Beane also made a number of key pitching acquisitions; most notably, he traded for Toronto Blue Jays reliever Billy Koch. Koch ultimately succeeded Isringhausen as the team's closer. Beane also traded for then-unheralded starter Ted Lilly and traded for second baseman Ray Durham. Additionally, the season saw the MLB debuts of second baseman Mark Ellis and eventual starter Aaron Harang. The new-look Athletics experienced a bumpy start to the season. The team followed a respectable 15–10 start with an abysmal 5–16 run; at the end of their slump, on May 23, the team's record stood at 20–26. From that point forward, the Athletics' fortunes improved significantly. In a prelude to the team's famous late-season winning streak, the Athletics went 16–1 from June 6 to June 24. The surge propelled the club within two games of first place, but a prolonged funk saw the A's play roughly .500 baseball for the next month and a half. That ended with an unremarkable 2–1 loss to the Toronto Blue Jays on August 12. On August 13, the Athletics began their then-AL-record 20-game win streak. The streak's first win came courtesy of Barry Zito, who allowed three runs (one earned) over eight innings in a 5–4 victory over the Jays. Over the next several weeks, stellar pitching, hitting, and defense all played a significant role in the Athletics' surge. Most notable were the efforts of fourth starter Cory Lidle. During August, Lidle went 5–0 while posting a scant 0.20 earned run average (he allowed one run his final start of the month); three of his five winning decisions were during the streak. Many of the Athletics' victories were by narrow margins; closer Billy Koch recorded either a win or save in 12 of the streak's 20 games. The Athletics' 18th and 19th wins came courtesy of game-ending hits by shortstop Miguel Tejada. On September 4, Oakland sought to win its 20th consecutive game; in doing so, the team hoped to break the 1947 New York Yankees' American League record of 19 consecutive wins. Their opponent was the Kansas City Royals. Over the first three innings of the game, Oakland shelled Kansas City pitchers Paul Byrd and Darrell May for a total of 11 runs, building a seemingly insurmountable 11–0 lead. Sloppy play down the stretch, however, allowed the Royals to score five runs apiece in the fourth and eighth innings. In the ninth, Billy