The ATP Challenger Tour, known until the end of 2008 as the ATP Challenger Series, is a series of international men's professional tennis tournaments. It was founded in 1976 when it replaced the ILTF Satellite Circuit as the second tier of tennis. The Challenger Tour events are the second-highest tier of tennis competition, behind the ATP Tour. The ITF World Tennis Tour tournaments are on the entry-level of international professional tennis competition. The ATP Challenger Tour is administered by the Association of Tennis Professionals. Players who succeed on the ATP Challenger Tour earn sufficient ranking points to become eligible for main draw or qualifying draw entry at ATP Tour tournaments. Players on the Challenger Tour are usually young players looking to advance their careers, those who fail to qualify for ATP events, or former ATP players looking to get back into the big tour.
The Tournoi de Québec was a WTA Tour International level tennis tournament held in Quebec City, Quebec, Canada. Held from 1993 to 2018, the tournament was the last women's professional tennis tournament still played on indoor carpet courts. It was held at the PEPS stadium. The event had several sponsors and the tournament name changed accordingly. The tournament was known as Challenge Bell from the first edition to 2013, and was later sponsored by Coupe Banque Nationale and called the National Bank Cup.
The Challenger de Drummondville, currently sponsored as Challenger Banque Nationale de Drummondville, is a professional tennis tournament held in Drummondville, Quebec, Canada since 2015. It was held in Rimouski, Quebec, Canada from 2006 to 2014. The event is part of the ATP Challenger Tour and is played on indoor hard courts.
Rebecca Catherine Marino is a Canadian professional tennis player. On 11 July 2011, she reached her highest WTA singles ranking of world No. 38. Marino was awarded Female Player of the Year by Tennis Canada two times, in 2010 and 2011.
Brayden Schnur is a Canadian professional tennis player. He reached a career-high ATP singles ranking of No. 92 in August 2019. Schnur was a part of the University of North Carolina at Chapel Hill tennis team from January 2014 to May 2016. He turned professional in July 2016 at the Rogers Cup. Schnur was a member of the Canadian team that won the 2022 ATP Cup.
The Challenger de Gatineau, currently sponsored as Challenger Banque Nationale de Gatineau, is a professional tennis tournament played on outdoor hard courts. It is currently part of the ATP Challenger Tour and the ITF Women's Circuit. It has been held annually in Gatineau, Quebec, Canada, since 2014 for women and since 2016 for men.
The Winnipeg Challenger, currently sponsored as Winnipeg National Bank Challenger, is a professional tennis tournament played on outdoor hard courts. It is currently part of the ATP Challenger Tour and the ITF Women's Circuit. It has been held annually in Winnipeg, Manitoba, Canada, since 2013 for women and since 2016 for men.
Dominik Koepfer, also spelled Köpfer, is a German professional tennis player. He achieved a career-high ATP singles ranking of world No. 49 on 4 March 2024, and a doubles ranking of No. 69 on 24 June 2024. He played college tennis at Tulane University.
The 2018 Calgary National Bank Challenger was a professional tennis tournament played on indoor hard courts. It was the first edition of the tournament and part of the 2018 ATP Challenger Tour. It took place in Calgary, Canada.
Robin Kimberly Anderson is an American tennis player.
The 2020 Calgary National Bank Challenger was a professional tennis tournament played on indoor hard courts. It was the second edition of the tournament and part of the 2020 ATP Challenger Tour. It took place in Calgary, Canada.
Maribella Zamarripa is an American tennis player.
Liam Draxl is a Canadian tennis player. He has a career high ATP singles ranking of world N°. 272 and a doubles ranking of No. 193 achieved on 17 October 2024.
Kelsey Stevenson is a Canadian tennis player.
Kayla Cross is a Canadian tennis player.
Dalayna Hewitt is an American tennis player.
The 2022 Calgary National Bank Challenger was a professional tennis tournament played on indoor hard courts. It was the third edition of the tournament which was part of the 2022 ATP Challenger Tour and the first edition of the tournament which was part of the 2022 ITF Women's World Tennis Tour. It took place in Calgary, Canada between 7 and 13 November 2022.
The 2023 Calgary National Bank Challenger was a professional tennis tournament played on indoor hard courts. It was the fourth edition of the tournament which was part of the 2023 ATP Challenger Tour and the second edition of the tournament which was part of the 2023 ITF Women's World Tennis Tour. It took place in Calgary, Canada between 6 and 12 November 2023.
The 2024 Calgary National Bank Challenger was a professional tennis tournament played on indoor hard courts. It was the fifth edition of the tournament which was part of the 2024 ATP Challenger Tour and the third edition of the tournament which was part of the 2024 ITF Women's World Tennis Tour. It took place in Calgary, Canada between 14 and 20 October 2024.
Murphy Cassone is an American tennis player.
2023 Calgary National Bank Challenger 
