Referee Mark Nelson determined after the fourth round Saturday night that Willie Harvey had taken enough flush punches from Jeremiah Milton.

The veteran referee therefore stopped their scheduled eight-round heavyweight bout before the fifth round began on the George Kambosos Jr.-Maxi Hughes undercard at FireLake Arena in Shawnee, Oklahoma. Tulsa’s Milton (10-0, 7 KOs) was declared a technical-knockout winner against a 38-year-old opponent who weighed in at almost 300 pounds Friday.

Harvey (4-3-2, 3 KOs), of Plainfield, New Jersey, lost by TKO for the second time in nearly eight years as a pro.

Less than a minute prior to Nelson’s stoppage, another right hand by Milton knocked Harvey backward with just over 30 seconds on the clock in the fourth round. Milton previously tattooed Harvey with a right hand when there was just under a minute remaining in the fourth round.

A left hook by Milton knocked Harvey into a corner with just under 40 seconds on the clock in the third round.

Milton blasted Harvey with a right hand that wobbled him with about 15 seconds to go in the second round. A subsequent left hook made Harvey move across the ring to survive that trouble.

Earlier Saturday night, middleweight prospect Troy Isley remained in control of his eight-round fight against Antonio Todd other than a brief moment early in the seventh round.

Isley thus won seven of eight rounds on the scorecards of judges Mike Bower, Joseph Mason and Gary Ritter, each of whom scored him a 79-73 winner

The 24-year-old Isley (10-0, 4 KOs), of Alexandria, Virginia, has gone the distance in four straight fights. Atlanta’s Todd (14-9, 8 KOs) has lost four of his past five fights, but he was durable and kept Isley honest with occasional right hands.

It was clear by the time their fight reached the eighth round that they would go the distance. Isley nailed Todd with back-to-back right hands when there were about 30 seconds remaining in what was an otherwise nondescript final round.

Todd buzzed Isley with a right hand that landed less than 15 seconds into the seventh round. Isley tied up Todd to try to keep him from punching and seemed to regain his composure pretty quickly.

Todd caught Isley with a right hand in an exchange just before the sixth round ended. Todd’s right hand landed with 55 seconds on the clock in what was a competitive sixth round.

Isley consistently landed to Todd’s head and body during the fifth round. A left-right combination by Isley landed after Todd lost his footing with just under 10 seconds remaining in the fifth round.

Isley’s right hand made Todd stumble with just under 1:50 to go in the fourth round.

Todd landed a flush right hand, but Isley quickly responded by catching Todd with a right hand of his own with just under 1:20 remaining in the second round. Isley later landed a right hand that moved Todd backward with a few seconds to go in the second round.

Isley rocked Todd with a right hand with 1:15 to go in the first round. He tried to finish Todd, but Todd withstood his onslaught and made it to the second round.

In the previous fight Saturday night, Hemi Ahio’s activity and aggression eventually wore down 300-pound Amron Sands in the sixth round of their heavyweight fight.

Ahio hurt Sands with a right hand when Sands was backed into a corner, which led to a sixth-round, technical-knockout win. The referee separated them and stopped the action at 2:12 of the sixth round.

Ahio improved his record to 21-1 and produced his 16th knockout. Sands (12-3, 9 KOs), of Orlando, Florida, lost for the third time in his past four fights, all by TKO.

Ahio’s activity continued to wear down Sands during the sixth round, which led to him staggering Sands with a right hand when there were 55 seconds to go in the sixth round. An opportunistic Ahio pounced on Sands, landed several additional flush punches and caused the referee to step between them.

A right hand by Ahio knocked Sands off balance 30 seconds into the sixth round.

Ahio’s array of punches kept Sands backed against the ropes during the final 30 seconds of the fifth round.

Ahio’s right hand snapped back Sands’ head and moved him into the ropes, but Sands fired right back with a left hand that backed up Ahio a few seconds before the fourth round concluded.

Sands’ left landed with just under 30 seconds to go in the fourth round. Sands’ right hook to Ahio’s body landed a few seconds before the halfway mark of the fourth round.

Ahio landed back-to-back right uppercuts with just under 50 seconds to go in the third round.

Ahio blasted Sands with a right hand that knocked him into a corner with 40 seconds on the clock in the second round. Ahio attempted to finish his vulnerable opponent, but Sands survived and threw hard punches back at Ahio just before the second round ended.

Ahio’s right landed to the side of Sands’ head just before the halfway point of the second round.

Ahio landed several short right hands that got Sands’ attention in the first round. Sands snuck in a left uppercut a few seconds before the opening round ended.

Keith Idec is a senior writer/columnist for BoxingScene.com. He can be reached on Twitter @Idecboxing.