Recently, Raphy posted a blog concerning the oldest pair of players to start a game at each position. Not surprisingly, the position of pitcher had the oldest starters, with one instance of a game with each starting pitcher over 44 years old – Jamie Moyer vs. David Wells on July 21, 2007.
That got me to thinking about what would be the oldest matchup of batter vs. pitcher. After some research, it appears the answer is also 44 years – that is, both batter and pitcher at least 44 years old. Note that I’m referring to an actual plate appearance, not just players appearing in the same game. Here are those games, indicating the final career matchup for each pair, with the oldest matchup highlighted.