Song: "Open Up Your Heart"
Artist: Rainbow
Peak position on the Cashbox Singles chart: #105
Number of weeks on the Cashbox Singles chart: 8
(0 weeks in the Top 100)
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| March 25, 1972 | 125 | Open Up Your Heart | Rainbow | Evolution 1056 |
| April 1, 1972 | 123 | Open Up Your Heart | Rainbow | Evolution 1056 |
| April 8, 1972 | 118 | Open Up Your Heart | Rainbow | Evolution 1056 |
| April 15, 1972 | 112 | Open Up Your Heart | Rainbow | Evolution 1056 |
| April 22, 1972 | 105 | Open Up Your Heart | Rainbow | Evolution 1056 |
| April 29, 1972 | 107 | Open Up Your Heart | Rainbow | Evolution 1056 |
| May 6, 1972 | 106 | Open Up Your Heart | Rainbow | Evolution 1056 |
| May 13, 1972 | 114 | Open Up Your Heart | Rainbow | Evolution 1056 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.