In 2019, the first full year of legal sports betting in the U.S., Americans wagered $13 billion on sports, according to an accounting by the American Gaming Association. The accounting covered 11 states of the current 14 legal sports betting jurisdictions. Indian casinos in New Mexico, New Hampshire’s online sports betting operation, and New York’s upstate casinos didn’t report sports betting totals. The $13 billion number was nearly double the $6.6 billion wagered in 2018, which covered just seven states and that launched legal sports betting following the U.S. Supreme Court ruling in May 2018.