In addition, the Cubs signed right-handed pitcher Josh Conway (fourth round) of Coastal Carolina University; infielder Stephen Bruno (seventh round) of the University of Virginia; left-handed pitcher Michael Heesch (eighth round) out of the University of South Carolina Beaufort; and catcher Chadd Krist (ninth round) out of the University of California, Berkeley.
Blackburn, 18, went 8-3 with a 1.27 ERA for Heritage High School, striking out 84 over 77 1/3 innings. In May, he recorded his first career no-hitter, striking out eight and walking two in a 6-0 win over state-ranked Deer Valley of Antioch.
Others to sign include outfielder Rashard Crawford (11th round); right-handed pitcher Corbin Hoffner (14th round); catcher Carlos Escobar (15th round); left-handed pitcher Nathan Dorris (17th round); and right-handed pitcher Stephen Perakslis (21st round).
The list of signees also includes 28th-round pick Lance Rymel; 30th-round pick Izaac Garsez; 32nd-round selection Timothy Saunders; 35th-round pick Ben Carhart; and 40th-round pick Jacob Rogers.