The 34-year-old Oscar winner said doing a mini-triathlon with her daughter, Ava, 11, was “hard” because she did not do enough training.
While at the Avon Foundation for Women gala event in New York City, Witherspoon told US entertainment show Extra how her daughter was dismayed by her lack of fitness and was quick to tell her the other participants did better than her in the race, causing the actress to giggle at how bad she was.
She said: 'Yeah, we did a mini-triathlon, how do people know that? I'm blissfully ignorant, I read nothing – I basically shut down the computer.”
The Legally Blonde star added: 'It was hard, my results showed my lack of training. Ava pointed out that a fifth-grader passed me.'