BUENOS AIRES (AFP) - Afghanistan booked their place in April's qualifying event for the 2011 World Cup on Saturday when they defeated the Cayman Islands by 82 runs to finish top of the World Cricket League Division Three. Uganda beat Argentina by 99 runs to secure the second ticket to the qualifying round which will take place in South Africa. Papua New Guinea, who also finished with eight points, missed out on qualifying on run rate. Afghanistan were only affiliated to the International Cricket Council (ICC) in 2001 and many of their players learnt the game as refugees living in Peshawar in neighbouring Pakistan. In April's qualifier, Afghanistan and Uganda will join Kenya, Scotland, Netherlands, Canada, Ireland, Bermuda UAE, Oman, Namibia and Denmark and battle for the four places available at the 2011 World Cup. A place in the top six will guarantee one-day international status for the next four years. The success here represented Afghanistan's third successive promotion. They won the Division 4 event in Tanzania last year by defeating Hong Kong by 57 runs and the Division 5 event in Jersey by beating the hosts by two wickets in the final. Afghanistan posted 230-8 in 50 overs after being put into bat with skipper Norooz Mangal leading the way with 70 and Asghar Stanikzai making 66 not out. The Cayman Islands were bowled out for 148 with Mohammad Nabi taking 4-23. "This is a very big day in the history of Afganistan cricket," said Norooz. "It will be very hard work in South Africa and we will be playing against some very difficult teams but I think if we all work very hard in the next few months we have a very good chance of making it to the World Cup." The Afghanistan top order struggled at the start with Karim Khan and Ahmad Shah both falling to leave their side at 27-2. A 69-run partnership for the third wicket between Shafiqullah Shafaq (39) and Norooz (70) then changed the balance of the game. Norooz, restored to the side after a two-match ban, hit seven fours in his 89-ball cameo. Asghar Stanikzai's 66 came off just 62 balls, and he completed the innings with a six over long-on to give Afghanistan the highest score of the tournament. In reply, a double strike from Nabi in the space of one over left Cayman Islands on 41-3 and they were always struggling from that point.Uganda struggled to 182 all out before Argentina were dismissed for a paltry 83 to slump to their fifth defeat in five matches. The Caymans and Argentina are both relegated to Division 4.