Ohmiya made her international debut for Japan at the 2007 Pacific Junior Curling Championships, skipping her own team of Chiaki Matui, Megumi Tabusa, Akane Eda and Kiiko Kawaguchi. There, the team finished in last place with a 1–5 record.[4]
For the 2007–08 season, Ohmiya joined the reigning Japanese champions Team Aomori as their alternate. The team, skipped by Moe Meguro, competed in the 2007 Pacific Curling Championships where they won the silver medal, qualifying Japan for the 2008 World Women's Curling Championship.[5] They then won the 2008 Japan Curling Championships to qualify for the World Championship.[6] At the Worlds, the team qualified Japan for the playoffs for the second time in history. After a 7–4 record round robin record, they beat Denmark's Angelina Jensen 7–3 in a tiebreaker to qualify for the playoff round.[7] They then played Switzerland's Mirjam Ott in the 3 vs. 4 game where they won 6–4. This qualified them for the semifinal where they narrowly lost to Jennifer Jones of Canada 9–8 and then went on to lose the bronze medal game to Switzerland, finishing in fourth.[8] The next season, Team Meguro again represented Japan at the 2008 Pacific Curling Championships. After a 6–2 round robin record, they lost to South Korea's Kim Mi-yeon in the semifinal game, earning the bronze medal.[9] Despite going on to defend their title and win the 2009 Japanese national title, their third place finish was not enough to qualify them for the 2009 World Women's Curling Championship.[10]
The 2009–10 season saw a lineup change for Team Aomori with Ohmiya moving up to play third on the team. As they were the two-time defending national champions, the team qualified for the final round of the 2009 Japanese Olympic Curling Trials to determine who would represent Japan at the 2010 Winter Olympics.[11] There, they won all four of their games over Team Nagano to qualify for the Olympic Games.[12] At the Games in Vancouver, British Columbia, Canada, Team Aomori led Japan to a 3–6 round robin record, placing eighth overall at the event.[13] In their three wins, they defeated Great Britain, Russia and the United States. Also during the 2009–10 season, the team represented Japan at the 2009 Pacific Curling Championships where they went through the round robin with a 6–2 record and then beat South Korea in the semifinal. They would lose in the final 10–3 to China's Wang Bingyu, however, had done enough to qualify Japan for the 2010 World Women's Curling Championship, which they would represent Japan at after again winning the Japanese Curling Championships.[14] They would not have a good performance at the World Championship, finishing in eleventh place with a 2–9 record.[15] Team Aomori skip Moe Meguro retired following the season and third Mari Motohashi left the team to move to Hokkaido.
After taking a season off, Ohmiya moved from Aomori to Hokkaido to join the Ayumi OgasawaraHokkaido Bank Fortius curling team who were the top ranked team in Japan at the time. The team also included Sayaka Yoshimura at third, Kaho Onodera at second and Yumie Funayama as the alternate. On the World Curling Tour, they would win two events, the Prestige Hotels & Resorts Curling Classic[19] and the Hub International Crown of Curling.[20] Team Ogasawara represented Japan at the 2014 Pacific-Asia Curling Championships, Ohmiya's first appearance at the event in four years. After a 5–3 round robin record, they lost to China's Liu Sijia in the semifinal. They were, however, able to pick up the bronze medal against New Zealand's Chelsea Farley.[21] This would ordinarily not be enough to qualify Japan for the World Championships, but because Sapporo was hosting the event, Japan qualified for the 2015 World Women's Curling Championship. The team then competed in their national championship to determine who would represent Japan at the World Championship. After the round robin, they placed second with a 7–1 record, but defeated Loco Solare (Mari Motohashi) to qualify for the final where they once again played Motohashi. The team were successful in securing the national title by defeating Loco Solare 8–5 and qualifying for the World Championship.[22] There, they placed just outside of the tiebreakers with a 6–5 record, ending in sixth place.[23]
The team altered their lineup for the 2016–17 season, moving Yoshimura to alternate and Yumie Funayama to third. At the start of the season, Team Ogasawara finished runner-up at the Royal LePage Women's Fall Classic to the Robyn MacPhee rink.[29] They played in one grand slam, the 2016 Tour Challenge, losing in a tiebreaker to Anna Hasselborg.[30] At the national championship, they went 6–2 through the round robin before losing both the semifinal and bronze medal games, settling for fourth.[31] The next season was more successful for the team, reaching the semifinals in five of their eleven tour events. They were not able to make it further than the semifinals in any of their events, however. They did not have the opportunity to compete to represent Japan at the 2018 Winter Olympics as only the Fujisawa and Chiaki Matsumura rinks were selected to compete in the 2017 Japanese Olympic Curling Trials. At the 2018 Japan Curling Championships, they went 7–1 through the round robin and once again won the 1 vs. 2 page playoff game to qualify for the final. There, they faced Koana's Fujikyu rink. Tied 3–3 with the hammer in the tenth end, Ogasawara missed her last shot and the team gave up a steal of two and the win to the Koana rink.[32] Following the season, Ogasawara stepped away from competitive curling.
For the 2018–19 season, Yoshimura stepped up to skip the team with Onodera at third, Ohmiya at second and Funayama as lead. The team would have immediate success on the tour, winning the 2018 Oakville Fall Classic.[33] The team played in three Slams over the course of the season, the 2018 Tour Challenge Tier 2, the 2018 National and 2019 Players' Championship. Despite missing the playoffs at the National and Players' Championship, the team made it all the way to the final of the Tour Challenge Tier 2 where they were defeated by the Elena Stern rink.[34] They also had three runner-up finishes at the Colonial Square Ladies Classic, the 2018 Paf Masters Tour and the Karuizawa International. At the 2019 Japan Curling Championships, Yoshimura led the team to a fourth place 5–3 record in the round robin. They were then able to defeat Fujikyu in the 3 vs. 4 game but were eliminated by Loco Solare in the semifinal, earning the bronze medal.[35]
Team Yoshimura played in no World Curling Tour events during the abbreviated 2020–21 season as there were no events held in Japan or Asia.[40] The team would compete in the 2021 Japan Curling Championships, held from 8 to 14 February 2021 in Wakkanai, Hokkaido.[41] The team posted a 5–1 record through the round robin of the national championship, earning them a spot in the 1 vs. 2 page playoff game. There, the lost to Loco Solare, but beat Chubu Electric Power in the semifinal to qualify for the final. Down one in the tenth, Team Yoshimura scored two points to win the national championship 7–6 over Team Fujisawa.[42] The win marked the team's second time winning the national title in over six years and Ohmiya's fifth time winning the title overall. It also earned them the right to represent Japan at the 2021 World Women's Curling Championship, which was played in a bio-secure bubble in Calgary, Canada due the ongoing pandemic. At the Worlds, the team finished in eleventh place with a 5–8 record.[43]
In September 2021, the team competed in the 2021 Japanese Olympic Curling Trials, which were held in a best-of-five contest between the Yoshimura and Satsuki Fujisawa rinks.[44] After winning the first two games, Team Yoshimura lost the final three games of the trials, not earning the right to represent Japan at the 2021 Olympic Qualification Event. They played in one Slam at the 2021 Masters where they went a winless 0–3 in the triple knockout bracket. They were, however, still able to represent Japan at the 2021 Pacific-Asia Curling Championships due to winning the 2021 national championship.[45] There, they went 5–1 through the round robin, earning a direct bye to the final where they faced South Korea's Kim Eun-jung. Down one in the tenth, Team Yoshimura was once again able to score a deuce to win the game 6–5 and earn the gold medal.[46] Because Team Fujisawa won the Olympic Trials series and were representing Japan at the 2022 Winter Olympics, a world championship trial was held between Hokkaido Bank Fortius, Chubu Electric Power and Fujikyu to determine who would represent Japan at the 2022 World Women's Curling Championship. Hokkaido Bank posted a 3–1 record in the qualifying round, earning them a spot in the best-of-three final against Nakajima. After splitting the first two games, the Nakajima rink took one in the tenth end of the final game to earn the berth as Team Japan at the World Championship.[47] In December, the team added Mina Kobayashi as their alternate.[48] Team Yoshimura ended their season at the 2022 Japan Curling Championships. After a 4–4 round robin record, they lost in the 3 vs. 4 page playoff game to Chubu Electric Power.[49] Also during the 2021–22 season, the team's contract expired with Hokkaido Bank. They then formed their own team named Fortius.[50]
In their first event of the 2022–23 season, Team Yoshimura won the 2022 Hokkaido Bank Curling Classic.[51] They then won the Wakkanai Midori Challenge Cup two weeks later.[52] In their next two events, they again reached the finals, losing the Argo Graphics Cup final to Sae Yamamoto and the ADVICS Cup final to Team Fujisawa.[53] After a successful start to the season, Yuna Kotani was added at the third position in September 2022.[54] The revised lineup of the team was Yoshimura at skip, Kotani at third, Onodera at second, Ohmiya at lead and Kobayashi as alternate with Yumie Funayama becoming the team's coach. In Canada, the team had back-to-back quarterfinal appearances at the S3 Group Curling Stadium Series and the 2022 Western Showdown, losing out to Stefania Constantini and Meghan Walter respectively.[55] In December, Team Yoshimura competed in the 2022 Karuizawa International Curling Championships where they finished third, beating Loco Solare in the bronze medal game. In the New Year, the team played in the 2023 New Year Medalist Curling where they lost in the semifinals to Daniela Jentsch. It would be the team's last event of the 2022–23 season as positive cases of COVID-19 within the team forced them to withdraw from their qualifying round of the 2023 Japan Curling Championships.[56]
