the season. On May 24, Joe Christopher was batting .303 and had won a starting job in right field. He was awarded the right field job, and Kranepool was demoted to Buffalo with a .139 batting average. Kranepool played just 15 games with the Bisons, hitting three home runs and batting .352 to earn a promotion back to the Mets. On his last day with the Bisons, Kranepool played all 18 innings of a double header, before getting the call to come to Shea Stadium where the Mets were playing two games the next day. On Sunday, May 31, he played first base in game one of the double header against the San Francisco Giants. Kranepool also played first in the second game of the double header, which went 23 innings. Kranepool ended up playing all 23 innings, going four for 14 over the two games. In all, he played 50 innings in two days. "I wish we could have played another 40 minutes", Kranepool was later quoted as saying of the record setting double header that lasted nearly 10 hours and ended at 11:20 PM. "That way, I could always say I played in a game that started in May and ended in June." These two games were the start of a 13-game hitting streak that saw Kranepool's batting average rise to .264. For the season, Kranepool batted .257 with 10 home runs and 45 RBI. All-Star Prior to the start of the season, the Mets acquired future Hall of fame pitcher Warren Spahn from the Milwaukee Braves. Kranepool gave up his number 21 to Spahn, who had worn that number his entire career, and began wearing number 7. By midseason, Kranepool was batting .287 with seven home runs and 37 RBIs. He was named the Mets sole representative on the National League All-Star team at the 1965 Major League Baseball All-Star Game, though he did not play. By the end of the season, Kranepool's batting average had fallen to .253, but that was still enough to lead the Mets, as the team lost 112 games that season and finished in tenth and last place in the National League. He also led his team with 133 hits and 24 doubles. In , Kranepool paced the Mets with a career high 16 home runs to help the Mets avoid a last place finish and 100 losses for the first time