Blood vs. Water Final Four

Clues

1. 1.Monica Culpepper and the 34-year-old finished 1 place apart.
2. 2.Tyson Apostol finished 1 place ahead of the 42-year-old.
3. 3.The 43-year-old is either the castaway who finished 3rd or Tyson Apostol.
4. 4.The castaway who finished 3rd is either Gervase Peterson or Tyson Apostol.
5. 5.Neither the 43-year-old nor the castaway who finished 2nd is Tyson Apostol.