FORT WORTH, Texas—Simone Biles looks ready for Tokyo. So it seems, are the leading contenders vying to join the reigning world and Olympic gymnastics champion in Japan next month. The 24-year-old Biles claimed her seventh U.S. title Sunday night, delivering another stunning — and stunningly easy — performance that served little doubt the pressure surrounding her bid to become the first woman to win back-to-back Olympic all-around gold in more than 50 years is only pushing her to even greater heights. Shaking off a somewhat sloppy start Friday, at least by her impeccable standards, Biles put on a four-rotation showcase on what separates her from every other gymnast on the planet. Her score of 119.650 was nearly five points better than runner-up Sunisa Lee and good friend and teammate Jordan Chiles. While Biles’ victory was never in doubt — it rarely has been during her nearly eight-year reign atop the …