The Masters Tournament at Augusta National is more than a month away. So far, 85 golfers have qualified to participate in the 2017 event.

2016 champion Danny Willett is one of 18 winners who have qualified for entry into the 81st Masters, which tees off April 6 through 9 in Augusta.

Last year’s Masters field consisted of 89 players, the fewest players since 2002.

The Masters is an invitation tournament, but players must qualify under one of these criteria.  Yet to be named are the international invitees and the qualifiers of the Official World Golf Ranking list as of March 27. Here are the 85 names - and the qualifying reason - that have so far earned an invitation:

Masters Tournament Champions 

Angel Cabrera

Fred Couples

Trevor Immelman

Zach Johnson

Bernhard Langer

Sandy Lyle

Phil Mickelson

Larry Mize

Mark O’Meara

Jose Maria Olazabal

Charl Schwartzel

Adam Scott

Vijay Singh

Jordan Spieth

Bubba Watson

Mike Weir

Danny Willett

Tiger Woods

U.S. Open champions (Five-year exemption) 

Dustin Johnson

Justin Rose

Martin Kaymer

Webb Simpson

British Open Champions (Five-year exemption) 

Ernie Els

Rory McIlroy

Henrik Stenson

By Jennifer Brett

PGA Champions (Five-year exemption) 

Jason Dufner (4, 15, 16)

Jason Day (4, 5, 11, 14, 15, 16, 17)

Jimmy Walker (4, 16, 17)

Players Championship Winners (Three-year exemption) 

Rickie Fowler

Top two finishers of U.S. Amateur Championship 

Curtis Luck

Brad Dalke

British Amateur Champion winner 

Scott Gregory

Latin America Amateur Champion 

Toto Gana

U.S. Mid-Amateur Champion 

Stewart Hagestad

Top 12 finishers (including ties) in previous year’s Masters 

Daniel Berger

Paul Casey

Matthew Fitzpatrick

J.B. Holmes

Soren Kjeldsen

Hideki Matsuyama

Brandt Snedeker

Lee Westwood

Top four finishers (including ties) in previous year’s U.S. Open 

Jim Furyk

Shane Lowry

Scott Piercy

Top four finishers (including ties) in previous year’s British Open 

Steve Stricker

Top four finishers (including ties) in previous year’s PGA Championship 

Branden Grace

Brooks Koepka

Daniel Summerhays

Winners of non-opposite PGA Tour events since previous Masters (events that award a full-point for the FedEx Cup)

Sergio Garcia

James Hahn

Charley Hoffman

Mackenzie Hughes

Billy Hurley III

Si Woo Kim

Russell Knox

William McGirt

Ryan Moore

Rod Pampling

Pat Perez

Jon Rahm

Patrick Reed

Brendan Steele

Brian Stuard

Hudson Swafford

Justin Thomas

Jhonattan Vegas

Qualifiers for 2016 Tour Championship 

Roberto Castro

Kevin Chappell

Emiliano Grillo

Kevin Kisner

Matt Kuchar

Sean O'Hair

Kevin Na

Gary Woodland

Top 50 on final 2016 Official World Golf Ranking

An Byeong-hun

Rafael Cabrera Bello

Bill Haas

Tyrrell Hatton

Yuta Ikeda

Francesco Molinari

Alex Noren

Louis Oosthuizen

Thomas Pieters

Andy Sullivan

Bernd Wiesberger

Chris Wood