Their right-brain dominance gives lefties better spatial awareness, and reversed body dominance makes them harder to play against. A left-hander’s ability to surprise and catch a right-handed competitor off guard in sport and battle gives then a valuable competitive edge. Left-handers excel particularly in tennis, baseball, swimming and fencing.
*also famously left-footed
Ayrton Senna, Valentino Rossi, Sebastien Loeb. 20+ World Championships between them. You might want to mention them.
You forgot Jimmy Connors, Rod Laver and Guillermo Vilas
not to mention all left handed major league baseball pitchers and large numbers of hitters some of whom may be left handed whether they hit from the left or right side. The difficult part of hitting to link to sidedness is the fact that the lead arm for a right handed batter or golfer is the left. The backhand vs. the forehand in tennis is difficult to label as distinctly only one sided as the turn is to opposite sides; the serve handedness of course in tennis best correlates with the throwing hand
As much as I would like them all to be left handers, Pele, Maradona and Messi are all right-handed.
Lin Dan of China is also a left handed badminton player followed by Tan Boon Heong of Malaysia.
Rafael Nadal must be on the list