Here is the full list of all 30 Star Wars Episode I Racer trophies - there are 15 bronze, 8 silver, 6 gold and 1 platinum.
Max out your Pit Droid Crew.
Win a race with Sebulba.
Complete a Boost Start.
Perform a boost.
Unlock "Bullseye" Navior.
Unlock Slide Paramita.
Complete Amateur Podracing Circuit.
Unlock Fud Sang.
Reach 700 MPH.
Unlock Aldar Beedo.
Unlock Teemto Pagalies.
Purchase your first upgrade.
Finish your first race.
Come in first place.
Taunt your opponents.
Set a new lap record.
Earn all trophies.
Complete Semi-Pro Podracing Circuit.
Complete Galactic Podracing Circuit.
Complete Invitational Podracing Circuit.
Reach 1000 MPH.
Hit 10 enemies with Sebulba's weapon.
Unlock Wan Sandage.
Finish all races in first place.
Purchase all of the best upgrades.
Taunt during a boost.
Repair your engines from "warning" back to stable as Anakin.
Unlock Sebulba.
Unlock Bozzie Baranta.
Complete a Mirrored Race.