Custody laws and regulations vary depending on the jurisdiction, so it's important to consult with a family law attorney in your specific area to get accurate advice tailored to your situation.
In many cases, parents who share custody of their children have legally established parenting plans or custody agreements that outline specific rights and responsibilities for each parent. These plans typically include provisions for parenting time during weekends, holidays, and other specific occasions.
If your custody agreement or parenting plan allows you to attend your children's sporting events during your ex's custody weekend, then you generally have the right to do so. However, it's important to follow the terms of the agreement or court order to avoid potential legal issues.
If your ex is making threats or trying to restrict your rights as outlined in the custody agreement, you may want to document the incidents and consult with a family law attorney. They can help you understand your rights and options and, if necessary, take appropriate legal steps to enforce the existing custody arrangement.
Remember that family court decisions are typically made based on the best interests of the children involved, so any actions you take or legal processes you engage in should prioritize the well-being and happiness of your kids.