Jeff Borowiak
Jeff Borowiak is a former professional tennis player from the United States, who won five singles and three doubles titles during his professional career, reaching a career-high ATP singles ranking of World No. 20 in August 1977.
Personal
Borowiak is also an accomplished musician, mastering the flute and the piano. He was also indirectly involved in the formation of the group Metallica when he invested in his friend and Danish fellow player Torben Ulrich's son band Lars Rocket, which later became Metallica.Tennis career
Borowiak played number one singles on one of the greatest collegiate tennis team of all time for the UCLA Bruins. Haroon Rahim played number two singles, Jimmy Connors played at number three. Borowiak and Connors were NCAA champions, and Rahim remains the youngest player to represent his country in the Davis Cup competition.Borowiak was ATP Comeback Player of the Year in 1981.
Borowiak was inducted into the Intercollegiate Tennis Association Hall of Fame.
Career finals
Singles: 11 (5 titles – 6 runners-up)
| Result | No. | Date | Tournament | Surface | Opponent | Score |
| Loss | 1. | Oct 1971 | Cologne WCT, Germany | Carpet |  Robert Lutz | 3–6, 7–6, 3–6, 1–6 |
| Loss | 2. | Jul 1972 | Bretton Woods, USA | Hard | Cliff Richey | 1–6, 0–6 |
| Loss | 3. | Apr 1974 | New Orleans WCT, USA | Hard |  John Newcombe | 4–6, 2–6 |
| Win | 1. | Apr 1973 | Charlotte WCT, USA | Clay | Dick Stockton | 6–4, 5–7, 7–6 |
| Win | 2. | Nov 1974 | Oslo, Norway | Indoor |  Karl Meiler | 6–3, 6–2 |
| Loss | 4. | Jan 1976 | Atlanta WCT, USA | Carpet |  Ilie Năstase | 2–6, 4–6 |
| Win | 3. | Feb 1977 | Dayton, USA | Carpet |  Buster Mottram | 6–3, 6–3 |
| Win | 4. | Jul 1977 | Gstaad, Switzerland | Clay |  Jean-François Caujolle | 2–6, 6–1, 6–3 |
| Win | 5. | Aug 1977 | Toronto, Canada | Clay |  Jaime Fillol | 6–0, 6–1 |
| Loss | 5. | Mar 1981 | Tampa, USA | Hard | Mel Purcell | 6–4, 4–6, 3–6 |
| Loss | 6. | Nov 1981 | Johannesburg, South Africa | Hard | Vitas Gerulaitis | 4–6, 6–7, 1–6 |
Doubles: 9 (3 titles – 6 runners-up)
| Result | No. | Date | Tournament | Surface | Partner | Opponents | Score |
| Win | 1. | Oct 1973 | Osaka, Japan. | Tom Gorman |  Jun Kamiwazumi Ken Rosewall | 6–4, 7–6 | |
| Win | 2. | Feb 1974 | Hempstead WCT, USA | Hard | Dick Crealy | Ross Case Geoff Masters | 6–7, 6–4, 6–4 |
| Win | 3. | Aug 1974 | Bretton Woods, USA | Clay | Rod Laver | Georges Goven Francois Jauffret | 6–3, 6–2 |
| Loss | 1. | Nov 1973 | Oslo, Norway | Indoor | Vitas Gerulaitis | Karl Meiler  Haroon Rahim | 3–6, 2–6 |
| Loss | 2. | Oct 1975 | Maui, USA | Hard | Haroon Rahim | Fred McNair Sherwood Stewart | 6–3, 6–7, 3–6 |
| Loss | 3. | Mar 1976 | Caracas, Venezuela | Clay | Ilie Năstase | Brian Gottfried  Raúl Ramírez | 5–7, 4–6 |
| Loss | 4. | Feb 1977 | Dayton, USA | Carpet | Andrew Pattison | Hank Pfister Butch Walts | 4–6, 6–7 |
| Loss | 5. | Oct 1977 | Paris, France | Hard | Roger Taylor | Brian Gottfried Raúl Ramírez | 2–6, 0–6 |
| Loss | 6. | Aug 1978 | Indianapolis, USA | Clay |  Chris Lewis | Gene Mayer Hank Pfister | 3–6, 1–6 |