that is respectable, but unless you have many games to establish it, there is always a level of uncertainty in a chess rating.....the more games, the less uncertainty, like all statistical samples....(you can't flip a coin only once to know if it is fair, the more flips the better)....
BTW, the Glicko rating algorithm is popular today, since it brings your expected rating into range with fewer games than Elo, which could take some time if you are (for example) a chess prodigy just starting out....changes in rating are large with your first games, then become smaller.....if you are inactive for some time in playing, the uncertainty factor in the Glicko equation goes back up, since it is not known if you got "rusty" or maybe improved in nonrated games during the period
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