The PTT Cup is a professional tennis tournament played on hard court. It is currently part of the ATP Challenger Tour. It is held annually in Istanbul, Turkey.
| PTT İstanbul Cup | |
|---|---|
 2013 PTT Cup | |
| ATP Challenger Tour | |
| Event name | Istanbul |
| Location | Istanbul, Turkey |
| Category | ATP Challenger Tour |
| Surface | Hard |
| Draw | 32S/17Q/16D |
| Prize money | €42,500 |
| Website | Website |
Past finals edit
Singles edit
| Year | Champion | Runner-up | Score |
|---|---|---|---|
| 2013 |  Benjamin Becker |
 Dudi Sela |
6–1, 2–6, 3–2 ret. |
Doubles edit
| Year | Champions | Runners-up | Score |
|---|---|---|---|
| 2013 |  James Cluskey Fabrice Martin |
 Brydan Klein Ruan Roelofse |
3–6, 6–3, [10–5] |