The first exchange-wagering site in the U.S. is expected to be launched on Tuesday as scheduled in New Jersey, though activity on the site will likely be limited in the first few days because of a paucity of live racing signals and the narrow reach of the operation.

R.D. Hubbard is now the sole owner of Ruidoso Downs in New Mexico after buying out the interests of Ed Allred and Bruce Rimbo, the track announced Monday. Hubbard had owned 72 percent of Ruidoso Downs, which he first bought into in 1988.

Ruidoso is the home of the prestigious All American Futurity for Quarter Horses.

Hubbard’s grandson, Shaun Hubbard, has been the general manager of Ruidoso since 2012 and will now also take on the role of track president. Ruidoso opens its mixed meet for Quarter Horses and Thoroughbreds on May 27.

ARCADIA, Calif. - Trainers Jeff Bonde and Javier Sierra were fined $500 recently by Santa Anita track stewards for medication violations.

Bonde was cited after Tripski tested in excess of the permitted level of the corticosteroid Betamethasone after a third-place finish in the 10^th race on March 26.

Sierra was fined after Gutsy Ruler, who finished second in the fourth race on March 6, tested positive for the prohibited medication Fulmethasone, also a corticosteroid.

Lezcano will sit out three days

The race portion of a three-plus-hour broadcast of the Kentucky Derby on NBC Saturday posted a 9.3 overnight rating, according to the television network, down 14 percent compared with the overnight rating for the same portion of the broadcast last year.

The broadcast, which ran a half-hour beyond its slotted broadcast window because of a long delay in getting horses to the starting gate, had a 21 share, down 12.5 percent from the share last year. Share measures the percentage of televisions in use that are tuned to a broadcast.

Average daily all-sources handle declined modestly compared with 2015 during the winter-spring meet at Hawthorne that ended April 29, but gross handle for the meeting was down sharply because of a reduction in race days.

Churchill Downs and Television Games Network have not been able to reach an agreement allowing TVG to broadcast the track’s races live on its flagship network or on its website for this year’s spring meet, officials for both sides said this week.

Shares in Churchill Downs Inc., which will host the Kentucky Derby on Saturday at its flagship Louisville track, have dropped more than 10 percent since the company announced its first-quarter earnings on April 28, the first double-digit decline in the company’s stock since the recessionary times of 2008.

Churchill Downs has not authorized Television Games Network to broadcast the track’s races live on its flagship network or on TVG’s website for this year’s spring meet, an official for TVG said on Wednesday.

Handle on U.S. races in April was up 8.5 percent, according to figures released Wednesday by Equibase, continuing a five-month trend in which handle has risen compared to the same months in 2015.

Handle during the month was $929.1 million, up from $859.5 million in April last year. This year, April had one additional weekend date than in April last year, and this year, the Florida Derby was held in April rather than March, as it was last year.

Godolphin announced Tuesday night at the Derby Trainers Dinner in Louisville, Ky., that it is establishing the Thoroughbred Industry Employee Awards to recognize excellence and achievement for grooms, foaling crews, exercise riders, office staff, and others who work on both farms and racetracks in the United States.