Day 1 in numbers - US Open Championship

The best facts and figures from the opening round of the second major of the season, US Open Championship at Shinniecock Hills.

80- McIlroy's highest ever Major round.

4- Number of players finishing Day One under par, the fourth lowest since 2000.

76.48- The average opening round score was the second toughest in Major Championship history.

+1089- The combined total to par for the field, making it the fifth toughest round in Major Championship history.

199- The number of double-bogeys or worse on the opening round.

14- The 536 yard par four played the toughest on Day One, +0.8 over par.

14- Nobody hit more greens than Henrik Stenson on his way to an opening round 71.

92- The score of Englishman Scott Gregory, the highest in Championship history since 1992.

411- On his Major debut South African Dean Burmester holed out from the 18th fairway after hitting a 411 yard drive.

7.4- Dustin Johnson's strokes gained versus the field.