Played as the PNC Father/Son Challenge (Dec 9-11; post-season 36-hole scramble event). Second-placed Stewart & Connor Cink (USA) finished 1 shot behind David Duval (USA) and his stepson Nick Karavites (USA). [Ritz-Carlton GC, Grande Lakes, Orlando, FL].

The Open Championship (130th) (July 19-22). Second-placed Niclas Fasth (Swe) finished 3 shots behind Duval (USA). [Royal Lytham & St Annes GC, nr Blackpool, Lancs].

Played as the Dunlop Phoenix Tournament (Nov 8-11; Japan Tr event). Duval (USA) beat Taichi Teshima (Jpn) with a birdie at the first playoff hole (par-5 18th) to claim his first and only Japan Tour win. [Phoenix CC, Miyazaki, Japan].

Played as the Buick Challenge (Sep 28-Oct 1). Second-placed Jeff Maggert (USA) and Nick Price (Zim) finished 2 shots behind David Duval (USA). [Mountain View course, Callaway Gdns Resort, Pine Mtn, GA].

Played as The Players Championship (March 25-28). Second-placed Scott Gump (USA) finished 2 shots behind Duval (USA), who recorded his tenth PGA Tour win. [Stadium Course, TPC Sawgrass, Ponte Vedra Beach, FL].

Played as the Franklin Templeton Shark Shootout (Nov 12-14; played over three rounds: 1-alternate shot; 2-better ball; 3-scramble). Second-placed team of Scott McCarron (USA) & Scott Hoch (USA) finished 6 shots behind Fred Couples (USA) & David Duval (USA). [Sherwood CC, Thousand Oaks, nr LA, Calif.].

Played as the Mercedes Championships (Jan 7-10; PGA Tour season opener). Second-placed Billy Mayfair (USA) and Mark O'Meara (USA) finished 9 shots behind Duval (USA). [Plantation Course, Kapalua Resort, Maui, Hawaii].

Played as the BellSouth Classic (Apr 1-4). Second-placed Stewart Cink (USA) finished 2 shots behind Duval (USA), who recorded his tenth PGA Tour win. [TPC Sugarloaf, Duluth, Georgia].

Played as the Bob Hope Chrysler Classic (Jan 20-24). Second-placed Steve Pate (USA) finished 1 shot behind Duval (USA), who became only the third player (after Al Geiberger in 1977 and Chip Beck in 1991) to shoot a sub-60 round in a PGA Tour event. Duval's 13-under-par 59 came in the final round, and included an eagle at the par-5 18th hole. [Palmer (private) course, PGA West, La Quinta, CA. Earlier rounds also at: Bermuda Dunes CC; Indian Wells CC; Tamarisk CC].

Duval (USA) won the PGA Tour Byron Nelson Award, recording the season's lowest scoring average (over a minimum of 50 rounds). Tiger Woods (USA) was second with 69.21; Davis Love III (USA) was third with 69.41.

Played as the Shell Houston Open (April 30-May 3). Second-placed Jeff Maggert finished 1 shot behind David Duval (USA), who shot a final round 8-under par 64 to claim his fifth PGA Tour win. [Tournament course (known as TPC at The Woodlands), Woodlands CC, nr Houston, TX].

Played as the Michelob Championship at Kingsmill (Oct 8-11). Second-placed Phil Tataurangi (NZ) finished 3 shots behind defending champion David Duval (USA). [River course, Kingsmill Resort, Williamsburg, VA].

Duval (USA) won the PGA of America Vardon Trophy, recording the season's lowest scoring average on the PGA Tour (over a minimum of 60 rounds). Tiger Woods (USA) was second with 69.21; Davis Love III (USA) was third with 69.41.

Duval (USA) won the Arnold Palmer Award as the PGA Tour 1998 leading money winner, with earnings of $2,591,031 on the Tour. Vijay Singh (Fiji) was second with $2,238,998; Jim Furyk (USA) was third with $2,054,334.

Played as the Tucson Chrysler Classic (Feb 19-22). Second-placed Justin Leonard (USA) and David Toms (USA) finished 4 shots behind David Duval (USA). [Catalina course, Tucson National Resort, Tucson, AZ].

Played as the NEC World Series of Golf (Aug 27-30; replaced in 1999 by the inaugural WGC-NEC Invitational). Second-placed Phil Mickelson (USA) finished 2 shots behind David Duval (USA). [South course, Firestone CC, Akron, Ohio].

Played as the Walt Disney World/Oldsmobile Classic (Oct 16-19). David Duval (USA) beat Dan Forsman (USA) with a par at the first playoff hole. This was Duval's second PGA Tour win, coming just one week after his first (also a playoff win). [Magnolia course, Walt Disney World, Orlando, FL. Earlier rounds also played on the Palm course].

Played as the Michelob Championship at Kingsmill (Oct 9-12). 25-year-old David Duval (USA) beat Grant Waite (NZ) and Duffy Waldorf (USA) with a birdie at the first playoff hole, to record his first PGA Tour win. [River course, Kingsmill Resort, Williamsburg, VA].

Played as the Tour Championship (Oct 30-Nov 2). Second-placed Jim Furyk (USA) finished 1 shot behind Duval (USA), who recorded his third PGA Tour win, all three coming in the space of just one month. [Cypress Creek course, Champions GC, Houston, TX].

Played as the U.S. Junior Amateur Championship. Duval (USA) beat Austin Maki (USA) by 1 hole in the final. [Oak Glen course, Sycuan Resort, El Cajon, nr San Diego, CA; at the time known as Singing Hills GC].