SELECT max(T1.HS) ,  pPos FROM player AS T1 JOIN tryout AS T2 ON T1.pID  =  T2.pID WHERE T1.HS  >  1000 GROUP BY T2.pPos
For each position, what is the maximum number of  hours for students who spent more than 1000 hours training?
SELECT max ( T1.HS ) , pPos FROM player AS T1 JOIN tryout AS T2 ON T1.pID = T2.pID WHERE T1.HS > 1000 GROUP BY T2.pPos
select max ( t1 . hs ) , ppos from player as t1 join tryout as t2 on t1 . pid = t2 . pid where t1 . hs > value group by t2 . ppos
For each position , what is the maximum number of hours for students who spent more than 1000 hours training ?