In 2002–2003, Samuelson/Bates moved up another level and competed internationally for the first time through the North American Challenge Skate program, placing 10th in the novice ranks at the event in Thunder Bay, Ontario.

Skating with a minor knee injury at their first Junior Grand Prix event in Lake Placid, Samuelson/Bates won all three segments of the competition to win the gold medal overall.

On April 28, 2010, they announced their decision to leave their long-time coaches, Yuri Chesnichenko and Yaroslava Nechaeva, to train with Igor Shpilband and Marina Zueva in Canton, Michigan.

[16] In September 2010, Bates sustained a complete laceration of his Achilles tendon after Samuelson struck him with her skate blade as she came down from a lift.

The team went on to win the silver at the Grand Prix Final in December and then their first senior national title at the 2015 U.S. Championships in January.

[26][27] They changed the short dance music to "More" and "Unchained Melody" to clarify the rhythms,[28] and won the gold at the 2015 Skate America followed by a silver at 2015 Cup of China.

[29][30] She and Bates won silver medals at the 2017 Cup of China and 2017 Internationaux de France, which meant that they qualified to their fourth consecutive Grand Prix Final.

They were not selected for the team competition but competed in the individual ice dancing event at the 2018 Winter Olympics, which took place in February in Gangneung, South Korea.

[29] In late May, Chock/Bates announced a coaching change, stating that they would begin training in the summer with Marie-France Dubreuil, Patrice Lauzon, and Romain Haguenauer in Montreal, Quebec, Canada.

Beginning the season on the Challenger series, Chock/Bates won gold at the 2019 CS U.S. Classic, winning by almost 14 points over silver medalists Carreira/Ponomarenko.

[43] At the Grand Prix Final, Chock/Bates scored a season's best in the rhythm dance, placing third while obtaining three of the four Finnstep key points.

[60] The team selected a medley of Billie Eilish songs to perform for their rhythm dance while, following the success of their Egyptian Snake Dance program, aimed to replicate that success with a new "Contact" program built around the concept of an astronaut romancing an alien, accompanied by a medley from Daft Punk's final album, Random Access Memories.

"[64] Their results qualified them to the Grand Prix Final, but it was subsequently canceled due to restrictions prompted by the Omicron variant.

[67][68] However following a positive doping test of Russia's gold medalist Kamila Valieva, the team members were not awarded their medals, pending an investigation.

The two toured for three months following the Montpellier World Championships, performing in forty skating shows, and as a result, were not prepared in time to participate in a Challenger event.

[75] For their free dance for the new season, they opted for a medley of songs by Quebec musician Jorane and a program theme inspired by Chock's vintage 1920 engagement ring, namely, "how love is connected and flows through time and transcends the physical world.

"[75] In their competitive debut on the Grand Prix at the 2022 Skate America, they won the gold medal, albeit losing the free dance to domestic rivals Hawayek/Baker after their choreographic slide element was invalidated.

"[77] They were generally considered the favorites to win the 2022 NHK Trophy, their second event, but they unexpectedly finished second behind Canadian training partners Fournier Beaudry/Sørensen, taking the silver medal.

"[76] Entering the Grand Prix Final in Turin perceived to be on the back foot against top-seeded Canadians Gilles/Poirier and Italian champions Guignard/Fabbri.

"[80][81] They were second in the free dance as well, finishing 3.70 points behind Gilles/Poirier and winning their fourth Grand Prix Final silver, which Chock called "everything we hoped it would be for where we have been and the amount of work we’ve put in since Skate America and NHK.

"[82][83] Heavy favourites going into the 2023 U.S. Championships, Chock/Bates successfully defended their title, winning a second consecutive and fourth overall national gold medal together.

[84][85] With rivals Gilles/Poirier absent from the 2023 Four Continents Championships due to Gilles' requiring an appendectomy, Chock/Bates entered the event as heavy favourites for their third title.

[87][88] They won the free dance by a wider margin of over five points, taking the gold medal again and setting new personal bests in the segment and overall.

[97] Skipping the Challenger circuit for a second consecutive season, Chock and Bates' first competition was a defense of their title at the 2023 Skate America.

They finished first in the rhythm dance by seven points in front of Canadian training mates Lajoie/Lagha, despite having had a dangerous fall in practice the morning of the segment.

They cite the fiftieth anniversary of The Dark Side of the Moon as the inspiration for their Pink Floyd medley free program.

In the free dance, they lost a level on their opening stationary lift, and ultimately finished second in that segment behind Canada's Gilles/Poirier, but remained first overall and claimed the gold medal.

[107] Again eschewing the Challenger circuit, Chock/Bates started their season on the Grand Prix at 2024 Skate America, entering the event as the heavy favourites for the gold.

The result saw them tie Meryl Davis and Charlie White's record of six senior ice dance gold medals.

"[111] At the 2025 Four Continents Championships in Seoul, Chock/Bates entered as the title favourites, but unexpectedly placed second in the rhythm dance, 1.01 points behind Canadian rivals Gilles/Poirier.