science

Kron Gracie

Kron Gracie is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Kron Gracie rather than just read about it. In short: Kron Stavik Gracie (born July 11, 1988) is a Brazilian and American mixed martial artist, submission grappler, and instructor. He previously competed in the Featherweight division of the Ultimate Fighting Championship.

Key takeaways

Kron Gracie belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Kron Gracie to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Kron Gracie from memory before moving on to harder problems.

Reference excerpt

Kron Stavik Gracie (born July 11, 1988) is a Brazilian and American mixed martial artist, submission grappler, and instructor. He previously competed in the Featherweight division of the Ultimate Fighting Championship. A member of the Gracie family of Brazilian jiu-jitsu, he is the son of 9th deg. BJJ red belt Rickson Gracie and a grandson of BJJ co-founder Hélio Gracie. Training jiu-jitsu from a very young age Gracie became a two-time IBJJF World champion and four-time Pan-American champion before receiving his black belt at the age of 19. By 2008 Gracie held a record of 51 consecutive matches won by submission at high level tournaments. After medalling at the Pan-American championship, Gracie became European champion in 2009, World championship silver medallist in 2011 and in 2013 ADCC Submission Fighting World Champion.

Early life Gracie was born in Rio de Janeiro, Brazil the youngest son of Brazilian Jiu-Jitsu (BJJ) master Rickson Gracie but lived most of his life in Los Angeles after his father moved to California in 1989. He began his BJJ training under his father as a child, winning his first competition as a yellow belt at the age of ten. Kron is the youngest of four children to Rickson Gracie and grandson of the late Helio Gracie. He has two older sisters Kauan and Kaulin, his older brother Rockson died in 2000.

Brazilian jiu-jitsu career

2005–2007: First world and Pan Am championships titles At the age of 16, competing as a blue belt in the Adult lightweight division, Gracie won the 2004 IBJJF American National Jiu-Jitsu Championship. After receiving his purple belt Gracie won the 2005 Pan Championship then in 2006, Gracie won both the IBJJF World Championship and the CBJJO World Jiu-Jitsu Cup. Competing in grappling Gracie won the 2006 NAGA Championship in the Adult Lightweight Division. The following year as a brown belt, he became world champion for the second time and Pan American champion for the fourth time winning double gold, in his division and, after defeating Tom DeBlass, in absolute (aka open class). At that point Gracie held a record 51-match submission streak.

2008–2010: Black belt, European champion, ADCC medallist In 2008, at the age of 19, Gracie was promoted to black belt by his father a week before the World Championship, however Gracie was submitted by Sergio Moraes in the first match of the middleweight division. In 2009 Gracie won the European Championship after defeating Yan Cabral in the final, a few days after the death of his grandfather, Grandmaster Helio Gracie, he then won silver at the 2009 Pan Championship in the middleweight division after losing by points in the final against Lucas Leite. At the 2009 Abu Dhabi Combat Club (ADCC) grappling competition in Barcelona, the most prestigious grappling tournament in the world, Gracie lost the 77 kilograms (170 lb) Quarter-final after being submitted via mounted guillotine choke by Marcelo Garcia. Two years later Gracie won bronze at 2011 ADCC World after losing again to Marcelo Garcia in a close match after Garcia won by points. Gracie became known as "Ice Cream Kron" due to his calm demeanour when fighting.

2011–2013: Superfights, ADCC World champion Gracie won silver at the 2011 World Jiu-Jitsu Championship, in the lightweight division, submitting Leandro Lo then losing 9-2 to Gilbert "Durinho" Burns in the finals. At 2012 Pan Am, competing under Rickson Gracie BJJ team, Gracie won bronze in middleweight and bronze in absolute after losing in the final against ultra heavyweight Marcus "Buchecha" Almeida; that same year he became World Jiu-Jitsu Expo Superfight champion after defeating Victor Estima in a tight match won by advantage at the World Jiu Jitsu Expo in Long Beach, California. In October 2012 Gracie participated in a Gi Superfight at Metamoris 1 in San Diego, submitting Otávio Souza at seventeen minutes of Round 1 by armbar. In June 2013 Gracie participated in a No-gi Superfight at Metamoris 2 in Los Angeles, defeating Japanese MMA star Shinya Aoki by guillotine choke in seven minutes. In October 2013 Gracie won his division of the ADCC World Championship in Beijing submitting all his opponents including Garry Tonon in the Quarter-final, JT Torres in the Semi-final and Otávio Souza submitted by guillotine choke in the Final.

Mixed martial arts career

2014–2016: Japanese debut, Rizin Fighting On February 24, 2014, Gracie announced his intention to pursue an MMA career. Gracie chose to cut down weight to compete at 155 pounds (70 kg) instead of his usual 170–180 pounds (77–82 kg) jiu-jitsu and grappling weight class. He started training for his first MMA bout with the California based Scrap Pack, a group of fighters comprising Cesar Gracie Jiu-Jitsu students Gilbert Melendez, Nick and Nate Diaz. Gracie made his mixed martial arts debut on December 23, 2014, facing fellow South Korean wrestler Hyung Soo-Kim at Real Fighting Championship: Real 1 at a catch weight of 161 pounds (73 kg). Gracie won the fight via armbar, sixty-five seconds into the first round. Gracie fought on December 31, 2015 at Rizin Fighting Federation World Tournament. He faced Asen Yamamoto and won the fight by submission via triangle choke in the first round. Gracie fought Hideo Tokoro on September 25, 2016. He won via rear-naked choke in the first round. Gracie faced MMA veteran Tatsuya Kawajiri at the Rizin Fighting Federation Grand Prix: Final Round event on December 31, 2016. He won via rear-naked choke in the second round. This improved his professional MMA record to 4-0.

Ultimate Fighting Championship

2018–2019 In November 2018, Gracie was signed by the UFC. In his debut fight for the promotion, Gracie faced Alex Caceres on February 17, 2019 at UFC on ESPN 1. He won the fight via submission due to a rear-naked choke in the first round. This fight earned him his first Performance of the Night award. Gracie faced Cub Swanson on October 12, 2019 at UFC on ESPN+ 19. He lost the fight via unanimous decision. This fight earned him the Fight of the Night bonus award. Many people were confused at Gracie's decision to strike with Swanson instead of taking the fight to the ground where he was predicted to have the advantage. In the years since, several members of the Gracie family have spoken about his loss and criticized his decision to avoid grappling, including his father Rickson and uncle Relson Gracie.

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Kron Gracie

Start with the simplest possible case. Write down what Kron Gracie claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Kron Gracie before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Kron Gracie ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Kron Gracie

In research: Kron Gracie appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Kron Gracie in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Kron Gracie is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1988 births, 21st-century Brazilian sportsmen, American people of Brazilian descent, so understanding it makes those chapters shorter.
In everyday life: Look for Kron Gracie outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Kron Gracie in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Kron Gracie means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Kron Gracie out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Kron Gracie in simple terms?

Why does Kron Gracie matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Kron Gracie?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Kron Gracie.