Competitors use axes to chop wood during the 61st Lumberjack World Championships in Hayward, Wisconsin, the United States, on July 31, 2021. The championships held here showcased lumberjacks and lumberjills competing in sawing, chopping, speed climbing, log rolling, and boom-running. (Photos: Xinhua)

Participants compete in climbing during the 61st Lumberjack World Championships in Hayward, Wisconsin, the United States, on July 31, 2021. The championships held here showcased lumberjacks and lumberjills competing in sawing, chopping, speed climbing, log rolling, and boom-running.

A man uses a crosscut saw to cut wood during the 61st Lumberjack World Championships in Hayward, Wisconsin, the United States, on July 31, 2021. The championships held here showcased lumberjacks and lumberjills competing in sawing, chopping, speed climbing, log rolling, and boom-running.

A woman uses a crosscut saw to cut wood during the 61st Lumberjack World Championships in Hayward, Wisconsin, the United States, on July 31, 2021. The championships held here showcased lumberjacks and lumberjills competing in sawing, chopping, speed climbing, log rolling, and boom-running.

A man uses a hot saw to cut wood during the 61st Lumberjack World Championships in Hayward, Wisconsin, the United States, on July 31, 2021. The championships held here showcased lumberjacks and lumberjills competing in sawing, chopping, speed climbing, log rolling, and boom-running.

A woman reacts during the 61st Lumberjack World Championships in Hayward, Wisconsin, the United States, on July 31, 2021. The championships held here showcased lumberjacks and lumberjills competing in sawing, chopping, speed climbing, log rolling, and boom-running.