Born in Sweden, Carin started playing golf at the age of nine. She credits her father and husband for the most influence to her career. Koch was a member of the 1985-91 Swedish National Amateur teams. She won the 1988 Swedish Girls Championship title and the 1990 European Team Junior Championship. While a member of the University of Tulsa golf team, she was named a two-time second-team All-American in 1989-90.
In 2001, Carin claimed her first victory at the LPGA Corning Classic where she posted four consecutive rounds in the 60s to finish with a 270 (-18) total. She had 3 other top-ten finishes: tying for 2nd at the YourLife Vitamins LPGA Classic, tying for at the AFLAC Champions presented by Southern Living, and tying for ninth at the Jamie Farr Kroger Classic Presented by ALLTEL.
In 2000, Carin Recorded the fifth runner-up finish of her career when she tied for second at the Los Angeles Women's Championship. She f inished third at the Longs Drugs Challenge, tied for fourth at the Standard Register PING and tied for ninth at the ShopRite LPGA Classic, where she fired a season-low 65 during the final round. She crossed the $1 million mark in career earnings after tying for 14th at the Evian Masters. A member of the victorious European Solheim Cup Team, she went 3-0 in her rookie year on the team,sank an eight-foot birdie putt on the 17th hole to win her match against Michele Redman and clinch the European Team's victory. A member of the victorious European Solheim Cup Team, she went 3-0 in her rookie year on the team and sank an eight-foot birdie putt on the seventh hole to win her match against Michele Redman and clinch the European Team's victory. Her $329,377 in earnings marked the most successful financial season of her career. Her first professional victory came when she won the Chrysler Open on the Evian Ladies European Tour.
Her 1999 highlights include recording her first LPGA career hole-in-one during the second round of the du Maurier Classic; Tied for second at the Jamie Farr Kroger Classic, where she lost in a six-way sudden-death playoff to Se Ri Pak; Tied for fifth at the U.S. Women's Open, her best finish in a major championship, and tied for sixth at the Mizuno Classic.
In 1998, she finished in second place at the Longs Drugs Challenge to record her career-best finish. In 1997, her best finish was a tie for fifth at the Welch's Championship. In 1996, she recorded a career-low round of 63 during the second round of the First Bank Presents the Edina Realty Classic, where she tied for second after losing to Liselotte Neumann in a sudden-death playoff. In 1995, her rookie season, Koch had two top-10 finishes: tied for second at the JAL Big Apple Classic and tied for seventh at the Pinewild Women's Championship.
Other best finishes as a professional include: second place at both the 1994 Irish Open and the 1994 Taiwan Open, third place at both the 1993 Swedish Open and the Women's British Open. In 1992, was the Swedish Matchplay champion. Was ranked 15th on the 1992 and 1993 WPGET Order of Merit and fourth on the 1994 Asian Order of Merit.
Prior to joining the LPGA Tour, she played on the Women Professional Golfers' European Tour (WPGET) and the Asian Tour. She turned professional in 1992.
Started Playing Golf at the Age of 9
