Tenkaichi Junior

Tenkaichi Junior (天下一Jr.) is an annual professional wrestling round-robin tournament held by Pro Wrestling Zero1 to determine the top junior heavyweight wrestler in the promotion, typically contested in late November/December. In addition to Zero1 members, it has frequently included outside stars, mainly freelancers performing in the Japanese independent scene.

The tournament has lately been presented as featuring two blocks, each with five participants, with the two block winners facing off in the final to determine the overall champion. In 2002, from 2006 to 2016, and between 2018 and 2019, the tournament featured only knock-out stages.

2002
The inaugural edition of the tournament was held between November 15 and December 15, 2002.

2004
The 2004 edition of the tournament took place between April 8 and April 30.

2005
The 2005 edition of the tournament took place between May 20 and May 29.

2006
The 2006 edition of the tournament took place between August 24 and 26. The finals of the edition were also disputed for the vacant Zero1 International Junior Heavyweight Championship.

2007
The 2007 edition of the tournament took place between September 25 and September 30.

2008
The 2008 edition of the tournament took place between October 28 and November 8. The tournament was divided in two separate competitions, the Tenkaichi Primary which took place on the very first date of the event, and the greater tournament which followed the normal schedule of the competition

2009
The 2009 edition of the tournament took place between November 19 and 29. The finals of the edition were also disputed for the vacant Zero1 International Junior Heavyweight Championship.

2010
The 2010 edition of the event took place between September 14 and 19.

2011
The 2011 edition of the tournament took place between September 13 and 17.

2012
The 2012 edition of the tournament took place between September 12 and 17.

2013
The 2013 edition of the tournament took place between September 9 and 16. The finals of the edition were also disputed for Mineo Fujita's Zero1 International Junior Heavyweight Championship

2015
The 2015 edition took place between June 29 and July 16.

2016
The 2016 edition of the tournament took place between September 20 and 29.
 * First rounds (September 20)
 * Ikuto Hidaka defeated Takuya Nomura (10:32)
 * Isami Kodaka defeated Shinya Ishida (9:52)
 * Takuya Sugawara defeated Último Dragón (12:10)
 * Tatsuhito Takaiwa defeated Masashi Takeda (12:02)
 * Second rounds (September 20)
 * Kotaro Suzuki defeated Ikuto Hidaka (17:11)
 * Tatsuhito Takaiwa defeated Hayato Fujita (12:30)
 * Semifinals (September 29)
 * Kotaro Suzuki defeated Tatsuhito Takaiwa (11:15)
 * Takuya Sugawara defeated Isami Kodaka (9:15)
 * Finals (September 29)
 * Takuya Sugawara defeated Kotaro Suzuki (15:21)

2017
The 2017 edition took place between April 4 and 26.

2018
The 2018 edition of the tournament took place between November 17 and 24. The finals were also disputed for the vacant Zero1 World Junior Heavyweight Championship and International Junior Heavyweight Championship.

2019
The 2019 edition of the tournament took place between September 1 and 14.

2020
The 2020 edition of the tournament took place between July 5 and August 2.
 * First rounds (July 5)
 * Yumehito Imanari defeated Shinjiro Otani (0:22)
 * Shoki Kitamura defeated Drew Parker (13:02)
 * Shinjiro Otani vs. Yumehito Imanari ended in a time-limit draw (20:00)
 * Second rounds (July 19–25)
 * Shoki Kitamura defeated Hide Kubota (12:57)
 * El Lindaman defeated Ganseki Tanaka (11:34)
 * Raicho defeated Sugi (10:54)
 * Hub defeated Yumehito Imanari (15:28)
 * Semifinals (July 16)
 * Shoki Kitamura defeated Raicho (11:58)
 * El Lindaman defeated Hub (11:14)
 * Finals (July 26)
 * Shoki Kitamura defeated El Lindaman (18:57)

2021
The 2021 edition of the tournament took place between August 24 and September 9. The finals were also disputed for the vacant Zero1 World Junior Heavyweight Championship and International Junior Heavyweight Championship.
 * First rounds (August 24)
 * Junta Miyawaki defeated Takumi Baba (11:57)
 * Fuminori Abe defeated Ricky Fuji (9:56)
 * Leo Isaka defeated Genta Hiriki (10:41)
 * Shoki Kitamura defeated Arata (10:58)
 * Second rounds (September 4)
 * Junta Miyawaki defeated Andy Wu (12:50)
 * Hide Kubota defeated Leo Isaka (15:09)
 * Semifinals (September 9)
 * Shoki Kitamura defeated Junta Miyawaki (12:10)
 * Fuminori Abe defeated Hide Kubota (8:17)
 * Finals (September 9)
 * Fuminori Abe defeated Shoki Kitamura (15:00)

2022
The 2022 edition of the tournament took place between September 9 and October 19.

2023
The 2023 edition of the tournament will take place between September 22 and October 27.