Kresic, 30, joins Leverkusen as a free agent after seeing his short-term deal with Mainz come to an end.
"Bayer Leverkusen is a fantastic club that has played a lot in European club competitions in recent years," the shot-stopper told the club's official website.
"It's a big challenge for me helping the club fulfil its ambition."
Kresic has won one cap for the Croatian national team.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Bayern MunichBayern | 5 | 4 | 1 | 0 | 17 | 4 | 13 | 13 |
| 2 | Eintracht FrankfurtFrankfurt | 5 | 4 | 0 | 1 | 11 | 6 | 5 | 12 |
| 3 | RB Leipzig | 5 | 3 | 2 | 0 | 8 | 2 | 6 | 11 |
| 4 | Bayer LeverkusenB. Leverkusen | 5 | 3 | 1 | 1 | 14 | 10 | 4 | 10 |
| 5 | Borussia DortmundDortmund | 5 | 3 | 1 | 1 | 11 | 9 | 2 | 10 |
| 6 | Heidenheim | 5 | 3 | 0 | 2 | 10 | 7 | 3 | 9 |
| 7 | Freiburg | 5 | 3 | 0 | 2 | 8 | 7 | 1 | 9 |
| 8 | Stuttgart | 5 | 2 | 2 | 1 | 14 | 10 | 4 | 8 |
| 9 | Union BerlinUnion Berlin | 5 | 2 | 2 | 1 | 4 | 3 | 1 | 8 |
| 10 | Werder Bremen | 5 | 2 | 2 | 1 | 8 | 11 | -3 | 8 |
| 11 | Augsburg | 6 | 2 | 1 | 3 | 9 | 15 | -6 | 7 |
| 12 | Borussia MonchengladbachBorussia M'bach | 6 | 2 | 0 | 4 | 7 | 10 | -3 | 6 |
| 13 | Mainz 05Mainz | 5 | 1 | 2 | 2 | 8 | 10 | -2 | 5 |
| 14 | Wolfsburg | 5 | 1 | 1 | 3 | 10 | 11 | -1 | 4 |
| 15 | St Pauli | 5 | 1 | 1 | 3 | 4 | 6 | -2 | 4 |
| 16 | Hoffenheim | 5 | 1 | 0 | 4 | 9 | 15 | -6 | 3 |
| 17 | VfL BochumVfL Bochum | 5 | 0 | 1 | 4 | 5 | 11 | -6 | 1 |
| 18 | Holstein Kiel | 5 | 0 | 1 | 4 | 7 | 17 | -10 | 1 |
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