In the history of tennis, Roscoe Tanner was probably the first dominant Server. Among all the players of his era, his first serve was the most effective. He made 2.5 more aces/service winners than his rivals on average and when his first serve was in, 63% of the time it was unreturned. However, the price he had to pay to get such an effective first serve was a very low first serve percentage (46%) and also a low second serve won points (49%).
Server / Very high
When he had to play from the back of the court, Roscoe Tanner was much a Puncher than a Retriever or a Tempo player. It means that he could take risks with his forehand.
Puncher / Medium-low
Roscoe Tanner cannot be regarded as a Tempo player at all. Tempo players are baseline players who hit strong on both sides close to their baseline and this was not his case.
Tempo / Very low
Most of the time Roscoe Tanner was a serve & volleyer (Offensive). 63% of his total points were won playing that game style. It was a common game style when he played and the best one to optimize his serve and net game. On his return games, he also came in as soon as he had a chance but he only won a low ratio of points (38%).
Offensive / Very High
Winning only 28% of his points by the errors of his rivals, Roscoe Tanner was nothing but a Retriever. His Serve & Offensive game style were far too big to count on his opponents' mistakes to win a match.