"It was a victory that united us hard-working people back home," said winning pitcher Hisashi Iwakuma Rakuten, who turned 30 the day.
Rakuten manager Senichi Hoshino said his company had given to television to areas affected by the disaster.
"I think children rejoice in the game today," he said.
The head of the Players Association in Japan Professional Baseball season dedicated to the victims of mass disasters individual that killed thousands and caused a crisis in a nuclear plant.
"We will fight to the season with the feelings of victims of the disaster on our minds," said the president of the association, the Hanshin Tigers infielder Takahiro Arai.
"We will play our hearts on pursuing the ball. - That way we can encourage people affected by the disaster"
Several star athletes in Japan are devoting their athletic efforts for victims of the disaster, which struck the northeast coast and was interrupted a number of sporting events.
Teen golfer Ryo Ishikawa has pledged to donate all proceeds from this year to disaster survivors, including $ 93,200 he won on Sunday to finish 20 in the U.S. Masters.
In baseball, two day games, both played in the Greater Tokyo, were to follow later on Tuesday evening four games out of the regions affected by the northeast.
The players, wearing helmets bearing the slogan "Gambaro Nippon!" ("Wait Japan!"), Watched a silent prayer before the opening of the games in stadiums.
"At a time of national crisis, the role sport can play is far from being small," said the mass circulation newspaper Yomiuri Shimbun in an editorial, recalling the terrorist attacks in the United States of September 11, 2001.
U.S. major league resumed play six days after the tragedy, the New York Mets, catcher Mike Piazza urging viewers to forget the terrible incident for two or three hours of play, he said.
"Everyone in the world shares this sentiment Japanese baseball," the Yomiuri said.
twin disasters in Japan on March 11 he knocked out the electricity grid through swathes of the country, and the nuclear crisis caused blackouts, forcing the cancellation of sporting events overnight in the northeastern most affected.
Electricity shortages have also forced the country's soccer league to suspend five rounds and the season will only be restarted on 23 April.
But artificial light, the national soccer team beat a selection of the league by 2-1 in a rare star charity match on March 29 in the western city of Osaka affected.
Popular soccer columnist Tatsuhito Kaneko said the disaster had made the Japanese more resistant and may even help to "lift the trophy in the night skies of Rio" in the 2014 World Cup.