Carlos Beltran struck two home runs to tie the series at one each, while a strong performance from Taiwan star Wei-Yin Chen helped Baltimore edge out the Yankees.
MLB playoffs: Beltran double as Cardinals draw level with Washington
Carlos Beltran hit two home runs as the St Louis Cardinals levelled their National League Divisional Series series with the Washington Nationals with a 12-4 win in game two.
Cardinals starter Jaime Garcia managed just two innings before succumbing to a shoulder problem, but a four-run second and consistent scoring thereafter meant that was never an issue.
David Freese hit the first double of the series in the second innings before Beltran homered in the sixth and eighth.
Washington starter Jordan Zimmermann gave up five runs and seven hits over three innings before exiting, while Jaime Garcia allowed just one run and two hits in two innings pitched for St. Louis in front of raucous home fans at Busch Stadium.
Wei-Yin Chen turned in a strong performance and Chris Davis led the offence as the Baltimore Orioles edged out the New York Yankees 3-2.
Chen, who was born in Taiwan, gave up eight hits over 6 1/3 innings while surrendering two runs, only one of them earned, on a chilly night in front of more than 48,000 raucous fans at a sold-out Camden Yards.
A two-run single by Chris Davis in the third inning and a run-scoring base-hit by Mark Reynolds in the sixth provided the offence for the Orioles.
Pettitte, who holds the Major League Baseball record for postseason wins with 19, gave up seven hits and three runs over seven innings and took the loss.
Robinson Cano had a run-scoring double and Derek Jeter an RBI single for the Yankees, who had nine hits but left 10 men on base.
The best-of-five series now shifts to New York with Game Three set for Wednesday.
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