The Cardinals commit 17 errors in a doubleheader loss to the Reds, 10 – 2 and 13 – 7, to tie a modern major league record.
On July 3, 1909 The Cardinals commit 17 errors in a doubleheader loss to the Reds, 10 – 2 and 13 – 7, to tie a modern major league record. Source Baseball Reference July 3