Joao Fonseca defeated Arthur Rinderknech 6–3, 6–2 in the second round of the ATP 250 Munich event on clay on 15 April 2026, a result that confirmed the pre-match odds favouring the Brazilian. Fonseca's dominant performance saw him progress through the round with a convincing display, dropping only five games across two sets against the French opponent. The victory underscores Fonseca's continued momentum on the clay-court circuit and positions him favourably in the tournament's latter stages.