The Red Sox announced that Betts avoided arbitration with a one-year, $20 million contract, the most any player received before Friday's 1 p.m. ET deadline when teams and arbitration-eligible players must agree to a deal for the upcoming year or otherwise prepare for an arbitration hearing.
Betts made $10.5 million last season. His nearly $10 million jump is the highest arbitration raise ever received by a position player. The biggest contract earned by an arbitration-eligible player is the $23 million that current Atlanta Braves third baseman Josh Donaldson received last year.
The Red Sox reached agreements with all 10 of their eligible players.
The 26-year-old Betts led the MLB in runs (129), batting average (.346) and slugging percentage (.640) last season. He also won the AL Silver Slugger Award and AL Gold Glove Award.
The reigning NL Cy Young Award winner earned a $9.6 million raise, which topped Betts' $9.5 million jump.
The 30-year-old deGrom posted an MLB-low 1.70 ERA over 32 starts last season. If the Mets and deGrom can't reach an agreement on a multi-year contract extension, he becomes a free agent for the first time in 2021.