<P> As expected, the 2015 rule changes increased the frequency of two - point conversion attempts, from a rate of about five percent to about eight percent, much of that increase coming from the Pittsburgh Steelers alone . </P> <P> In most cases in gridiron football, one point may be scored following a touchdown--bringing the total value of the touchdown to seven points--by place kicking the ball through the uprights . Exceptions occurs in overtime in some leagues . In American college football, if the game reaches the third or subsequent period of overtime, no further one - point kicks are allowed--only two - point conversions . In the CFL, one - point (kicking) converts are not available in overtime; all convert attempts must be for two - point (rushing or passing) converts . </P> <P> In 1968, the AFL and NFL eliminated the extra-point kick for interleague preseason games, allowing only one - point scrimmage plays . The World Football League and XFL did the same in their short lives, though the XFL later implemented a variable system that allowed increasing point values for increasing the distance to the end zone on the attempt for its playoffs; that system was later adopted by the Stars Football League and, in a reduced form, the Legends Football League . The CFL proposed to test the variable - distance scoring system during the 2015 preseason, but the proposal was rejected . In arena football, two points can also be scored by means of a drop - kicked field goal . Some youth football leagues turn the scoring upside - down to an extent, scoring one point for a running touchdown and two points for either a passing touchdown or field goal; six - man football follows a similar convention that rewards one point for a pass or run and two points for a kick . </P>

Where is the ball placed for an extra point