| Season | Team | Competition | MP | G | A | Rating | ||
|---|---|---|---|---|---|---|---|---|
| 2024/2025 | Sion | Schweizer Pokal | 0 | 0 | 0 | 0 | 0 | – |
| 2023/2024 | Sion | Schweizer Pokal | 4 | 2 | 0 | 0 | 0 | – |
| 2022/2023 | Sion | Schweizer Pokal | 1 | 0 | 0 | 0 | 0 | – |
| 2022/2023 | Lugano | Schweizer Pokal | 1 | 0 | 0 | 0 | 0 | – |
| 2021/2022 | Lugano | Schweizer Pokal | 5 | 0 | 0 | 0 | 0 | – |
| 2020/2021 | Lugano | Schweizer Pokal | 1 | 0 | 0 | 0 | 0 | – |
| 2019 | Dallas | US Open Cup | 1 | 1 | 0 | 0 | 0 | – |
| 2018 | Dallas | US Open Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2017/2018 | Luzern | Schweizer Pokal | 1 | 0 | 0 | 1 | 0 | – |
| 2016/2017 | Sion | Schweizer Pokal | 5 | 1 | 0 | 0 | 0 | – |
| 2015/2016 | Sion | Schweizer Pokal | 3 | 0 | 0 | 0 | 0 | – |
| 2014/2015 | Sion | Schweizer Pokal | 3 | 0 | 0 | 1 | 0 | – |
| 2013/2014 | Sassuolo | Coppa Italia | 1 | 0 | 0 | 0 | 0 | – |
| 2012/2013 | Fenerbahce | Cup | 2 | 0 | 0 | 0 | 0 | – |
| 2012/2013 | Lokomotiv Moscow | Cup | 1 | 0 | 0 | 0 | 0 | – |
| 2011/2012 | Fenerbahce | Cup | 4 | 0 | 0 | 0 | 0 | – |
| 2010/2011 | Sampdoria | Coppa Italia | 2 | 0 | 0 | 0 | 0 | – |
| 2009/2010 | Sampdoria | Coppa Italia | 1 | 0 | 0 | 0 | 0 | – |
| Total | 37 | 4 | 0 | 2 | 0 | – | ||
| Date | From | To | Type | |
|---|---|---|---|---|
| 09 Jan 2004 | Grasshoppers | Tottenham Hotspur | Transfer | |
| 08 Jan 2005 | Tottenham Hotspur | Hamburger SV | Loan | |
| 01 Feb 2006 | Tottenham Hotspur | Wigan Athletic | Loan | |
| - | Tottenham Hotspur | Sampdoria | Loan | |
| 07 Jan 2007 | Tottenham Hotspur | Sampdoria | Transfer | |
| 07 Jan 2011 | Sampdoria | Juventus FC | Free Transfer | |
| - | Juventus FC | Fenerbahçe | Loan | |
| 09 Jun 2012 | Juventus FC | Lokomotiv Moskva | Loan | |
| - | Juventus FC | Fenerbahçe | Loan | |
| 07 Jan 2013 | Fenerbahçe | Juventus FC | Back from Loan | |
| - | Juventus FC | Sassuolo | Loan | |
| 07 Jan 2014 | Sassuolo | Juventus FC | Back from Loan | |
| 01 Jan 2015 | Juventus FC | Sion | Free Transfer | |
| - | Sion | Luzern | Free Transfer | |
| 02 Jul 2018 | Luzern | Dallas | Free Transfer | |
| - | Dallas | Lugano | Free Transfer | |
| - | Lugano | Sion | Free Transfer |
R. Ziegler career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.