New Phillies pitcher Cliff Lee's career .634 winning percentage looks pretty good on its face--but he's been even better against the National League, with a 12-2 career mark in interleague play. In 22 starts against the NL, Lee has put up a 3.18 ERA, pitching 141.1 innings, allowing 133 hits (including 19 home runs) and 44 walks, and striking out 108.
Naturally, he hasn't worked much against the Phillies' NL East rivals or potential playoff opponents, but what numbers we have look pretty good (all data from Baseball Reference):
vs. Braves: 1 start, 1-0, 2.57, 7 IP, 6 H, 2 ER, 0 HR, 0 BB, 7 K
vs. Marlins: 2 starts, 1-0, 4.09, 11 IP, 13 H, 6 R, 5 ER, 2 HR, 7 BB, 10 K
vs. Mets: NR
vs. Nats: NR
vs. Cubs: 2 starts, 1-0, 2.45, 14.2 IP, 12 H, 5 R, 4 ER, 3 HR, 6 BB, 8 K
vs. Dodgers: 1 start, 0-0, 1.23, 7.1 IP, 6 H, 1 ER, 0 HR, 1 BB, 3 K
vs. Giants: 2 starts, 2-0, 1.20, 15 IP, 9 H, 4 R, 2 ER, 1 HR, 2 BB, 15 K
vs. Cardinals: 2 starts, 2-0 (1 CG/SHO), 1.20, 15 IP, 11 H, 2 ER, 0 HR, 4 BB, 11 K
Against potential World Series opponents, Lee has has more mixed results:
vs. Angels: 8 starts, 5-3 (2 CG), 3.32, 57 IP, 55 H, 24 R, 21 ER, 5 HR, 11 BB, 27 K
vs. Red Sox: 9 starts, 2-4, 4.39, 4.39, 55.1 IP, 55 H, 28 R, 27 ER, 6 HR, 23 BB, 50 K
vs. White Sox: 19 starts (21 games), 6-6 (1 CG/SHO), 5.65, 110 IP, 129 H, 71 R, 69 ER, 15 HR, 32 BB, 72 K
vs. Yankees: 9 starts, 4-4, 5.02 52 IP, 62 H, 32 R, 29 ER, 8 HR, 18 BB, 39 K
vs. Rays: 10 starts, 6-2, 2.32, 73.2 IP, 60 H, 21 R, 19 ER, 6 HR, 13 BB, 54 K