Washington pitcher Max Scherzer topped the shortened seasons list at $17.8 million, his income partially protected by a huge signing bonus.
Salaries averaged $1,295,942 on expanded opening-day rosters after prorated pay was factored in, according to the AP study.
Scherzers $210 million, seven-year contract includes a $50 million signing bonus baseball signing bonuses are distinct from salaries and not subject to reduction.
Los Angeles Dodgers pitcher Clayton Kershaw was second on the opening day list at $16.3 million, boosted by a $23 million signing bonus.
It would have projected to $4,144,328 with an active limit of 28 and $4,386,353 at 26, which would have been up 0.2% from last years AP study average of $4,375,486.