| Home | Teams and Players | Homerun Kings | Top Salaries | Most Runs Batted In | Hall of Fame |
| Name | Mac Williamson |
| Given Name | Johnathan Mackensey |
| Birth Date | 1990-7-15 |
| Birth City | Jacksonville, FL |
| Height | 6'4" |
| Weight | 240 lbs. |
| Batting Hand | Right |
| Pitching Hand | Right |
| Alive | Yes |
| Age | 35 |
| Year | Team | Hits | At Bats | Home Runs | Runs Batted | Batting Average | Wins | Losses | # of Pitching Games | Strikeouts | # of Shutouts |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2015 | San Francisco Giants | 7 | 32 | 0 | 1 | 0.21875 | |||||
| 2016 | San Francisco Giants | 25 | 112 | 6 | 15 | 0.223214 |
| Year | Position | Errors | Double Plays | Assists |
|---|---|---|---|---|
| 2015 | Outfielder | 0 | 0 | 0 |
| 2016 | Outfielder | 2 | 0 | 1 |