That is 10% of the hands you played? Or 10% of the hands you won?
In the later case the figure is very low. In the first case it depends on how many hands you played.
Cigital examined 103 million hands of Texas Hold’Em poker played
at PokerStars. In the majority of cases, 75.7% of the time, the game’s
outcome is determined with no player seeing more than his/her
own cards and some or all of the community cards. In these games
all players fold to a single remaining player who wins the pot.
http://www.cigital.com/resources/gaming/poker/100M-Hand-AnalysisReport.pdfSo, only 25% of hands played go to showdown.