Hiwatashi at Skate Milwaukee 2015
|Country represented||United States|
|Born||January 20, 2000|
Englewood, New Jersey
|Home town||Hoffman Estates, Illinois|
|Height||1.60 m (5 ft 3 in)|
|Coach||Christy Krall, Damon Allen, Mark Pillay|
|Former coach||Kori Ade, Alexander Ouriashev, Osadolo Irowa, Alexandre Fadeev, Oleg Podvalony|
|Choreographer||Mark Pillay, Benjamin Agosto|
|Former choreographer||Marina Zueva, Olga Ganicheva|
|Skating club||DuPage FSC|
|Training locations||Colorado Springs, Colorado|
|Former training locations||Glen Ellyn, Illinois|
|ISU personal best scores|
2019 Four Continents
2019 Junior Worlds
2019 Four Continents
Hiwatashi was born on January 20, 2000, in Englewood, New Jersey. His mother, Satomi, and father, Satoshi Hiwatashi, are both from Kobe, Japan. He was raised with two sisters.  For much of his early life, he lived in the Chicago suburb Hoffman Estates. He currently trains and resides for the bulk of his time in Colorado Springs, Colorado.
Hiwatashi began skating at the age of five after a rink opened near his house. He competed on the juvenile level during the 2008–2009 season, placing fourth at the Upper Great Lakes Regional Championships. Continuing as a juvenile in 2009–2010, he won the bronze medal at the Upper Great Lakes Regionals before finishing sixth at the 2010 U.S. Championships. During the 2010–2011 season, he won the juvenile gold medal at both the Upper Great Lakes Regionals and the 2011 U.S. Championships.
In 2011–2012, Hiwatashi moved up to the intermediate level, winning the gold medal at the Upper Great Lakes Regionals and the 2012 U.S. Championships. He advanced to the novice level in 2012–13, winning the gold medal at the Upper Great Lakes Regionals, the Midwestern Sectionals, and the 2013 U.S. Championships.
Coached by Alexandre Fadeev in Wilmette, Illinois, Hiwatashi was scheduled to make his ISU Junior Grand Prix (JGP) debut in Mexico in early September 2013 but sustained a medial malleolus fracture in his left foot during an official practice at the competition. As a result, he missed the rest of the 2013–2014 season.
Hiwatashi competed on the junior level during the 2014–2015 season. He won the bronze medal at the Midwestern Sectionals and placed fifth at the 2015 U.S. Championships. He ended his season with the junior gold medal at the International Challenge Cup.
In 2015–2016, Hiwatashi debuted on the JGP series, placing fifth in Colorado Springs, Colorado before winning the bronze medal in Zagreb, Croatia. He won the junior silver medal at the Midwestern Sectionals, finishing second to Alexei Krasnozhon, and went on to become the junior national champion, outscoring Kevin Shum by 14.78 points for gold at the 2016 U.S. Championships. Later that month, he was selected to replace the injured Nathan Chen at the 2016 World Junior Championships in Debrecen, Hungary.
In March at the World Junior Championships, he placed sixth in the short program and third in the free skate to win the bronze medal behind Daniel Samohin of Israel and Nicolas Nadeau of Canada. He was coached by Alexander Ouriashev in Glen Ellyn, Illinois.
Hiwatashi started his season at 2016 JGP Saint-Gervais, where he placed sixth. He competed at the 2016 CS Warsaw Cup, placing ninth, and finished fifteenth at the 2017 U.S. Championships on the senior level. During the season, he was coached by Kori Ade in Monument, Colorado.
Hiwatashi won two bronze medals on the 2017 JGP circuit, at 2017 JGP Riga and 2017 JGP Egna. At the 2018 U.S. Championships, he placed fifteenth in the short program, seventh in the free skate, and twelfth overall. He finished seventh at the 2018 World Junior Championships in Sofia, Bulgaria. By the end of the season, he was training under Christine Krall and Damon Allen in Colorado.
In September 2018, Hiwatashi won the silver medal at the 2018 JGP Canada, behind Petr Gumennik. At his second event, the 2018 JGP Slovenia, he won another silver medal. These results qualified Hiwatashi to the 2018–19 Junior Grand Prix Final in Vancouver,Canada. He next competed on the senior level at the 2018 CS Alpen Trophy, where he won the bronze medal. Concluding the fall season at the Junior Grand Prix Final, he placed sixth overall after struggling in both programs.
Due to US national champion Nathan Chen's schedule conflicting with the 2019 Four Continents Championships, Hiwatashi made his senior ISU Championship debut after being named to the Four Continents team with Vincent Zhou and Jason Brown. He set a new personal best score and placed eighth, calling his free skate "the greatest program I’ve ever done in my life."
In his final event of the season, Hiwatashi competed at the 2019 World Junior Championships alongside countrymen Alexei Krasnozhon and Camden Pulkinen. He placed second in the short program, briefly holding the junior world record until it was reclaimed minutes later by Pulkinen. In the free skate, he placed second behind Russian competitor Roman Savosin after cleanly landing a quadruple toe loop-triple toe loop combination but popping a second planned quadruple toe loop to a double toe loop. However, his strong placement from the short program combined with his performance in the free skate allowed him to claim victory overall, and he became the World Junior Champion, ahead of Savosin and bronze medalist Daniel Grassl of Italy.
|Season||Short program||Free skating||Exhibition|
|Charlie Chaplin medley|
2013–2014 to present
|CS Alpen Trophy||3rd|
|CS Warsaw Cup||9th|
|Int. Challenge Cup||1st J|
|U.S. Champ.||5th J||1st J||15th||12th||4th|
|Midwestern Sect.||3rd J||2nd J||2nd|
| J = Junior level |
TBD = Assigned; WD = Withdrew
2008–2009 to 2012–2013
|U.S. Championships||14th VQ||6th V||1st V||1st I||1st N|
|Midwestern Sectionals||1st N|
|Upper Great Lakes Regionals||4th V||3rd V||1st V||1st I||1st N|
| Levels: V = Juvenile, I = Intermediate, N = Novice |
Q = Qualifying round
Small medals for short and free programs awarded only at ISU Championships.
|March 4–10, 2019||2019 World Junior Championships||Junior||2
|February 7–10, 2019||2019 Four Continents Championships||Senior||9
|Jan. 19 - 27, 2019||2019 U.S. Championships||Senior||4
|December 6–9, 2018||2018–19 JGP Final||Junior||6
|11-18 November 2018||2018 CS Alpen Trophy||Senior||3
|October 3–6, 2018||2018 JGP Slovenia||Junior||3
|September 12-15, 2018||2018 JGP Canada||Junior||1
|March 5–11, 2018||2018 World Junior Championships||Junior||11
|Dec. 29 – Jan. 8, 2018||2018 U.S. Championships||Senior||15
|October 1–14, 2017||2017 JGP Italy||Junior||3
|6–9 September 2017||2017 JGP Latvia||Junior||5
|January 14–22, 2017||2017 U.S. Championships||Senior||13
|17–20 November 2016||2016 CS Warsaw Cup||Senior||8
|24 – 28 August 2016||2016 JGP France||Junior||6
|March 14–20, 2016||2016 World Junior Championships||Junior||6
|January 15–24, 2016||2016 U.S. Junior Championships||Junior||1
|7–11 October 2015||2015 JGP Croatia||Junior||4
|Sept. 2–5, 2015||2015 JGP United States||Junior||6
|February 19–22, 2015||2015 Challenge Cup||Junior||1
|January 18–25, 2015||2015 U.S. Junior Championships||Junior||5
|Sept. 4–8, 2013||2013 JGP Mexico||Junior||
|Jan. 19–27, 2013||2013 U.S Championships||Novice||1
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- "Tomoki Hiwatashi". U.S. Figure Skating.
"Earlier versions: 2015–2018". IceNetwork.com. Archived from the original on July 1, 2018.CS1 maint: Unfit url (link)
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- "Tomoki HIWATASHI: 2013/2014". International Skating Union. Archived from the original on December 20, 2014.CS1 maint: Unfit url (link)
- "Chen Undergoes Left Hip Surgery". U.S. Figure Skating. January 28, 2016.
- "Tomoki HIWATASHI: 2015/2016". International Skating Union. Archived from the original on May 28, 2016.CS1 maint: Unfit url (link)
- "Tomoki HIWATASHI: 2016/2017". International Skating Union. Archived from the original on May 20, 2017.CS1 maint: Unfit url (link)
- "Tomoki HIWATASHI: 2017/2018". International Skating Union. Archived from the original on May 29, 2018.CS1 maint: Unfit url (link)
- Cite error: The named reference
JGP2018was invoked but never defined (see the help page).
- Mammoser, Scott. "Chen dominates U.S. men to win third national title". Golden Skate. Archived from the original on January 27, 2019. Retrieved January 27, 2019.
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- Slater, Paula (March 6, 2019). "Camden in true form at Junior Worlds". Golden Skate.
- "Junior Men". www.isuresults.com. Retrieved March 8, 2019.
- Slater, Paula (May 16, 2019). "USA's Tomoki Hiwatashi comes to 2019-20 season with renewed confidence". Golden Skate.
- "Competition Results: Tomoki HIWATASHI". International Skating Union.