Expected assists (xA)
WHAT IS EXPECTED ASSISTS (XA)?
Expected assists (xA) measures the likelihood that a given pass will become a goal assist. It considers several factors including the type of pass, pass end-point and length of pass.
WHAT IS EXPECTED ASSISTS (XA)?
Expected assists (xA) measures the likelihood that a given pass will become a goal assist. It considers several factors including the type of pass, pass end-point and length of pass.
What Are Expected Assists?
Stats Perform’s expected assists (xA) model measures the likelihood that a given pass will become a goal assist. The model rewards players who pass into dangerous areas, regardless of whether the receiver takes a shot or not. xA is measured on a scale between zero and one, where zero represents a pass that will never result in an assist and one represents a pass that the receiver would be expected to score from every single time.
There are similar outputs that value a player’s chance creation by taking the xG value from their key passes, but these do not isolate the contribution of the creator. The xG from key passes method is reliant on the receiver taking a shot and don’t account for what the receiver does between receiving the pass and taking the shot. Using xG from key passes does not represent the value of all passes nor does it represent the value that the pass initially provided. Expected assists, on the other hand, does both.
An expected assist value is assigned for every completed pass in Stats Perform’s detailed event data given that every completed pass can indeed become an assist (as teammates of Lionel Messi know only too well). Adding up a player or team’s expected assists gives us an indication of how many assists they should have had, based on the quality of their successful passes.
Stats Perform’s expected assists (xA) model measures the likelihood that a given pass will become a goal assist. The model rewards players who pass into dangerous areas, regardless of whether the receiver takes a shot or not. xA is measured on a scale between zero and one, where zero represents a pass that will never result in an assist and one represents a pass that the receiver would be expected to score from every single time.
There are similar outputs that value a player’s chance creation by taking the xG value from their key passes, but these do not isolate the contribution of the creator. The xG from key passes method is reliant on the receiver taking a shot and don’t account for what the receiver does between receiving the pass and taking the shot. Using xG from key passes does not represent the value of all passes nor does it represent the value that the pass initially provided. Expected assists, on the other hand, does both.
An expected assist value is assigned for every completed pass in Stats Perform’s detailed event data given that every completed pass can indeed become an assist (as teammates of Lionel Messi know only too well). Adding up a player or team’s expected assists gives us an indication of how many assists they should have had, based on the quality of their successful passes.

). We benefit by how driven he is. What he must be also beginning to see now is a structure where we dont have to rely solely on him.
Comment