Coventry trailed 13-0 at the break and now lie third in the Play-Off table with 10 points, two more than Birmingham and Solihull.
Phil Maynard's team play leaders Rotherham Titans at the Butts Park Arena on Saturday in their final game of the season and must win or hope that Birmingham & Solihull also lose to ensure their place in the Championship next Saturday.
Kick off is at 3pm.