The ornamental design for a fishingboatoutrigger brace, as shown and described.
FIG. 1 is a front perspective view of a fishing boat outrigger brace
showing my new design, the broken lines are for illustrative purposes only
and form no part of the claimed design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is an enlarged perspective view of the brace wire mount and
tightener thereof; and,
FIG. 5 is a front perspective view thereof showing two braces mounted on a
fishing boat outrigger.