Staines-upon-Thames Santa Fun Run 2026 This year’s 3.5km run (or walk!) will finish just in time for the Christmas Parade, so every Santa can keep the fun going by joining the festive procession! We are doing this fun run to raise money for MidasPlus. MidasPlus is run by local people to support local individuals with physical or learning difficulties who are suffering financial hardship and demonstrate a need that cannot be fulfilled elsewhere.