George Henry "K.O." Chaney (born April 16, 1892 – December 20, 1958) was a featherweight and super-featherweight boxer active from 1910 to 1928. Chaney was born in Baltimore, Maryland to Irish-American parents. Boxing Illustrated ranked him fourth of all-time in terms of pound-for-pound punchers, while the Bleacher Report named him the 14th greatest southpaw in boxing history. He was inducted into the International Boxing Hall of Fame in 2014.

Professional career Chaney was afflicted with a "glass jaw", which was often his downfall against top ranked opponents. Chaney fought many professional lightweights and featherweights from his era, including Johnny Dundee, Rocky Kansas, Lew Tendler, and Abe Attell. Chaney was included in Ring Magazine's list of 100 greatest punchers of all time.

Chaney was afforded two opportunities to win a world title.

On September 4, 1916, he challenged world featherweight champion Johnny Kilbane. Chaney lost to Kilbane by knockout in round 3. His second title opportunity came when he sought to capture the newly created world junior lightweight title on November 18, 1921. Chaney fought Johnny Dundee for the championship, but was disqualified in the fifth round.George KO Chaney's Professional Boxing Record. BoxRec.com. Retrieved on 2014-05-18.

His bout with Rocky Kansas at old Oriole Park in 1920 was said to be one of the most brutal and bloody bouts ever held in Baltimore.

Professional boxing record All information in this section is derived from BoxRec, unless otherwise stated.

Official record

All newspaper decisions are officially regarded as “no decision” bouts and are not counted in the win/loss/draw column. ResultRecordOpponentTypeRound, timeDateLocationNotes178Loss101–21–3 Danny KramerKO1 (10)Aug 10, 1925Shibe Park, Philadelphia, Pennsylvania, US177Loss101–20–3 Tommy O'BrienKO6 (10), Feb 23, 1925Madison Square Garden, New York, New York, US176Win101–19–3 Ray MitchellKO5 (10)Nov 27, 1924175Win100–19–3 Danny KramerKO1 (10)Sep 8, 1924174Win99–19–3 Danny RodgersTKO2 (8)Jun 23, 1924173Loss98–19–3 Red Cap WilsonDQ2 (12)Apr 16, 1924172Loss98–18–3 Ted MarchantDQ3 (12)Dec 5, 1923171Loss98–17–3 Harry 'Kid' BrownDQ1 (8)Sep 24, 1923170Win98–16–3 Georgie RussellKO2 (8)Sep 7, 1923169Loss97–16–3 Danny KramerDQ2 (8)May 24, 1923168Win97–15–3 Pep O'BrienKO1 (8)Mar 22, 1923167Draw96–15–3 Bobby WardNWS10Mar 5, 1923166Win96–15–3 Alex HartNWS8Feb 12, 1923165Win96–15–3 Henry KosterKO1 (8)Feb 6, 1923164Win95–15–3 Frankie RiceKO1 (12), Jan 29, 1923163Loss94–15–3 Alex HartNWS8Dec 25, 1922162Win94–15–3 Charley PittsNWS8Nov 20, 1922161Win94–15–3 Shamus O'BrienNWS8Oct 9, 1922160Win94–15–3 Billy AngeloKO6 (8)Sep 11, 1922159Win93–15–3 Earl FranceTKO2 (8)Aug 24, 1922158Win92–15–3 Allie NackKO1 (8)Jun 6, 1922157Win91–15–3 Jimmy HanlonNWS8Apr 27, 1922156Win91–15–3 Shamus O'BrienPTS12Apr 25, 1922155Win90–15–3 Jimmy HanlonNWS8Mar 28, 1922154Loss90–15–3 Shamus O'BrienNWS8Mar 4, 1922153Win90–15–3 Alex HartNWS8Feb 23, 1922152Win90–15–3 Harry CarlsonKO5 (8)Jan 30, 1922151Win89–15–3 Alex HartTKO4 (8)Jan 17, 1922150Win88–15–3 Otto WallacePTS12Jan 2, 1922149Win87–15–3 Mike PaulsonNWS8Dec 26, 1921148Loss87–15–3 Freddie JacksDQ2 (8)Dec 5, 1921147Loss87–14–3 Johnny DundeeDQ5 (15), Nov 18, 1921146Win87–13–3 Phil SalvadoreTKO3 (8)Nov 7, 1921145Win86–13–3 Sammy StoneKO2 (8)Aug 24, 1921144Win85–13–3 Bruiser KellyKO2 (12)Aug 4, 1921Oriole Park, Baltimore, Maryland, US143Loss84–13–3 Johnny DundeeNWS8Jul 18, 1921142Win84–13–3 Joe TiplitzNWS8Jun 29, 1921141Loss84–13–3 Johnny DundeePTS10Jun 10, 1921140Win84–12–3 Billy McCannNWS12Jun 2, 1921League Park, Cleveland, Ohio, US139Win84–12–3 Al Murphy KO6 (10)May 12, 1921138Win83–12–3 Vincent 'Pepper' Martin DQ2 (8)Apr 18, 1921137Win82–12–3 Billy Angelo TKO3 (8)Mar 28, 1921136Win81–12–3 Gene Delmont NWS8Mar 14, 1921135Loss81–12–3 Willie Ritchie DQ8 (10)Mar 10, 1921134Win81–11–3 Tim DroneyKO3 (12)Mar 4, 1921133Win80–11–3 Babe PicatoKO2 (8), Feb 7, 1921132Win79–11–3 Cal DelaneyKO3 (10)Jan 31, 1921131Win78–11–3 Al MurphyTKO5 (8)Jan 10, 1921130Win77–11–3 Georges PapinTKO3 (12)Jan 6, 1921129Win76–11–3 Charley MetrieKO1 (8)Dec 13, 1920128Win75–11–3 Joe PhillipsKO3 (12)Nov 26, 1920127Win74–11–3 Johnny MahoneyTKO4 (8)Nov 15, 1920126Win73–11–3 Johnny RoseTKO6 (12)Nov 12, 1920125Win72–11–3 George BrownKO1 (10), Nov 5, 1920Madison Square Garden, New York, New York, US124Win71–11–3 George ReynoldsKO1 (8)Sep 25, 1920Fulton Opera House, Lancaster, Pennsylvania, US123Win70–11–3 Tim DroneyNWS8Sep 13, 1920122Loss70–11–3 Rocky KansasPTS12Aug 23, 1920121Loss70–10–3 Joe WellingNWS8Jun 23, 1920120Loss70–10–3 Joe WellingNWS6May 19, 1920119Win70–10–3 Happy SmithTKO6 (12)Mar 26, 1920118Win69–10–3 Whitey FitzgeraldNWS6Mar 17, 1920117Win69–10–3 Frankie BrownNWS6Jan 1, 1920116Loss69–10–3 Benny ValgerDQ3 (6)Dec 13, 1919115Win69–9–3 Johnny DrummieKO4 (12)Dec 5, 1919114Win68–9–3 Eddie MoyPTS12Nov 14, 1919113Loss67–9–3 Joe TiplitzTKO4 (6), Jul 14, 1919112Loss67–8–3 Lew TendlerKO1 (6), Jun 4, 1919111Win67–7–3 Babe PicatoKO4 (10)May 30, 1919110Win66–7–3 Jack RussoNWS6Apr 12, 1919109Win66–7–3 Young George ErneNWS10Mar 17, 1919108Win66–7–3 Phil BloomPTS12Mar 14, 1919107Win65–7–3 Tim DroneyNWS6Mar 8, 1919106Win65–7–3 Chick SimlerPTS12Feb 28, 1919105Win64–7–3 Phil BloomPTS12Feb 14, 1919104Win63–7–3 Pete HartleyNWS6Feb 8, 1919103Loss63–7–3 Lew TendlerNWS6Sep 18, 1918102Win63–7–3 Eddie O'KeefeKO5 (6)Aug 30, 1918101Win62–7–3 Harry PierceNWS6Aug 24, 1918100Win62–7–3 Mickey DonleyTKO5 (8)Aug 12, 191899Win61–7–3 Larry HansenTKO5 (10)Jun 29, 191898Loss60–7–3 Johnny RayNWS10Jun 19, 191897Loss60–7–3 Frankie CallahanNWS6May 6, 191896Win60–7–3 Jack RussoKO1 (15)Apr 29, 191895Win59–7–3 Johnny RayNWS6Apr 1, 191894Win59–7–3 Charley ThomasPTS10Mar 20, 191893Loss58–7–3 Johnny DundeeNWS6Mar 9, 191892Win58–7–3 Eddie WallacePTS10Feb 18, 191891Win57–7–3 Packy HommeyTKO9 (15)Jan 30, 191890Loss56–7–3 Johnny DundeeNWS6Nov 19, 191789Loss56–7–3 Rocky KansasNWS6Sep 10, 191788Loss56–7–3 Rocky KansasNWS10Jul 23, 191787Draw56–7–3 Johnny DundeeNWS6Jul 12, 191786Win56–7–3 Otto YacknowKO1 (6)May 19, 191785Win55–7–3 Philadelphia Pal MooreKO2 (15)May 14, 191784Win54–7–3 Young Terry McGovernKO4 (6)May 12, 191783Win53–7–3 Larry HansenTKO4 (15)Mar 19, 191782Win52–7–3 Johnny MayoNWS6Mar 10, 191781Loss52–7–3 Frankie BrittDQ3 (12)Feb 27, 191780Win52–6–3 Willie JonesKO5 (15)Feb 12, 191779Win51–6–3 Al DelmontPTS15Jan 29, 191778Win50–6–3 Kid JulianKO4 (15)Jan 15, 191777Win49–6–3 Al BrittKO1 (15)Dec 18, 191676Loss48–6–3 Johnny KilbaneKO3 (15), Sep 4, 191675Win48–5–3 Packy HommeyNWS10Aug 3, 191674Win48–5–3 Packy HommeyPTS12Jun 9, 191673Win47–5–3 Patsy HaleyNWS10Mar 13, 191672Win47–5–3 Cal DelaneyNWS10Feb 17, 191671Win47–5–3 Mickey DonleyTKO4 (6)Feb 12, 191670Win46–5–3 Frankie NelsonTKO3 (10)Jan 27, 191669Win45–5–3 Bobby ReynoldsKO2 (10)Nov 24, 191568Win44–5–3 Jack WhiteTKO1 (10)Oct 26, 191567Win43–5–3 Eddie MorganNWS6Oct 4, 191566Draw43–5–3 Eddie MorganPTS10Sep 15, 191565Win43–5–2 Eddie O'KeefeNWS6Apr 26, 191564Draw43–5–2 Matt BrockNWS12Mar 22, 191563Win43–5–2 Jimmy FoxTKO5 (6)Mar 17, 191562Win42–5–2 Cal DelaneyNWS10Mar 5, 191561Win42–5–2 Packy HommeyPTS10Feb 3, 191560Win41–5–2 Packy HommeyNWS6Jan 11, 191559Win41–5–2 Benny KaufmanKO6 (10)Dec 4, 191458Win40–5–2 Joe HarangTKO6 (10)Nov 26, 191457Win39–5–2 Cal DelaneyNWS12Oct 27, 191456Win39–5–2 Patsy KlineNWS6Oct 3, 191455Win39–5–2 KO MarsRTD4 (10)Sep 3, 191454Win38–5–2 Calvin WilliamsKO4 (12)Aug 13, 191453Win37–5–2 Young Abe AttellTKO1 (10)Jul 11, 191452Draw36–5–2 Patsy ClinePTS10Jun 24, 191451Win36–5–1 Tommy HouckTKO6 (15)May 22, 191450Loss35–5–1 Joe DundeeNWS6Apr 20, 191449Win35–5–1 Joe CosterKO4 (15)Apr 13, 191448Win34–5–1 Frankie ConwayNWS6Mar 9, 191447Win34–5–1 Jack MartinKO1 (15)Mar 3, 191446Win33–5–1 Jimmy TolandTKO4 (15)Feb 10, 191445Win32–5–1 Jimmy TolandTKO2 (15)Jan 26, 191444Win31–5–1 Eddie O'KeefeKO5 (6)Dec 25, 191343Win30–5–1 Tommy BuckNWS6Nov 27, 191342Win30–5–1 Young BrittKO1 (15), Nov 19, 191341Win29–5–1 Happy DavisPTS15Oct 24, 191340Win28–5–1 Ty CobbDQ6 (15)Jul 29, 191339Loss27–5–1 Abe AttellPTS15Apr 28, 191338Win27–4–1 Young BrittKO2 (15)Apr 8, 191337Win26–4–1 Kid MurphyNWS10Jan 11, 191336Win26–4–1 Reddy MooreTKO6 (10)Jan 9, 191335Win25–4–1 Lew SiegelKO4 (6)Jan 4, 191334Win24–4–1 Babe DavisTKO2 (10)Dec 14, 191233Win23–4–1 Oscar WilliamsNWS6Dec 11, 191232Loss23–4–1 Charley CrossDQ1 (6)Dec 11, 191231Win23–3–1 Kid HermanNWS10Nov 6, 191230Win23–3–1 Danny RidgePTS15Oct 31, 191229Win22–3–1 Tommy HopkinsKO7 (10)Oct 12, 191228Loss21–3–1 Tommy HouckTKO11 (15)Oct 1, 191227Loss21–2–1 Mike ClancyKO6 (10)Aug 9, 191226Loss21–1–1 George KirkwoodNWS10Aug 5, 191225Win21–1–1 Eddie GillespieKO6 (10)Jul 13, 191224Win20–1–1 Al DelmontPTS15Jul 1, 191223Win19–1–1 Battling KennedyKO4 (15)May 6, 191222Win18–1–1 Phil McGovernTKO9 (15)Mar 19, 191221Win17–1–1 Johnny DalyPTS6Mar 6, 191220Win16–1–1 Charley GoldmanPTS15Feb 2, 191219Win15–1–1 Johnny EggersKO3 (10)Jan 6, 191218Win14–1–1 Kid BlackNWS10Dec 23, 191117Loss14–1–1 Johnny McLeanNWS10Dec 14, 191116Win14–1–1 Billy HermanPTS6Nov 24, 191115Win13–1–1 Young HouckKO3 (6)Nov 10, 191114Win12–1–1 Eddie DoyleKO3 (15)Oct 18, 191113Win11–1–1 Young McCueKO3 (15)Aug 28, 191112Win10–1–1 Benny ReillyTKO4 (15)Aug 14, 191111Win9–1–1 Kid WilliamsPTS20Jul 10, 191110Loss8–1–1 Young BrittKO6 (15)Apr 12, 19119Win8–0–1 Kid EganPTS15Feb 10, 19118Win7–0–1 Tommy BuckPTS15Jan 13, 19117Win6–0–1 Kid WilliamsKO6 (15)Jan 2, 19116Draw5–0–1 Shep FarrenPTS3Dec 9, 19105Win4–0–1 Young McCueKO3 (6)Dec 9, 19104Win4–0 Young Jack O'BrienTKO2 (6)Nov 1, 19103Win3–0 Young KellyKO1 (?)Oct 20, 19102Win2–0 Young Battling KellyPTS6Oct 11, 19101Win1–0 Young Kid WilliamsKO1 (6)Oct 4, 1910

Unofficial record

Record with the inclusion of newspaper decisions in the win/loss/draw column.