Here is the full list of all 51 MotoGP 13 trophies - there are 38 bronze, 10 silver, 2 gold and 1 platinum.
Unlock all Trophies
Come in 1st and 2nd as B. Spies and C. Edwards at Austin while in the Split Screen mode
Reach 3 hours of race time in valid Online Matches
Complete a Championship based on the official calendar in a better position than Valentino Rossi
Sign a contract in Career mode with Ducati Team, Repsol Honda Team or Yamaha Factory Racing
Reach a total of 60 min. of race time in valid Online Matches
Earn 1000000 fans in Career mode
Win a race as B. Spies on the Circuit of the Americas
Sign your first contract in MotoGP™ class in Career mode
Be featured on the "Bike Today" newspaper cover in Career mode
Win a Rider Championship in any class in Career mode
Complete one valid race on each track in the game
Ride for at least 1000 km (622 miles) in any offline game mode
Reach GP Level 40
Win a race on a Spanish track with a Spanish rider
Enter the Replay mode for the first time
Win a race on an Italian track with an Italian rider
Reach GP Level 25
Win a race as N. Hayden on Laguna Seca
Select the Pro Physics level in Riding Aids and complete a race
Win a race as D. Pedrosa on Motegi
Win a race as V. Rossi on Laguna Seca
Win a race as J. Lorenzo on Mugello
Complete an Online Championship
Complete an Online Grand Prix
Perform a total 2 minutes in endos
Reach GP Level 20
Earn 40000 fans in Career mode
Achieve a Pole Position, the Fastest Lap and win the Race on the same offline Weekend
Win in rainy conditions (Rain or Light Rain)
Start an offline race from the Pole Position
Reach GP Level 10
Earn 20000 fans in Career mode
Spend a total of 2 minutes doing wheelies
Raise your GP Level in order to unlock a team
Reach GP Level 5
Complete a Team objective in Career mode
Go to the track and use a rewind
Raise your GP Level in order to unlock a rider
Enter your Social Feeds page in Career mode
Change your rider's helmet in Rider Customization section
Sign your first contract in Career mode
Raise your GP Level in order to unlock a helmet
Win a race starting from the last position
Win a MotoGP™ race with one of these bikes: ART, FTR, FTR Kawasaki, FTR Honda, Suter, PBM
Perform the fastest lap in an offline race
Race using the Helmet view
Reach 300 km/h (187 mph) in any game mode
Use the Technical Meeting in the Pit to change your bike settings
Enter the Bike Settings menu in the Pit
Create your first custom rider