NEW YORK (AP) -- Two years after beating a Williams for her first U.S. Open women's singles title, Martina Hingis will take on the other half of the family for the same prize.

The women's championship match will cap ``Super Saturday'' today, which started with both men's singles semifinals.

Todd Martin and Cedric Pioline began the year's final Grand Slam event before Andre Agassi and Yevgeny Kafelnikov fought it out to determine who's No. 1 among the men.

Then come the ladies.

In 1997, Hingis captured her only U.S. Open singles crown, beating Venus Williams. She did the same thing Friday night, but this time it was in the penultimate match.

Today, the Swiss miss will face Serena Williams, Venus' younger sister.

In a rain-delayed slugfest that ended with both players trying to catch their breath and a break, Hingis overcame Venus Williams 6-1, 4-6, 6-3, spoiling a family affair championship.

Serena Williams began Friday with an equally hard-fought, but less error-prone 6-4, 1-6, 6-4 victory over defending champion Lindsay Davenport.

``I've done my part. Now it's up to Venus,'' Serena said after earning her spot in the final.

Venus Williams wasn't quite up to the task.

``Now she's playing for two people,'' the older Williams sister said. ``Hopefully I gave Martina a good workout today.''

The exhausting duel left Williams cramping at the end and burying her serves into the bottom of the net. Hingis was also tired, catching her breath whenever she could, as neither could consistently hold serve.

``It was a tremendous match, especially in the third set,'' Hingis said. ``I tried to keep her running. I knew she was cramping.''

The two began the third set by holding serve. Then came five breaks of serve in the next six games, putting Hingis in front 5-3 and serving for the match.

At 30-15, Venus Williams worked Hingis off the court, then hit a drop shot to the other side that landed just inside the sideline. Hingis raced across the court and, at the last possible moment, flicked a backhand down the line that landed just fair.

``It was unbelievable,'' Hingis said. ``I was so lucky. I put my racket there and it just went in. I was running, like, boom, boom, boom, one step after the other. I didn't know what was going to happen. I didn't believe I was going to get it in, but it went into the corner.''

When Venus sailed a backhand long on the next serve, Hingis -- not the older Williams sister -- was in the final.

``I just didn't want that finals to happen, Williams-Williams,'' Hingis said.

After a five-hour rain delay, little separated Serena Williams and Davenport in the opening set until the last game, which Serena won with a deep forehand service return that Davenport couldn't handle.

Davenport, however, didn't win last year's Open or Wimbledon this year by walking away from a fight. She leveled the match when she raced through the second set in just 24 minutes and allowed Serena only two points in the three service games she was broken.

``Lindsay was playing just unbelievable,'' Serena said. ``She was hitting shots for winners, just attacking everything. I became really determined. I was, like, `I'm tired of this. I want something also.'''

Playing in only her second U.S. Open, the seventh-seeded Serena closed out her first service game in the third set with three consecutive aces, her eighth, ninth and 10th of the match.

They stayed on serve to 3-3, when Williams gained the first break point of the set with a running forehand volley crosscourt after a superb rally.

On the next point, Williams lunged to her right to reach and shanked a shot that barely cleared the net. Davenport, surprised, ran in to scoop it up, but slapped a backhand long to fall behind 4-3.

Then came the longest game of the day -- a 22-point marathon in which Serena saved five break points before finally slapping a huge forehand that ticked off the end of Davenport's racket.

``I felt that if I won that game, I would have a great chance of winning the match because all I had to do was hold serve,'' Williams said. ``I felt if Lindsay won the game, I would have to fight. I was never going to give up. I never at one time felt I was going to lose.''