The Bavarians were just five minutes away from victory over Borussia Monchengladbach last weekend while they were rather unfortunate not to come away with something from their midweek trip to Stuttgart.
A 2-1 defeat there left them rooted to the foot of the table with just seven points, eight adrift of safety, and Weinzierl is running out of excuses.
"It is bitter and depressing that we come away empty handed once again," he said.
"I just wish that my team could have a victory to celebrate again - they need that.
"We will fight with all we have got."
That is precisely what Freiburg did on Wednesday when they were beaten 2-0 by Bayern Munich, a result their coach Christian Streich struggled to accept.
He claimed there was a conspiracy theory against his side following their rise to sixth in the Bundesliga, and that the record German champions had been favoured by the refereeing.
"Penalties are always given against us because we're small," he said in an interview with Sky television.
"I want to see if we go into the second division. We know that we are small, but we are still worth something.
"Everybody who thinks we are worthless, well they will see that we are worth something. I am not going to say anything more about referees, never."
Freiburg may not have such an inferiority complex when they face Augsburg, or at least perhaps not so much of one.
Augsburg has a population of 260,000 while Freiburg have 30,000 fewer inhabitants, exactly the number of fans who are expected to fill the Augsburg Arena on Saturday.