You won 10 5-point matches???????? WOW! Interesting...... And it says you play like a beginner? So your luck should be huge in these 10 5-point games! But this is really impossible (or very difficult) to have in at least 50 games, a huge luck........
On what level GNUBG was playing........? It offers a strong opponent at Expert, World class and above. Advanced or below is just bad (or not so good)..........