。
Even now, I still can't catch a high-thrown baton properly.
Literal
I [topic-は] still highly raised baton [obj-を] well catch-[can-not-できない].
いまだに ('even now, still') is a slightly formal adverb used for ongoing states that have persisted contrary to expectation. 高く上げた is a past relative clause modifying バトン: 'the baton that was raised high.' バトンをキャッチ uses the English loan キャッチ plus する (implicit in できない) — a common pattern where foreign loans verb with する. うまく ('well, skillfully') is the adverbial of 上手い. A self-deprecating admission in polite register.