Classification is one of the distinctive features of Paralympic sport. Despite the existence of classification rules and a well-defined classification process, some Paralympic athletes intentionally misrepresent their abilities to classifiers in order to be allocated to a lower performing competition class, in which they secure an unfair advantage over other athletes. Such deception undermines the integrity of the competition by exploiting a vulnerability in the classification process. Such manipulation is hard to mitigate and harder still to prove that an athlete (...) had; intentionally misrepresented their abilities or; failed for innocent reasons to make maximum efforts during the classification or; had acted under coercive pressure from others in their entourage or environment. These challenges are compounded in the case of Paralympic athletes that have an intellectual impairment or who are accompanied by a parent/guardian who acts as a proxy, rendering evaluations as to responsibility even more complex. This article presents a conceptual analyses of intentional misrepresentation of abilities in Paralympic sport, and the differentiation of responsibility for offence thereupon, as stipulated in the draft of the International Standard for Intentional Misrepresentation, accompanying the new 2025 Athlete Classification Code (IPC, Citation2024). Drawing on philosophical and legal analysis we (i) set out existing shortcomings associated with Paralympic classification; (ii) articulate the range of potential intentional misrepresentational acts with respect to classification manipulation; and (iii) articulate the range of negative effects on the integrity of Paralympic sport. (shrink)