Looks like we need to get Justin Martinez added to the table for now, after he threw 29 pitches in his MLB debut last night. They included the five fastest pitches ever thrown by a Diamondback, topping out at 101.8 mph. However. two walks and a hit batter more or less confirmed the situation with Justin. However, it’s worth noting he is still only aged 21, and was the youngest pitcher to debut as a Diamondback since Tyler Skaggs did so in 2012. a month or so after his 21st birthday. He and Trevor Bauer are the only debutants younger than Martinez for Arizona in the past twenty years.