Duncan provided a big spark off the bench for Spire which manifested in him slashing his way to the rim as a transition lane-filler and cutting in the 45’s and on along the baseline to score at the cup. Duncan is a big time energy and motor guy whose boldness when attacking the rim led to power finishes in the lane and trips to the free throw line when drawing contact. Duncan’s frame allowed him to stay on balance through contact and his body control led to him being able to maintain his line and finish through physicality.

Duncan was one of the first new transfers into the program announced early in the spring and he is a guy who you just know what you are going to get out of him. Duncan is strong, tough, impactful defensively, can knock down an open shot and finish drives. His ability to create turnovers is exceptional on the defensive end of the court and his scrappiness allows him to be an elite rebounder for his height. Duncan also impressed me with soft touch around the basket on drives and finished a high percentage of his shots around the rim on Thursday.

A tremendous playmaker in every facet of the game, consistently making the right basketball play with a tremendous feel that elevated everyone around him. He scored efficiently while creating high-quality scoring opportunities for his teammates on a consistent basis. Duncan understood tempo, controlled the flow of the offense, and always seemed to be one step ahead, knowing exactly when to score, facilitate, or slash through the lane.

Duncan was impactful in a variety of ways and leaned into his his biggest strength: Two-way versatility. The strong, physical and athletic 6-foot-5 wing showed he can defend multiple positions, rebound in and out of his area at a high rate and generate offense without having to dominate the ball. Duncan was very good in transition where he filled lanes or pushed the break on his own, earned paint touches, and finished through the contact he sought out. The Colorado-native averaged 21.6 points per game in Vegas.

New to Ohio’s 2028 class, Duncan made his debut at the top spot and showed why on Tuesday. The explosive wing athlete is a tough defender who can guard multiple positions on the ball and can contest and block 3-pointers. Duncan is explosive off his feet and is sudden with how quick he gets up to the rim in transition. Duncan also knocked down an early catch and shoot 3-pointer from the corner and his form looked smooth in one motion. That confidence made it surprising that Duncan finished just 4/10 from the foul line, as he should’ve finished with well over 20 points in the game. While the thrilling contest didn’t go his way, Duncan still showed why he’s the top ranked prospect in Ohio’s 2028 class and a name to know nationally.

I caught Duncan at Team USA October minicamp back in October and was impressed by his physicality, ability to play off two feet and power. Duncan played with the Utah Mountain Stars at the 15 U level and has played for Legynds on the EYBL circuit alongside fellow Colorado native Dylan Betts. Duncan debuts at first in our Ohio rankings as he’s in our top 25 of the national rankings at the moment and is around the same range in the Rivals national rankings as well. Duncan holds offers to programs like Kansas, TCU and UNLV already and will likely add to that list with the Spire program.

I mean, Marceles Duncan Marceles Duncan 6'5" | SF/PF Spire Institute | 2028 State #27 Nation OH as the No.1 player in the class is a no-brainer at this point, and anybody who says otherwise is delusional. He was named to the 1st Team All-State as a sophomore, he led his team to a Top-3 seed, and he was even invited back for the USA minicamp. Duncan filled it up, averaging 18 points, 7.3 rebounds, and 3.6 assists a game. He’s locked in defensively, showcased a reliable 3-point shot, which opened up the rest of his game, and plays the right way. He’s the No. 1 player in the class. 

Marceles Duncan Marceles Duncan 6'5" | SF/PF Spire Institute | 2028 State #27 Nation OH is a different caliber of hooper who’s constantly redefining his play style and proving to be one of Rangeview’s most important players. Duncan was able to accumulate a shell-shocking 24 points, 8 rebounds, 2 assists, a steal, and a block. At 6’5, good luck to any defender with the assigned task of guarding him. Duncan is shifty with the rock with lethal acceleration that he uses to create space for himself across all three levels of the floor on offense. Hustling for each loose ball and focused, there’s no question that Duncan will be a pivotal player to keep your eyes on in the Final Four.

Duncan stuffed the stat sheet in Round 1 with 17 points, 5 rebounds and 4 steals, showing just how impactful he can be on both ends of the floor. His size immediately creates matchup problems, whether he’s posting up smaller defenders or attacking slower ones off the dribble. He finishes through contact, extends possessions on the glass and turns defense into offense with his quick hands and anticipation. Those four steals sparked transition opportunities and shifted momentum. If he continues to assert himself early, control the paint and disrupt passing lanes, he’ll be the engine that elevates his team in the next round

Marceles Duncan Marceles Duncan 6'5" | SF/PF Spire Institute | 2028 State #27 Nation OH contributes to Rangeview’s success in a plethora of ways, from elusive scoring to physicality in the paint. Crashing the glass at will, Duncan enjoys giving his squad as many second-chance opportunities as possible. Establishing himself as a top-tier hooper in the box state, Duncan is averaging 18.6 PPG, 8.1 RPG, 3.8 APG, 2.3 SPG, and 2.3 BPG. Across the board, he’s elevated his game to new heights, taking over games whenever he wants to.