Serena Williams' three-set US Open final victory over second seed Victoria Azarenka has prevented a disappointing year, according to the world number one.
The claim comes despite having won eight titles and enjoyed a winning streak of 34 matches in 2013, as well as glory at the French Open.
Williams overcame the Belarusian 7-5 6-7 (6-8) 6-1 to secure her 17th Grand Slam title leaving her seven short of Margaret Court's all-time record of 24 titles and five away from Steffi Graf's Open era total of 22.
However a quarter-final loss at the Australian Open and shock fourth-round exit to Sabine Lisicki at Wimbledon meant only a win at Flushing Meadows could constitute a good season for the American.
"I felt almost disappointed with my year, to be honest," she said.
"I won the French Open but I wasn't happy with my performances in the other two Slams - and not even making it to the quarter-finals of one.
"So I definitely feel a lot better with at least a second Grand Slam under my belt this year."
Sunday's closely fought encounter saw Williams squander a double-break advantage in the second set as well as twice failing to serve out the match with Azarenka forcing a third set in a tie-break.
Despite now being 32-years-old, Williams claims she has never felt better with retirement certainly not on the agenda any time soon.
"I feel great," she said. "I have never felt better. I feel really fit. I can play a tournament like this, singles, doubles, with tough, tough schedules. For the most part, I felt really good.
"I haven't felt like this in a number of years - I'm excited about the possibilities. I don't know what can happen. I just keep playing and do the best that I can."
Former US President Bill Clinton hailed her as an inspiration after her victory.
"She always wanted to be someone who opened up new avenues for girls and women," he told BBC Radio 5Live.
"She is able to play highly competitive, high concentration tennis and win, but always be concerned about why she was really doing it."
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