Eight hours up, so another tie breaker needed...and Kramer takes my vote by a tad more dominance, but it's a gnat's whisker in it. Wins 4-2 3-2.
Next battles
Preliminary round, battle six
Gustavo 'Guga' Kuerten
French Open 1997, 2000, 2001
Masters Cup 2000
5 Masters Series titles (Monte Carlo 2, Rome, Hamburg, Cincinnati)
World No. 1 for 43 weeks in 2000 and 2001
Johan Kriek
Australian Open 1981, 1982
Highest: World No. 7
Preliminary round, battle seven
Petr Korda
Australian Open 1998 (doubles 1996)
Stuttgart 1997
Grand Slam Cup 1993
3 doubles masters series titles
Highest: World No. 2 in February 1998
Bobby Riggs
Wimbledon 1939 (also doubles)
US Champion 1939, 1941
US Pro Champion 1946, 1947, 1949
Beat Don Budge on pro tour in 1946
World No. 1 1941 (amateur), 1946-47 (pro)