At the Paris Olympics, a memorial ceremony honored the 11 Israelis killed by Palestinian gunmen in the 1972 Munich attack.
Montag, 26, finished the race in 1:26:25, six seconds behind the Spanish silver medalist and 31 seconds behind the Chinese winner.
Levy explained that many of the fears around rising antisemitism were exaggerated, and said that he had never encountered antisemitism himself.
As the Paris Olympics approach, discover how sports blend unity and politics, from the 1968 protest to Israeli athletes' hopes today.
Some 45,000 police and thousands of soldiers have been deployed in a huge security operation in Paris for the opening show.
There are also Jewish athletes hailing from the United States, Canada and Australia, including Olympic debutants like US swimmer Claire Weinstein and veterans like Aussie paddler Jessica Fox.
The National Security Council issued advice how to stay safe during the Paris Olympics in light of growing security threats and hostilities.
"It is clear today that there is no future for Jews in France," Rabbi Moshe Sebbag told The Jerusalem Post on Monday. "I tell everyone who is young to go to Israel or a more secure country."
The report detailed that pro-Palestinian activism was largely behind the increase in antisemitism, particularly when “support for the Palestinian cause turns into an apology for terrorism.”
Paris District 17 Mayor Geoffroy Boulard on Sunday condemned an antisemitic attack on several minors in his district, outside a movie theatre in the So Ouest shopping center.