Thomas Engert is a German professional pool player. Engert won the 2004 International Challenge of Champions beating fellow German Thorsten Hohmann in the finals. When he returned to the tournament one year later, Engert was close to winning it for the second consecutive time but Chao Fong-pang, who was then the two-time winner of the event, defeated him in the finals.
The Almaty Challenger is a professional tennis tournament played on clay courts. It is currently part of the Association of Tennis Professionals (ATP) Challenger Tour. It is held annually in Almaty, Kazakhstan since 2017.
The Gujarat Kensville Challenge was a golf tournament on the Challenge Tour and the Professional Golf Tour of India, played in India. It was held for the first time in January 2011 at Kensville Golf and Country Club in Ahmedabad, Gujarat, and was the season opening event on the tour. It was last played in 2013.
The Morocco Tennis Tour – Casablanca is a professional tennis tournament played on outdoor red clay courts. It is currently part of the ATP Challenger Tour. It is held annually in Casablanca, Morocco, since 2011.
The Manila Challenger was a tennis tournament held in Manila, Philippines 2016. The event is part of the ATP Challenger Tour and is played on outdoor hard courts. The inaugural tournament of the Manila Challenger was held at the newly refurbished Rizal Memorial Tennis Center in Manila on January 18–24, 2016 with local players and experienced ATP-ranked tennis players vying for the top prize of $75,000.
The Båstad Challenger was a mens tennis tournament held in Båstad, Sweden founded in 2016. The event is part of the ATP Challenger Tour and is played on outdoor clay courts until 2018 when it was discontinued.
The Columbus Challenger is a professional tennis tournament played on hard courts. It is currently part of the ATP Challenger Tour and WTA 125K series. The ATP event is held annually in Columbus, Ohio, U.S., as it has been since 2015, the tournament's start. The women's edition started in 2021.
The Monterrey Challenger is a professional tennis tournament played on hard courts. It is currently part of the ATP Challenger Tour. It is held annually in Monterrey, Mexico since 2015.
The Brest Challenger is a professional tennis tournament played on hard courts. It is currently part of the ATP Challenger Tour. It is held annually in Brest, France since 2015.
The Hungarian Challenger Open was a professional tennis tournament played on hard courts on the ATP Challenger Tour. It was held annually in Budapest, Hungary from 2016 to 2019.
The Koblenz Open is a professional tennis tournament played on indoor hard courts. It is currently part of the ATP Challenger Tour. It is held annually in Koblenz, Germany since 2017.
The International Challenger Quanzhou was a professional tennis tournament played on hard courts. It was part of the ATP Challenger Tour. It was held in Quanzhou, China in 2017.
The Lisboa Belém Open is a tennis tournament played on clay courts. It is currently part of the ATP Challenger Tour and the ITF Women's World Tennis Tour, and held in Lisbon, Portugal since 2017.
The Oracle Challenger Series – Indian Wells is a professional tennis tournament played on hard courts. It is currently part of the ATP Challenger Tour and the WTA 125K series. It is held annually in Indian Wells, California, United States since 2018. The two American men and two American women with the most points in the series receive wild cards to their respective singles events at the Indian Wells Masters.
The Euram Bank Open is a golf tournament on the Challenge Tour. It was first played in July 2018 at Golf Club Adamstal in Ramsau, Austria. Adamstal hosted the MAN NÖ Open on the Challenge Tour from 2006 to 2008.
The Oracle Challenger Series – Houston is a professional tennis tournament played on hard courts. It is currently part of the ATP Challenger Tour and the Women's Tennis Association (WTA) 125K series. It is held annually in Houston, United States since 2018. The ATP Challenger Tour returned to Houston, Texas for the first time since 2001, with the inaugural Oracle Challenger Series Houston making its debut in November. Held on the campus of Rice University, at the new $9 million George R. Brown Tennis Complex. Houston is will become one of just two U.S. cities to host tournaments on both the ATP World Tour and ATP Challenger Tour, with the ATP World tour tournament being the U.S. Men's Clay Court Championships. The Oracle Challenger Series – Houston is the second stop for the Oracle Challenger Series calendar. The winner of the Oracle Challenger Series earns a wild card into Indian Wells Masters.
The Bratislava Open is a professional tennis tournament played on clay courts.
The BeeTV Women's(previously known as Nur-Sultan Challenger) is a professional tennis tournament played on indoor hardcourts. It is currently part of the ATP Challenger Tour and the ITF Women's World Tennis Tour, and held annually in Astana, Kazakhstan since 2019.
The Maia Challenger is a professional tennis tournament played on clay courts. It is currently part of the ATP Challenger Tour. It is held annually in Maia, Portugal since 2019.
The Challenger de Tigre is a professional tennis tournament played on clay courts. It is currently part of the ATP Challenger Tour. It is held annually in Tigre, Argentina since 2022.
Craig Hainline 
