Real Madrid biggest wins against Barcelona -5-0 5-1 4-1 4-2 - (recent years) 

0:00 start
0:01 5-1 (agg) -2017
2:20 4-1 -2007
4:03 4-2 -2004
6:15 4-1 -1997
7:40 5-0 -1994
9:00 5-1 (agg) -1990