In cockfighting, a rooster can win a fight by exhibiting certain characteristics and conditions, including:

• Physical attributes: Roosters with strong legs, sharp talons, and good balance tend to perform better in fights.
• Aggression: A rooster that is naturally territorial and aggressive, and that has been bred and trained to be even more so, can be successful in a cockfight.
• Gameness: The ability to fight even when injured or tired, known as gameness, is an important trait for winning roosters.
• Intelligence: Roosters that have a good understanding of their surroundings and their opponent, and that are able to anticipate their opponent’s moves, tend to perform better in fights.
• Condition: Roosters in good physical condition, with healthy feathers and strong bodies, tend to perform better in fights.
• Training: Roosters that have received proper training, such as conditioning and sparing, are often better prepared for fights.

It is important to note that cockfighting is illegal in many countries, and is considered animal cruelty by many organizations and governments. The use of sharp spurs and the nature of the fights can result in serious injury or death to the birds, which has led to calls for more humane treatment of the animals.