ur . ▁If ▁the ▁series ▁was ▁split ▁( 3 ▁to ▁ 3 ), ▁the ▁winner ▁was ▁the ▁club ▁which ▁scored ▁the ▁most ▁runs ▁over ▁the ▁course ▁of ▁the ▁series . ▁In ▁, ▁the ▁Ast ros ▁joined ▁the ▁American ▁League ▁West ▁with ▁the ▁R angers ▁and ▁changed ▁their ▁rival ry ▁from ▁an ▁inter le ague ▁to ▁an ▁int ra - div ision ▁rival ry . ▁ ▁Background ▁The ▁Dallas – F ort ▁W orth ▁met ro plex ▁( DF W ) ▁and ▁Gre ater ▁Houston ▁areas ▁have ▁been ▁riv als ▁in ▁sports ▁and ▁other ▁areas ▁for ▁many ▁years . ▁D iffer ences , ▁not ▁related ▁to ▁baseball , ▁include ▁the ▁weather ▁during ▁the ▁summer , ▁population , ▁cultural , ▁and ▁alleg iance ▁prefer ences ▁between ▁the ▁different ▁regions ▁of ▁Texas . ▁Both ▁Gre ater ▁Houston ▁and ▁D F W ▁have ▁hum id ▁subt rop ical ▁clim ates ; ▁however , ▁D F W ▁mostly ▁has ▁dry ▁wind s ▁in ▁the ▁summer ▁and ▁sometimes ▁ icy ▁conditions ▁in ▁the ▁winter , ▁with ▁some ▁fro st ▁at ▁night , ▁compared ▁to ▁Gre ater ▁Houston ' s ▁severe ▁relative ▁hum id ity ▁and ▁minimal ▁wind , ▁except ▁near ▁the ▁coast , ▁and ▁mil der ▁winter ▁conditions . ▁The ▁Metro plex ▁is ▁located ▁in land ▁in ▁North ▁Texas ▁while ▁Houston ▁is ▁in ▁the ▁face ▁of ▁the ▁G ulf ▁of ▁Mexico ▁in ▁S out heast ▁Texas . ▁The ▁city ▁of ▁Dallas ▁has ▁the ▁ 9 th ▁largest ▁population ▁in ▁the ▁United ▁States ▁and ▁ 3 rd ▁largest ▁population ▁in