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Welterweight boxing · most active 2000s

Luis Collazo

72″ reach · +4.34% reach advantage · 72nd percentile

Boxing record

39–9

Luis Collazo has a reach of 72″ against a height of 69″ — a reach advantage of +4.34%, above average for welterweight boxing and the 72nd percentile of the 130 compared here.

200020102020UNFILEDwin v Sean Thomassen, 2000, kowin v Rohan Nanton, 2000win v Derek Hudson, 2000win v Darnell Green, 2000, kowin v Jose Maldonado, 2000win v Luis Alberto Santiago, 2001, decisionwin v Kareem Braithwaite, 2001, kowin v Philip Thrasher, 2001, decisionwin v Gary Grant, 2001, kowin v Matt Hill, 2001, decisionwin v Terry Dominic, 2001, decisionwin v George Best, 2001, kowin v Sylvester Clark, 2001win v Jose Avila, 2002, decisionwin v Vincent Harris, 2002, decisionwin v Gary Grant, 2002, decisionwin v George Ray, 2002, koloss v Edwin Cassiani, 2002, kowin v Orlando Milian, 2002, kowin v Earl Allen, 2003, kowin v Marcos Primera, 2003, decisionwin v Felix Flores, 2004, decisionwin v Thomas Davis, 2004, decisionwin v Miguel Ángel González, 2005win v José Antonio Rivera, 2005win v Richard Heath, 2005, kowin v Kevin Carter, 2005, kowin v Artur Atadzhanov, 2006, koloss v Ricky Hatton, 2006, decisionloss v Shane Mosley, 2007, decisionwin v Russell Jordan, 2008, kowin v Edvan Dos Santos Barros, 2008, decisionwin v David Gogichaishvili, 2009, koloss v Andre Berto, 2009, decisionloss v Freddy Hernández, 2011, decisionwin v Franklin Gonzalez, 2011, kowin v Steve Upsher Chambers, 2012, decisionwin v Alan Sanchez, 2013, decisionwin v Miguel Callist, 2013, koloss v Amir Khan, 2014, decisionwin v Victor Ortiz, 2014loss v Keith Thurman, 2015, kowin v Chris Degollado, 2015, kowin v Sammy Vasquez Jr., 2017, kowin v Bryant Perrella, 2018, decisionloss v Kudratillo Abdukakhorov, 2019win v Samuel Vargas, 2019, decisionresult not stated v Eimantas Stanionis, 2021loss v Angel Ruiz Astorga, 2023, koresult not stated v Opponent, no date on record
WON ABOVE·LOST BELOW BAR = STOPPAGE·BROKEN BAR = SUBMISSION·TICK = DECISION 2000–2023 · 1 UNDATED

SOURCE·Luis Collazo — English Wikipedia (CC BY-SA 4.0)·derived figures computed here·REVIEWED 2026-07-07

How this record is compiled

  1. Measurements come from the fighter's English Wikipedia infobox; the bout list is parsed from the results table on the same article, read on 2026-07-07. Boxing tables are read by header name and MMA records by the fixed column order of the MMA record template — two different parsers, because reading MMA rows as a boxing table returns a fighter's boxing record in place of their real one.
  2. A bout enters the ledger with whatever fields the source states: result, opponent, method, round, year. Any field the source leaves empty stays empty here. A date that cannot be established is left blank rather than inferred, and the bout is still counted.
  3. A no contest is counted and printed as a no contest. It is never folded into the wins, the losses or the draws, and it never disappears to make a total balance.
  4. Where the article's infobox total disagrees with its own results table, both figures are published and each is labelled with where it came from. Nothing is averaged and nothing is reconciled against a second database.
  5. Percentiles rank this fighter among the 130 welterweight boxing fighters in the dataset — the most specific group of at least 30 that this fighter belongs to.
reach advantage = (reach − height) ÷ height × 100

Sources, exclusions and known limits →

Bout record

Every bout the article's own results table lists, in order. A dash is a field the source leaves empty — it is not a zero and it is not a guess.

Bout-by-bout recordAUG 2026
YearResultOpponentMethodRd
2023 L Angel Ruiz Astorga KO/TKO6
2021 ? Eimantas Stanionis —4
2019 L Kudratillo Abdukakhorov —10
2019 W Samuel Vargas Decision10
2018 W Bryant Perrella Decision10
2017 W Sammy Vasquez Jr. KO/TKO6
2015 L Keith Thurman KO/TKO7
2015 W Chris Degollado KO/TKO2
2014 L Amir Khan Decision12
2014 W Victor Ortiz —2
2013 W Alan Sanchez Decision10
2013 W Miguel Callist KO/TKO5
2012 W Steve Upsher Chambers Decision8
2011 L Freddy Hernández Decision10
2011 W Franklin Gonzalez KO/TKO3
2009 W David Gogichaishvili KO/TKO6
2009 L Andre Berto Decision12
2008 W Russell Jordan KO/TKO8
2008 W Edvan Dos Santos Barros Decision10
2007 L Shane Mosley Decision12
2006 W Artur Atadzhanov KO/TKO6
2006 L Ricky Hatton Decision12
2005 W Miguel Ángel González —7
2005 W José Antonio Rivera —12
2005 W Richard Heath KO/TKO1
2005 W Kevin Carter KO/TKO6
2004 W Felix Flores Decision10
2004 W Thomas Davis Decision6
2003 W Earl Allen KO/TKO4
2003 W Marcos Primera Decision8
2002 W Jose Avila Decision6
2002 W Vincent Harris Decision6
2002 W Gary Grant Decision4
2002 W George Ray KO/TKO2
2002 L Edwin Cassiani KO/TKO3
2002 W Orlando Milian KO/TKO4
2001 W Luis Alberto Santiago Decision8
2001 W Kareem Braithwaite KO/TKO1
2001 W Philip Thrasher Decision6
2001 W Gary Grant KO/TKO3
2001 W Matt Hill Decision6
2001 W Terry Dominic Decision4
2001 W George Best KO/TKO2
2001 W Sylvester Clark —4
2000 W Sean Thomassen KO/TKO2
2000 W Rohan Nanton —6
2000 W Derek Hudson —3
2000 W Darnell Green KO/TKO6
2000 W Jose Maldonado —1
undated ? Opponent ——

12 of these opponents have their own page here.

SOURCE·Luis Collazo — English Wikipedia (CC BY-SA 4.0)·derived figures computed here·REVIEWED 2026-07-07

Reach in context

Reach advantage

+4.34%

72″ reach on a 69″ frame

Compared against 130 welterweight boxing fighters. Median 2.83%.

-2.9%welterweight boxing reach advantage9.4%
Measurements
Reach72″ (182.9 cm)76th pct
Height69″ (175.3 cm)62nd pct
StanceSouthpaw
DivisionWelterweight Boxing
Most active decade2000s — 34 of 49 dated bouts
CountryUnited States

Record

Boxing record

39–9

49 bouts on record

Finish rate

51%

of wins ended inside the distance — welterweight boxing median 54%, 46th percentile

By knockout: 20 (51%)By decision: 19 (49%)
  • By knockout 51%
  • By decision 49%

The career, bout by bout

50 recorded bouts from 2000 to 2023. Every incumbent shows this as a table you have to read; here it is as a shape you can see.

2000 2010 2020 win vs Sean Thomassen (2000)win vs Rohan Nanton (2000)win vs Derek Hudson (2000)win vs Darnell Green (2000)win vs Jose Maldonado (2000)win vs Luis Alberto Santiago (2001)win vs Kareem Braithwaite (2001)win vs Philip Thrasher (2001)win vs Gary Grant (2001)win vs Matt Hill (2001)win vs Terry Dominic (2001)win vs George Best (2001)win vs Sylvester Clark (2001)win vs Jose Avila (2002)win vs Vincent Harris (2002)win vs Gary Grant (2002)win vs George Ray (2002)loss vs Edwin Cassiani (2002)win vs Orlando Milian (2002)win vs Earl Allen (2003)win vs Marcos Primera (2003)win vs Felix Flores (2004)win vs Thomas Davis (2004)win vs Miguel Ángel González (2005)win vs José Antonio Rivera (2005)win vs Richard Heath (2005)win vs Kevin Carter (2005)win vs Artur Atadzhanov (2006)loss vs Ricky Hatton (2006)loss vs Shane Mosley (2007)win vs Russell Jordan (2008)win vs Edvan Dos Santos Barros (2008)win vs David Gogichaishvili (2009)loss vs Andre Berto (2009)loss vs Freddy Hernández (2011)win vs Franklin Gonzalez (2011)win vs Steve Upsher Chambers (2012)win vs Alan Sanchez (2013)win vs Miguel Callist (2013)loss vs Amir Khan (2014)win vs Victor Ortiz (2014)loss vs Keith Thurman (2015)win vs Chris Degollado (2015)win vs Sammy Vasquez Jr. (2017)win vs Bryant Perrella (2018)loss vs Kudratillo Abdukakhorov (2019)win vs Samuel Vargas (2019)? vs Eimantas Stanionis (2021)loss vs Angel Ruiz Astorga (2023)
winlossdraw / NC2000–2023

Career span

24y

2000–2023

Longest unbeaten run

17

without a loss — draws do not break it

Busiest year

2001

8 bouts

Recorded bouts

50

49 with a date

Standing questions

What this record does and does not say

What is Luis Collazo's record?
39–9 in boxing. That is the aggregate stated in the English Wikipedia infobox; the results table on the same article lists 50 bouts individually.
How many of Luis Collazo's bouts have no date?
1 of 50. The source lists them without a date this site can read, so they are printed with no year, sorted last, and drawn past the double rule in the record line rather than placed in the chronology. No year has been inferred for any of them.
Does a no contest change a record here?
No. A no contest is not a win, a loss or a draw, and it is never folded into one. It is counted and printed separately, so a 20–0 record with two no contests is shown as exactly that rather than as 22–0 or as 20–0 with the no contests dropped. The same applies to a bout overturned after the fact where the source records the change.
What happens when sources disagree about a fight?
This site publishes one source — the fighter's English Wikipedia article, read on the date printed under every table — and it does not silently reconcile that against anyone else's database. Where the article's own infobox total and its own results table disagree, both are shown and the page says which one each figure came from. Nothing is averaged, and no field is filled in from a second source to make a total balance.

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Published by

Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.