No Mercy ( 2003 ) was a professional wrestling pay-per-view event produced by World Wrestling Entertainment ( WWE ) and presented by Subway , which took place on October 19 , 2003 , at the 1st Mariner Arena in Baltimore , Maryland .
No Mercy ( 2003 ) was a professional wrestling pay-per-view show made by World Wrestling Entertainment ( WWE ) . It was held on October 19 , 2003 at the 1st Mariner Arena in Baltimore , Maryland .