Concept:
To find the odd one out, identify the common nature of the given sports.
Step 1: Observe the type of sport.
Football, Basketball, Hockey, Cricket, Tennis, Pickleball, Boxing, and Wrestling are all competitive sports involving direct opponents or teams.
They involve player vs player or team vs team competition.
Step 2: Check High Jump.
High Jump is an athletic field event.
It is an individual performance-based event, not a direct opponent-based sport.
Thus it does not belong to the same category.
Hence, the odd one out is:
\[
\boxed{\text{High Jump}}
\]