The 1991 Open Championship was a men's major golf championship and the 120th Open Championship, held from 18 to 21 July at Royal Birkdale Golf Club in Southport, England. Ian Baker-Finch won his only major championship, two strokes ahead of runner-up Mike Harwood. Baker-Finch was two-over after two rounds in a tie for 28th place, then was ten-under on the weekend. His 66 on Sunday was bolstered by a 29 on the front nine, with birdies on five of the first seven holes. The cut at 148 (+8) included those within ten strokes of the lead, which resulted in a record 113 players on the weekend, nearly three-quarters of the field.

Course

Source: Lengths of the course for previous Opens (since 1950):

Round summaries

First round

Thursday, 18 July 1991 Source:

Second round

Friday, 19 July 1991 Source: Amateurs: Mickelson (+4), Payne (+4), Allenby (+9), Roblin (+11), Coltart (+13), Evans (+13), Muntz (+14), Wilshire (+15).

Third round

Saturday, 20 July 1991 Source:

Final round

Sunday, 21 July 1991 Source: Amateurs: Payne (+4), Mickelson (+8)