Words formed from any letters in races, plus optional blank

The value of the blank, or of an existing letter already on the game board, is shown at the start of each line.

6 letters

o - coarse  

z - crazes  

e - crease  

c - scarce  

5 letters

j - rajes  

4 letters

j - jars  

x - axes  

z - czar   raze  

3 letters

j - jar   raj