Oksana Masters cemented her legacy as one of Team USA's most versatile athletes ever on Day 7 at the Tokyo Paralympics. Masters won gold in road cycling to collect her ninth medal across now four separate Paralympic sports.

Masters' performance kicked off a big day for Team USA from the pool to the track to the court, including a clutch performance in goalball and a thrilling sprint race decided by the slimmest of all possible margins. 

Look back at some of the top moments of Day 7's action below.

After seven medals in the Winter Paralympics in cross-country skiing and biathlon and a London 2012 bronze in rowing, American Oksana Masters scored a podium in her fourth Para sport of road cycling, and took the top step for good measure.

Masters scorched the pavement at Fuji International Speedway with a gold-medal-winning time of 30:32.30 in the H4-5 time trial. A five-time Paralympian, she now has nine medals to her name, including three golds. Masters, who spent seven years in Ukrainian orphanages after being born with birth defects likely caused by the Chernobyl nuclear accident, first competed in cycling at the 2016 Paralympics, finishing fourth in the road race and fifth in the time trial.

Another decorated multi-sport athlete, Sarah Storey continued to add to her illustrious Paralympic career. Storey, 43 years old, earned the gold medal in the women's C5 time trial, bringing her Paralympic gold medal count to 16. She now has 27 total medals under her belt between swimming, track cycling and road cycling, tying Mike Kenny as the most decorated British Paralympic athlete ever.

Team USA's Shawn Morelli earned the gold medal in the women's C4 time trial. With this title, the 45-year-old is now a three-time Paralympic gold medalist. She also won a gold medal in Rio in the C4 time trial, as well as the C4 pursuit.

On the men's side, USA's Aaron Keith earned a silver medal in the men's C1 time trial. This is Keith's first time competing at the Paralympics at 50 years old, and now he'll be taking some hardware home with him.

For the majority of the women's 400m freestyle S8 final it appeared as though Jessica Long was destined for her 15th Paralympic swimming gold medal. Instead, she took silver for her 26th career medal as American teammate Morgan Stickney caught and passed Long in the final 50 meters for the gold.

Stickney, 24, spent the first 16 years of her life as an able-bodied swimmer but was forced to have her lower left leg amputated after a broken bone refused to properly heal for five years. Rather than face permanent excruciating pain and an addiction to painkillers, amputation was determined to be the best solution. The following year, a rare vascular condition in her right leg remarkably required Stickney to face amputation again. Stickney's story is in stark contrast to Long's, who has lived as a double-amputee since she was 18 months old. Stickney swam nearly two seconds faster than Long in the final length of the pool to overtake her teammate and friend and finish first in 4:42.39.

U.S. star McKenzie Coan swam to silver in the women's 100m freestyle S7 for her second medal of the Tokyo Games. Coan, who has Osteogenesis Imperfecta (brittle bone disease), finished behind only Italy's Giulia Terzi, who set a Paralympic record in the event. Coan is now a six-time Paralympic medalist in swimming.

Team USA might have its next swimming star in 18-year-old Evansville, Indiana, native Mikaela Jenkins, who took gold in the women's 100m butterfly S10 for her first Paralympic medal.

The day of racing at the track was highlighted by the women's 100m T47 between Team USA's Brittni Mason and Venezuela's Lisbeli Marina Vera Andrade. Mason, the world record holder, led for nearly the entire race but Vera Andrade charged furiously in the final 10 meters to force a photo finish. The photo revealed that Vera Andrade's torso crossed the line one millisecond before Mason's did. It literally does not get any closer than that.

Meanwhile, in the women's 400m T20 final, Breanna Clark could not be caught. The 26-year-old diagnosed with autism as a child powered her way to a world record time of 55.18, winning the gold medal by one second flat. At the finish line, she broke into her signature dancing celebration after defending her Paralympic title in the event from Rio 2016.

In the field events, 2016 high jump silver medalist Sam Grewe of Goshen, Indiana, captured the Tokyo gold medal with a monumental do-or-die jump. With two strikes and the bar at 1.88m (6 ft 2.02 in), Grewe grazed but did not dislodge the bar for an emotional victory. He celebrated with teammate Ezra Frech, who finished fifth. Grewe jumps with a prosthetic on his right leg, which was amputated at the knee in 2012 to suppress a rare form of bone cancer.

USA's Roderick Townsend logged a personal best in the long jump with a 7.43 distance, but Robiel Yankiel Sol Cervantes of Cuba managed a jump that's never before been accomplished at the Paralympics (7.46), earning him the long jump gold medal. Townsend, a native of Stockton, California, will take home a silver medal after already earning a gold in the high jump in Tokyo.

The U.S. women's wheelchair basketball team is headed back to the semifinals.

Team USA took down Canada by a score of 63-48 to advance to the semis for the fifth consecutive time since the Athens Paralympics in 2004. Rose Hollermann once again played a big role for the USA, logging a team-high 19 points and nine rebounds. Natalie Schneider had a strong game of her own, finishing with 18 points and nine boards while going 67 percent from the field.

The U.S. women will face China in the next round.

Team USA needed a big win against Ukraine to advance to the men's goalball semifinals, and they got it by taking down Ukraine in dramatic fashion by a score of 5-4 in extra time.

The U.S. drew first blood when Matt Simpson opened the scoring early in the first half. Vasyl Oliinyk quickly responded for Ukraine, though, knotting the game back up at one goal apiece. Oliinyk and company wound up taking a 4-1 lead in the second half, but Calahan Young scored three straight goals for the Americans to tie the Ukrainians once more just after the midway point of the second half, ultimately sending the contest to extra time. Young kept up the clutch play in extra time, scoring the game-winning goal on the first throw beyond regulation to earn his team the massive victory.

Team USA's Dana Mathewson fell to Jordanne Whiley of Great Britain in the women's singles quarterfinal. Mathewson did an admirable job of fighting back in the second set after losing the first 6-3, but Whiley regained her momentum in the final frame to advance to the semifinals.