On the humid baseball diamonds of Florida, the players and coaches knew Michael Walsh only as “Red.”

In the 1990s, he started as an intern for the Yankees, running players around the bases and throwing fly balls to the likes of Derek Jeter. It wasn’t long before the team’s owner, George Steinbrenner, brought him on full-time to handle logistics. For seven years, he flew everywhere with the Yankees, arranging meals and hotel rooms. He attended nearly every game.

“Those were 18-hour days, but I loved it,” he said in an interview last week.

These days, the name “Red” is synonymous with another function. Need a ticket to sold-out game? Call “Red.”

Mr. Walsh works as a scalper, but he prefers to call it “corporate hospitality.”

“I’m not on a street corner of Yankee Stadium selling tickets,” Mr. Walsh, 36, said. “I try to deal with high-end clients, the corporate events.”

After seven years working for the Yankees, it was a natural follow, he said. He gets to see baseball games and talk to players, but now he makes money.

His clientele is largely well-off businessmen. In order to get around the state’s anti-scalping law, he offers his customers package deals: These range from a ticket with dinner at a bar near Madison Square Garden for $100 to sideline seats with pre- and postparties that feature ice sculptures, linens, and guest speakers at $5,000 a person.

In the course of a year, Mr. Walsh attends most major sporting events on earth: from the Super Bowl to the World Cup, the Final Four to the Olympics. This week, he has been attending the NCAA men’s basketball championship and as of today he is in Augusta, Ga., for the Masters. He also sells package deals to see live concerts and Broadway plays.

With Governor Spitzer considering an end to the state’s anti-scalping law and both New York baseball teams entering the season as defending division champions, Mr. Walsh said it’s a good time to be in business.

Last month, Mr. Spitzer said in an interview with the New York Post that he thought tickets should be sold in a free market. The current law, which expires in June, allows state-sanctioned brokers to charge a 45% mark-up on the ticket price.

Mr. Walsh, like thousands of others who sell tickets and package deals for a living, has his business, Golden Platter Sports, headquartered out of the state to get around this. The son of a judge and grandson of a state Supreme Court judge, Mr. Walsh knows the law. It simply does not prevent businessmen or a season ticket-holder with a spare seat from selling tickets, he said.

The real change to be expected with the end of the anti-scalping law, which was originally created to protect Broadway theaters, would be regulation. The city and state could collect untold sums on what is now mostly a cash business, he said.

A sports fan from birth, he said he doesn’t see anything wrong with his line of business. He connects sports enthusiasts with their sports, he said.

“This is the best city in the world for sports,” Mr. Walsh said. “Next year, with the all-star baseball game and the opening of a new stadium, it’s only going to get better.”

Mr. Walsh has an office at the Empire State Building, but he spends a lot of time across the street at Foley’s, an Irish bar that has become hallowed ground for some baseball fans.

The owner, Shaun Clancy, has covered the interior with memorabilia. There are 1,200 baseballs in cases with signatures that range from Mickey Mantle to mayors Koch, Giuliani, and Bloomberg.

Mr. Walsh brings Mr. Clancy objects from the games he attends around the country, and when someone wants a ticket, Mr. Clancy said he has two words of advice: Call “Red.”