Prime Minister Shinzo Abe declined to disclose the result of his high-profile rounds of golf last month with U.S. President Donald Trump in Florida, joking that it's a "national secret."

Looking back at the total of 27 holes he played on two different courses with Trump in one day, Abe told a convention of his Liberal Democratic Party in Tokyo on Sunday that he was impressed with the president's golfing skills.

"Which side won is a national secret. President Trump was indeed good. He is a wonderful player," Abe said in his address, adding that his own opening shot was probably among the best five of his life.