Veteran Doug Risebrough's three goals and one assist enabled the Calgary Flames to beat the St. Louis Blues, 8-2, tonight and tie their Stanley Cup semifinal series at one victory apiece.

Game 3 of the best-of-seven Campbell Conference final will be Tuesday night at St. Louis.

"I think I felt as good in Game 1," he said, "but somehow the benefits came though tonight. I think I probably had four shots and three went in. I'll take that percentage any night."

Actually, he took three shots on goal. His previous best playoff scoring was his first NHL season, in 1975 when he scored three goals in 11 games.

Calgary Coach Bob Johnson said one reason his club played so much better than it did in Game 1 was that it had recovered from the letdown after eliminating the Edmonton Oilers.

"I think we realized we were playing St. Louis," he said. "Edmonton is history and tonight we put the Blues away. Plus we had a couple of days to prepare for them."

St. Louis Coach Jacques Demers said it was an "embarrassing" loss, "but, it's always easier to regroup after a loss like that."

Risebrough, 32, plays on a line with Lanny McDonald and John Tonelli, the oldest line in the NHL. He scored twice in the first period, then got his hat trick at 1:35 of the final period with his fifth playoff goal. His four points gave him the team scoring lead in the playoffs with five goals and nine assists.

The Flames controlled the first period, outshooting the Blues by 20-6 and taking a 3-0 lead. St. Louis goaltender Rick Wamsley was outstanding although he yielded three goals.

Risebrough scored his first goal at 8:51. The center finessed his way past defenseman Jim Pavese and slid a backhander between Wamsley's pads.

Risebrough flipped Neil Sheehy's rebound over Wamsley and under the crossbar to give Calgary a 2-0 lead at 18:17.

Right wing Joe Mullen, formerly with the Blues, scored his eighth playoff goal with three seconds remaining in the period, putting in a rebound from inside the blue line after Al MacInnis had shot and missed.

Wamsley thwarted Jim Peplinski twice on close shots and made a pad save on Perry Berezan on a breakaway with three minutes remaining in the period.