” Johnson said. “And I looked around, and I said, ‘Are you going to do a fill?’ I’ve got every chip in the tray. I think I even had the $100 chips. ‘Are you guys going to do a fill?’ And they just said, ‘No, we’re out.’”

He says he learned later that someone at the casino had called the manager, who was in London, and told him that Don Johnson was ahead of them “by four.”

“Four hundred thousand?” the manager asked.

“No, 4 million.”

So Caesars, too, pulled the plug. When Johnson insisted that he wanted to keep playing, he says, the pit boss pointed out of the high-roller pit to the general betting floor, where the game was governed by normal house rules.

“You can go out there and play,” he said.