In the first year, he played in 2008; he won South Atlantic League Pitching in the Triple Crown. He has made the major league of 2009 in Giants. he started the season in 2010, in minor leagues and he was called up the midway in the season and in the wound up and he became a youngest left handed pitcher while throwing eight scoreless in the innings in World series and he was in Giants and he won 2010 World Series.

In the year 2014, he set the career with high number of wins and he won 18 and he was a third World Series when he was in Giant. After following one of most dominant postseason for World Series pitching performance in the modern MLB history, he got name Most valuable Player in 2014 and of Sports Illustrated Sportsman of the same year.

According to his biography, he was born in the year 1989 in the Hickory in the North Carolina and he grew up in the area in ten miles away nicknamed Bumtown and this was because of many people who are called Bumgarner who had lived in the area for many years and they had the ancestors who came there and they were living in Germany. He grew up in the log house with the father called Kevin and the sleeping on the loft in the night. His first word was ball and at four years, he was playing in the youth baseball league. The father had to sign the waiver since a league was meant for the children who are between five up to eight years old. The parents were Debbie and Kevin and they divorced while in high school. However, Madison Bumgarner is not left handed for everything but just to throw the ball.

Madison Bumgarner is married to Ali Saunders and when it is during the off season he lives with the wife in a farm found in Dudley Shoals. He lived there as a young child and he grew up in the cabin which he built alone. He signed a contract which is worth 35 million dollars and it was for 5 years. It included 1 million as signing bonus and 35 million was guaranteed. It has around 7,000,000 dollars as a salary. In 2016, he was expecting the extension of his contract with Giants. His twitter account is @4giant40. People who talk about him use #bumgarner.