Jockey Robert Pineda was fatally injured and two other jockeys hurt yesterday in a three-horse spill during the second race at Pimlico Race Course. Pineda died of head and neck injuries.

Pineda's brother, Alvaro, 29, was killed Jan. 19, 1975, when his mount reared in the starting gate before a race at California's Santa Anita track.

Robert Pineda, who was 25 and the father of two small boys, fell heavily when his mount, Easter Bunny Mine, stumbled over the already fallen Easy Edith, whose leg had snapped.

Pineda was run over by several of the trailing horses.

Rudy Turcotte abroad Easy Edith, was listed in fair but stable condition last night at Sinai Hospital with a factured collarbone.

Countess G. ran over the two fallen horses, throwing jockey James Thornton. Thornton was also hospitalized, reported with neck and chest injuries.

Another jockey, F.W. Kratz, was dislodged from the saddle when his mount Friendly Erma, hurdled the fallen Countess G. Kratz was only shaken up and rode again in the seventh race.

"When he (Pineda) fell, he was making a run from the right where a professional would be, on the inside saving ground," said John DiNatale, trainer of Easter Bunny Mine. "He was more than a good rider. He was a true gentleman - helpful, considerate and in every way a professional."

Pineda, who made his first start in 1973, had 3,370 mounts through May 1, according to statistics provided by the Daily Racing Form. He had 270 wins, 343 seconds and 362 thirds.His horses had earned $2,136,171.

At the current Pimlico meeting, Pineda, whose family comes from Mexico City and now lives in California, and ridden seven winners in 54 months.He had the mount Sir Sir in last year's Preakness Stakes at Pimlico and had been scheduled to ride Quiet Jay in yesterday's eighth race.

Pineda came to the Maryland racing circuit early last year with trainer Hubert (Sonny) Hine of California.

"I felt so lucky to get a rider of his disposition and class," said Joe Santer, Pineda's booking agent.

Pinedas death comes nearly 44 years to the day that the last jockey was killed during a Pimlico race.

Bernard (Buddy) Hanford was fatally injured May 4, 1933. He suffered a skull fracture when his mount, Apprehensive, stumbled as the field swung into the far turn. He was scheduled to ride Trace call in the Kentucky Derby two days later.

The last death of a jocky at a Maryland track was in the 1950s when Happy Witmer was killed at Timonium.

Easy Edith had to be destroyed and Easter Bunny turned up lame.

The 11-horse race was won by Precision's Pride under apprentice Lynn Cline, who steered her mount wide of the accident to win handily.