แชมป์ของทีมใดมีคลาสรองอย่าง Matt Rao สำหรับ Winter Series Champion of Not Held?ไม่จำเป็นต้องใช้ตารางทั้งหมด
What team's champion has a secondary class of Matt Rao for a Winter Series Champion of Not Held?It is not neccessary to use all the tables.
 table_5293:  "Season" [ text]  "Champion" [ text]  "Constructor" [ text] 
SELECT "Teams' Champion" FROM table_5293 WHERE "Winter Series Champion" = 'not held' AND "Secondary Class" = 'matt rao'