What You Won't Do for Love by Bobby Caldwell first appeared on the Israeli foreign-music chart on 19 Mar 1979, entering at #40. It peaked at #35 on 2 Apr 1979. In total it spent 3 weeks on the chart, last charting on 2 Apr 1979.
| Wk | Date | Pos |
|---|---|---|
| 1 | 19 Mar 1979 | 40 |
| 2 | 26 Mar 1979 | 37 |
| 3 | 2 Apr 1979 | 35 |