However, it was the 2019 AFC Asian Cup, in which he helped the team to qualify from an easy qualification group, that became Verbeek's biggest success in his coaching career. Under Verbeek Oman lost to Uzbekistan and Japan with just one goal margin, before he registered the greatest success of Omani football history, beating Turkmenistan 3–1 to help Oman qualify for the round of sixteen for the first time. Although Oman's dream run ended by a 0–2 defeat to Iran, it was a great success.