According to the current form and statistics, the prediction for the match between Aarau and Thun in the Swiss Challenge League leans towards Thun. Thun is in 2nd place in the table, with 18 wins out of 29 matches and showing consistent performance, winning 4 out of the last 5 games. On the other hand, Aarau is in 6th position with less convincing stats: 10 wins, 12 losses, and 7 draws. In their last 5 matches, Aarau had 3 losses and conceded 10 goals, indicating defensive issues. Considering these factors, the likelihood of Thun winning appears to be higher.