Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

A Class (15 points): Obtain an 'A' rating in all sessions of a race weekend in Career Mode. Not unlockable by Co-riders.
Victory (5 points): Your first win. Not unlockable by Co-riders.
125cc World Champion (15 points): Win a 125cc class season. Not unlockable by Co-riders.
Time Hoarder (15 points): Finish a race with more time than you started with without using any continues in Challenge Mode.
Dedicated (15 points): Use your own Career Mode motorbike and rider in a multiplayer race.
Admired (15 points): Obtain a reputation level of 15 in Career Mode. Not unlockable by Co-riders.
Professional (15 points): Obtain a reputation level of 20 in Career Mode. Not unlockable by Co-riders.
Self Sufficient (15 points): Obtain a reputation level of 10 in Career Mode. Not unlockable by Co-riders.
DING (15 points): Obtain a reputation level of 1 in Career Mode. Not unlockable by Co-riders.
New Kid on the Block (15 points): Obtain a reputation level of 5 in Career Mode. Not unlockable by Co-riders.
Show off (15 points): Do a wheelie lasting at least 500 feet on a motorbike. Not unlockable by Co-riders.
Dinner with Friends (15 points): Win a race against a full grid of human riders.
Collected (15 points): Obtain a full complement of sponsors. Not unlockable by Co-riders.
DIY (15 points): Customise every aspect of your bike and rider. Not applicable to co-riders.
Online Dominator (15 points): Win 21 races online.
Hometown Champion (15 points): Win on your home circuit in Career Mode. Not unlockable by Co-riders.
Big Business (15 points): Hire a full complement of staff in Career Mode. Not unlockable by Co-riders.
Methodical (15 points): Get every type of time bonus within the same lap on Challenge Mode.
Voltaire (15 points): Successfully perform every type of dynamic objective. Not unlockable by Co-riders.
Running on economy (15 points): Spend a total of 10 minutes slipstreaming in Challenge Mode.
Spick and Span (15 points): Win with no penalties, all clean sections, no crashes, no collisions. Not unlockable by Co-riders.
Been Practicing (30 points): Win any race on Insane difficulty. Not unlockable in Splitscreen Mode or by Co-riders.
Piggy Bank Full (15 points): Amount 50,000 in savings in Career Mode. Not unlockable by Co-riders.
The G.O.A.T. (30 points): Win a MotoGP class season on Insane difficulty. Not unlockable by Co-riders.
125cc Elite (30 points): Win a 125cc class season on Insane difficulty. Not unlockable by Co-riders.
Moto2 Elite (30 points): Win a Moto2 class season on Insane difficulty. Not unlockable by Co-riders.
Savvy (25 points): Spend over 100,000 on upgrades. Not unlockable by Co-riders.
Leader of the Pack (15 points): Qualify for pole position. Not unlockable by Co-riders.
Staff Liability (30 points): Spend over 200,000 on staff wages in one pay day. Not unlockable by Co-riders.
Hoarder (30 points): Amount 100,000 in savings in Career Mode. Not unlockable by Co-riders.
Fixed Overheads (15 points): Spend over 100,000 on staff wages in one pay day. Not unlockable by Co-riders.
World Champion (90 points): Win a MotoGP class season. Not unlockable by Co-riders.
Addicted (15 points): Earn first place 20 times in any mode. Not unlockable in Splitscreen Mode or by Co-riders.
Untouchable (30 points): Earn first place 30 times in any mode. Not unlockable in Splitscreen Mode or by Co-riders.
Consistency (15 points): Earn first place 10 times in any mode. Not unlockable in Splitscreen Mode or by Co-riders.
Star (30 points): Obtain a reputation level of 25 in Career Mode. Not unlockable by Co-riders.
Superstar (90 points): Obtain a reputation level of 30 in Career Mode. Not unlockable by Co-riders.
1st Service (30 points): Ride over 1000 miles. Not unlockable by Co-riders.
Hardcore (90 points): Complete a full Challenge Mode season without using a continue.
Bedded In (15 points): Ride over 400 miles. Not unlockable by Co-riders.
Stabilisers are off (15 points): Ride over 100 miles. Not unlockable by Co-riders.
Oil Change (15 points): Ride over 200 miles. Not unlockable by Co-riders.
Ride your way (10 points): Host a multiplayer race.