|Date of birth||24 May 1988|
|Place of birth||Tel Aviv, Israel|
|–||Maccabi Tel Aviv|
|2006–2010||Maccabi Tel Aviv||0||(0)|
|2007–2009||→ Hapoel Marmorek||7||(0)|
|* Senior club appearances and goals counted for the domestic league only|
Hadani was brought up through the ranks of Maccabi Tel Aviv and joined the senior team as a third goalkeeper in 2006, while still playing as starting goalkeeper for the club's youth team. In 2007–08 and 2008–09 Hadani was loaned to Hapoel Marmorek, but played only a handful of matches, as he was conscripted to the Israel Defense Forces.
Hadani represented Israel with the national U-19 team and U-17 team and was part of the U-17 team in the 2005 UEFA European Under-17 Championship, playing in two of the team's matches in the championship.
- Not All of Them Are Bibras Natkho: A Journey After the Lost Generations Ofir Sa'ar, 1 September 2015, Walla! (in Hebrew)
- National Team Player Details – Guy Hadani IFA (in Hebrew)