People have different views about the factors leading to the triumph in the field of sports. While some argue that athletes and sports teams with the highest level of physical fitness could win competitions, I believe psychological factors are more significant.
On the one hand, I understand the reason why it can be argued that physical factors play a pivotal role in sporting success. Perhaps the major argument is that competitions’ outcomes are largely determined by physical fitness, particularly muscular strength and endurance. For example, a weightlifter has to be physically fit enough to lift weights, and it is clear that the stronger he is, the heavier weight he can lift. Another example is that in marathon running, athletes have to consistently run in many hours, and long legs with powerful muscles are necessary so that they can make up a successful athletic performance. Furthermore, sports teams having well-built members could get a competitive edge over other teams and are more likely to succeed in competitions.
On the other hand, I am of opinion that mental factors are far more important than physical ones. Firstly, in professional competitions such as Olympic Games or World Cup, it seems that all competitors are talented and well-trained, and mental toughness would significantly affect the overall result. An athlete with the best physical abilities sometimes could make mistakes, and without willpower and perseverance, he would probably become nervous and consequently give up. Secondly, even a team with strongest members, if there were not solidarity and cooperation, could potentially fail the competition. This is particularly the case in soccer where a player could keep the ball and try to score for his own sake instead of passing the ball to other players who have better scoring opportunities.
In conclusion, although I acknowledge that good physical conditions could bring advantages to both individuals and teams, I would contend that mental factors such as determination and persistence play a more vital role in sporting success. 
 People
 have  
different
 views about the  
factors
 leading to the triumph in the field of sports. While  
some
 argue that athletes and sports  
teams
 with the highest level of  
physical
 fitness could win  
competitions
, I believe psychological  
factors
 are more significant.
On the one hand, I understand the reason why it can  
be argued
 that  
physical
  factors
 play a pivotal role in sporting success. Perhaps the major argument is that  
competitions’
 outcomes are  
largely
 determined by  
physical
 fitness,  
particularly
 muscular strength and endurance.  
For example
, a weightlifter  
has to
 be  
physically
 fit  
enough
 to lift weights, and it is  
clear
 that the stronger he is, the heavier weight he can lift. Another example is that in marathon running, athletes  
have to
  consistently
 run in  
many
 hours, and long legs with powerful muscles are necessary  
so
 that they can  
make
 up a successful athletic performance.  
Furthermore
, sports  
teams
 having well-built members could  
get
 a competitive edge over other  
teams
 and are more likely to succeed in competitions. 
On the other hand
, I am of opinion that mental  
factors
 are far more  
important
 than  
physical
 ones.  
Firstly
, in professional  
competitions
 such as Olympic Games or World Cup, it seems that all competitors  
are talented
 and well-trained, and mental toughness would  
significantly
 affect the  
overall
 result. An athlete with the best  
physical
 abilities  
sometimes
 could  
make
 mistakes, and without willpower and perseverance, he would  
probably
 become nervous and  
consequently
 give up.  
Secondly
, even a  
team
 with  
strongest
 members, if there were not solidarity and cooperation, could  
potentially
 fail the  
competition
. This is  
particularly
 the case in soccer where a player could  
keep
 the ball and try to score for his  
own
 sake  
instead
 of passing the ball to other players who have better scoring opportunities. 
In conclusion
, although I acknowledge that  
good
  physical
 conditions could bring advantages to both individuals and  
teams
, I would contend that mental  
factors
 such as determination and persistence play a more vital role in sporting success.