Education
Rumbelow attended Bullard High School in Bullard, Texas, and played college baseball at the Louisiana State University (Louisiana State University) for the Louisiana State University Tigers from 2011 to 2013.
Rumbelow attended Bullard High School in Bullard, Texas, and played college baseball at the Louisiana State University (Louisiana State University) for the Louisiana State University Tigers from 2011 to 2013.
He was drafted by the New York Yankees in the seventh round of the 2013 Major League Baseball Draft. Rumbelow made his professional debut with the Staten Island Yankees. He started 2014 with the Charleston RiverDogs and was promoted to the Tampa Yankees, Trenton Thunder and Scranton/Wilkes-Barre RailRiders during the season.
In total for the season, he was 5–2 with a 2.62 European Research Area and eight saves in 42 games consisting of 58 1⁄3 innings pitched.
After starting the 2015 season with Scranton/Wilkes-Barre, Rumbelow was promoted to the major leagues on June 22. He made his major league debut the next day, and was optioned to Scranton/Wilkes-Barre on July 8.