Between November 2016 and May 2018 she was ranked in the top ten pound for pound women in the world by Combat Press.[5][6] As of April 2020, she is the #2 Super Bantamweight in the world by WBC Muaythai.
Career
Betrian made had her professional fight in 2005 against Marouska Pruynboom. She lost a unanimous decision.
In 2007, she scored a TKO win over Suheyla Ozturk to win the MON Women's Dutch Flyweight title.
In 2010, Betrian defeated Christine Toledo to win WBC Muaythai Women's International Super Flyweight title.
During The Battle of Rotterdam Rebels 7, she defeated Linda Ooms to win the WFCA K-1 rules Women's European Bantamweight title.[7]
Betrian challenged Tiffany van Soest for the IKKC Muaythai Women's World Super Bantamweight title. She failed to win the title, as the fight ended in a draw.[8]
She defended the WBC Muaythai Women's World Bantamweight title, with a 30 second KO of Marcela Soto.[9]
In her next fight, she won the IMTU Women's European Bantamweight title with a TKO win over Katia Semail, as Katia retired after the second round.[10]
She defeated Thais Souza by third-round TKO at WCK Muay Thai: Matter of Pride in Temecula, California on February 15, 2014, to win the WKC Muaythai Women's World Bantamweight title.[11][12]
During Kunlun Fight 3, she won a unanimous decision against E Meidie to win the WLF 52kg Women's World Championship title.[13]
She knocked out Christi Brereton in round two at WCK Muay Thai: International Showdown in Temecula, California on June 7, 2014, to retain the WBC Muaythai Women's World Bantamweight title.[14]
Titles
Professional
2014 WLF 52 kg Women's World Championship
2014 WKC Muaythai Women's World Bantamweight title
2013 IMTU Women's European Bantamweight Championship
2012 WBC Muaythai Women's World Bantamweight Championship (2 title defenses)
2010 WBC Muaythai Women's International Super Flyweight Championship
2010 WFCA K-1 rules Women's European Bantamweight Championship
2007 MON Women's Dutch Flyweight Championship
Amateur
2007 IFMA World Muaythai Championships in Bangkok, Thailand -54 kg