The numbers are outstanding. He has lost just 8% of games as Barça manager, meaning that his team suffer one defeat in every 13-14 matches they play.
Not even Pep Guardiola in his brilliant stint at the Camp Nou had a better record. The current City manager's defeat percentage sat at a very similar 8,5%, although it is worth remembering that he did manage more than double the number of games than Valverde - he lost just 21 of his 247 matches at the helm.
Third on the list is Luis Enrique. The current Spain manager lost the same number of matches as Pep Guardiola, having managed considerably less games with 181. His losing percentage is slightly higher than the top two at 11%.
The top three posses a losing percentage that is considerably lower than the next best managers on the list. The iconic figure of Johan Cruyff lost 83 of his 430 games in charge (18%), whilst Frank Rijkaard registered 50 defeats in 273 games (18%).
Finally, Louis van Gaal lost just over a quarter of his 200 games in charge (26%, 52 games lost), meaning Valverde represents quite an upgrade on past Barça managers statistically speaking.