ตอนที่ Efrain Valdez ขว้าง โฮมรันสูงสุดคือช่วงไหน?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
When Efrain Valdez was pitching, what was the highest home run?It is not neccessary to use all the tables.
 table_75217:  "Game" [ real]  "Date" [ text]  "Inning" [ text]  "Location" [ text]  "Team" [ text] 
SELECT MAX("Home Run") FROM table_75217 WHERE "Opposing Pitcher" = 'efrain valdez'