Alec has garnered many levels of success in freestyle following his first appearance to the international circuit in 2015. Since then, Alec has finished top-eight at every United States Freestyle national-championships and represented the United States overseas in numerous notable sporting events.
2015 Alec finished with runner up honors at the Junior National Championships in
Las Vegas, Nevada. Pantaleo fell to Wyoming's Archie Colgan in the championship bout.
2016 Alec won the Junior National Championships at 66 kg, beating Princeton's Matthew Kolodzik in the first place-bout. In the weeks following he made the
United States Junior World team at 66 kg by beating Kolodzik two more times in a best-of-three final bout. Pantaleo went on to represent the United States at the Junior World Championships in
Macon, France later that summer. While overseas he posted a 1–1 record, defeating Georgi Sulava from
Georgia in the opening round, but eventually falling to Viaks Vikas from
India in the following preliminary match. Pantaleo finished with a 10th-place finish at the 2016 Junior World Championships.
2017 Pantaleo placed 5th at the USA Senior National Men's Freestyle Championships at 70 kg in
Las Vegas, Nevada 2018 Pantaleo placed 3rd at 70 kg at the 2018 Senior National Men's Freestyle National Championships in
Las Vegas, Nevada. He also placed 3rd at the 2018 Senior World Team Trials at 70 kg in
Rochester, Minnesota 2019 Alec won the 70 kg
U23 National Championships in
Akron, Ohio, and was bestowed the Outstanding Wrestler Award by USA wrestling following a remarkably dominant performance. Pantaleo posted a perfect 7–0 record and outscored his opponents by a margin of 69–2. Additionally, he secured his spot as a 2019 U23 World Team Member. Later that year, Pantaleo finished 8th in the world at the U23 World championships in
Budapest, Hungary. In the opening round Pantaleo defeated Stefan Tonu of
Moldova by a score of 8–0. He then fell to Daud Ibragimov of
Azerbaijan by a score of 9–8. Pantaleo finished with a record of 1-1. Domestically, Pantaleo also placed 4th at the 70 kg 2019 Senior National Men's Freestyle championships in
Las Vegas, Nevada at and 8th at 74 kg in
Fort Worth, Texas 2020 Pantaleo won gold at the Cerro Pelado International in
Havana, Cuba with a perfect 5–0 record while representing the United States at 70 kg. In the finals Pantaleo beat former United States national champion/ world team member
Reece Humphrey by a score of 7–2.
2021 Pantaleo earned a 3rd-place finish at the inaugural Flowrestling 150 lb 8-man bracket challenge in
Austin, Texas. Pantaleo went 2–1 en route to a bronze medal, beating former
NCAA national champions
Jordan Oliver and
Anthony Ashnault. Pantaleo fell to
James Green by a score of 4–2 in the semi-finals. Pantaleo claimed the 70 kg title at the Matteo Pellicone International in
Rome, Italy in April 2021. Pantaleo beat 2019 world-finalist
Daulet Niyazbekov of
Kazakhstan in the opening round and gold medal match with respective scores of 6-2 and 4–0. Domestically, Alec took 2nd at the 2021 U.S. Senior National Championships while competing at 70 kg. Pantaleo fell to
James Green in the gold medal bout by a score of 2–7. In June 2021, Alec Pantaleo won gold at the
2021 Pan American Wrestling Championships in
Guatemala City, Guatemala. Pantaleo won all three of his matches by technical superiority, beating
Carlos Romero Millaqueo from
Chile with a score of 12–0 in the gold medal bout. Pantaleo also claimed the
2021 Poland Open championship in
Warsaw, Poland. Pantaleo defeated
James Green in the final bout by a score of 5–3. In his semi-final bout, Pantaleo defeated three-time world champion and Olympic Bronze Medalist
Haji Aliyev of
Azerbaijan with a score of 6-6. Pantaleo closed out his 2021 campaign with a medical withdrawal from the
2021 United States World Team Trials (wrestling). In his semi finals bout it is recorded that he sustained a rib related injury, causing for a medical forfeit. At that time of injury, Pantaleo was the top ranked wrestler in the world at 70 kg, according to
United World Wrestling. == Freestyle record ==