What do you think will happen when you run these 2 snippets of code? They both looks quite similar at the first sight, don’t they. This one var results = new List<SomeClass>(); mylist.ForEach(async item => { var result = await SomeDbQueryAsync(item); results.Add(result); }); versus this one var results = new List<SomeClass>(); foreach(var item in mylist) …