The Pick Six form of wagering in which a betor must pick the winners of six straight races on a card, is catching on throughout the nation and may be introduced in Maryland.

Arlington Park in Illinois is the latest track making a request to its racing commission for the right to introduce that form of wagering at its next meeting.

The Pick Six payoff in a recent race in Hollywood Park in California, which introduced the gimmick, was more than $340,000 to a bettor. The handle at Hollywood has gone up more than 25 percent with the Pick Six as an attraction. The attendance, a declining figure at many tracks, also has gone up.

Chick Lang, Pimlico's general manager, replied to a question on the Pick Six with, "Anything that excites the patrons is a good sign. If there are no problems with the technology and no interruptions with the reasonable cash flow necessary at any track, we would look favorably upon it."

Dave's Friend, the only horse allowed to race in Maryland with Lasix, despite not having bled on the track after a race, heads a field of six top sprinters in Saturday's $25,000 added Terrapin Handicap at Bowie.

Robert Beall, owner and trainer of Dave's Friend, sought and received an injunction in Prince George's County Circuit Court that enjoined Maryland officials from preventing the use of Lasix on his winner of more than $300,000. The presiding judge ruled that should Dave's Friend run without the benefit of Lasix it would present a danger to both the jockeys and horses in the race.

The Maryland champion will carry 128 pounds and is the prohibitive overnight favorite.