After not finding enough funding to remain in open-wheel racing for 2019, Telitz was contacted by Jimmy Vasser in late 2018 to compete for his WeatherTech SportsCar Championship team for the four endurance championship events, starting with the 2019 24 Hours of Daytona with co-drivers Townsend Bell, Frankie Montecalvo and Jeff Segal. As part of the deal, Telitz would accompany Vasser's IMSA and IndyCar teams to all other events in hopes of moving to the IndyCar operation. He started off the season with a second place at Daytona.