The phrase "active competitor" is correct and usable in written English.
It can be used to describe someone or something that is currently engaged in competition or is actively participating in a competitive environment.
Example: "In the tech industry, Company X is an active competitor, constantly innovating to stay ahead of its rivals."
Alternatives: "engaged competitor" or "current competitor".
That also hits its increasingly active competitor Google.
Per Baseball Reference's formula, Rodriguez has been worth 111.4 Wins Above Replacement over his career; Albert Pujols, his nearest active competitor, has been worth 22.9 fewer.
Entering 2011, he had thought it to be his final season as an active competitor, and his main goal for the year was to wear the yellow jersey at some time during the Tour.
In 1997, O'Connor was awarded the Whitney Stone Cup, an annual award by the United States Equestrian Federation which honors "an active competitor who displays consistent excellence in international competition and high standards of sportsmanlike conduct while serving as an ambassador for the United States and equestrian sport".
The closest active competitor for reducing all cause maternal side effects was prostaglandin inhibitors, with a probability of 79%, followed by oxytocin receptor blockers (70%).
Noninferiority was achieved with the two highest doses of once-daily valomaciclovir (11) when compared to the approved active competitor, 3-times-daily valaciclovir (3).
Since obtaining a license to supply mobile phone service throughout Germany in 1989, Mannesmann has evolved into one of Europe's most successful and internationally active competitors.
It is worth noting that Zawahiri's new message ignores Al Qaeda's more active competitors in the field of radical Islam.
There are, or have been, many columns worth the money, although few have been from active competitors: Jimmy Greaves, Niall Quinn, Alan Hansen, Ron Atkinson, Imran Khan, Kieren Fallon, Tony McCoy (not exciting, but very informative), and our own Tom Moody and Gordon Strachan, to name a few.
There's still room for more, with plenty of active competitors.
The ITH is thus related to the well-known Hegyi index (Hegyi [1974]), but the important difference is that trees that are not directly facing the reference tree are not considered to be active competitors.
