Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Outcome | No. | Date | Tournament | Surface | Partner | Opponents in the final | Score in the final |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Runner-up | 1. | 1969 | Los Angeles, U.S. | Hard | Jim McManus | Pancho Gonzales\n Ron Holmberg | 3–6, 4–6 |
| Runner-up | 2. | 1970 | Merion, U.S. | Hard | Jim McManus | William Bowrey\n Ray Ruffels | 6–3, 2–6, 5–7 |
| Winner | 1. | 1971 | Columbus, U.S. | Hard | Jim McManus | Jimmy Connors\n Roscoe Tanner | 4–6, 7–5, 6–2 |
| Winner | 2. | 1971 | Merion, U.S. | Hard | Clark Graebner | Robert McKinley\n Dick Stockton | 7–6, 6–3 |
| Winner | 3. | 1971 | Sacramento, U.S. | Hard | Jim McManus | Bob Maud\n Frew McMillan | 7–6, 6–3 |
| Winner | 4. | 1972 | Los Angeles, U.S. | Outdoor | Jim McManus | Ilie Năstase\n Ion Ţiriac | 6–2, 5–7, 6–4 |
| Winner | 5. | 1972 | London/Queen's Club, England | Grass | Jim McManus | Jürgen Fassbender\n Karl Meiler | 4–6, 6–3, 7–5 |
| Runner-up | 3. | 1972 | Tanglewood, U.S. | Other | Jim McManus | Bob Hewitt\n Andrew Pattison | 4–6, 4–6 |
Question:
who did jim osborne partner with the most during the open era titles?
Answer:
Jim McManus