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

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'