The first day of NBA free agency was one of the wildest in recent memory, as roughly $3 billion — yes, billion — in new contract money was agreed to.

The biggest contract agreements included Klay Thompson (five years, $190 million with Golden State), Tobias Harris (five years, $180 million with Philadelphia), Khris Middleton (five years, $178 million with Milwaukee) and Kevin Durant (four years, $164 million with Brooklyn).

There were also a handful of contract extensions agreed to, including Portland's Damian Lillard (four years, $196 million) and Denver's Jamal Murray (reportedly five years, $170 million).

Additional contract agreements included: