Colorado voters will decide Initiative 109 in the November 2026 general election after Protect Kids Colorado gathered sufficient signatures to qualify the measure restricting school and college athletic teams by biological sex. In a state that leans Democratic, organized opposition from groups such as Hands Off Colorado has mobilized turnout efforts focused on LGBTQ+ voters and allies, while supporters emphasize fairness in female categories. The closely balanced trader consensus around 54 percent against passage reflects uncertainty over turnout patterns, campaign resources on each side, and how voters weigh the issue amid a companion measure on medical procedures for minors. Late-cycle polling shifts, additional endorsements, or legal challenges could alter the outcome before ballots are cast.