All entrants in the 50 Free are automatically entered at, no charge, into the Resolution 50 Free Challenge. This “event” will attempt to determine a single winner from all age groups and both sexes. Each participant's times will be adjusted by a multiplier to determine their Resolution Challenge time. The multiplier is the FINA Men’s 50 M Long Course WR divided by FINA Age Group 50 M Long Course WR times participant’s 50 Yard time. Example for a female swimmer in the 60-64 year old age group - FINA WR (20.91) divided by Female 60-64 Record (29.31) times meet time (30.00) = Resolution Challenge Time of 21.40.