, ▁bas er unning ▁and ▁field ing − , ▁echo ▁a ▁mult itude ▁of ▁observations ▁of ▁Walker ' s ▁overall ▁excell ence . ▁He ▁produced ▁ 4 2 0 ▁runs ▁above ▁average ▁in ▁batt ing , ▁or ▁batt ing ▁runs ▁( R bat ), ▁ 9 4 ▁field ing ▁runs ▁( R field ), ▁ 4 0 ▁bas er unning ▁runs ▁( R base ), ▁and ▁ 1 0 ▁runs ▁above ▁average ▁avoid ing ▁ground ing ▁into ▁double ▁plays ▁( R dp ). ▁In ▁every ▁season ▁following ▁his ▁short ▁debut ▁campaign ▁of ▁ 1 9 8 9 , ▁his ▁adjust ed ▁OP S + ▁grad ed ▁at ▁minimum ▁at ▁ 1 1 0 ; ▁in ▁just ▁four ▁seasons ▁did ▁he ▁rate ▁below ▁average ▁in ▁field ing ▁runs ▁and ▁twice ▁in ▁bas er unning ▁runs . ▁ ▁Per ▁a ▁profile ▁of ▁Walker ' s ▁batt ing ▁technique ▁in ▁Lau ' s ▁La ws ▁on ▁H itting , ▁he ▁met ▁all ▁check points ▁on ▁the ▁list ▁of ▁absol utes ▁for ▁a ▁complete ▁swing ▁that ▁would ▁generate ▁the ▁greatest ▁possible ▁success ▁as ▁pres cribed ▁by ▁former ▁hitting ▁coach ▁Char ley ▁Lau . ▁Over all , ▁Walker ▁produced ▁" a ▁beautiful , ▁one - pie ce ▁swing ." ▁High light s ▁included ▁" an ▁exception ally ▁bal anced ▁st ance ," ▁" ex cell ent ▁weight ▁transfer " ▁and ▁" ad mi rable ▁... ▁hip ▁rotation ." ▁All ▁energy ▁transferred ▁to ▁the ▁ball ▁in ▁an ▁explos ion ▁upon ▁impact ▁with ▁the ▁bat . ▁The ▁authors ▁assert ▁that