: A research paper titled "A Program Evaluation of Nontraditional High School" references the "21 Last Chance Program," examining student data from 2009–2010.
: "21 Last Chance Qualifier" is a competitive tournament format, often requiring physical decklists for paper-based play. Technical Guides 21. Last Chance
: In an Instructables guide for making a matching knife handle and sheath, "Step 21: Last Chance" serves as the final warning to check all components before permanent gluing. : A research paper titled "A Program Evaluation
: Episode 21 of Chicago Fire Season 10 is titled "Last Chance". Additionally, the TV series 21 Jump Street featured an episode titled "Last Chance High" in its fourth season. Gaming : 21. Last Chance