Cleveland Cavaliers records

1971–2026

Best starts

Wins to open a season

  1. 15 to start 2025
  2. 8 to start 1977
  3. 6 to start 2017
  4. 4 to start 1979
  5. 4 to start 1989

Best seasons

Highest regular-season win percentage

  1. 2009 66–16
  2. 2025 64–18
  3. 2010 61–21
  4. 1989 57–25
  5. 1992 57–25

Worst seasons

Lowest regular-season win percentage

  1. 1971 15–67
  2. 1982 15–67
  3. 2003 17–65
  4. 2011 19–63
  5. 2019 19–63

Worst starts

Losses to open a season

  1. 15 to start 1971
  2. 9 to start 1985
  3. 7 to start 1973
  4. 7 to start 1996
  5. 6 to start 2019

Win streaks

Consecutive wins

  1. 16 2025
  2. 15 2025
  3. 13 2009
  4. 13 2010
  5. 13 2018

Losing streaks

Consecutive losses

  1. 26 2011
  2. 19 1982
  3. 15 1971
  4. 15 2003
  5. 12 1971

Biggest wins

Largest margins of victory

  1. 148–80 Miami Heat 1992
  2. 138–83 Miami Heat 2025
  3. 144–99 Toronto Raptors 2022
  4. 130–86 Boston Celtics 2017
  5. 144–101 Dallas Mavericks 2025

Worst losses

Largest margins of defeat

  1. 57–112 Los Angeles Lakers 2011
  2. 87–141 Philadelphia 76ers 1971
  3. 79–129 Portland Trail Blazers 1983
  4. 88–136 Indiana Pacers 2000
  5. 94–141 Philadelphia 76ers 2020

Postseason

Seasons that reached the playoffs

  1. 2026 8–10
  2. 2025 5–4
  3. 2024 5–7
  4. 2023 1–4
  5. 2018 12–10 title game
  6. 2017 13–5 title game
  7. 2016 16–5 title game
  8. 2015 14–6 title game

NBA Finals appearances

Seasons that reached the NBA Finals

  1. 2018 lost NBA Finals
  2. 2017 lost NBA Finals
  3. 2016 won NBA Finals
  4. 2015 lost NBA Finals
  5. 2007 lost NBA Finals
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