The Nationals signed fourth round choice Kylin Turnbull, a left-handed pitcher out of Santa Barbara City College, to a $325,000 signing bonus, a club source confirmed. The signing was first reported by Baseball America’s Jim Callis.

The Nationals drafted Turnbull, 21, with the 127th overall choice back in June. Turnbull had a commitment to the University of Oregon, and the Nationals lured him away from school by giving a signing bonus $100,000 more than the slot recommend by MLB.

Turnbull, who at 6-foot-5 has an ideal pitcher’s frame, compiled a 2.47 ERA over 80 innings for SBCC this season, striking out 92 and walking only 17. The Chicago White Sox drafted Turnbull in the 30th round in 2010, but Turnbull went back to school, a choice that paid off tonight.

The Nationals still have to sign their first four picks before midnight, and it sounds like any other signings will happen right at the deadline. While we wait, here are educated guesses – repeat: guesses – for how much the Nationals’ will sign them for. Just for kicks:

Rice infielder Anthony Rendon, No. 6 overall: $7 million, four-year major league deal

Kentucky pitcher Alex Meyer, No. 23 overall: $2.5 million, minor league deal

Miami Dade outfielder Brian Goodwin, No. 34 overall: $1.5 million, minor league deal

TCU pitcher Matt Purke, No. 96 overall: $5 million, four-year major league deal