The spectator was charged with interference in a sporting event and was issued a ten-year no trespassing order by the US Tennis Association
Radwanska has won two tournament titles this year but is just 2-2 on clay this spring. She has never advanced beyond the fourth round at Roland Garros.
42-year-old Kimiko defeated Israel's Shahar Peer 6-2, 7-5 with only Richards, aged 45, getting as far at such at an age. If Date-Krumm wins her next match she will be the oldest ever to make the fourth round of a major tournament.
Kimiko Date-Krumm, at 41 comfortably the oldest player at Wimbledon, crashed out in the first round on Wednesday, the Japanese number one losing in three sets to Ukraine's Kateryna Bondarenko.
Anna Tatishvili of Georgia upset third-seeded Tsvetana Pironkova of Bulgaria 1-6, 6-3, 6-1 Monday in the first round of the Budapest Grand Prix.
Shahar Peer, the first Israeli female athlete to compete in the United Arab Emirates, is making another piece of diplomatic history here this week.
Failing in their attempts to win a second title in a row, Sania Mirza and Elena Vesnina crashed out of the Qatar Open after a straight-sets defeat against Vera Dushevina and Shahar Peer.
India's only player in the women's draw of the US Open, Sania Mirza has been drawn with 23-seed Shahar Peer in the first round.
Fifth-seeded Sabine Lisicki of Germany continued her roll through the Texas Open, going into the semifinals as the highest seed remaining and having yet to lose a set.
Israeli top seed Shahar Peer and Russian second seed Nadia Petrova each rallied for a three-set win Saturday to reach the final of a $220,000 WTA hardcourt event in suburban Washington.
Top-seeded Shahar Peer defeated Japanese qualifier Ryoko Duda 6-4, 6-2 to advance to the second round of the inaugural WTA Citi Open.
Seeded players Francesca Schiavone, Li Na and Shahar Peer were beaten in straights sets in the second round of the Qatar Ladies Open on Wednesday.
Two-time Grand Slam champion Svetlana Kuznetsova was ousted in the first round of the Qatar Open by Shahar Peer of Israel 6-2, 6-4 on Tuesday.
Shahar Peer believes that she has once again shown that sporting contact across political fault lines can transcend the world's worst conflicts.
Shahar Peer, the first female Israeli athlete ever to compete in the United Arab Emirates, returned to the scene of her greatest triumph with a 6-4, 6-1 win over Maria Jose Martinez Sanchez in the first round of the Dubai Open.
Fifth-seeded Shahar Peer of Israel beat Italy's Alberta Brianti 6-3, 6-4 on Sunday to win the Guangzhou Open - her first WTA Tour title in three years.
Israel's Shahar Peer, whose exclusion from the WTA Dubai Open unleashed a storm of controversy, was back in business in the best possible way - with a win.