A goal scored is worth one point. Unlike some other sports (football, basketball, etc), there is only one method of scoring in a soccer match. These points should not be confused with the points used...
A field goal is worth 3 points, unless it is kicked right after a touchdown then it is only 1.
An extra point is scored by kicking the ball through the uprights after scoring a touchdown. It is worth one point. PaymonM
An extra point, or more formally, a point-after-touchdown, is worth one point.
touchdown
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