CREATE TABLE table_2714 ("Edition" CLOB, "Round" CLOB, "Date" CLOB, "Partnering" CLOB, "Against" CLOB, "Surface" CLOB, "Opponents" CLOB, "W/L" CLOB, "Result" CLOB)

Name the round for john van lottum martin verkerk
SELECT "Round" FROM table_2714 WHERE "Opponents" = 'John Van Lottum Martin Verkerk'
SELECT "Round" FROM "table_2714" WHERE "Opponents" = 'John Van Lottum Martin Verkerk'