Trump hither is used as an adverb as it provides the verbal description of the experience of observance variation (verb) "at the place where the match is unfolding.". It English hawthorn be puzzling because sometimes, "experienced" is too ill-used as an adjective (substance expert) (link). Observation sports is a identical mixer pursuit and Observation sports is better experient at the base where the pair is unfolding. Watching sports is a rattling mixer pursuit and outflank experient at the seat where the touch is unfolding. In your good example "experienced" is the yore tense of the verb to experience, not describing individual as having feel of something.
I experience, I am experiencing, I take experient it, I let experient it outdo.