Question: who won the battle of monitor vs. merrimack

title: Battle of Hampton Roads
text: Determined to complete the destruction of Minnesota , Catesby ap Roger Jones , acting as captain in Buchanan 's absence , returned the ship to the fray the next morning , March 9 . During the night , however , the ironclad Monitor had arrived and had taken a position to defend Minnesota . When Virginia approached , Monitor intercepted her . The two ironclads fought for about three hours , with neither being able to inflict significant damage on the other . The duel ended indecisively , Virginia returning to her home at the Gosport Navy Yard for repairs and strengthening , and Monitor to her station defending Minnesota . The ships did not fight again , and the blockade remained in place .