After giving up 34 runs in two games at Idaho Falls, the Salt Lake Trappers took out their frustrations on the Pocatello Giants Saturday night.

Terence Glover allowed only four hits and an unearned run and the Trappers broke the game open with five runs in the fifth inning on their way to a 12-1 victory. The two-game series concludes this afternoon at Halliwell Park. The Trappers, who still have a one-game lead over second-place Butte in the Pioneer League Southern Division, open a four-game series with Butte Monday night at Derks Field.Glover, 6-1, struck out 10 and consistently worked himself out of trouble, partly caused by four errors. Pocatello left runners in scoring position in each of the first six innings.

The Trappers opened the scoring with two runs in the first inning on Greg Ehmig's sacrifice fly and Tommy Boyce's RBI single. They added two in the third when Kerry Shaw singled home Jeff Allison and later scored on an error.

In the fifth, the Traps built a 9-0 lead as Kelly Zane's triple and Shaw's and Allison's singles brought home runs and Mando Verdugo followed with a two-run homer, his league-leading 11th of the season. Allison, who replaced Pat Waid (hamstring injury) early in the game, provided the rest of the Trapper scoring with a three-run triple in the seventh.

At Idaho Falls, the Trappers had gone through their bullpen and even had to use Ehmig, a first baseman, on the mound. This time, thanks to Glover, the bullpen had the night off. The Giants' only run came in the eighth when Adam Smith's grounder took a bad hop past Ehmig for what was ruled an error.