Del. Code tit. 28 § 427
During any calendar year in which a licensee under this chapter has also been licensed by the Director of the State Lottery Office to maintain video lottery machines within the confines of a racetrack licensed under this chapter, an amount calculated pursuant to § 4815(b)(3) of Title 29 shall be added to the purses for the races to be held at the licensee's racetrack. The allocation of said sums among the races to be held at the licensee's racetrack shall be in accordance with contracts currently in force, or with the horse racing association recognized for purposes related to the allocation of purses, if applicable; provided, that all of such sums shall have been allocated no later than the end of the calendar year immediately following the calendar year of receipt of said sums by the licensee.
28 Del. C. § 427