GGG most notably lost to Saul "Canelo" Álvarez in their highly anticipated rematch on September 15, 2018, marking his first career defeat after an undefeated run.

Boxing Context

Gennady "GGG" Golovkin, the Kazakhstani middleweight legend known for his devastating knockout power, dominated for years with a 38-0 record (34 KOs) before facing Canelo. Their first fight in 2017 ended in a controversial draw despite GGG landing more punches. In the 2018 sequel at T-Mobile Arena, Canelo edged a majority decision (115-113, 115-113, 114-114) after 12 grueling rounds, surviving GGG's late rally.

GGG avenged an earlier stoppage (his brother fought differently) but this loss stripped his unified titles. He later lost to Canelo again in 2022 by unanimous decision, though he notched wins like against Ryota Murata in between.

Recent Mentions

No major 2026 losses for GGG turn up in latest checks—recent buzz ties "GGG" to a heavyweight prospect Zhan Kossobutskiy's DQ setback, but that's unrelated to Golovkin. Stock ticker Graco (GGG) reports no "losses" but strong earnings growth.

Fight| Opponent| Result| Year
---|---|---|---
GGG vs. Canelo I| Canelo Álvarez| Draw| 2017
GGG vs. Canelo II| Canelo Álvarez| Loss (Maj. Dec.)| 2018 10
GGG vs. Canelo III| Canelo Álvarez| Loss (Unan. Dec.)| 2022 9
GGG vs. Brook| Kell Brook| Win (RTD 5)| 2016 4

TL;DR at bottom: GGG's signature loss was to Canelo in 2018—iconic rivalry stuff.

Information gathered from public forums or data available on the internet and portrayed here.