With roughly 15 minutes remaining in the first half, Christian Volesky was in clean on goal after a well-weighted pass in the right channel from Matt Polster, but didn't get the contact he wanted and allowed the Louisville goalkeeper to save.
Does it just mean its a good pass? or actually this is a type of technique in soccer?
A weighted pass means you are passing the ball – not to the place where the player is, but to the place where your moving teammate will be:
A good weighted ball is played into space in front of your teammate making it quite easy for them to run on to it in stride.
The term isn't necessarily only used in football; I found this in a rugby book:
If the first receiver is to be the springboard of the attack, it is his responsibility to control the movements of the defence and to give a perfectly-weighted pass to a runner in the gap created.
Source: Bert Holcroft, Book 2: Futuristic Rugby League: Academy of Excellence For Coaching Rugby Skills and Fitness Drills
and this one is from a recap of an ice hockey game:
Andres split the Notre Dame defense with a brilliantly weighted pass that found the stick of Reynolds, who was gliding toward the goal.
The blue line in this diagram shows the trajectory of a weighted pass:
You can watch the execution of the pass at this YouTube video.
The "weight" of a pass is how hard you hit the ball. As far as English language is concerned, the meaning is because of the association between weight and force.
Weight of pass is key: The speed of the ball is crucial to a successful pass
http://performance.fourfourtwo.com/technique/xavi-master-the-pass
A "well-weighted pass" is one that has the correct weight for the situation. It's usually used when the pass must be neither too fast nor too slow in order to work. Of course, with Xavi's standard and style of play this is all passes ;-) A pass hit forward as hard as possible is not usually referred to as "well-weighted" even when it's correct to hit it that hard.
Note that a "well-weighted pass" is a pass that is "well-weighted", not a "weighted pass" that is well :-)
It is most important to weight the pass correctly when passing into space, hence the meaning given by J.R, that a "weighted pass" is a pass where the ball meets a team-mate running onto it. That is to say, a pass where the weight is just as important as the direction and flight. Too hard and your team-mate won't reach it. Too slow and there may be a defender in position to cut it off, or even the best outcome your team-mate must break stride to collect it.
Well-weighted pass, means a well thought and professionally carried out action. In other words the player was able to see the opportunity for this action and played it successfully.
