Fro□ hea□t-□ound□ng □is□□ons to□out□□geo□s game□, □h□ challenges in "□unning □an 2□130□3□" □ept both □he□cast members □nd vie□ers □n □he ed□e of the□r□seat□. W□et□er it was a □□□□ agains□ time t□ □o□plet□ a task or□a game □f wits t□ o□tsm□rt their opponents, eac□ challen□e □□ou□h□ out the competitive spirit □n□ co□ed□c □imin□ of the participa□ts□