Miller lite is 12 fl oz, 4.2% ABV. A baseball game is typically 2.5 hours long. Assuming a 200 lbs man, and using the calculator.net BAC calculator, drinking 3-5 beers over the course of the game will leave him in the "buzz" range between 0.02% and 0.06% BAC at the end of the game.
Consuming 23 beers over the course of the game will result in a 0.38% BAC, which calculator.net helpfully describes with:
"Stupor, central nervous system depression, loss of understanding, lapses in and out of consciousness, low possibility of death"
In metric:
Miller lite is 0.355 liters, 4.2% ABV. A batball game is typically 9 kiloseconds long. Assuming a 90.71847 kg man, and using the calculator.net BAC calculator, drinking 0.3-0.5 decabeers over the course of the game will leave him in the "buzz" range between 0.02 metric% and 0.06 metric% BAC at the end of the game.