Song: "Don't You Write Her Off"
Artist: McGuinn, Clark & Hillman
Peak position on the Cashbox Singles chart: #33
Number of weeks on the Cashbox Singles chart: 12
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| March 17, 1979 | 88 | Don't You Write Her Off | McGuinn, Clark & Hillman | Capitol 4693 |
| March 24, 1979 | 80 | Don't You Write Her Off | McGuinn, Clark & Hillman | Capitol 4693 |
| March 31, 1979 | 69 | Don't You Write Her Off | McGuinn, Clark & Hillman | Capitol 4693 |
| April 7, 1979 | 59 | Don't You Write Her Off | McGuinn, Clark & Hillman | Capitol 4693 |
| April 14, 1979 | 53 | Don't You Write Her Off | McGuinn, Clark & Hillman | Capitol 4693 |
| April 21, 1979 | 45 | Don't You Write Her Off | McGuinn, Clark & Hillman | Capitol 4693 |
| April 28, 1979 | 40 | Don't You Write Her Off | McGuinn, Clark & Hillman | Capitol 4693 |
| May 5, 1979 | 34 | Don't You Write Her Off | McGuinn, Clark & Hillman | Capitol 4693 |
| May 12, 1979 | 33 | Don't You Write Her Off | McGuinn, Clark & Hillman | Capitol 4693 |
| May 19, 1979 | 44 | Don't You Write Her Off | McGuinn, Clark & Hillman | Capitol 4693 |
| May 26, 1979 | 55 | Don't You Write Her Off | McGuinn, Clark & Hillman | Capitol 4693 |
| June 2, 1979 | 99 | Don't You Write Her Off | McGuinn, Clark & Hillman | Capitol 4693 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.