The only tie in this category occurred in 1993, when Fred Ebb & John Kander (Kiss of the Spider Woman) and Pete Townshend (The Who's Tommy) shared the award.
In only ten years have non-musical plays been nominated for Tony Awards in this category: Much Ado About Nothing in 1973; The Good Doctor in 1974; The Song of Jacob Zulu in 1993; Twelfth Night in 1999; Enron and Fences in 2010; Peter and the Starcatcher and One Man, Two Guvnors in 2012; Angels in America in 2018; To Kill a Mockingbird in 2019; A Christmas Carol, The Inheritance, The Rose Tattoo, Slave Play, and The Sound Inside in 2020; and Stereophonic in 2024.
The Lightning Thief was not nominated for any Tony Awards, meaning that every nominee in this category in 2020 was a play rather than a musical.
In 2015, Lisa Kron and Jeanine Tesori became the first all-woman team to win the award for Fun Home.
[1] Toby Marlow is the youngest person to win the award; he was 27 when he won in tandem with Lucy Moss for Six.