松井稼頭央
On April 17, Ubaldo Jiménez pitched the first no-hitter in franchise history against the Atlanta Braves. Keli McGregor, President of the Rockies, was found dead on April 20, 2010; it was later revealed that he had died of a rare occurrence of viral myocarditis. On May 24, Kazuo Matsui, former Rockies second baseman during the 2007 championship season, was resigned to the club following his unconditional release from the Houston Astros. The Rockies placed Matsui in the Triple-A Colorado Springs Sky Sox minor league team. On July 6, the Rockies were losing 9–3 in the 9th inning against the visiting St. Louis Cardinals, when the Rockies stormed back for 9 runs in the inning. Rockies Chris Iannetta and Seth Smith each hit 3-run home runs off of closer Ryan Franklin, with Smith's homer being a walk-off home run. It is currently the largest 9th inning come-from-behind victory in franchise history. On July 30, the Rockies hit an MLB record-setting 11 consecutive hits against the Chicago Cubs. The Rockies sent 18 batters to the plate and score 12 runs, eventually beating the Cubs by a score of 17–2. The hit streak consisted of four singles, four doubles, two home runs and a triple. The Rockies also broke a franchise record with 13 hits in a single inning.