So far this season there have been 26 hole-in-ones on the PGA and European Tours, with Open Championship participants Dustin Johnson and Tom Watson making the most recent at odds of 66/1 and 500/1 respectively.
2011 Hole-in-Ones:
Phoenix Open: Jared Lyle (200/1)
Dubai Desert Classic: David Howell (80/1), Keith Horne (200/1), Raphael Jacquelin (150/1), Alvaro Quiros (16/1)
Pebble Beach: Nick O'Hern (200/1), Sung-Hoon Kang (300/1)
Avantha Masters: Maarten Lafeber (100/1)
Transitions Championship: Cameron Tringale (250/1), Scott Stallings (500/1)
Andalucia Open: Julio Zapata (250/1)
Hassan Trophy: David Horsey (50/1)
The Heritage: Daniel Summerhays (500/1)
Iberdrola Open: Mark Brown (150/1), Erik Tag Johansson (250/1)
Crowne Plaza Invitational at Colonial: Jim Furyk (28/1)
Saab Wales Open: Eliot Saltman (200/1)
The Memorial Tournament: Steve Stricker (28/1)
BMW Italian Open: Rafa Echenique (125/1) Marcus Fraser (50/1)
Saint-Omer Open: David Dixon (28/1)
BMW International Open: Alexander Knappe (750/1)
Travelers Championship: DJ Brigman (500/1), Nate Smith (500/1)
Open Championship: Dustin Johnson (66/1), Tom Watson (500/1)