Judoka Peter Paltchik became the second Israeli to win a gold medal at the International Judo Federation's Grand Slam competition in the United Arab Emirates on Monday.
Paltchik won in the under 100 kg weight category.
On Sunday, Israel's national anthem "Hatikva" was played for the first time in Abu Dhabi after Israeli judoka Sagi Muki won a gold medal.
The International Judo Federation had temporarily suspended the Abu Dhabi Grand Slam from its schedule, but it was reinstated after UAE organizers promised equal treatment to Israeli athletes.
UAE had previously banned any representation of the Israeli team's nationality, including displaying the flag.
In August, UAE promised the federation that the Israeli flag would be flown at future events. Several Israeli politicians, including Regev, described the decision as a major diplomatic victory for Israel.
The Associated Press contributed to this report.
Want to enjoy 'Zen' reading - with no ads and just the article? Subscribe todaySubscribe now