1961 – In the first of two with the Senators, Roger Maris belts his 44th homer to tie Mickey Mantle. An inning later, Mantle hits a Bennie Daniels offering for his 45th, but that’s all Daniels allows, winning, 12 – 2. Maris adds his 45th homer in the 1st inning in game two as the Yanks win, 9 – 4.

This Day In Baseball

On August 13, 1961 — 1961 – In the first of two with the Senators, Roger Maris belts his 44th homer to tie Mickey Mantle. An inning later, Mantle hits a Bennie Daniels offering for his 45th, but that’s all Daniels allows, winning, 12 – 2. Maris adds his 45th homer in the 1st inning in game two as the Yanks win, 9 – 4.

Source:
Baseball Reference August 13
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game