Stanford grad Man Wai Vivian Kong, competing for the Hong Kong fencing team, won her first match in Women's Épée, outdueling Peru's Maria Luisa Doig Calderon, 15-11.
Kong, who attended Sja Tom College (High) in Hong Kong, came back to beat Poland's Renata Knapik-Miazga, 15-8 in the Makuhari Messe Hall.
Kong dropped her quarterfinal duel, 15-10, to Russian Olympic Committee's Aizsanat Murtazaeva.
(Russia was officially barred from the 2020 Olympics due to a massive drugging scandal. Individual athletes were able to petition into the Games. There will be no Russian flag, nor will their national anthem be played).
The match was tied at 7-7 when Murtazaeva won three of the next four points and pulled away.
Murtazaeva advances into the semifinal and faces China's Yiwen Sun.
Kong also competed in 8the 2016 Rio Olympics in which she became the first Hong Kong fencer to ever win a bout in the Olympics.
As a sophomore at Stanford in 2014, Kong won the women's Épée national title and was named a first team all-American. She was 82-11 overall. She won her last 11 matches of the season. Kong will next compete in the Épée Team competition.
Mountain View High grad Victoria Hayward, an All-American while at Washington, plays for the Canadian national team, which beat Australia 7-1 in group play at Yokohama Stadium on Saturday.
Hayward, who became the youngest member of Team Canada in 2009 at the age of 16, is Canada's team captain and leadoff hitter.
The outfielder was 1-for-2 with two walks and scored twice. In the bottom of the first, she walked, stole second base and scored Canada's first run.
Canada is 2-1 in group play, with games against Japan and Italy coming up.
Hayward, a native of Toronto, was 2-for-4 with two runs scored in Canada's 4-0 win over Mexico and 0-for-3 (putting the ball in play each time) in Canada's 1-0 loss to Team USA.
Stanford alum and two-time Olympian Stephanie Grauer was in Canada's women's Four boat that finished third in its heat of the event.
The Netherlands won the heat with a time of 6:33.47, 6.60 seconds faster than Canada, which will participate in Sunday's repechage for a chance to qualify for the final.
Stanford grad Grace Luczak, in her second Olympics, rowed with U.S. four, which finished fourth in its heat and will move on to the repechage.
The Americans were timed in 6:43.80, just over 15 seconds behind heat winner Australia.
Stanford grad Maggie Steffens scored five goals as Team USA, the two-time defending Olympic champion, defeated Japan 25-4 in its first match of group play on Saturday.
Stanford's Aria Fischer added four goals for the Americans (18-0, 1-0) while fellow Stanford affiliates Makenzie Fischer and Melissa Seidemann each added a goal. Former Stanford standout Jamie Neushul also saw action in the match.
The U.S. meets China in its next match on Monday.
Canada, with Stanford alum Gurpreet Sohi, lost to Australia 8-5 in its group play opener. Sohi did not score but started the match.
The U.S. men's team open play Saturday against Japan. Stanford grads Alex Bowen, Ben Hallock, Drew Holland and Dylan Woodhead are on the team.