The citizen-initiated Sex Requirement for School and College Sports measure qualified for Colorado’s November 3, 2026, ballot after Protect Kids Colorado submitted over 164,000 valid signatures in March. It would require K-12 and collegiate teams to be designated male, female, or co-ed based on biological reproductive systems, limiting participation accordingly and overriding current state non-discrimination policies that allow transgender athletes to compete consistent with gender identity. Opposing campaigns, including Families Not Politics, have raised substantial funds to highlight inclusion concerns, while national context including a prior federal executive order on school sports has shaped debate. With roughly two months until the vote and no dominant polling edge, traders assign the “yes” outcome a 57% implied probability, reflecting the measure’s qualification and divided voter sentiment in a blue state.