Abstract: A system for providing a real-time baseball betting service according to an embodiment of the present invention, includes a user terminal for betting prescribed amounts of game money on prediction results of predictions of game events that occur in each inning of a baseball game that is broadcast live in real time, the bets being made using a real-time baseball betting service platform by using a preset amount of game money that is given for each game; and a baseball game betting service server that directly or indirectly allows and/or prevents the user terminal from participating in a betting process according to a preset game betting rule, and pays a prescribed reward to the user terminal on the basis of the accumulated sum value of the betting results obtained by participating in at least one of the events that occurred in each inning.