Felix Delgado, a scout with the Cincinnati Reds, signed Contreras. In his professional debut for Cagua in the Venezuelan Summer League of 2004, he batted .271/?/.316. He struggled for the VSL Reds the following season, hitting just .238/.331/.320.
But in 2006, he improved to .287/.398/.451 while playing error-free outfield baseball. With five home runs, he was tied for tenth in the Venezuelan League and ranked seventh in OPS.
He played for the DSL Reds (.378/.440/.467 in 12 G) and VSL Devil Rays/Reds (.315/.414/.510, 11 HR, 54 R, 25 SB, 5 CS in 65 G) in 2007.
In the VSL, he was among the top players in the categories of average (10th), on-base percentage (7th), slugging (1st by.006 over Jose Rivero), on-base percentage (OPS) (1st by 10 over Rivero), runs (2nd with Cesar Fuentes), hits (76, 4th with Fuentes), doubles (14, 5th), home runs (2nd with Rivero), and steals (tied for 4th).
He moved to the United States in 2008, playing in 37 games for the GCL Reds and going 5 for 30 with a double, home run, and walk for the Sarasota Reds while hitting .271/.351/.395 with 30 RBI.
He had the highest OPS by a starter on the last-place team in 2009 for the Billings Mustangs, producing at a rate of .301/.395/.412.
In his lone appearance there through the winter of 2014–2015, he went 0 for 7 with a run for the Caribes de Anzoategui in the Venezuelan Winter League in 2009–2010.
Efrain’s career with the Reds came to an end in the summer of 2010 after only hitting .203/.253/.215 in 24 games for the Dayton Dragons and .199/.270/.316 in 62 games for the Lynchburg Hillcats.
Contreras played with the Tigres de Cartagena in the Colombian League from 2014–2015, going 8 for 19.
How Much Does Efraín Contreras Make?
Efraín Contreras has not been added to the San Diego Padres salary payroll for the 2022 season. He was paid an average salary of $50,000 in 2018.