By CompuBox

In a fight of extreme extremes, Deontay Wilder overcame several instances of deep trouble to score three knockdowns (one in the seventh, two in the 10th) to retain his WBC heavyweight title for the seventh time.

His 39 knockouts are the most by a heavyweight titlist through 40 fights and he has tied Joe Louis for second place for consecutive knockouts in heavyweight title defenses with seven.

Wilder landed 39% of his power shots, well below the 56.6% he logged in his seven previous title fights, while taking 43%. Scoring through nine: 85-84 Wilder by all judges.

Undefeated heavyweight world champion Deontay “The Bronze Bomber” Wilder retained his WBC title in his seventh defense with a tenth round knockout over unbeaten challenger Luis “The Real King Kong” Ortiz in a thrilling back-and-forth SHOWTIME CHAMPIONSHIP BOXING main event Saturday night from Barclays Center, the home of BROOKLYN BOXING®.

Wilder (40-0, 39 KOs) not only survived the toughest test of his career but also finished the job in spectacular fashion by unleashing a ferocious 10th round assault on Ortiz (28-1, 24 KOs). Wilder floored the Cuban challenger twice in the round, forcing referee David Fields to stop the fight at 2:05 of the round.

Oritz looked like he would dethrone Wilder in the seventh round, countering with a strong right hand that hurt the WBC heavyweight champion. Ortiz unleashed a barrage of punches against a stunned Wilder, who somehow managed to stay on his feet to close the round before being saved by the bell. Ortiz continued his assault on Wilder into the eighth round, who again managed to make it through the round.

In the ninth round, Wilder began to rebound as he knocked Ortiz off-balance with a straight right hand. America’s only reigning heavyweight champion was firmly back in the fight as he landed a strong combination on Ortiz to close the round, completely changing the momentum of the fight.

Both fighters came out strong at the start of the tenth round, landing simultaneous blows that made each fighter temporarily wobbly. But it was Wilder who capitalized on the moment, as the Alabama-native pounced on Ortiz, sending his opponent to the canvas for the second time of the night with a flurry of overhand right hands. A dazed Ortiz returned to his feet, but was unable to withstand a follow-up assault from a confident Wilder, who landed an uppercut that sent Ortiz to the canvas for the third and final time.