This is amazing from @MLBNetwork research. #Mariners have -5 run differential, going for 60th win in 100th game today. No team in MLB history has ever won 60+ of first 100 games with a negative run differential. The 1954 Brooklyn Dodgers had lowest RD of any 60+ win team (+14).

— Ken Rosenthal (@Ken_Rosenthal) July 22, 2018