Professional anglers make thousands of casts in any given tournament just to have a chance at winning $100,000. This year, at the 50th Bassmaster Classic in Birmingham, Alabama, one lucky fan will only need to make one cast for such a payday. This year’s Berkley Cast for Cash contest will take place during the final weigh in of the Bassmaster Classic, which begins at 3 p.m. local time inside Legacy Arena at the Birmingham Jefferson Convention Complex. One lucky person…