Probably a smart move for Herschel Walker. By not showing up and serving his usual word salad, he avoided more headlines about his incompetence. But a lot of voters really hate it when you don't even bother to show up. Via the New York Times:

ATLANTA — Herschel Walker was not onstage on Sunday night for Georgia’s second U.S. Senate debate. But he was one of its main topics anyway.

Senator Raphael Warnock, the incumbent and a Democrat, excoriated his Republican opponent, Mr. Walker, who chose not to attend the debate, arguing that Mr. Walker’s history of domestic violence, lies about his past and refusal to participate in the forum made him unqualified for office.

Throughout the hourlong matchup in Atlanta, Mr. Warnock stepped out of character, opting for direct attack lines over the thinly veiled criticisms he has leveled at Mr. Walker for most of the campaign. He answered panelists’ questions with a mix of policy points and full-throated rebukes of Mr. Walker’s claims about his personal life, business prowess and academic record. He described Mr. Walker’s “well-documented history of violence” in reference to reports about Mr. Walker’s domestic violence against his ex-wife, Cindy Grossman, calling them “disturbing.”

I didn't realize there was a Libertarian candidate, Chase Oliver, in the race. Probably encouraged to run by the GOP to further split the vote!