Jiri Prochazka has introduced a breath-hold sprint regimen to his training camp as he prepares to face Khalil Rountree Jr. at UFC 320 on October 4, 2025, at the T-Mobile Arena in Las Vegas.
The Czech contender and former light heavyweight champion teamed with a coach from the Czech Republic two and a half years ago to develop what he calls the “oxygen advantage method,” a form of CO2 tolerance training that aims to bolster endurance and power while reducing recovery time between efforts.
Czechia’s Jiri Prochazka Reveals Oxygen Advantage Training
Prochazka’s schedule at UFC 320 places him in a featured light heavyweight bout that precedes the rematch for the title between Magomed Ankalaev and Alex Pereira.