Tenka Sanbun no Kei (Japanese: 天下三分の計) was a series of professional wrestling events co-promoted by Big Japan Pro Wrestling (BJW), DDT Pro-Wrestling (DDT) and Kaientai Dojo (K-Dojo) between 2007 and 2015.
Tenka Sanbun no Kei was a series of tours in which BJW, DDT and K-Dojo held shows in the morning, afternoon and night at the same venue on the same day.
The name "Tenka Sanbun no Kei" is a reference to the historical events surrounding the Longzhong Plan during the Three Kingdoms period.
In addition to the three main dates in Sapporo, Kobe and Fukuoka, the tour featured three non-televised events held by the three promotions together.
The first date of the tour was a joint show held at the Tonyamachi Big Sight in Aomori.