Timeline of Tenkaichi Budokai

The Tenkaichi Budōkai is an invitation-only martial arts competition featuring some of the best fighters in the world. Since the [XX] Budōkai that needed to be held outdoors for the battle between Son Goku and Piccolo, the rules have been tailored towards a more casual audience and ground fighting restrictions have been put into place.

Notable Tenkaichi Budōkai tournaments

 * The Tenkaichi Budōkai tournament was first established. It was an indoor, underground human pit fight to determine what the best martial art on the planet was. The first three were completely unsanctioned. After it was determined that enough participants had lost due to losing an eye, being struck in the groin, or by being bitten from otherwise inescapable holds, these moves were omitted.
 * Mafia money began to run through the organization, and the rules were again removed for a time. The tournament was now held in dark parking garages, where only the concrete fighting area was illuminated. Large money bets were won and lost here.
 * The martial artists who masterminded the tournament, in time, rooted out the corruption from the tournament, and rules were once again implemented. The dark indoor tournament on concrete still remained.
 * The tournament stayed this way until Son Goku and the alien life form Piccolo chose to fight outdoors. Since then, the owners sold the company, who then made it more family-friendly.

Dragon Ball Origins

 * No tournaments were attended by any of the main cast.

Dragon Ball X

 * 121st Tenkaichi Budōkai

Lasting Effects: Goten salvages both he and Bra's honor while winning Vegeta and Gohan (to a lesser extent)'s respect. Vegeta's anger towards Trunks only builds with his loss.
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Dragon Ball NG

 * Tenkaichi Budōkai
 * Tenkaichi Budōkai [ALEX Era]

Dragon Ball Wars

 * Tenkaichi Budōkai

Lasting Effects: Gohan survives his heart's destruction, and is fully awake as the medical staff tend to his gaping chest wound and implant a pacemaker. This has a chilling effect on the Z-Team as they view Bryan as a fallen angel who must now cheat to win.

Dragon Ball AM
Lasting Effects: This action cements Bryan's betrayal to the M² Defense Corp and he is immediately attacked. Bryan manages to kill Kyuuri with his sword before he is gravely injured and then killed. The two continue to fight in Hell from there on.
 * Tenkaichi Budōkai

Dragon Ball: The End
This Budokai is not notable so much for its fights, as it is by the appearance of Alex during Kyuuri's match-up in the semi-finals.
 * Tenkaichi Budōkai