President Trump and Japanese Prime Minister Shinzo Abe dined on double cheeseburgers, played a round of golf and watched a sumo wrestling match with Trump presenting the tournament’s champion a massive trophy.

Trump, the first US president to watch a sumo match in Japan, wrote about the honor in a Twitter posting on Sunday.

“Tonight in Tokyo, Japan at the Ryōgoku Kokugikan Stadium, it was my great honor to present the first-ever U.S. President’s Cup to Sumo Grand Champion Asanoyama,” Trump said. “Congratulations! A great time had by all, thank you @AbeShinzo!!”

Trump, Abe and their wives attended the wrestling tournament and sat ringside on chairs instead of sitting cross-legged on “zabuton” cushions to watch the loin cloth-wearing gargantuan athletes compete.

Trump, with some assistance from a wrestling official, hoisted the 70-pound President’s Cup and awarded it to the 360-pound Asanoyama, the winner of a 15-day tournament in Tokyo.

“In honor of your outstanding achievement as Sumo Grand Champion, I hereby award you the United States President’s Cup,” Trump read from a certificate.

“That was an incredible evening at sumo wrestling,” Trump said later at a hibachi-style meal of Wagyu steak with Abe, his wife Akie and first lady Melania Trump. “We brought that beautiful trophy, which they’ll have hopefully for many hundreds of years.”

“That was something to see these great athletes, because they really are athletes. It’s a very ancient sport. And I’ve always wanted to see sumo wrestling, so it was really great,” the president continued.

The two leaders kicked off their day with 16 holes of golf, and Abe’s office tweeted a selfie of the two men, with Trump wearing a red “USA” hat.

Trump landed at the golf course in Chiba aboard the Marine One helicopter and was met by Abe who was dressed in a blue blazer and white pants.

The president, wearing a red jacket, shook hands with Abe before the two got into a golf cart and drove away.

Following the golf, Trump and Abe sat down for double cheeseburgers made of US beef, the Japanese foreign ministry said.

Mixed in among the festivities was talk of trade between the two countries and military matters, including belligerent North Korea which has resume test-firing missiles into the Sea of Japan.

In a tweet, Trump shrugged off the most recent provocation by North Korea’s Kim Jong Un despite Japan saying the launches violated United Nations resolutions against developing weapons systems.

“North Korea fired off some small weapons, which disturbed some of my people, and others, but not me. I have confidence that Chairman Kim will keep his promise to me,” Trump posted.

On Monday, Trump is scheduled to have a working lunch with Abe and the two will later hold a news conference.

Trump and the first lady will then attend an imperial state banquet hosted by Emperor Naruhito and his wife, Empress Masako.