Crossword clues for the word: MARTINGALE The word MARTINGALE has appeared as an answer to at least 2 crossword clues on different crossword puzzles. Crossword clues for MARTINGALE Showing 1 to 2 of 2 results Clue(s) Double-up betting system Strap from the reins to the girth of a horse that prevents it from carrying its head too high