Tiffany van Soest

He immigrated to the Netherlands in the early 1950s and met his ethnically Dutch wife in the Hague, after which they both moved to the United States.

Van Soest is of maternal Austrian and Polish descent.

The first sports she became involved in were soccer at the age of five and later Shōrin-ryū karate at eight.

She earned the rank of second degree black belt under Joey Pagliuso at the United States Karate Organization at seventeen, but was unable to compete until she was eighteen because her parents wouldn't let her.

When she did start competitive karate, she took multiple titles at state, national and world levels.

Van Soest stopped practicing martial arts for a short time to attend California State University San Marcos where she earned a bachelor's degree in kinesiology, and played on the soccer team for two seasons.

However, van Soest was soon drawn back to martial arts and found Muay Thai while living in San Diego, California.

Tiffany Lynn van Soest (born March 20, 1989) is a retired American Muay Thai kickboxer who competed in the bantamweight division.

She is the former two-time Glory Super Bantamweight Champion and a two-weight Lion Fight champion.

Tiffany Van Soest began fighting in amateur Muay Thai in 2009 and had her first title fight on August 14, 2010, at the San Mateo Event Center in San Mateo, California, challenging IKF Women's Amateur World Muay Thai Bantamweight (55.45 kg/122.2 lb) Champion Jenna Castillo for her belt.

After what was called the "Fight of the Night", van Soest lost the challenge to Castillo by unanimous decision on scores of 50–44, 49–45 and 49–45.

She soon captured the United States Muay Thai Association Women's Amateur California Featherweight Championship and then defeated Gabriela Lemus by technical knockout (TKO) in the second round of their contest in Pala, California on October 2, 2010, to claim the International Amateur Muay Thai Federation Women's United States Featherweight title.

Her original opponent was to be Tandi Schaffer, but Schafer injured her hand in a previous bout and was forced to withdraw.

Facing her first foreign opponent, van Soest fought to a draw with China's Cong Wang in Las Vegas, Nevada, on November 16, 2010.

Originally a Shōrin-ryū karate practitioner, van Soest began Muay Thai at the age of eighteen and was both a state and national titlist as an amateur before turning professional in 2011.

Prior to her switch to kickboxing, van Soest was the two-time Lion Fight Women's Featherweight and one-time Lion Fight Women's Super Bantamweight champion.

As a professional kickboxer, van Soest twice captured the Glory Women's Super Bantamweight championship, amassing five defenses across two reigns, only suffering losses to fellow pound-for-pound ranked Anissa Meksen and Denise Kielholtz.

She debuted as an amateur in mixed martial arts (MMA) on February 26, 2011, at the Road to WCK event in Pala where she TKO'd Kate McGray with a combination of a left high kick and standing-to-ground punches early in the second round.

She had her first international bout in her second appearance in amateur MMA as she lost to Jin Tang via submission due to a triangle choke inside the first round in Nanning, China, on June 18, 2011.

The fight is notable for being the first female MMA match to be held in mainland China.

After amassing a record of 10–1–1 as an amateur nak muay, Van Soest turned professional on October 22, 2011, and was initially set to rematch Cong Wang in her pro debut in Las Vegas.

However, Wang was unable to compete and replaced by four-time world champion Lena Ovchynnikova.

Van Soest won by TKO after Ovchynnikova retired in her corner with a broken hand at the end of round two.

The pair were scheduled to rematch on July 21, 2012, in Croatia, but it never came to fruition.

In her sophomore appearance as a pro, van Soest defeated Vivian Leung by unanimous decision at Lion Fight: Battle in the Desert 5 in Las Vegas on February 25, 2012.

She then followed this up with another unanimous points victory over Heidi Otterbein at Lion Fight 6 on May 12, 2012.

In just her fourth outing as a pro, she was given the chance to fight for the vacant International Karate and Kickboxing Council Women's World Super Bantamweight Muay Thai Championship on August 18, 2012, in Pala.

Facing Jemyma Betrian after her original foe Hilary Mack pulled out, van Soest and her Dutch-based Curaçaoan opponent put on a back-and-forth "Fight of the Night" display.

Van Soest scored a knockdown with a spinning back fist in the second round, and Betrian was docked a point in the third for rabbit punching.

Despite this, two judges scored the bout a draw and the other in the favour of van Soest, rendering the match a majority draw.

On October 13, 2012, van Soest took the WBC Muaythai Women's International Super Bantamweight (55.338 kg/122 lb) title from the previously undefeated Jeri Sitzes at Lion Fight 7 in Las Vegas.

After a slow first two rounds, she began taking the lead in the third, scoring with low kicks and punches to take the unanimous decision.

Having already fought three times for the organization, she then signed a multi-fight contract with Lion Fight Promotions the following month.

In the co-main event of Lion Fight 8, the promotion's first event televised nationally, she faced Alexis Rufus on January 25, 2013.

It was a closely contested affair up until round four when van Soest rocked Rufus with a high kick before dropping her for good with a right hand.

Van Soest was again in the co-main event at Lion Fight 9 on March 15, 2013, as she took a wide unanimous decision over Natalie Yip, who was debuting as a professional.

Combat Press ranked her as a pound-for-pound talent between November 2016 and September 2023, when she retired from professional competition.

In 2019, Combat Press voted her the Female Fighter of the Year.

Tiffany van Soest was born in Torrance, California, and raised in Riverside, California.

Her paternal grandfather was a Dutch-Indonesian born in Semarang, in the former Dutch East Indies.