#6 Ivan Lendl vs Brad Gilbert (16-0)
Nine years, 16 matches and the same result; Lendl def. Gibert.
This rivalry began at the 1982 Hartford WCT (USA) tournament where Lendl dispatched Gilbert in straight sets 6-2, 6-2 without breaking a sweat. Such was the domination of Lendl over Gilbert that he lost only four sets in totality throughout their rivalry, and handed the embarrassment of a bagel four times.
The pair's last meeting was in the semifinal round in the year 1991 at Philadelphia (USA), where Gilbert did give a scare to Lendl. But he just couldn't cross the line with Lendl prevailing in three sets (6-4, 3-6, 6-4).
#5 Ivan Lendl vs Scott Davis (16-0)
Ivan Lendl features on the list again, having dominated Scott Davis for 11 long years and winning all 16 matches the pair played against each other. But unlike his rivalry against Gilbert, Scott often gave Lendl a run for his money; they played six tie-breakers over the course of their rivalry.
An interesting thing to note here is that no matter how close Scott got, he could only manage to win five sets overall, two of which came in an epic five-set Wimbledon showdown where Lendl prevailed 4-6, 6-4, 6-4, 5-7, 7-5 in the round of 16.
The rivalry, which started in Los Angeles in 1980, ended in Tokyo where Lendl dispatched Scott easily in straight sets for a 6-2, 6-3 win.
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