"The Decisive Battle of Friendship!!" (友情！決定戦へのバトル!!, Yūjou! Ketteisen he no Batoru!!) is the forty-eighth episode of the Beyblade Burst Evolution season. It first aired on March 5, 2018.
- Cuza and Valt each defeat Kurt.
- Boa decides to leave the Snake Pit Organization.
- Boa reveals to Valt that Theodore Glass and Ashtem are the same person and warns him about his intentions.
- Kurt's attitude begins to change after his battle against Valt.
- Valt qualifies for the semi-finals along with Free, Shu and Lui.
- Valt Aoi
- Kristina Kuroda
- Carl (Cuza's Bird)
- Cuza Ackermann
- Kurt Baratier
- Rantaro Kiyama
- Shasa Guten
- Honey Guten
- Kit Lopez
- Silas Karlisle
- Rickson Clay
- Gray Eye (Flashback)
- Boa Alcazaba
- Free De La Hoya
- Theodore Glass (Ashtem)
- Shu Kurenai (Red Eye)
- Lui Shirosagi
- Cognite C3 6Meteor Trans (Cuza's)
- Khalzar K3 7Under Hunter (Kurt's)
- Strike Valtryek V3 6Vortex Ultimate Reboott (Valt's)
- Cuza Ackermann (Cognite C3 6Meteor Trans) vs. Kurt Baratier (Khalzar K3 7Under Hunter) = Cuza & Cognite (2-1)
- Round 1: Kurt & Khalazar (Ring-Out Finish; 1pt)
- Round 2: Cuza & Cognite (Burst Finish; 2pts)
- Valt Aoi (Strike Valtryek V3 6Vortex Ultimate Reboot) vs. Kurt Baratier (Khalzar K3 7Under Hunter) = Valt & Valtryek (2-0)
- Round 1: Draw
- Round 2: Draw
- Round 3: Valt & Valtryek (Burst Finish; 2pts)
Special Moves Used
- Skyscraper Boost
- Eternity Launch
- Trigger Attack
- Moonsault Dive
- Thunder Attack
- Spring Attack
- Ultimate Genesis Reboot
- Ultimate Spring Winged Launch