When two pitchers face each other who both have a WHIP < 1 the UNDER is 53-3 this year.
Atlanta Jurjens .95 WHIP
Florida Nolasco .93 WHIP
both have a WHIP < 1 last 5 games
The UNDER is 253 and 36 when pitchers with a combined WHIP of 2.2 face each other:
Toronto Rasputin (I know, but you try spelling his name) 1.3 WHIP
Seattle Washburn .76 WHIP
Philly Hamels 1.1 WHIP
Arizona Haren .9 WHIP
Houston Oswalt .67 WHIP
Cubs Dempster 1.6 WHIP
Atlanta Jurjens .95 WHIP
Florida Nolasco .93 WHIP
both have a WHIP < 1 last 5 games
The UNDER is 253 and 36 when pitchers with a combined WHIP of 2.2 face each other:
Toronto Rasputin (I know, but you try spelling his name) 1.3 WHIP
Seattle Washburn .76 WHIP
Philly Hamels 1.1 WHIP
Arizona Haren .9 WHIP
Houston Oswalt .67 WHIP
Cubs Dempster 1.6 WHIP