Challengers are being sought to take on four people undertaking a 24-hour triathlon with a difference.
The event at Spalding Constitutional Club in Broad Street is happening on the weekend of Saturday and Sunday, June 11 and 12.
The fundraiser for British Heart Foundation and Lincolnshire and Nottinghamshire Air Ambulance will begin with eight hours of darts, followed by eight hours of snooker and finish with eight hours of bowls.
A spokesman said: “We are looking for people to come along and challenge us to a game of darts, snooker and bowls.
“All sponsorship will be greatly received.
Darts: 4pm-midnight on Saturday (£2.50 per match, best of five legs)
Snooker: 0.01am– 8am on Sunday (£2.50 per match, best of three legs)
Bowls: 8am-4pm on Sunday (£2.50 per match, eight ends).
Phone 01775 723083 for further details.