Raza, who has flattered to deceive in the international stage, served a notice to the selectors showing plenty of maturity holding the innings together scoring an unbeaten 100 even as wickets tumbled around him as Pakistan were finally all out for 270, giving the tourists a vital 79-run first innings lead.
He cracked nine boundaries and three sixes.
For Zimbabwe 'A', Allen Mwanyenga bowled his heart out claiming four wickets to restrict Pakistan to a total less than the three-hundred mark.
Zimbabwe 'A' were bowled out for 191 runs in their first innings.
Batting second time, Zimbabwe 'A' started their second innings on a dismal note start losing Trevor Gripper (4) and Mark Vermeulen (1) cheaply.
Neil Ferreira who belted a fine half-century in the first essay, looked good again and remained unconquered on 28 when stumps were drawn. Blessing Mahwire came into bat at the fall of the second wicket but did not have to bat as bad light ended play prematurely.
Zimbabwe 'A' were 63/3 at stumps.
Brief Scores: Zimbabwe 'A' First Innings: 191 all out. Pakistan 'A' First Innings: 270 all out. Zimbabwe 'A' Second Innings: 235 all out.