History ShoutOut / HajimeNoIppo

** He could also be named after [[https://en.wikipedia.org/wiki/Samson_Dutch_Boy_Gym Samson Dutch Boy Gym]] (แซมซั่น ดัทช์บอยยิม), which is one of the fight names of former Muay Thai practitioner turned super flyweight boxing champion Somboon Phantasi (สมบุญ พานตะสี).

* In Chapter 224, Kamogawa comments on Sendo's insane match schedule, where he has a match every two months. He says it reminds him of the match pace of Julio Cesar Chavez, who was mentioned to have an 87-win streak and 75 knockouts[[note]](so that means the chapter was set before or after his draw with Pernell Whitaker in 1993)[[/note]]. He had his legendary record because of the high volume of title and non-title matches he had.[[note]]The Ippo Wiki lists the date of Eiji Date's match with Jeff Brooks on the same chapter as August 1992, which results in a ContinuitySnarl because on that same date, Chavez should've instead had an 81-win streak, with Frankie Mitchell being his 81[[superscript:st]] conquest on August 1992.[[/note]]

* In Chapter 224, Kamogawa comments on Sendo's insane match schedule, where he has a match every two months. He says it reminds him of the match pace of Julio Cesar Chavez, who was mentioned to have an 87-win streak and 75 knockouts[[note]](so that means the chapter was set before or after his draw with Pernell Whitaker in 1993)[[/note]]. He had his legendary record because of the high volume of title and non-title matches he had.[[note]]The Ippo Wiki lists the date of Eiji Date's match with Jeff Brooks on the same chapter at August 1992, which results in a ContinuitySnarl because on that same date, Chavez should've instead had an 81-win streak, with Frankie Mitchell being his 81[[superscript:st]] conquest on August 1992.[[/note]]

* In Chapter 224, Kamogawa comments on Sendo's insane match schedule, where he has a match every two months. He says it reminds him of the match pace of Julio Cesar Chavez, who was mentioned to have an 87-win streak and 75 knockouts[[note]](so that means the chapter was set before or after his draw with Pernell Whitaker in 1993)[[/note]]. He had his legendary record because of the high volume of title and non-title matches he had.[[note]]The Ippo Wiki lists the date of Eiji Date's match with Jeff Brooks on the same chapter at August 1992, which results in a ContinuitySnarl because on that same date, Chavez should've instead had an 81-win streak, with Frankie Mitchell being his 81[[supscript:st]] conquest on August 1992.[[/note]]

* [[https://ippo.fandom.com/wiki/Arnie_Gregory Arnie Gregory]] is an Aussie boxer who Miyata claims resembles Tatsuya Kimura style-wise but also has Ippo's power and aggression for good measure.
** He also resembles three-weight champion and fellow Australian [[https://en.wikipedia.org/wiki/Jeff_Fenech Jeff "Marickville Mauler" Fenech]].

* [[https://ippo.fandom.com/wiki/Arnie_Gregory Arnie Gregory]] is an Aussie boxer who Miyata claims resembles Tatsuya Kimura style-wise but also has Ippo's power and aggression. He also resembles three-weight champion and fellow Australian [[https://en.wikipedia.org/wiki/Jeff_Fenech Jeff Fenech]].

** [[InconsistentSpelling Charlie Dognos/Charlito Degnos]] might refer to Filipino boxer [[https://boxrec.com/en/box-pro/2845 Charlito/Titing "Boy Birador" Dignos]]. In 1992, he fought a [[https://www.youtube.com/watch?v=DjT8l2dlUPc memorable bout]] in Japan against fellow Filipino[[note]]and Ricardo Lopez victim[[/note]] [[https://boxrec.com/en/box-pro/4204 Andy "Otsuka" Tabanas]].[[note]]Back in 1984, he also lost against future world champion [[https://boxrec.com/en/proboxer/460 Luisito Espinosa]] early on in their careers. He even has a relative also named [[https://boxrec.com/en/box-pro/321169 Charlito Dignos]] as well. He is currently a [[https://www.youtube.com/watch?v=NjwOI6N6Ssc boxing coach]] with his own [[https://www.youtube.com/@charlitodignos5017 YouTube channel]].[[/note]]

* There's also Filipino boxer [[https://ippo.fandom.com/wiki/Luisito_Ico Luisito Ico]], who is likely based on [[https://en.wikipedia.org/wiki/Luisito_Espinosa Luisito Espinosa]][[note]]'''Full Name:''' Luisito ''Pio'' Espinosa; '''Ring Name:''' ''Lindol'' (Earthquake)[[/note]], a two-weight-class champion who was active in the [[TheNineties 1990s]].
* [[https://ippo.fandom.com/wiki/Arnie_Gregory Arnie Gregory]] is an Aussie boxer who Miyata claims resembles Tatsuya Kimura style-wise but also has Ippo's power and aggression. He also resembles three-weight champion and fellow Australian [[https://en.wikipedia.org/wiki/Jeff_Fenech Jeff Fenech]].

* Also in Chapter 1,273, Takeshi Sendo and Hiroyuki Hoshi could've visited [[http://en.wikipedia.org/wiki/Teotihuacan Teotihuacan]][[note]]which is 25 miles (40 km) from Mexico City[[/note]]. However, they also visited [[https://en.wikipedia.org/wiki/El_Castillo,_Chichen_Itza El Castillo at Chichen Itza]] in [[NoSenseOfDirection Yucatán State, Mexico]][[note]]which is 891 miles (1,433.7 km) away from Mexico City, where it would take [[RefugeInAudacity more than a few days]] to [[TravelingAtTheSpeedOfPlot travel by walking]] 800 miles to there and 800 miles back to Mexico City[[/note]].

* There's also Filipino boxer [[https://ippo.fandom.com/wiki/Luisito_Ico Luisito Ico]], who is likely based on [[https://en.wikipedia.org/wiki/Luisito_Espinosa Luisito Espinosa]][[note]]'''Full Name:''' Luisito ''Pio'' Espinosa; '''Ring Name:''' ''"Lindol"'' (Earthquake)[[/note]], a two-weight-class champion who was active in the [[TheNineties 1990s]].

** [[InconsistentSpelling Charlie Dognos/Charlito Degnos]] might refer to Filipino boxer [[https://boxrec.com/en/box-pro/2845 Charlito/Titing "Boy Birador" Dignos]]. In 1992, he fought a [[https://www.youtube.com/watch?v=DjT8l2dlUPc memorable bout]] in Japan against fellow Filipino[[note]]and Ricardo Lopez victim[[/note]] [[https://boxrec.com/en/box-pro/4204 Andy "Otsuka" Tabanas]].[[note]]Back in 1984, he also lost against future world champion [[https://boxrec.com/en/proboxer/460 Luisito Espinosa]] early on in their careers. He even has a relative named [[https://boxrec.com/en/box-pro/321169 Charlito Dignos]] as well. He is currently a [[https://www.youtube.com/watch?v=NjwOI6N6Ssc boxing coach]] with his own [[https://www.youtube.com/@charlitodignos5017 YouTube channel]].[[/note]]

** [[InconsistentSpelling Charlie Dognos/Charlito Degnos]] might refer to Filipino boxer [[https://boxrec.com/en/box-pro/2845 Charlito/Titing "Boy Birador" Dignos]]. In 1992, he fought and lost a [[https://www.youtube.com/watch?v=DjT8l2dlUPc memorable bout]] in Japan against fellow Filipino[[note]]and Ricardo Lopez victim[[/note]] [[https://boxrec.com/en/box-pro/4204 Andy "Otsuka" Tabanas]].[[note]]Back in 1984, he also fought and lost against future world champion [[https://boxrec.com/en/proboxer/460 Luisito Espinosa]] early on in their careers. He even has a relative named [[https://boxrec.com/en/box-pro/321169 Charlito Dignos]] as well. He is currently a [[https://www.youtube.com/watch?v=NjwOI6N6Ssc boxing coach]] with his own [[https://www.youtube.com/@charlitodignos5017 YouTube channel]].[[/note]]

** [[InconsistentSpelling Charlie Dognos/Charlito Degnos]] might refer to Filipino boxer [[https://boxrec.com/en/box-pro/2845 Charlito/Titing "Boy Birador" Dignos]]. In 1992, he fought and lost a [[https://www.youtube.com/watch?v=DjT8l2dlUPc memorable bout]] in Japan against fellow Filipino [[https://boxrec.com/en/box-pro/4204 Andy "Otsuka" Tabanas]], another Ricardo Lopez victim.[[note]]Back in 1984, he also fought and lost against future world champion [[https://boxrec.com/en/proboxer/460 Luisito Espinosa]] early on in their careers. He even has a relative named [[https://boxrec.com/en/box-pro/321169 Charlito Dignos]] as well. He is currently a [[https://www.youtube.com/watch?v=NjwOI6N6Ssc boxing coach]] with his own [[https://www.youtube.com/@charlitodignos5017 YouTube channel]].[[/note]]

** [[InconsistentSpelling Charlie Dognos/Charlito Degnos]] might refer to Filipino boxer [[https://boxrec.com/en/box-pro/2845 Titing/Charlito "Boy Birador" Dignos]]. In 1992, he fought and lost a [[https://www.youtube.com/watch?v=DjT8l2dlUPc memorable bout]] in Japan against fellow Filipino [[https://boxrec.com/en/box-pro/4204 Andy "Otsuka" Tabanas]], another Ricardo Lopez victim.[[note]]Back in 1984, he also fought and lost against future world champion [[https://boxrec.com/en/proboxer/460 Luisito Espinosa]] early on in their careers. He even has a relative named [[https://boxrec.com/en/box-pro/321169 Charlito Dignos]] as well. He is currently a [[https://www.youtube.com/watch?v=NjwOI6N6Ssc boxing coach]] with his own [[https://www.youtube.com/@charlitodignos5017 YouTube channel]].[[/note]]

* There's also Filipino boxer [[https://ippo.fandom.com/wiki/Luisito_Ico Luisito Ico]], who is likely based on [[https://en.wikipedia.org/wiki/Luisito_Espinosa Luisito Espinosa]][[note]]'''Full Name:''' Luisito ''Pio'' Espinosa; '''Ring Name:''' ''"Lindol"'' (Earthquake)[[/note]], a two-weight-class champion who was active in the [[TheNineties1990s]].

* There's also Filipino boxer [[https://ippo.fandom.com/wiki/Luisito_Ico Luisito Ico]], who is likely based on [[https://en.wikipedia.org/wiki/Luisito_Espinosa Luisito Espinosa]][[note]]'''Full Name:''' Luisito '''Pio''' Espinosa; '''Ring Name:''' ''"Lindol"'' (Earthquake)[[/note]], a two-weight-class champion who was active in the 1990s.

* There's also Filipino boxer [[https://ippo.fandom.com/wiki/Luisito_Ico Luisito Ico]], who is likely based on [[https://en.wikipedia.org/wiki/Luisito_Espinosa Luisito
Espinosa]][[note]]'''Full Name:''' Luisito '''Pio''' Espinosa; '''Ring Name:''' ''"Lindol"'' (Earthquake)[[/note]], a two-weight-class champion who was active in the 1990s.

Espinosa]][[note]]'''Full Name:''' Luisito ''Pio'' Espinosa. '''Ring Name:''' ''"Lindol"'' (Earthquake).[[/note]], a two-weight-class champion who was active in the 1990s.

* There's also Filipino boxer [[https://ippo.fandom.com/wiki/Luisito_Ico Luisito Ico]], who is likely based on [[https://en.wikipedia.org/wiki/Luisito_Espinosa Luisito ''"Lindol"'' (Earthquake) Espinosa]][[note]]'''Full Name:'''Luisito '''Pio''' Espinosa[[/note]], a two-weight-class champion who was active in the 1990s.

* In Vol. 26, the volume cover features a running [[CanineCompanion Hachi]] and Ippo wearing a "Joe is Back" t-shirt, referring to the comeback match of [[https://ippo.fandom.com/wiki/Joechiro_Tatsuyoshi Joechiro Tatsuyoshi]] in Hawaii in 1994, where he defeated his opponent, [[https://boxrec.com/en/box-pro/1679 Josefino Suarez]], in just three rounds after being almost forced to retire because of a detached left retina received in his previous match with Victor Rabanales.

* There's also Filipino boxer [[https://ippo.fandom.com/wiki/Luisito_Ico Luisito Ico]], who is likely based on [[https://en.wikipedia.org/wiki/Luisito_Espinosa Luisito "Lindol" (Earthquake) Espinosa]][[note]]'''Full Name:'''Luisito '''Pio''' Espinosa[[/note]], a two-weight-class champion who was active in the 1990s.

** [[InconsistentSpelling Charlie Dognos/Charlito Degnos]] might refer to Filipino boxer [[https://boxrec.com/en/box-pro/2845 Titing/Charlito "Boy Birador" Dignos]]. In 1992, he fought and lost a [[https://www.youtube.com/watch?v=DjT8l2dlUPc memorable bout]] in Japan against fellow Filipino [[https://boxrec.com/en/box-pro/4204 Andy "Otsuka" Tabanas]], another Ricardo Lopez victim.[[note]]Back in 1984, he also fought and lost against future world champion [[https://boxrec.com/en/proboxer/460 Luisito Espinosa]] early on in their careers. He even has a relative named [[https://boxrec.com/en/box-pro/321169 Charlito Dignos]]. He is currently a [[https://www.youtube.com/watch?v=NjwOI6N6Ssc boxing coach]] with his own [[https://www.youtube.com/@charlitodignos5017 YouTube channel]].[[/note]]

** [[InconsistentSpelling Charlie Dognos/Charlito Degnos]] might refer to Filipino boxer [[https://boxrec.com/en/box-pro/2845 Titing/Charlito "Boy Birador" Dignos]]. In 1992, he fought and lost a [[https://www.youtube.com/watch?v=DjT8l2dlUPc memorable bout]] in Japan against fellow Filipino [[https://boxrec.com/en/box-pro/4204 Andy "Otsuka" Tabanas]], another Ricardo Lopez victim.[[note]]Back in 1984, he also fought and lost against future world champion [[https://boxrec.com/en/proboxer/460 Luisito Espinosa]] early on in their careers. He even has a relative named [[https://boxrec.com/en/box-pro/321169 Charlito Dignos]] who fought from 1989-1992 and has a record of 1 win and 2 losses. He is currently a [[https://www.youtube.com/watch?v=NjwOI6N6Ssc boxing coach]] with his own [[https://www.youtube.com/@charlitodignos5017 YouTube channel]].[[/note]]

* In Chapter 225, when Ginpachi Nekota saw Kimura and Aoki, he [[MistakenIdentity mistakes them]] for Junior Flyweight "Charlie Dognos" and Strawweight "Rocky Lynne".

* In Chapter 672, although Yuta Ishii fought and lost against an ''unnamed'' world bantamweight champion on March 1995 according to the Ippo Wiki, the champion is likely based on long-time WBC Bantamweight Champion [[https://en.wikipedia.org/wiki/Veeraphol_Sahaprom Veeraphol Sahaprom]] (วีระพล สหพรหม), who reigned from 1998 to 2005.[[note]]This is based on the release date of Chapter 672 at the time (between December 2004 and March 2005, the release dates for Volumes 71 and 72, with Volume 72 being the volume that Chapter 672 belonged to).[[/note]]

** [[InconsistentSpelling Charlie Dognos/Charlito Degnos]] might refer to Filipino boxer [[https://boxrec.com/en/box-pro/2845 Titing "Boy Birador" Dignos]]. In 1992, he fought and lost a [[https://www.youtube.com/watch?v=DjT8l2dlUPc memorable bout]] in Japan against fellow Filipino [[https://boxrec.com/en/box-pro/4204 Andy "Otsuka" Tabanas]], another Ricardo Lopez victim.[[note]]Back in 1984, he also fought and lost against future world champion [[https://boxrec.com/en/proboxer/460 Luisito Espinosa]] early on in their careers. He has a relative named [[https://boxrec.com/en/box-pro/321169 Charlito Dignos]] who fought from 1989-1992 and has a record of 1 win and 2 losses. He is currently a [[https://www.youtube.com/watch?v=NjwOI6N6Ssc boxing coach]] and he has a nephew named [[https://www.youtube.com/watch?v=RAUhWzbUMBA Charlie]] whom he trains with.[[/note]]

* There's also Filipino boxer [[https://ippo.fandom.com/wiki/Luisito_Ico Luisito Ico]], who is likely based on [[https://en.wikipedia.org/wiki/Luisito_Espinosa Luisito "Lindol" (Earthquake) Espinosa]][[note]]Full Name:Luisito Pio Espinosa[[/note]], a two-weight-class champion who was active in the 1990s.

** Rocky Lynne is probably a reference to [[https://boxrec.com/en/box-pro/1236 Rocky Lin]], who was a [[https://www.asianboxing.info/features/rocky-lin-the-hero-of-taiwan popular Taiwanese boxer]] who regularly fought in Japan.[[note]]One of his most notable matches was against the undefeated Ricardo Lopez in Japan at Kōrakuen Hall on October 11, 1992, where he lost in the 2[[superscript:nd]] round. The Lopez match was 1 of only 2 losses Rocky Lin suffered throughout his 10-year career, leaving him with a record of 26 wins and 2 losses.[[/note]]
** [[InconsistentSpelling Charlie Dognos/Charlito Degnos]] might refer to Filipino boxer [[https://boxrec.com/en/box-pro/2845 Titing "Boy Birador" Dignos]]. In 1992, he fought and lost a [[https://www.youtube.com/watch?v=DjT8l2dlUPc memorable bout]] in Japan against fellow Filipino [[https://boxrec.com/en/box-pro/4204 Andy "Otsuka" Tabanas]], another Ricardo Lopez victim.[[note]]Back in 1984, he also fought and lost against future world champion [[https://boxrec.com/en/proboxer/460 Luisito Espinosa]] early on in their careers. He has a relative named [[https://boxrec.com/en/box-pro/321169 Charlito Dignos]] who has a record of 1 win and 2 losses against fellow Filipinos from 1989-1992. He is currently a [[https://www.youtube.com/watch?v=NjwOI6N6Ssc boxing coach]] and he has a nephew named [[https://www.youtube.com/watch?v=RAUhWzbUMBA Charlie]] whom he trains with.[[/note]]

** Rocky Lynne is probably a reference to [[https://boxrec.com/en/box-pro/1236 Rocky Lin]], who was a [[https://www.asianboxing.info/features/rocky-lin-the-hero-of-taiwan popular Taiwanese boxer]] who regularly fought in Japan.[[note]]One of his most notable matches was against the undefeated Ricardo Lopez in Japan at Kōrakuen Hall on October 11, 1992, where he lost in the 2[[superscript:nd]] round. The Lopez match was 1 of only 2 losses Rocky Lin suffered throughout his 10-year career, leaving him with a record of 26 wins, 2 losses, and 0 draws.[[/note]]
** [[InconsistentSpelling Charlie Dognos/Charlito Degnos]] might refer to [[https://boxrec.com/en/box-pro/2845 Titing "Boy Birador" Dignos]]. In 1992, he fought and lost a [[https://www.youtube.com/watch?v=DjT8l2dlUPc memorable bout]] in Japan against fellow Filipino [[https://boxrec.com/en/box-pro/4204 Andy "Otsuka" Tabanas]], another Ricardo Lopez victim.[[note]]Back in 1984, he also fought and lost against future world champion [[https://boxrec.com/en/proboxer/460 Luisito Espinosa]] early on in their careers. He has a relative named [[https://boxrec.com/en/box-pro/321169 Charlito Dignos]] who has 1 win and 2 losses against fellow Filipinos from 1989-1992. He is currently a [[https://www.youtube.com/watch?v=NjwOI6N6Ssc boxing coach]] and he has a nephew named [[https://www.youtube.com/watch?v=RAUhWzbUMBA Charlie]] whom he trains with.[[/note]]

** [[InconsistentSpelling Charlie Dognos/Charlito Degnos]] might refer to [[https://boxrec.com/en/box-pro/2845 Titing "Boy Birador" Dignos]]. In 1992, he fought and lost a [[https://www.youtube.com/watch?v=DjT8l2dlUPc memorable bout]] in Japan against fellow Filipino [[https://boxrec.com/en/box-pro/4204 Andy "Otsuka" Tabanas]], another Ricardo Lopez victim.[[note]]Back in 1984, he also fought and lost against future world champion [[https://boxrec.com/en/proboxer/460 Luisito Espinosa]] early on in their careers. He is currently a [[https://www.youtube.com/watch?v=NjwOI6N6Ssc boxing coach]] and he has a nephew named [[https://www.youtube.com/watch?v=RAUhWzbUMBA Charlie]] whom he trains with.[[/note]]

** [[InconsistentSpelling Charlie Dognos/Charlito Degnos]] might refer to [[https://boxrec.com/en/box-pro/2845 Orcino/Titing "Boy Birador" Dignos]]. In 1992, he fought and lost a [[https://www.youtube.com/watch?v=DjT8l2dlUPc memorable bout]] in Japan against fellow Filipino [[https://boxrec.com/en/box-pro/4204 Andy "Otsuka" Tabanas]], another Ricardo Lopez victim.[[note]]Back in 1984, he also fought and lost against future world champion [[https://boxrec.com/en/proboxer/460 Luisito Espinosa]] early on in their careers. He is currently a [[https://www.youtube.com/watch?v=NjwOI6N6Ssc boxing coach]] and he has a nephew named [[https://www.youtube.com/watch?v=RAUhWzbUMBA Charlie]] whom he trains with.[[/note]]

* There's also Filipino boxer [[https://ippo.fandom.com/wiki/Luisito_Ico Luisito Ico]], who is likely based on [[https://en.wikipedia.org/wiki/Luisito_Espinosa Luisito Pio Espinosa]], a two-weight-class champion who was active in the 1990s.