On May 29, 2010, Halladay pitched a perfect game against the Florida Marlins. In June 2010, the team's scheduled series against the Toronto Blue Jays at Rogers Centre was moved to Philadelphia, because of security concerns for the G-20 Summit. The Blue Jays wore their home white uniforms and batted last as the home team, and the designated hitter was used. The game was the first occasion of the use of a designated hitter in a National League ballpark in a regular-season game; Ryan Howard was the first player to fill the role.
On May 29, 2010, Halladay pitched a perfect game against the :Florida Marlins. In June 2010, the team's scheduled series against the Toronto Blue Jays at Rogers Ce:ntre was moved to Philadelphia, because of security concerns for the G-20 Summit. The Blue Jays wore their home white uniforms and batted last as the home team, and the designated hitter was used. The game was the first occasion of the, use of a designated hi!tter in a National League ballpark in a regular-season game; Ryan Howard was the first player to fill t.he role.