Best of the Super Juniors

Hiromu Takahashi holds the record for most tournament wins with four, while Jushin Thunder Liger and Koji Kanemoto have won three each.

[1] The winner, assuming they are not already the champion, receives an opportunity to wrestle for the IWGP Junior Heavyweight Championship not long after the tournament is over.

The two wrestlers with the most points at the end of the tournament, Shiro Koshinaka and Hiroshi Hase, faced off in a singles match to determine the winner.

The winner, Jushin Thunder Liger, became the first man to win the tournament while holding the IWGP Junior Heavyweight Championship.

As the result of a four-way tie for second place (Jushin Thunder Liger was also tied, but was eliminated due to injury), the four men held a playoff tournament to challenge first-place Pegasus Kid (better known as Chris Benoit) in the final; this ended up being El Samurai, who would nonetheless fall against Pegasus Kid.

Jushin Thunder Liger once again won while also the reigning Junior Heavyweight champion, and also became the first wrestler to win the tournament twice.

The Black Tiger who wrestled in the 2002 event was not Eddie Guerrero who had previously participated in the tournament under that name, but luchador Silver King, who had taken over the character in the preceding year.

It introduced the modern system of each block's top two scorers advancing to the semifinals with Masahito Kakihara winning the tournament.

Jushin Thunder Liger, after finishing first in Block A, was forced to withdraw from the tournament due to a spinal injury, leaving American Dragon to go to the semifinals instead.

The eventual winner, Tiger Mask IV, would unsuccessfully challenge Heat for the title on July 19, though he would defeat him in a rematch on January 4, 2005.

The winner, Tiger Mask IV, became the first person to win the tournament in consecutive years until Hiromu Takahashi would share he record in 2020 and 2021.

On June 7, it was announced that Prince Devitt would be forced to withdraw from the tournament due to an injury, forfeiting all scheduled matches in the process.

[20] Milano Collection A.T. became the first wrestler since Shiro Koshinaka to win the tournament on his first try, but would fail to capture the Junior Heavyweight championship.

Outside entrants included Fujita "Jr." Hayato (Michinoku Pro), Kota Ibushi (DDT Pro-Wrestling), Kenny Omega (DDT/Ring of Honor/Pro Wrestling Guerrilla, United States), Kushida (Smash), La Sombra (Consejo Mundial de Lucha Libre, Mexico), Davey Richards (ROH/PWG, United States), and Taiji Ishimori (Pro Wrestling Noah).

[35] On May 31, 2010 it was announced that Tiger Mask IV had suffered a vertebra injury during his match against La Sombra and was forced out of action for two months.

As a result of his injury Tiger Mask IV withdrew from the competition, forfeiting the rest of his matches, automatically giving all of his opponents two points.

[37] The winner of the tournament, Prince Devitt, went on to defeat Naomichi Marufuji on June 19, 2010, at Dominion 6.19 to become the new IWGP Junior Heavyweight Champion.

Outside entrants included Daisuke Sasaki (freelancer), Fujita "Jr." Hayato (Michinoku Pro), Great Sasuke (Michinoku Pro), Kenny Omega (DDT Pro-Wrestling, United States), Kota Ibushi (DDT), Máscara Dorada (Consejo Mundial de Lucha Libre, Mexico), and TJP (freelancer, United States).

[65] On May 25, New Japan announced that Black Tiger had been pulled from the tournament, two days after the character's performer Nosawa Rongai had been arrested for smuggling marijuana.

[96] The participants were announced on May 4; outside entrants included Kenny Omega (DDT), Máscara Dorada (Consejo Mundial de Lucha Libre) and Ricochet (Dragon Gate).

[97] For the first time in four years, the reigning IWGP Junior Heavyweight Champion did not take part in the tournament as Kota Ibushi was concentrating on chasing the NEVER Openweight Championship.

[98] Alex Shelley won block B of the tournament, but was forced to pull out of the semifinals after suffering a shoulder injury in his final round-robin match.

[107] The participants were announced on May 7; outside entrants included Bárbaro Cavernario (Consejo Mundial de Lucha Libre), Bobby Fish (Ring of Honor), Chase Owens (National Wrestling Alliance), Kyle O'Reilly (ROH) and the debuting David Finlay Jr., the son of Dave Finlay.

[127] Ospreay went on to unsuccessfully challenge Kushida for the IWGP Junior Heavyweight Championship on June 19 at Dominion 6.19 in Osaka-jo Hall.

[192] On the intermission of the November 2, 2020 Road to Power Struggle show, it was announced that the tournament will be held in a single block format with ten participants.

[193] Yoshinobu Kanemaru was scheduled to participate in the tournament, however, he pulled out due to injury and was replaced by young lion Yuya Uemura.

For the first time in 2 years, the tournament went back to its traditional calendar position of mid-May–early June, ran on its own separate from World Tag League, and returned to a two-block format, featuring wrestlers from NJPW Strong, Consejo Mundial de Lucha Libre (CMLL), Impact Wrestling, Gleat, and All Elite Wrestling (AEW).

[197] Most of NJPW's junior regulars are featured, including Titán from Consejo Mundial de Lucha Libre (CMLL) and Kushida, in his first BOSJ since 2018.

[198] Taiji Ishimori withdrew from the tournament after suffering a cervical spine injury, forcing him to forfeit his final match.

Originally, Yoh and Ryusuke Taguchi were scheduled to participate in the tournament, but due to injuries, were replaced by Kushida and Dia, respectively.