Grondreng is an Age of Empires II player from Denmark. Over time, Grondreng has accumulated 156 matches in Age of Empires II. The civilization Japanese is the most-played pick for Grondreng, chosen 69.9% of the time.

Grondreng's best win rate is 49.5% with Japanese in 93 matches. Grondreng is at their best on Arabia, winning 46.3% of 54 matches. As flank, Grondreng has won 57.1% of their 7 matches.

Grondreng's highest rating is 864 in the RM Team ladder. Over 37 RM Team games, Grondreng has won 45.9% of the time.