They were heavily fought matches, but draws nonetheless. All three games. Chessbase writes:
Like it or not, Magnus Carlsen is the player who provides the greatest entertainment in Bilbao. In round five he played with Black against Anish Giri and managed to create winning chances from an equal position. However, Giri’s tenacious defense allowed him to draw. Sergey Karjakin and Hikaru Nakamura played an old line of the Queen’s Gambit Declined and after an improvement by White Black quickly forced a draw. Wesley So tried hard to win against Wei Yi but had no success. After five of ten rounds Carlsen leads with 10.0/15.
So far, Anish Giri still holds the upper hand against Magnus Carlsen in their classical games one-on-one match-up as their Round 5 game came to a draw after 62 moves. According to TWIC: