At SPO events you earn points. You earn points in 3 ways*: Participation Points, Placement Points and Attendance Points. You can see the actual breakdown of how this is tabulated here. (*Sit 'N Go events do not award Participation or Attendance Points)
If you do not see your name in the Standings, Monthly Points Leaderboard or the Wild Card Race, but you have played in an event, it is because you have not signed up as a VIP Member. All points earned are recorded for all players, VIP or not. If you decide to sign up for VIP Membership, all points previously earned will be displayed (please allow 24-48 hours).