1989 Nissan Los Angeles Open

Archive note

The 1989 edition was played at The Riviera Country Club, and won by Mark Calcavecchia with 272.

Record sources

• The Genesis Invitational: Tournament History
  • 1989 Nissan Los Angeles Open · Championship identity

    1989 completed tournament confirmed in the official winners and host inventory. Historical tournament name corroborated by https://en.riviera.co.jp/rcc/tournament/.

    Verified 2026-10-22
  • The Riviera Country Club

    Official host-course year inventory explicitly places the 1989 tournament at The Riviera Country Club. Canonical single Riviera course corroborated by PGA TOUR course history: https://www.pgatour.com/article/news/latest/2026/02/16/a-look-back-at-100-years-of-the-riviera-country-club-and-the-genesis-invitational

    Verified 2026-10-22
  • Mark Calcavecchia

    Official 1989 winner and stroke total, independently matched to PGA TOUR 2026 Media Guide page 40: https://pgatourmedia.pgatourhq.com/static-assets/page/files/mediaguides/2026%20Media%20Guide_03.16.pdf. Playoff status follows the WINNERS column, with the 2005 rain-shortened playoff confirmed by official tournament history. Score relative to par is withheld because the historical PGA overview contains inconsistent values.

    Verified 2026-10-22