The incentive structure of Tim Wakefield’s new two-year deal with the Red Sox is fairly intricate. While he will receive a guaranteed $5 million, the specific clauses could increase the value of the deal to approximately $5 million per season. Here are the details of the 2010-11 deal:

Base salary is $3.5m in 2010 and $1.5m in 2011.

Bonuses in 2010: Wakefield receives $50,000 each for starts 11-15; $75,000 each for starts 16-25; and $100,000 each for starts 26-30. (Max potential earnings: $5 million.)

Escalator clause for base salary in 2011: Wakefield’s 2011 base salary can increase, based on the number of innings he throws in 2010. If he throws 130 innings this coming season, his 2011 base salary increases to $2 million; he throws 160 innings in 2010, he would earn a $3.5 million base.

Bonuses in 2011: Wakefield’s potential bonuses for 2011 will depend on the base salary:

If the base salary is $1.5 million (after fewer than 130 innings in 2010):  $100,000 each for starts 11-15; $200,000 each for starts 16-25, and $250,000 each for starts 26-30. (Max potential earnings: $5.25 million.)

If the base salary is $2 million (if he throws at least 130 innings but fewer than 160):  $75,000 each for starts 11-15; $150,000 each for starts 16-20; $200,000 each for starts 21-30. (Max potential earnings: $5.125 million.)

If the base salary is $3.5 million (provided Wakefield throws at least 160 innings in 2010), the bonuses are the same as in 2010: $50,000 each for starts 11-15; $75,000 each for starts 16-25; and $100,000 each for starts 26-30. (Max potential earnings: $5 million.)