Early promotional career

Suzuki made his Rizin debut against Shoji Maruyama at Rizin 30 - Saitama on September 19, 2021.^[9] He lost the fight by a first-round knockout, 20 seconds into the opening round.^[10]

Suzuki faced Sora Yamamoto at Rizin Trigger 1 on November 28, 2021.^[11] He won the fight by unanimous decision.^[12]

Suzuki faced the 2017 K-1 Lightweight Grand Prix runner-up Ren Hiramoto at Rizin Landmark 2 on March 6, 2023.^[13] He won the fight by unanimous decision. Suzuki revealed in the post-fight interview that he had suffered injuries in both of his hands prior to the bout taking place.^[14]

Suzuki faced Kyohei Hagiwara at Super Rizin & Rizin 38 on September 25, 2022.^[15] He was able to take Hagiwara down in the second round and forced him to tap to a rear naked choke at the midway point of the round.^[16]

Suzuki faced the 2011 DREAM Japan Bantamweight Grand Prix Runner Up and two-weight DEEP champion Masakazu Imanari at Rizin Landmark Vol.4 on November 6, 2022. He won the fight by unanimous decision.^[17]

Suzuki faced Yoshiki Nakahara at Bellator MMA vs. Rizin on December 31, 2022.^[18] He won the fight by a first-round knockout.^[19]

Suzuki was expected to challenge Kleber Koike Erbst for the Rizin Featherweight Championship at Rizin 43 – Sapporo on June 24, 2023.^[20] Erbst missed weight by 400g at the official weigh-ins and was accordingly stripped of his title, leaving only Suzuki eligible to capture the newly vacant belt.^[21] Although Suzuki tapped to a triangle choke at the 2:59 minute mark of the opening round, the fight result was immediately overturned into a no-contest, due to Erbst's weight miss.^[22]

Suzuki faced former Bellator Lightweight Champion and reigning Bellator Featherweight Champion Patrício Pitbull in a short notice 154-pound catchweight bout on July 30, 2023, at Bellator MMA x Rizin 2.^[23] He won the fight via knockout in the first round.^[24]

Featherweight champion

Suzuki challenged the reigning Rizin FF Featherweight champion Vugar Keramov at Rizin Landmark 7 on November 4, 2023.^[25] He won the fight by a first-round technical knockout via upkick and ground and pound from bottom position.^[26]

Suzuki made his maiden Rizin Featherweight Championship defense against Masanori Kanehara at Rizin 46 on April 29, 2024.^[27] He retained the title by a first-round technical knockout.^[28]

Early career

Suzuki made his professional kickboxing debut against Ryoga "Vulcan" Imoto at Shoot Boxing 2019 Young Caeser Cup Central 25 on May 26, 2019. He won the fight by unanimous decision, with two scorecards of 30–28 and one scorecard of 30–26. Suzuki won a single shoot point in the opening round, awarded to him for successfully planting Imoto on his back with a hip throw.^[29]

Suzuki faced Yosuke at REBELS 62 on October 4, 2019. He won the fight by a first-round technical knockout. Suzuki knocked his opponent down with a right cross 35 seconds into the opening round and knocked him down for the second time with a left uppercut 40 seconds later, which forced Yosuke's corner to throw in the towel.^[30]

Suzuki faced the 37-fight veteran Satoru Hashimoto in a -64 kg catchweight bout at the KNOCK OUT × REBELS cross-promotional event on October 4, 2019.^[31] He need just 45 seconds to floor Hashimoto with a flurry of punches, which left the veteran unable to rise from the canvas.^[32][33]

Suzuki faced Yoshiki in another -64 kg catchweight bout at KNOCK OUT 2019 BREAKING DAWN on November 1, 2019.^[34] He won the fight by a second-round knockout. Suzuki knocked his opponent down with a short left hook at the midway point of the round and knocked him out with a right straight soon after. The contest was briefly stopped early in the first round, as the referee accidentally poked Yoshiki in the eye while separating the fighters from the clinch.^[35]

KNOCK OUT Grand Prix

On December 16, 2019, it was announced that Suzuki would be one of eight participants in the 2020 KNOCK OUT Black -64 kg Grand Prix, which was held on February 11, 2020, at the Ota City General Gymnasium in Tokyo, Japan. Suzuki was booked to face Kyokushin karate standout and future K-1 Lightweight champion Yuki Yoza in the tournament quarterfinals.^[36] He won the fight by majority decision, with scores of 29–28, 28–28 and 29–28. The pivotal moment of the bout happened in the first minute of the final round, when Suzuki was able to knock Yoza down with a lead leg knee strike. This knockdown awarded him an automatic 10–8 scorecard and edged the scorecards in his favor, as the fight might have otherwise ended in a draw or a victory for Yoza.^[37]

Suzuki faced the SHOOT BOXING Japan Lightweight champion Renta Nishioka in the tournament semifinals. He lost the fight by unanimous decision. Two of the judges scored the fight 30–28 for Nishioka, while the third judge awarded the shootboxer a slightly wide 30–28 scorecard.^[38]

After suffering his first loss under kickboxing rules, Suzuki was booked to face the BigBang super lightweight champion Shoya Sugiyama in a -64 kg catchweight bout at KNOCK OUT CHAMPIONSHIP 2 on September 12, 2020. He won the fight by a third-round technical knockout. The referee stepped in to stop the contest at the 2:19 minute mark of the final round, judging Sugiyama to have suffered too much damage.^[39]

Move up in weight

Suzuki moved up to super lightweight (-65 kg) to face Yasuhiro Matsuo at REBELS 67 on November 8, 2020. He needed just 77 seconds to thrice knock Matsuo down, which resulted in an automatic technical knockout victory for him.^[40] During his in-ring post-fight speech, Suzuki asked the promotion for another fight at REBELS 69 on December 6, just 28 days later.^[41] REBELS granted his wish and booked him to face Naoya Atsumi.^[42] Suzuki needed just 31 seconds to knock Atsumi out with a right hook.^[43]

Suzuki faced Masaya Kubo at KNOCK OUT ～The REBORN～ on March 13, 2021.^[44] He knocked Kubo out with a right straight at the midway point of the opening round.^[45]

KNOCK OUT champion

Suzuki faced Keijiro Miyakoshi for the inaugural KNOCK OUT Black Super Lightweight Championship at KNOCK OUT 2021 vol.3 on July 18, 2021.^[46] He knocked Miyakoshi down with a left hook nine seconds into the opening round. Although Miyakoshi was able to rise from the canvas in time to beat the eight-count, he was knocked down for a second time with a series of hooks 33 seconds later, after which the referee stopped the contest.^[47]

Suzuki faced Tapruwan Hadesworkout at KNOCK OUT 2022 vol.1 on January 22, 2022.^[48] He twice knocked Tapruwan down with a right hook in the first round, with the second knockdown rendering the Thai unable to rise from the canvas.^[49]

Suzuki faced Marcos Rios, who was at the time regarded as the tenth best kickboxer at his weight, at KNOCK OUT 2023 Super Bout Blaze on March 4, 2023.^[50] He won the fight by a first-round knockout, after twice knocking Rios down.^[51]