Koga is a high-usage operator at full back, averaging over ten carries and more than 75 metres per match across five Championship appearances — numbers that point to a player heavily involved in his side's attacking structure rather than a peripheral presence. His best outing, 18 carries for 106 metres, demonstrates he can sustain that workload at its peak when given the opportunity. His defensive contribution is modest by the numbers, reinforcing that his primary value lies in the carrying and territory-gaining side of the game.
Ryuto Koga is a professional rugby union full back registered with the Japan U20, the South Africa-based franchise. He forms part of the matchday squad and is tasked with bringing physicality and skill to the matchday squad.
As a full back, Ryuto features for the Japan U20 across the United Rugby Championship, the Currie Cup and European club competition, with home fixtures played at South Africa in South Africa.
Follow Ryuto Koga's match appearances, fixtures, results and the latest Japan U20 news on Octafield — South Africa's home of rugby.