In 1920, during his second season with the team, Rumler was given a five-year suspension from the PCL after being accused of throwing games for gamblers.

[5] On June 22, in a game against the Philadelphia Athletics, Rumler collided with the fence at Sportsman's Park, and was knocked unconscious.

On June 30, 1914, the St. Louis Browns sold Rumler to the Montgomery Rebels of the Class-A Southern Association.

[9] At the start of the 1915 season, Crackers manager William Smith stated that he was going to use Rumler primarily as an outfielder.

His home run total tied him for fourth in the Southern Association with Tim Hendryx, and Red McDermott.

After the season, Rumler participated in a charity game with semi-professional baseball players in Lincoln, Nebraska.

On April 20, Rumler drove in the winnings runs in the top of the ninth inning during a game against the Cleveland Indians.

[15] Through July 3, Rumler had the third-highest batting average in the American League, behind Earl Hamilton, and Babe Ruth.

[17] He hit his first, and only MLB home run on September 21, against New York Yankees pitcher George Mogridge.

[19] In 1918, Rumler was sold by the St. Louis Browns to the minor league Columbus Senators of the Double-A American Association.

[20][23] He attained the rank of sergeant with the Army's 5th Company, 163rd Depot Brigade, in Iowa at Camp Dodge, mostly playing baseball.

A broken leg sustained during a game had not healed by the end of the war, and when Rumler was discharged in December he had yet to see action oversees.

[27][28] In January 1920, the St. Louis Browns, Rumler's former team, attempted to make a deal with the Salt Lake City Bees for him.

[33] According to Borton, Vernon manager Bill Essick had asked him if he could get any Salt Lake players to throw the pennant game.

[33] Borton stated that he got four players from the Salt Lake club, Rumler being one of them, to agree to throw games so that Vernon could win the PCL pennant.

[33] Rumler admitted to taking Borton's money, but claimed it was not a bribe, but a friendly bet on which team would win the series.

[40] Rumler was brought before a Los Angeles County grand jury in November 1920 on criminal conspiracy charges.

[46] The Bismarck Tribune called Rumler Minot's "big home run hitter and catcher".

[47] At the end of the season, it was rumored that Rumler was going to be able to return to the PCL Salt Lake City Bees.

[55] He eventually made it official when he re-signed with the Twin Sixies, and returned to his spot in center field.

[58] On December 4, 1928, Rumler's suspension from organized baseball was lifted, and he signed with the Hollywood Stars of the PCL.

[61] During the fourth game of the 1929 PCL pennant series against the Mission Reds, Rumler was struck in the head by a pitch, and knocked unconscious.

[65] In April, while on a train going to Oakland, California, Rumler had a nightmare, which caused him to kick his foot through the Pullman's window.

[70] As a member of the Clowns, he played a game against the House of David, a Negro league baseball team who represented Ogden, Utah.

[71] His last season in professional baseball would come in 1932, as the player-manager for the Lincoln Links of the Class-D Nebraska State League.