Could've Been by Tiffany first appeared on the Israeli foreign-music chart on 24 Jan 1988, entering at #21. It peaked at #21 on 24 Jan 1988. In total it spent 3 weeks on the chart, last charting on 7 Feb 1988.
| Wk | Date | Pos |
|---|---|---|
| 1 | 24 Jan 1988 | 21 |
| 2 | 31 Jan 1988 | 26 |
| 3 | 7 Feb 1988 | 28 |