ZURICH, Switzerland (AP) -- Venus Williams has big plans. And Martina Hingis might not like them.

By hammering her way past Hingis in the final of the Swisscom Challenge 6-3, 6-4 on Sunday, Williams believes she was serving the top-ranked Swiss star notice.

``I definitely will be No. 1, and probably next season,'' Williams said. ``I have everything going for me.

``I have a lot of power. I'm capable. I'm a smart girl. I'm hard on myself, I have six titles this season.''

Having clashed five times already this season, the two 19-year-olds have been locked in a fierce -- sometimes bitter -- rivalry.

Sunday's victory marked Williams' second consecutive win over the Swiss player, having defeated Hingis in the semifinals of the Grand Slam Cup just two weeks ago, before coming up short against sister Serena.

While the Swiss player still has an 8-5 win-loss record against the lanky American, Williams leads this season's head-to-heads 3-2, having also defeated Hingis in the semifinals of the Italian Open in May.

Williams' only losses to Hingis came in the semifinals of the U.S. Open and the final in San Diego, when the Swiss player reclaimed her place atop the world rankings from American Lindsay Davenport.

But according to Williams, Hingis' lease on the top spot is nearly up.

Despite the fact that younger Serena was the first sister to win a Grand Slam title, defeating Hingis in the final of the U.S. Open, Williams still believes she'll be the one to replace the Swiss star from atop the world rankings next year.

``I have no Grand Slams, so I have no major points to defend,'' Williams said. ``I have nothing to lose and only one way to go: up.''

In Sunday's final against Hingis, Williams' most potent weapon -- her missile-like serve -- played as much against her as for her.

Serving up seven aces on the sluggish carpet, only 47 percent of Williams' first serves were good. Unwilling to risk a double fault, Williams' muscle was wasted.

But since losing to Hingis in the semifinals of the U.S. Open, Williams has been making a determined effort to master her serve.

Once she does, Williams says she'll be a force to reckon with.

``It will be unbelievable,'' Williams said. ``You wait and see.

``I'm practicing my consistency and placement and I'm really going for it,'' she said. ``When I get it just right you won't believe it.''

But Williams might need more than just a strong serve to oust Hingis, the winner of 26 career titles, including five Grand Slams and nearly $11 million in career earnings.

Hingis has won seven titles this season, including the Australian Open. Four other of her titles this year came at Tier 1 events.

She also reached the final of the U.S. and French Opens and has a 65-11 win-loss record this season.

``With some more physical training, I can beat her again,'' shrugged a confident Hingis.