March 25, April 1 and April 8 -ALL paying $5,000 to win for non wing sprints along with winged sprints and late models.

I copied the following from their website:

CONSOLATION EVENT PAYOUT ALL DIVISIONS

Any competitor failing to qualify for their main event will receive $100 in tow money

NON WING SPRINT CAR – MAIN EVENT PURSE ($19,500 posted) – 1st) $5,000; 2nd) $2,500; 3rd) $1,500; 4th) $1,000; 5th) $900; 6th) $800; 7th) $700; 8th) $600; 9th) $500; 10th-24th) $400 To Start

EVENT FORMAT

Qualifying
Pill draw for qualifying position and Group #
Group qualifying
Heat Races
8 Lap Heats are seeded by group and by qualifying position – Top 4 finishers to Main
Top 2 finishers redraw for starting position in main event
B Mains
Two 12 Lap B Mains – Top 4 Transfer to Main event
A Main – 24 Cars
30 Laps

EVENT RULES

*The Triple Crown Spring Series is a NON-SANCTIONED event*

Non Wing Sprint Cars – Rules will be based on the BOSS SERIES rule book. However, special event rules may apply. All rules are subject to change and at the discretion of Mansfield Motor Speedway officials.

Tires Rules – Refer to BOSS Rules
Special Event Rules

Mufflers are NOT Mandatory

Triple Crown BONUS!
The Triple Crown Spring Series is a compilation of 3 weekends of racing. Each event will feature a $5,000 to Win $400 to Start Main event. There will be a $10,000 “TRIPLE CROWN” Bonus award for any competitor able to sweep the series and Win all 3 Triple Crown events. There must be a minimum of 30 cars in competition at each event for the bonus to be awarded.

5K to win in 3 divisions on one night, is a really big deal. 5K to win in 3 divisions for 3 consecutive weekends is unheard off. I'm not aware of the promotors name at Mansfield. Please excuse me for that. But Thank you for first bringing Mansfield back to a dirt track, and secondly. Thank you for stepping up and paying the purse your paying! Sure hope everything goes well those 3 weekends for you and it's a huge success!

I believe it's the same guy who did the St. Louis thing last December & the Indy indoor midget think the year before.
And I agree, what they attempting and at that time of year is incredible.