Italian Open first edition
1925

Multiple winners
4 victories:
Auguste Boyer (1926, 28, 30, 31)
Flory van Donck (1938, 47, 53, 55)
2 successi:
Percy Alliss (1929, 35)
Ugo Grappasonni (1950, 54)
Bernhard Langer (1983, 97)
Sandy Lyle (1984, 92)
Sam Torrance (1987, 95)
Ian Poulter (2000, 02)

Consecutive victories
Auguste Boyer (1930, 31)
Flory van Donck (1938, 47) (from 1939 to 1946 the tournament was not held because of World War II)

Youngest winners
Francesco Molinari, aged 23,180 days (2006)
Baldovino Dassù, aged 23, 335 days (1976)
(Note: statistics start from 1972, when the Italian Open was admitted among the European Tour tournaments. August Boyer won the 1926 edition, he was 18).

Oldest winner
Billy Casper, aged 44, 248 days (1975)

18 hole lowest score
61 (-11), Ian Poulter, Angel Cabrera (2002, Olgiata) 

Lowest on the first 18 holes
61 (-11), Ian Poulter (2002, Olgiata)

Lowest on the first 36 holes
128 (-16), Ian Poulter (2002, Olgiata)

Lowest on the first 54 holes
194 (-22), Hennie Otto (2008, Tolcinasco)

Lowest on 72 holes
263 (-25), Hennie Otto (2008, Tolcinasco)
265 (-23), Francesco Molinari (2006, Tolcinasco)

Lowest of a win
263 (-25), Hennie Otto (2008, Tolcinasco)
265 (-23), Francesco Molinari (2006, Tolcinasco)
(Note: statistics of the European Tour do not take into account the 262 score with which Percy Alliss won in Sanremo in 1935, that is also the lowest on 72 holes)

Lowest on the last round of winner 65 (-7)
Mathias Grönberg (2003, Gardagolf)
Graeme McDowell (2004, Tolcinasco)
Francesco Molinari (2006, Tolcinasco)

Winners leading from first round
Baldovino Dassù (1976, Is Molas)
José Maria Cañizares (1981, Milan)
Sam Torrance (1987, Monticello)
Richard Boxall (1990, Milan)

Highest advantage of a winner after 18 holes
4 strokes ? Sam Torrance (1987, Monticello) 

Highest advantage of a winner after 36 holes
7 strokes ? Richard Boxall (1990, Milan)

Highest advantage of a winner after 54 holes
5 strokes ? Dale Hayes (1978, Pevero);
Richard Boxall (1990, Milan)

Highest advantage on runner up
8 strokes ? Baldovino Dassù (1976, Is Molas)

Highest ever difference between the winner and runner-up before the final round
6 strokes ? Jim Payne (1996, Bergamo)

Play-offs (8)
Angel Gallardo b Brian Barnes (1977, Monticello)
Brian Barnes b Dale Hayes (1979, Monticello)
José Maria Cañizares b Bobby Clampett (1981, Milan)
Bernhard Langer b Seve Ballesteros e Ken Brown (1983, Florence)
David Feherty b Ronan Rafferty (1986, Albarella)
Sam Torrance b José Rivero (1987, Monticello)
Graeme McDowell b Thomas Levet (2004, Tolcinasco)
Gonzalo Fernandez Castaño b Markus Brier (2007, Tolcinasco)

?Holes in one?
21

Lowest cut
140 (-4) (1998, Castelconturbia, 2006, 2007 and 2008, Tolcinasco)

Highest cut
166 (+22) (1976, Is Molas)

Venues that have hosted the tournament more frequently
Villa d?Este (12 editions), Monticello (7), Milan (6), Sanremo (5), Is Molas and Castello di Tolcinasco (5), Stresa, Rome and Venice (3), Castelconturbia (2).