The phrase "a challenging rival" is correct and usable in written English.
You can use it to describe an opponent or competitor who presents a significant level of difficulty or competition.
Example: "In the championship match, she faced a challenging rival who pushed her to her limits."
Alternatives: "a formidable opponent" or "a tough competitor."
To know: John McCain is expected to win the Arizona primary today against J. D. Hayworth, who has proved a challenging rival but was outspent by the incumbent.
By Samantha Henig August 24, 2010 To know: John McCain is expected to win the Arizona primary today against J. D. Hayworth, who has proved a challenging rival but was outspent by the incumbent.
During the breeding season in December, the male's face and the fronts of its legs, which are those parts most visible to a challenging rival, are black and sharply contrasted by white fur, as well as by the yellowish gray-brown colour of the body.
To watch: Chris Young, who is running for mayor of Providence, Rhode Island, serenading a Fox morning show host: To know: John McCain is expected to win the Arizona primary today against J. D. Hayworth, who has proved a challenging rival but was outspent by the incumbent.
Whether using trade stations to manage supply and demand economics, setting up a wildlife safari or challenging rival farmers to contests, there is always something new to do – even getting married.
The team's only losses have been out of state; Groton School in Massachusetts is its most challenging rival.
Amazon last year announced their foray into the world of AI and Machine Learning technology capabilities, adding significant capabilities to their cloud stack, and challenging rivals in the space including Google, Microsoft, IBM, and others.
Uniqlo, run by Japanese billionaire Tadashi Yanai, is directly challenging rivals such as Spain's Inditex SA (ITX.MC), Sweden's Hennes & Mauritz AB (HMb.ST) and U.S.-based Gap Inc (GPS.N) with stores a stone's throw away from theirs on Manhattan's major shopping strips.
(See "Home Depot Builds In Bad Weather").. Still, Home Depot and rival Lowe's face a challenging environment, as they try to withstand the housing crisis that has limited interest in big-ticket projects around the house.
His time of 1 03.02 across a challenging 52.5km time trial course was more than a minute faster than rival and defending world champion Tom Dumoulin.
Prospects: This season looks a challenging one for a team who were once Arsenal's closest rivals.
