On top of the admin games-page next to help you will find a menu (“Ansicht anpassen” in Germany, may be “View Settings” in english?). It opens a smal top-slider menu, where you find a number-field filled with standard “50”.
The number in the field indicates how many rows of the table (game) should be displayed.
Give it a number higher than 64, and you dont need always to switch to page two for entering results for games 51 to 64.