Colorado voters will decide Initiative 109 in November 2026 after Protect Kids Colorado submitted over 168,000 validated signatures, qualifying the measure to require school and college athletic teams be designated strictly male or female based on biological reproductive systems. The initiative, one of several similar ballot questions appearing in other states, follows certification by the secretary of state in March and has prompted organized opposition from groups including One Colorado and Hands Off Colorado. Trader consensus near even odds reflects the measure’s ballot access in a state with divided views on sex-based eligibility rules, alongside national patterns where comparable restrictions have advanced through direct democracy despite resistance in blue-leaning electorates. No major new developments have shifted positioning since qualification.