| Tennis Matches | ||
 | ||
| Type VS Genius 10 | ||
| Participants Kite/Marui vs Kimijima/Tohno | ||
| Final Score 3-6, 2-6 | ||
The challenge against the Genius 10 is tied at one win and one loss. In the third match, Marui and Kite face the Executioner of the Court, Tohno, and Genius Tennis Boy, Kimijima.
0-0 ~ 3-3[]
Making the most of their strengths, Marui and Kite take a quick 3-0 lead. Kite returns all shots with his Shukuchihou and Marui strikes when a chance presents itself. This seemingly perfect formation breaks after Kimijima influenced Marui with his Negotiation, allowing the 1st string to catch up.
3-3 ~ 3-6[]
After seeing Marui crumble, Kite betrays him and joins forces with Kimijima and Tohno. The match turns into a 1 vs 3 and Marui is caught in a crossfire between Tohno's Executions and Kite's assassination techniques.
3-6, 0-0 ~ 3-6, 2-5[]
It turns out that Kite made a deal with Kimijima prior to the match. To take out Tohno, Kite pretended to have betrayed Marui, however, before he can deal the finishing blow, Marui evolves and completes his new move: Wonder Castle. His new defense seems to be impenetrable. Combined with Kite's Giant Habu, they create a new combination and push back. However, it breaks down after Marui sustains an eye injury. Determined to make up for his betrayal, Kite acts as Marui's shield and takes Tohno's Executions with his body.
3-6, 2-5 ~ 3-6, 2-6[]
Kite has reached his limits. Just as Tohno is about to deal the finishing blow, Kimijima interrupts and Marui uses the opening to attack Tohno's weak point. He, too, negotiated with Kimijima. Ultimately Kimijima emerges as the only complete victor of the battle.