Eaktwan BTU Ruaviking

Komgrich Nantapech (คมกฤช นันทเพชร), also better known as Eaktwan BTU Ruawaiking (เอกตะวัน บีทียูเรือไวกิ้ง) or Ektawan Mor Krungthep Thonburi (เอกตะวัน ม.กรุงเทพธนบุรี; born July 24, 1989), is a Thai professional boxer who challenged for the IBF flyweight title in 2017.

Career
Eaktawan was a Muay Thai fighter under the name Tawanrung Ueasamphan at first. He moved to boxing full time in 2013. A former Thai Flyweight champion and the current IBF Pan-Pacific flyweight champion, on April 29, 2017, Nantapech was the #4 IBF Flyweight, he challenged the #3 Donnie Nietes for the vacant IBF World Title vacated by then Champion Johnriel Casimero.

His ring name "Eaktawan" (lit. Solitary Sun) comes from his manager Ekarat and his supporter Ekachai Leuang Sa-Ard, he studyied at the Faculty of Political Science, Bangkokthonburi University.

Professional boxing record
{|class="wikitable" style="text-align:center" !No. !Result !Record !Opponent !Type !Round, time !Date !Location !Notes
 * - align=center
 * 46||Win||35–11||align=left| Jayr Raquinel
 * TKO
 * 2 (6), 1:13
 * 2024-05-30
 * align=left|🇹🇭 Spaceplus Bangkok RCA, Bangkok, Thailand
 * align=left|
 * - align=center
 * 45||Win||35–10||align=left|🇹🇭 Wachirawit Sanpakorn
 * TKO
 * 3 (6), 0:43
 * 2024-02-10
 * align=left|🇹🇭 Akethawee Muaythai Gym, Nakhon Pathom, Thailand
 * align=left|
 * - align=center
 * 44||Win||34–10||align=left|🇹🇭 Naruenat Chaitiap
 * TKO
 * 3 (6), 0:19
 * 2024-01-29
 * align=left|🇹🇭 Sasakul Gym, Lam Luk Ka, Thailand
 * align=left|
 * - align=center
 * 43||Win||33–10||align=left|🇹🇭 Naruenat Chaitiap
 * UD
 * 6
 * 2023-12-17
 * align=left|🇹🇭 Khongsittha Muaythai, Bangkok, Thailand
 * align=left|
 * - align=center
 * 42||Loss||32–10||align=left|🇹🇭 Anuchai Donsua
 * TKO
 * 4 (10), 2:26
 * 2023-11-22
 * align=left|🇹🇭 Rangsit International Stadium, Pathum Thani, Thailand
 * align=left|For ABF super- bantamweight title
 * - align=center
 * 41||Loss||32–9||align=left| Herlan Gomez
 * KO
 * 1 (10), 2:48
 * 2023-08-31
 * align=left|🇹🇭 Spaceplus Bangkok RCA, Bangkok, Thailand
 * align=left|For vacant WBC Asia Silver bantamweight title
 * - align=center
 * 40||Win||32–8||align=left|🇹🇭 Watcharaphon Saraphai
 * TKO
 * 6 (6), 1:07
 * 2023-07-27
 * align=left|🇹🇭 Spaceplus Bangkok RCA, Bangkok, Thailand
 * align=left|
 * - align=center
 * 39||Loss||31–8||align=left|🇹🇭 Thananchai Charunphak
 * UD
 * 8
 * 2023-06-24
 * align=left|🇹🇭 Suan Lum Night Bazaar Ratchadaphisek, Bangkok, Thailand
 * align=left|
 * - align=center
 * 38||Loss||31–7||align=left|🇹🇭 Srisaket Sor Rungvisai
 * UD
 * 8
 * 2023-05-27
 * align=left|🇹🇭 Thupatemi Stadium, Pathum Thani, Thailand
 * align=left|
 * - align=center
 * 37||Loss||31–6||align=left| Carl Jammes Martin
 * KO
 * 2 (10)
 * 2022-12-17
 * align=left|CCDC Gym, Barangay Poblacion, La Trinidad, Philippines
 * align=left|For vacant IBF Pan Pacific super bantamweight title
 * - align=center
 * 36||Win||31–5||align=left|🇹🇭 Petchsaifah Chainat
 * TKO
 * 2 (8)
 * 2022-08-19
 * align=left|🇹🇭 Lake Event, Samut Prakan, Thailand
 * align=left|
 * - align=center
 * 35||Win||30–5||align=left|🇹🇭 Watcharaphon Chaisai
 * TKO
 * 2 (8)
 * 2021-03-19
 * align=left|🇹🇭 Kiatkeerin Fitness and Martial Art, Samut Prakan, Thailand
 * align=left|
 * - align=center
 * 34||Win||29–5||align=left|🇹🇭 Narit Nankaew
 * RTD
 * 2 (6)
 * 2020-12-09
 * align=left|🇹🇭 Kiatkeerin Fitness and Martial Art, Samut Prakan, Thailand
 * align=left|
 * - align=center
 * 33||Win||28–5||align=left|🇹🇭 Chiraphon Patitangkho
 * RTD
 * 3 (6)
 * 2020-09-03
 * align=left|🇹🇭 Kiatkeerin Fitness and Martial Art, Samut Prakan, Thailand
 * align=left|
 * - align=center
 * 32||Win||27–5||align=left|🇹🇭 Patiyut Seerachrakanon
 * TKO
 * 3 (6)
 * 2019-12-19
 * align=left|🇹🇭 Kiatkeerin Fitness and Martial Art, Samut Prakan, Thailand
 * align=left|
 * - align=center
 * 31||Win||26–5||align=left|🇹🇭 Wisitsak Saiwaew
 * TKO
 * 2 (6)
 * 2019-11-15
 * align=left|🇹🇭 Ratirat Villege, Bangbuathong, Nonthaburi, Thailand
 * align=left|
 * - align=center
 * 30||Win||25–5||align=left| Rollen Del Castillo
 * TKO
 * 2 (6)
 * 2018-12-14
 * align=left|🇹🇭 Maejo University, Chiang Mai, Thailand
 * align=left|
 * - align=center
 * 29||Win||24–5||align=left| Crison Omayao
 * UD
 * 12
 * 2018-04-25
 * align=left|🇹🇭 Pone Kingpetch Memorial Park, Hua Hin
 * align=left|Retained IBF Pan Pacific flyweight title
 * - align=center
 * 28||Win||23–5||align=left|🇯🇵 Naoki Mochizuki
 * UD
 * 12
 * 2018-02-07
 * align=left|🇹🇭 Suamlum Night Bazaar, Ratchadaphisek, Bangkok, Thailand
 * align=left|Won vacant IBF Pan Pacific flyweight title
 * - align=center
 * 27||Loss||22–5||align=left|🇦🇷 Juan Carlos Reveco
 * UD
 * 12
 * 2017-09-08
 * align=left|🇦🇷 Estadio Deportistas Alvearenses, General Alvear, Mendoza, Argentina
 * align=left|
 * - align=center
 * 26||Loss||22–4||align=left| Donnie Nietes
 * UD
 * 12
 * 2017-04-29
 * align=left|Cebu City Waterfront Hotel & Casino, Barangay Lahug, Cebu City, Cebu, Philippines
 * align=left|For vacant IBF flyweight title
 * - align=center
 * 25||Win||22–3||align=left| Jeny Boy Boca
 * KO
 * 6 (12)
 * 2016-09-30
 * align=left|🇹🇭 Bangkok University, Thonburi Campus, Bangkok, Thailand
 * align=left|Retained IBF Asia flyweight title
 * - align=center
 * 24||Win||21–3||align=left| Demsi Manufoe
 * KO
 * 3 (12)
 * 2016-08-12
 * align=left|🇹🇭 Wiang Sa, Surat Thani, Thailand
 * align=left|Retained IBF Asia flyweight title
 * - align=center
 * 23||Win||20–3||align=left| Jayar Diama
 * UD
 * 12
 * 2016-07-08
 * align=left|🇹🇭 Samroiyod Beach, Prachuap Khiri Khan, Thailand
 * align=left|Retained IBF Asia flyweight title
 * - align=center
 * 22||Win||19–3||align=left|🇯🇵 Takayuki Okumoto
 * SD
 * 8
 * 2016-04-03
 * align=left|🇯🇵 EDION Arena Osaka, Osaka, Japan
 * align=left|
 * - align=center
 * 21||Win||18–3||align=left|🇨🇳 Yang Chen
 * TKO
 * 3 (6)
 * 2016-03-26
 * align=left|🇹🇭 J-Night Market, Ladplakao, Bangkok, Thailand
 * align=left|
 * - align=center
 * 20||Win||17–3||align=left| Jomar Fajardo
 * TKO
 * 6 (6)
 * 2015-10-25
 * align=left|🇹🇭 Central Westgate Shopping Center, Bangyai, Nonthaburi, Thailand
 * align=left|
 * - align=center
 * 19||Win||16–3||align=left| Frans Damur Palue
 * UD
 * 6
 * 2015-08-12
 * align=left|🇹🇭 Royal Square, Bangkok, Thailand
 * align=left|
 * - align=center
 * 18||Win||15–3||align=left| Lionel Legada
 * TKO
 * 5 (12)
 * 2015-06-19
 * align=left|🇹🇭 Bangkok University, Thonburi Campus, Bangkok, Thailand
 * align=left|Won vacant IBF Asia flyweight title
 * - align=center
 * 17||Win||14–3||align=left| Ardi Tefa
 * TKO
 * 3 (12)
 * 2015-03-13
 * align=left|🇹🇭 Bangkok University, Thonburi Campus, Bangkok, Thailand
 * align=left|Retained WBA Asia flyweight title
 * - align=center
 * 16||Win||13–3||align=left| Ical Tobida
 * TKO
 * 4 (12)
 * 2014-12-05
 * align=left|🇹🇭 Royal Square, Bangkok, Thailand
 * align=left|Retained WBA Asia flyweight title
 * - align=center
 * 15||Win||12–3||align=left| Edison Berwela
 * TKO
 * 4 (12)
 * 2014-10-03
 * align=left|🇹🇭 Bangkok University, Thonburi Campus, Bangkok, Thailand
 * align=left|Retained WBA Asia flyweight title
 * - align=center
 * 14||Win||11–3||align=left| Gaspar Ampolo
 * KO
 * 3 (6)
 * 2014-09-05
 * align=left|🇹🇭 Pakkret School, Nonthaburi, Thailand
 * align=left|
 * - align=center
 * 13||Win||10–3||align=left| Jemmy Gobel
 * TKO
 * 6 (12)
 * 2014-06-13
 * align=left|🇹🇭 Bangkok University, Thonburi Campus, Bangkok, Thailand
 * align=left|Won vacant WBA Asia flyweight title
 * - align=center
 * 12||Win||9–3||align=left| Renz Llagas
 * KO
 * 3 (6)
 * 2014-02-25
 * align=left|🇹🇭 Bangkok University, Thonburi Campus, Bangkok, Thailand
 * align=left|
 * - align=center
 * 11||Win||8–3||align=left| Jimmy Masangkay
 * UD
 * 6
 * 2013-12-06
 * align=left|🇹🇭 Krungthep Thonburi University, Bangkok, Thailand
 * align=left|
 * - align=center
 * 10||Loss||7–3||align=left| Froilan Saludar
 * UD
 * 10
 * 2013-10-26
 * align=left|Makati Coliseum, Makati City, Metro Manila, Philippines
 * align=left|
 * - align=center
 * 9||Win||7–2||align=left|🇹🇭 Velasak Samsee
 * TKO
 * 2 (10)
 * 2013-10-11
 * align=left|🇹🇭 Kruasawaeng Seafood Restaurant, Bangkhuntien, Bangkok, Thailand
 * align=left|Won vacant Thai flyweight title
 * - align=center
 * 8||Win||6–2||align=left|🇹🇭 Chamuakpetch Kor Kamolwat
 * TKO
 * 2 (6)
 * 2013-09-17
 * align=left|🇹🇭 Bangkok University, Thonburi Campus, Bangkok, Thailand
 * align=left|
 * - align=center
 * 7||Loss||5–2||align=left|🇯🇵 Sho Ishida
 * UD
 * 8
 * 2013-05-08
 * align=left|🇯🇵 Bodymaker Colosseum, Osaka, Osaka, Japan
 * align=left|
 * - align=center
 * 6||Loss||5–1||align=left| Albert Pagara
 * KO
 * 2 (10)
 * 2012-11-15
 * align=left|Maasin City Sports Complex (Maasin City Gym), Maasin City, Southern Leyte, Philippines
 * align=left|
 * - align=center
 * 5||Win||5–0||align=left|🇹🇭 Kong Sithsamart
 * TKO
 * 1 (6)
 * 2012-07-24
 * align=left|🇹🇭 Chiang Rai, Thailand
 * align=left|
 * - align=center
 * 4||Win||4–0||align=left|🇹🇭 Den Sithsaithong
 * UD
 * 6
 * 2012-03-28
 * align=left|🇹🇭 Na-ngua village, Petchaboon, Thailand
 * align=left|
 * - align=center
 * 3||Win||3–0||align=left|🇹🇭 Chartphichit Sor Rathidech
 * UD
 * 6
 * 2011-12-30
 * align=left|🇹🇭 Krungthep Thonburi University, Bangkok, Thailand
 * align=left|
 * - align=center
 * 2||Win||2–0||align=left|🇹🇭 Khaosainoi Or Nanthasrinon
 * UD
 * 6
 * 2011-10-17
 * align=left|🇹🇭 Krungthep Thonburi University, Bangkok, Thailand
 * align=left|
 * - align=center
 * 1||Win||1–0||align=left|🇹🇭 Tepparith Sor Thanmajak
 * KO
 * 1 (6)
 * 2011-08-03
 * align=left|🇹🇭 Rajadamnern Stadium, Bangkok, Thailand
 * align=left|Professional debut.

Muay Thai record

 * - style="background:#fbb"
 * 2023-07-22 || Loss||align=left|🇯🇵 Issei Ishii || Rajadamnern World Series || Bangkok, Thailand || KO (Left hook to the body) || 1 || 2:49


 * - style="text-align:center; background:#fbb;"
 * 2013-07-21 || Loss||align=left|🇯🇵 Mutsuki Ebata || SNKA MAGNUM 32 || Tokyo, Japan || TKO (Punches) || 2 || 1:15


 * - style="background:#fbb"
 * 2013-03-04 || Loss||align=left|🇹🇭 Yadfa K.R.S. Gym || Petchaophraya, Rajadamnern Stadium || Bangkok, Thailand || Decision || 5 || 3:00


 * - style="background:#cfc"
 * 2013-02-01 || Win ||align=left|🇹🇭 Jomyutjiew Wor.Rungtawee || Lumpinee Stadium || Bangkok, Thailand || KO || 3 ||


 * - style="background:#cfc"
 * 2012-12-05 || Win||align=left|🇹🇭 Phetsayam Jitmuangnon. || || Prachuap Khiri Khan province, Thailand || KO || 2 ||


 * - style="background:#fbb"
 * 2012-09-24 || Loss ||align=left|🇹🇭 Chankrit Ekbangsai || Petchaophraya, Rajadamnern Stadium || Bangkok, Thailand || KO || 3 ||


 * colspan=9 | Legend:
 * colspan=9 | Legend: