Gennady “GGG” Golovkin defeated Willie Monroe Jr. with a sixth-round technical knockout on Saturday night at The Forum in Inglewood, California, retaining the WBA, IBO and WBC Middleweight titles. The victory improves Golovkin’s career record to 33-0, giving him 20 consecutive wins by KO or TKO.

A series of punches in the sixth round were too much for Monroe to withstand. After getting knocked down for the third time in the fight, Monroe stood up just before referee Jack Reiss finished his 10-count. When Reiss asked Monroe if he wanted to continue, the boxer responded, “I’m done.”

The fight nearly ended in the second round when Golovkin scored two knockdowns. A left hook less than halfway through the round sent Monroe to the canvas, and another left hook knocked down Monroe 45 seconds later.

Monroe’s best effort came in the fourth round when he landed several clean shots to the head of Golovkin. It was the only round in which Monroe landed more punches (33) compared to GGG’s 30 shots.

Throwing 297 total punches, Golovkin landed 133 total shots. Monroe landed 87 of his 305 attempts. Golovkin landed nearly 50 percent of his power punches, hitting his opponent 116 times with power punches.

After being so dominant in his previous fights, Golovkin appeared to show some signs of weakness when Monroe went toe-to-toe with him in the fourth and fifth round. In the post-fight interview with HBO's Max Kellerman, GGG said he let Monroe get some shots in so he could put on an entertaining fight for the crowd.

Golovkin continues to dominate each opponent he faces, waiting for his chance to take on a well-known fighter. He told Kellerman he’s ready for a big fight, mentioning both Canelo Alvarez and Miguel Cotto.

Having knocked out 30 of his 33 opponents, Golovkin has the highest knockout percentage in the history of the middleweight division.