Niko Antoniewicz | CompSeek

The London Open 2026 2026-10-03

Lost vs Winner from 6-60
Boys NoGi / U12 / Gray / -78 lbs · Round 2
Lost vs Joaquin Pham-de Leon (Salvosa BJJ/Ascension)
Boys Gi / U12 / Gray / -78 lbs · Round 2

Global Combat Jiu-Jitsu Toronto 2026-09-26

🥇 1st Kids Gi / Boys / Kids 4 (10-11 years) / Grey / 36.3 kg · 🥇 1st Boys No-Gi / 11-12 YEARS OLD / Intermediate / -36KG

Won vs Chase Lay (Salvosa BJJ/Ascension)
Boys No-Gi / 11-12 YEARS OLD / Intermediate / -36KG · Round 2 · points
Won vs Chase Lay (Salvosa BJJ/Ascension)
Boys No-Gi / 11-12 YEARS OLD / Intermediate / -36KG · Round 1 · submission
Won vs Victor Vieira (SFS Martial Arts Academy)
Kids Gi / Boys / Kids 4 (10-11 years) / Grey / 36.3 kg · Round 4 · submission
Won vs Kubaren Mukunthan (Infinum BJJ)
Kids Gi / Boys / Kids 4 (10-11 years) / Grey / 36.3 kg · Round 5 · points
Won vs Chase Lay (Salvosa BJJ/Ascension)
Kids Gi / Boys / Kids 4 (10-11 years) / Grey / 36.3 kg · Round 2 · submission
Lost vs Lucas Resende (King of the Mats)
Kids Gi / Boys / Kids 4 (10-11 years) / Grey / 36.3 kg · Round 1 · points

2026 Oshawa BJJ Open 2026-07-25

🥇 1st Boys NoGi / U12 / Gray / -72 lbs

Won vs Cole Cantwell (Oshawa BJJ and Fitness)
Boys NoGi / U12 / Gray / -72 lbs · Round 3 · points
Won vs Isaiah Thomas (Salvosa BJJ/Ascension)
Boys NoGi / U12 / Gray / -72 lbs · Round 2 · submission
Lost vs Loyal Robinson (Toronto Top Team)
Boys NoGi / U12 / Gray / -72 lbs · Round 1 · points
Lost vs Isaiah Thomas (Salvosa BJJ/Ascension)
Boys Gi / U12 / Gray / -72 lbs · Round 2 · submission
Lost vs Victor Vieira (SFS Martial Arts Academy)
Boys Gi / U12 / Gray / -72 lbs · Round 1 · points

NextGen Toronto 2026 10th Year Anniversary 2026-07-11

🥇 1st Boys Gi / Grey / Junior II (11yrs) / -33,20 kg · 🥉 3rd Co-Ed No-Gi / Grey / Junior III (12yrs) / -38 kg

Won vs Anastasia Walker (King of the Mats)
Co-Ed No-Gi / Grey / Junior III (12yrs) / -38 kg · Round 1 · submission
Lost vs Austin Pagonis (Toronto Jiu-Jitsu Club)
Co-Ed No-Gi / Grey / Junior III (12yrs) / -38 kg · Round 1 · points
Won vs Jeesung Kim (Joslin’s MMA)
Boys Gi / Grey / Junior II (11yrs) / -33,20 kg · Round 3 · submission
Won vs Caden Moffat (Revival BJJ Academy)
Boys Gi / Grey / Junior II (11yrs) / -33,20 kg · Round 2 · submission

2026 Kids Jiu Jitsu Festival 2026-06-06

🥇 1st Boys Gi / U12 / White / -72 lbs

Won vs Lev Plener (House of Combat)
Boys Gi / U12 / White / -72 lbs · Round 3 · submission
Won vs Maksen Skiby (Grappling Arts Academy & Fitness)
Boys Gi / U12 / White / -72 lbs · Round 2 · submission
Won vs Juan Andrade (Infinum BJJ)
Boys Gi / U12 / White / -72 lbs · Round 1 · submission

2026 Aurora Annual Jiu-Jitsu Championship 2026-04-18

🥇 1st Boys Gi / U12 / White / -78 lbs · 🥇 1st Co-Ed NoGi / U12 / White / -78 lbs

Won vs Anaiya Brown (Team DNA)
Co-Ed NoGi / U12 / White / -78 lbs · Round 2 · submission
Won vs Easton Dunn (Georgian Bay Brazilian Jiu-Jitsu)
Co-Ed NoGi / U12 / White / -78 lbs · Round 1 · submission
Won vs Lucas Chiew (Action & Reaction MMA)
Boys Gi / U12 / White / -78 lbs · Round 3 · submission
Won vs Easton Dunn (Georgian Bay Brazilian Jiu-Jitsu)
Boys Gi / U12 / White / -78 lbs · Round 2 · submission

Lutando Series - Vaughan Toronto 2026 2026-03-14

🥇 1st Kids / Gi / Pee Wee (9-10yrs) / White / -74.00 lbs · 🥇 1st Kids / NoGi / Pee Wee (9-10yrs) / White / -74.00 lbs

Won vs Cristiano Petinarelis (SFS Martial Arts Academy)
Kids / NoGi / Pee Wee (9-10yrs) / White / -74.00 lbs · Round 3 · submission
▶ Watch at 3:11:11
Won vs Luke Zografos (SFS Martial Arts Academy)
Kids / NoGi / Pee Wee (9-10yrs) / White / -74.00 lbs · Round 1 · points
▶ Watch at 2:58:36
Won vs Lev Lieberowitz (SFS Martial Arts Academy)
Kids / Gi / Pee Wee (9-10yrs) / White / -74.00 lbs · Round 2 · submission
▶ Watch at 0:09:30
Won vs Lev Lieberowitz (SFS Martial Arts Academy)
Kids / Gi / Pee Wee (9-10yrs) / White / -74.00 lbs · Round 1 · submission
▶ Watch at 0:00:00

2026 Durham Classic 2026-02-21

🥇 1st Boys Gi / U12 / White / -72 lbs · 🥇 1st Boys NoGi / U12 / White / -78 lbs

Won vs Kanan Razon (Mamute Martial Arts Academy)
Boys NoGi / U12 / White / -78 lbs · Round 3 · submission
Won vs Cristiano Petinarelis (SFS Martial Arts Academy)
Boys NoGi / U12 / White / -78 lbs · Round 1 · submission
Won vs Mohammad Hamza Azizi (Salvosa BJJ/Ascension)
Boys Gi / U12 / White / -72 lbs · Round 5 · submission
Won vs Lucas Piazzese (House of Combat)
Boys Gi / U12 / White / -72 lbs · Round 4 · submission
Won vs Xavier Iavarone-Daniels (Muay Thai Whitby)
Boys Gi / U12 / White / -72 lbs · Round 3 · submission
Won vs Connor Vautour (Limitless Martial Arts Canada)
Boys Gi / U12 / White / -72 lbs · Round 2 · submission

Grappling Industries TORONTO 2026-01-17

🥇 1st Gi Kids / White / 10 - 11 years / -75 lbs · 🥉 3rd No Gi Kids / Beginner (White) / 10 - 11 years / -75 lbs

Won vs Lucas Piazzese (House of Combat)
No Gi Kids / Beginner (White) / 10 - 11 years / -75 lbs · Round 4 · submission
Won vs Julian Splane (Current BJJ)
No Gi Kids / Beginner (White) / 10 - 11 years / -75 lbs · Round 3 · decision
Lost vs Wyatt Sprague (Obxmma/megalodon)
No Gi Kids / Beginner (White) / 10 - 11 years / -75 lbs · Round 2 · submission
Lost vs Chase Lay (Salvosa BJJ/Ascension)
No Gi Kids / Beginner (White) / 10 - 11 years / -75 lbs · Round 1 · submission
Won vs Prince Euhan Ruiz (Chesswood BJJ)
Gi Kids / White / 10 - 11 years / -75 lbs · Round 4 · points
Won vs Carson Valerio (Pound4Pound - Resolute Jiu-Jitsu)
Gi Kids / White / 10 - 11 years / -75 lbs · Round 3 · submission
Won vs Julian Splane (Current BJJ)
Gi Kids / White / 10 - 11 years / -75 lbs · Round 2 · points
Won vs Lucas Piazzese (House of Combat)
Gi Kids / White / 10 - 11 years / -75 lbs · Round 1 · submission

Jiu-Jitsu For Life Team 2025 Annual 2025-11-29

🥇 1st Boys Gi / White / Junior I (10yrs) / -31,20 kg · 🥈 2nd Boys No-Gi / White / Junior I (10yrs) / -37 kg

Lost vs Callum Colquhoun (Oshawa BJJ and Fitness)
Boys No-Gi / White / Junior I (10yrs) / -37 kg · Round 2 · submission
Lost vs Callum Colquhoun (Oshawa BJJ and Fitness)
Boys No-Gi / White / Junior I (10yrs) / -37 kg · Round 1 · points
Won vs Finley Smith (Toronto Jiu-Jitsu Club)
Boys Gi / White / Junior I (10yrs) / -31,20 kg · Round 2 · submission
Won vs Finley Smith (Toronto Jiu-Jitsu Club)
Boys Gi / White / Junior I (10yrs) / -31,20 kg · Round 1 · submission

2025 APEX Combat Series 2025-11-22

🥇 1st Boys Gi / Youth 1 (10 - 11yrs) / White / -78,5 lbs

Won vs Lucas Krikunez (WABI SABI JIU JITSU)
Boys Gi / Youth 1 (10 - 11yrs) / White / -78,5 lbs · Round 3 · submission
Won vs Isaac Diaz (Action & Reaction MMA)
Boys Gi / Youth 1 (10 - 11yrs) / White / -78,5 lbs · Round 2 · points
Won vs Michael Karavardanyan (SFS Martial Arts Academy)
Boys Gi / Youth 1 (10 - 11yrs) / White / -78,5 lbs · Round 1 · points

2025 Ontario Open NoGi + ACE Cup Gi 2025-10-25

🥈 2nd Boys Gi / Youth 1 (10 - 11yrs) / White / -71,5 lbs · 🥈 2nd Boys NoGi / Youth 1 (10 - 11yrs) / White / -71,5 lbs

Lost vs Leandro Da Costa (Warrior Mixed Martial Arts - Newmarket)
Boys NoGi / Youth 1 (10 - 11yrs) / White / -71,5 lbs · Round 3 · submission
Won vs Kingston Pellejera (SBG Canada)
Boys NoGi / Youth 1 (10 - 11yrs) / White / -71,5 lbs · Round 2 · decision
Lost vs Beau Bekavac (King of the Mats)
Boys Gi / Youth 1 (10 - 11yrs) / White / -71,5 lbs · Round 3 · submission
Won vs Carson Valerio (Pound4Pound - Resolute Jiu-Jitsu)
Boys Gi / Youth 1 (10 - 11yrs) / White / -71,5 lbs · Round 2 · disqualification
Won vs Mohammad Hamza Azizi (Salvosa BJJ/Ascension)
Boys Gi / Youth 1 (10 - 11yrs) / White / -71,5 lbs · Round 1 · submission