Boro midfielder George Saville scored the only goal of the game as Boro moved four points clear of the Championship relegation zone. Our Boro writer Joe Nicholson has dished out his player ratings following the match. Scroll down and flick through our picture gallery to see how each player performed for the Teessiders:
5. Adam Clayton - 7
Brought back into midfield and produced a solid display as Charlton struggled to create chances. 7 Photo: Frank Reid
6. George Saville - 7
Opened the scoring after following up an early attack. Composed in the closing stages when Charlton were building some momentum. 7 Photo: George Wood
7. Britt Assombalonga - 6
Worked hard but had a frustrating afternoon which ended midway through the second half. Subbed due to an injury after a late challenge. 6 Photo: Getty Images
8. Stephen Walker - 5
Stephen Walker - (for Assombalonga, 64) Went through on goal a couple of times but was indecisive in the final third. 5 Photo: Alex Davidson