The ornamental design for a red winerack, as shown and described.
FIG. 1 is a perspective view of a red wine rack showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a perspective view thereof showing the red wine bottle is placed on the red wine rack.
The dashed broken lines illustrate portions of the red wine rack and form no part of the claimed design. The dot-dash broken lines define the bounds of the claimed design and form no part thereof.