Here is the full list of all 44 Sports Champions 2 trophies - there are 30 bronze, 11 silver, 2 gold and 1 platinum.
Unlock all Bronze, Silver, and Gold Trophies
Win a game of Golf at each location in Free Play
Complete a round of Golf with four players
Complete more than 1 Party Play playlist
Use two or more created Champions in a multiplayer game
Complete the Gold Cup in all 6 sports
Complete the Gold Cup in Tennis
Acquire 250 stars in Cup Play
In Tennis, score 10 points at the net in a single match
Earn at least 2 stars on each Bronze Cup Challenge Mode
Customize an outfit for your Champion in all 6 sports
Score two aces in a single Tennis match
Win a Tennis game after going deuce twice
Complete a game of Tennis
Complete the Gold Cup in Skiing
Successfully land a jump with two forward flips and two back flips
During a race, cause another skier to crash
Pass another skier after drafting behind them for at least 5 seconds
Complete a game of Skiing
Complete the Gold Cup in Boxing
Acquire 500,000 points in Cup Play with a single Champion.
Win a single-player Boxing match without being knocked down once (Silver or higher)
Come back to win after being knocked down in a single-player Boxing match (Silver or higher)
Complete a game of Boxing
Land a 6-hit combo in Boxing
Complete the Gold Cup in Golf
Acquire 100 stars in Cup Play
In Golf, make a putt over 40 feet
Complete a game of Golf
In Golf, hit the ball onto the green from the tee
Complete the Gold Cup in Archery
Win a Silver difficulty level (or higher) Archery match without missing a shot
Last for 2 minutes in an Archery Challenge Mode match
Complete a game in Archery
Get 3 split arrows in a single Archery match
Improve your score in a previously completed Cup Play match
Complete the Gold Cup in Bowling
In Bowling, pick up a split spare
In Bowling, get above a 200 point game in Silver difficulty or higher
Acquire 25 stars in Cup Play
Accumulate 20 strikes in Bowling
Equip your Champion with an unlockable item
Complete a game of Bowling
Complete a training stage in any sport