Seong Ji-hoon
Curler
Born	Seong Yu-jin (1997-08-04)August 4, 1997 (age 28) Cheongju,South Korea
Team
Curling club	Gangwon Curling, Gangwon, KOR[1]
Skip	Park Jong-duk
Third	Jeong Yeong-seok
Second	Oh Seung-hoon
Lead	Lee Ki-bok
Alternate	Seong Ji-hoon
Mixed doubles partner	Kim Kyeong-ae
Curling career
Member Association	South Korea
World Championship appearances	1 (2024)
World Mixed Doubles Championship appearances	1 (2025)
World Mixed Championship appearances	2 (2016,2019)
Pan Continental Championship appearances	1 (2023)
Other appearances	Asian Winter Games: 1 (2025)
Medal record Men'sCurling Representing South Korea Asian Winter Games 2025 Harbin Mixed doubles Pan Continental Championships 2023 Kelowna World Junior Championships 2017 Gangneung Representing Gyeongbuk Korean Mixed Doubles Championship 2019 Gangneung 2020 Gangneung Representing Gangwon Korean Men's Championship 2023 Gangneung 2021 Gangneung 2024 Uijeongbu 2022 Jincheon Korean Mixed Doubles Championship 2024 Jincheon

Seong Ji-hoon (born August 4, 1997, asSeong Yu-jin inCheongju) is aSouth Koreancurler fromGangwon Province.^[1] He is currently the alternate on the Gangwon Provincial Office curling team skipped byPark Jong-duk.

In 2016, Seong and his junior team ofHong Jun-yeong,Jeon Byeong-uk,Lee Ge-on andLee Jae-ho won the Korean Junior Championship, earning them the right to represent the country at the2016 World Junior Curling Championships inCopenhagen,Denmark.^[2] There, the team struggled, finishing in last place in the group with a winless 0–9 record. Despite this, they were not relegated to the B Championship asGangneung was to host the2017 World Junior Curling Championships.^[3]

The next season, Seong joined theLee Ki-jeong rink at second and won another Korean Junior title, sending him to his second world junior championship. There, his team found much more success, placing first in the round robin with an 8–1 record and earning a spot in the playoffs.^[4] After losing in the 1 vs. 2 game to the United States, the team downed Scotland'sCameron Bryce in the semifinal to qualify for the world junior final. Tied 4–4 in the tenth end, the Korean team scored one to take the win and secure South Korea's first world junior curling title in any discipline.^[5]

Following the2016–17 season, Seong did not play on a men's team until the2021–22 season when he joined the Gangwon Provincial Office team skipped by Lee. At the2021 Korean Curling Championships, the team made it to the finals of the second round but lost to Gyeongbuk Athletic Association'sKim Soo-hyuk, ultimately finishing in second place.^[6] The following year, the team, now led byJeong Yeong-seok, finished 5–2 in the round robin but dropped their semifinal game toSeoul City Hall'sJeong Byeong-jin. They would bounce back in the bronze medal game to defeat Gyeonggido Curling Federation'sKim Jeong-min.^[7] Also during the2022–23 season, Gangwon Provincial Office finished third at the2022 Hokkaido Bank Curling Classic.^[8]

For the2023–24 season, the Gangwon team again revised their lineup withPark Jong-duk taking over as skip. This proved to be a successful move for the team as they went on to run the table at the2023 Korean Curling Championships to secure the national title, Seong's first time on the national men's team.^[9] After an 8–0 record in the first and second rounds, the team beat Seoul City Hall 7–4 in the final. This qualified the team to represent South Korea at the2023 Pan Continental Curling Championships and the2024 World Men's Curling Championship, as well as compete in tour events. After a second-place finish at the2023 Hokkaido Bank Curling Classic, Gangwon Province reached the quarterfinals in four straight Canadian tour events.^[10] At the Pan Continental Championship, they had a strong start by notably defeating Canada'sBrad Gushue 8–5 in the opening draw.^[11] They went on to finish the round robin with a 5–2 record, qualifying for the playoffs where they narrowly beat Japan 8–7. This earned them a spot in the gold medal game where, despite a strong start, they gave up key steals in the back half to concede 8–3 to the Canadian team.^[12] At the end of the season, Gangwon Provincial Office represented the country at the World Championship where they were unable to replicate their success from earlier in the year, finishing in twelfth place with a disappointing 2–10 record.^[13]

In 2019, Seong teamed up with Olympicmixed doubles playerJang Hye-ji to win the 2019 Korean Mixed Doubles Championship, qualifying for the national team. After the championship, the duo had immediate success by winning theNew Zealand Winter Games Mixed Doubles event, defeating Australia'sTahli Gill andDean Hewitt in the final.^[14] Later in the season, at the2019 World Mixed Doubles Qualification Event, the pair finished 5–1 in the round robin, finishing first in their pool and earning a playoff spot.^[15] After splitting their first two games, Seong and Jang beat Austria 7–2 in the final qualifier.^[16] This earned them the right to compete in the2020 World Mixed Doubles Curling Championship, however, the event got cancelled due to theCOVID-19 pandemic.^[17] At the 2020 championship, the team defended their title, however, did not represent Korea at the2021 World Mixed Doubles Curling Championship after being beat out byKim Ji-yoon andMoon Si-woo in a best-of-three qualifier.^[18]

Seong and Jang split after two seasons together and Seong formed a new mixed doubles team withKim Hye-rin. The pair competed in the2021 Korean Mixed Doubles Curling Championship, which doubled as the Olympic Trials for the2022 Winter Olympics. After reaching the playoffs in the first round, the pair struggled to find consistency in the second round, finishing tied for seventh place at the end of the championship.^[19]

Seong later joined withKim Kyeong-ae during the 2024-25 curling season. The pair would find immediate success, finishing second at the2025 Asian Winter Games after losing to Japan 7–6 in the final.

Seong competed at the2016 World Mixed Curling Championship as second on the Korean team led byLee Ki-bok. In the round robin, the team posted a 5–2 record to finish second in their pool and earn a spot in the playoffs.^[20] They then beat both Poland and Germany to reach the final four before losing to Russia in the semifinals. In the bronze medal game, they lost 8–4 to Scotland, finishing just off the podium.^[21] He returned to the championship three years later in2019, skipping his own team of Jang Hye-ji,Jeon Jae-ik andSong Yu-jin. Once again, the team finished 5–2 through the round robin before winning two straight playoffs games to reach the semifinals. After losing to Germany in the semifinals, he again lost the bronze medal game for a second time in a row, this time to Norway.^[22]

Seong attendedAndong National University. He changed his name from Seong Yu-jin to Seong Ji-hoon in 2021.

• Seong Ji-hoon atWorld Curling
• Seong Ji-hoon atWorld Curling

• 1997 births
• Living people
• South Korean male curlers
• Sportspeople from Cheongju
• Curlers from Gangwon Province, South Korea
• 21st-century South Korean sportsmen
• Curlers at the 2025 Asian Winter Games
• Medalists at the 2025 Asian Winter Games
• Asian Games medalists in curling
• Asian Games silver medalists for South Korea

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• CS1 Korean-language sources (ko)
• Articles with short description
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