1 5 , 0 0 0 ▁with ▁temporary ▁overlay . ▁Lee ▁Valley ▁has ▁already ▁hosted ▁the ▁European ▁Hockey ▁Championships ▁in ▁ 2 0 1 5 ▁and ▁the ▁Women ' s ▁Champions ▁Tro phy ▁Event ▁in ▁ 2 0 1 6 , ▁The ▁Men ' s ▁World ▁League ▁Round ▁ 3 ▁in ▁ 2 0 1 7 ▁and ▁the ▁Hockey ▁Women ' s ▁World ▁Cup ▁in ▁ 2 0 1 8 ▁will ▁also ▁be ▁st aged ▁here . ▁ ▁Until ▁early ▁ 2 0 0 9 , ▁England ▁Hockey ▁was ▁based ▁at ▁the ▁former , ▁purpose - built , ▁former ▁England ▁National ▁Hockey ▁Stadium ▁in ▁Mil ton ▁Ke yn es , ▁but ▁the ▁cost ▁of ▁running ▁the ▁stad ium ▁was ▁one ▁of ▁the ▁factors ▁that ▁led ▁to ▁the ▁dem ise ▁of ▁the ▁English ▁Hockey ▁Association . ▁The ▁ground ▁was ▁le ased ▁to ▁W im ble don ▁( l ater ▁Mil ton ▁Ke yn es ▁D ons ) ▁football ▁club ▁in ▁ 2 0 0 3 ▁and ▁has ▁not ▁been ▁used ▁for ▁hockey ▁since ▁then . ▁On ▁ 1 7 ▁December ▁ 2 0 0 9 , ▁demol ition ▁of ▁the ▁stad ium ▁began , ▁the ▁site ▁is ▁now ▁used ▁for ▁a ▁new ▁national ▁H Q ▁for ▁Network ▁Rail . ▁ ▁Compet itions ▁England ▁Hockey ▁runs ▁a ▁series ▁of ▁senior ▁compet itions ▁over ▁the ▁course ▁of ▁a ▁year : ▁▁ ▁Le agues ▁▁ ▁Men ' s ▁England ▁Hockey ▁League ▁ ▁Women ' s ▁England ▁Hockey ▁League ▁ ▁Women ' s ▁Out door ▁ ▁England ▁Hockey