As to how, both nominees received the same number of votes.
There have been several ties in Tony history:
- Actress in a Musical (195
: Gwen Verdon, New Girl in Town and Thelma Ritter, New Girl in Town
- Featured Actor in a Musical (1959): Russell Nype, Goldilocks, and Leonard Stone, Redhead
- Musical (1960): The Sound of Music and Fiorello!
- Actress in a Musical (1962): Anna Maria Alberghetti, Carnival! and Diahann Carroll, No Strings
- Actress in a Musical (196
: Patricia Routledge, Darling of the Day and Leslie Uggams, Hallelujah, Baby!
- Costume Design (1977): Theoni V. Aldredge, Annie and Santo Loquasto, The Cherry Orchard
- Actress in a Play (1979): Constance Cummings, Wings and Carole Shelley, The Elephant Man
- Scenic Design (1980): John Lee Beatty, Talley's Folly and David Mitchell, Barnum
- Score (1993): John Kander/Fred Ebb, Kiss of the Spider Woman and Pete Townshend, The Who's Tommy
- Orchestrations (2009): Martin Koch, Billy Elliot, The Musical and Michael Starobin and Tom Kitt, Next to Normal
https://www.tonyawards.com/en_US/history/facts/index.html