» September 2, 1909:
Boston's Cliff Curtis pitches his first ML game and beats the Pirates, 10.
» May 22, 1911: Boston (National League) hurler Cliff Curtis sets a ML mark by losing his 23rd consecutive game. The streak began on June 13, 1910.
» June 10, 1911:
The Cubs trade C Johnny Kling, P Orlie Weaver, P Hank Griffin, and OF Al Kaiser to the Braves for C Peaches Graham, P Cliff Curtis, Wilbur "Lefty" Good, and OF Bill Collins. Curtis (1–8), who began the year with five straight losses after ending last season with 18 straight defeats, will be swapped to the Phillies in August.
» May 4, 1912: In New York the Giants pilfer nine bases on catcher George Graham in a 4–3 win over the Phils. Christy Mathewson is the winner over Cliff Curtis. Matty allows five hits, but his two base on balls score in the 8th when he serves up a homer to Tom Downey. Phils 3B Hans Lobert, one of the fastest men in the game, chases a foul ball into the stands and breaks his kneecap.
» June 23, 1913: Before 25,000 at the Polo Grounds, the Giants split with Brooklyn, losing the opener in 10 innings, 4–2, and winning the 2nd, 5–1. Christy Mathewson walks none in beating Cliff Curtis in the 2nd.