Personally, I couldn't imagine sports as even a factor to consider; so, with that limitation... My eight year old son skipped 2nd grade because of his passion to learn and his needs not being met at his grade level and also because it put him into a full gifted program hat started in third. He's caught up and is surpassing the class now. He's happy and adjusted socially.
I think there are many negative mindsets that can develop from the stifling boredom of showing up to a place that claims to be a place of learning and never learnng anythng new. However, it seems the the majority of gifted kids aren't too impacted. But the further out their giftedness is, the harder it can become.
