Hold a New Tournament
Reason: religious holiday
Events: throwing (javelins, etc), fencing and martial arts
Style: round robin / points-based
Length: about a week
Awards: first place winner(s)
Top Prizes: large sums of money
Crowd: very large
Betting: official - rigged odds
Other Entertainment: parades, acrobats and jugglers, musical contest(s) and magic shows
Competitors of interest:
The precocious commoner who is relatively well-known.
The charismatic warrior who proves to be highly honoroble.
The foreign noble who is frighteningly fast.