The ornamental design for a resistancebelt for fast-pitch softball pitching and baseball/softball hitting, as shown and described.
FIG. 1 is a front elevational view of a resistance belt for fast-pitch softball pitching and baseball/softball hitting showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a rear elevational thereof;
FIG. 5 is a left side elevational view thereof; and,
FIG. 6 is a right side elevational view thereof.
The broken lines are included for the purpose of illustrating a portion of the resistance belt for fast-pitch softball pitching and baseball/softball hitting that forms part of the claimed design.