Hideki Matsuyama's win in the Masters was not only his first major championship. It was the first major won by any Japanese man, providing what could be a shot of energy to a once-thriving Japanese golf economy. As Matsuyama takes center stage in this week's Olympic golf competition outside Tokyo, Alex Myers examines the many reverberations of Matsuyama's historic win, from the lucrative opportunities for the player, to the next Japanese golf boom it might inspire.