Sports NASCAR playoff picture: Who’s in, who’s on bubble and who must win regular-season finale July 31, 2023August 20, 2023 Ellen J. Horrow, USA TODAY Comments Off on NASCAR playoff picture: Who’s in, who’s on bubble and who must win regular-season finale The NASCAR Cup Series postseason inches ever closer, and now there is just one playoff berth up for grabs ahead of next week's regular-season finale.