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| Date | Meet | Equipment | Squat (kg) | Bench (kg) | Deadlift (kg) | Total (kg) | DOTS |
|---|---|---|---|---|---|---|---|
| 2006-09-07 | Campeonato Sudamericano de Powerlifting | Single-ply | 115 | 57.5 | 112.5 | 285 | 354.1 |
| 2007-08-07 | Campeonato Panamericano de Powerlifting | Single-ply | 135 | 70 | 142.5 | 347.5 | 432.96 |
| 2007-09-03 | World Sub-Juniors & Juniors Powerlifting Championships | Single-ply | 140 | 62.5 | 132.5 | 335 | 412.21 |
| 2008-09-01 | World Sub-Juniors & Juniors Powerlifting Championships | Single-ply | 150 | 77.5 | 147.5 | 375 | 458.07 |
| 2008-10-30 | World Powerlifting Championships | Single-ply | 157.5 | 80 | 152.5 | 390 | 477.03 |
| 2008-12-04 | Campeonato Sudamericano de Levantamiento de Potenica | Single-ply | 152.5 | 82.5 | 140 | 375 | 460.8 |
| 2009-09-07 | World Sub-Juniors & Juniors Powerlifting Championships | Single-ply | 177.5 | 90 | 140 | 407.5 | 476.31 |
| 2010-03-06 | Quest Pro Invitational | Single-ply | 175 | 97.5 | 157.5 | 430 | 488.75 |
| 2010-08-05 | Campeonato Sudamericano de Levantamiento de Potencia | Single-ply | — | 100 | 152.5 | — | — |
| 2010-11-07 | World Powerlifting Championships | Single-ply | — | 100 | 150 | — | — |
| 2010-11-25 | Campeonato Sudamericano de Fuerza en Banco | Single-ply | — | 102.5 | — | — | 114.84 |
| 2011-03-05 | Brown's Gym Pro Invitational | Single-ply | 187.5 | 107.5 | 170 | 465 | 516.56 |
| 2011-08-18 | Campeonato Panamericano de Powerlifting | Single-ply | 190 | 110 | 170 | 470 | 542.87 |
| 2012-03-03 | Browns Gym Pro Invitational | Single-ply | 185 | 102.5 | 167.5 | 455 | 522.49 |
| 2012-11-10 | World Powerlifting Championships | Single-ply | 172.5 | 97.5 | 167.5 | 437.5 | 535.93 |
| 2013-07-01 | Pan-American Powerlifting Championships | Single-ply | 170 | 95 | 157.5 | 422.5 | 495.64 |
| 2014-07-30 | Campeonato Sudamericano de Powerlifting | Single-ply | 170 | 95 | 140 | 405 | 493.66 |
| 2014-08-24 | Campeonato Paranaense de Supino | Single-ply | — | 102.5 | — | — | 124.94 |
| 2014-11-03 | World Powerlifting Championships | Single-ply | 180 | — | 157.5 | — | — |
| 2015-09-18 | Pan-American Equipped Powerlifting Championships | Single-ply | 177.5 | 110.5 | 175 | 463 | 534.16 |
| 2015-11-09 | World Powerlifting Championships | Single-ply | 185 | 102.5 | 170 | 457.5 | 529.3 |
| 2016-07-14 | Sudamericano de Powerlifting Equipado | Single-ply | 175 | 105 | 180 | 460 | 532.57 |
| 2016-11-14 | World Open Championships | Single-ply | 187.5 | 107.5 | 172.5 | 467.5 | 540.23 |
| 2018-04-21 | Campeonato Brasileiro De Powerlifting | Single-ply | 170 | 92.5 | 165 | 427.5 | 492.34 |
| 2018-11-05 | World Powerlifting Championships | Single-ply | 175 | 95 | 170 | 440 | 539.94 |
| 2019-03-16 | Campeonato Brasileiro de Powerlifting | Raw | 118.5 | 81 | 144 | 343.5 | 418.97 |
| 2019-04-12 | Arnold Rogue Classic Powerlifting Grand Prix | Raw | 120 | 75 | 145 | 340 | 415.26 |
| 2019-04-13 | Arnold Challenger | Single-ply | 160 | 95 | 170.5 | 425.5 | 519.69 |
| 2019-04-13 | Arnold King of the Bench Press | Single-ply | — | 95 | — | — | 116.03 |
| 2019-11-18 | World Powerlifting Championships | Single-ply | 182.5 | 102.5 | 172.5 | 457.5 | 559.52 |
| 2020-02-19 | Campeonato Brasileiro de Powerlifting Raw | Raw | 123 | 84 | 155 | 362 | 442.43 |
| 2021-10-09 | Campeonato Brasileiro De Powerlifting | Single-ply | 170 | 95 | 162.5 | 427.5 | 523.18 |
| 2021-11-08 | World Powerlifting Championships | Single-ply | 167.5 | 87.5 | 160 | 415 | 508.23 |
| 2022-06-16 | Campeonato Paulista De Powerlifting | Single-ply | 177.5 | 103 | 167.5 | 448 | 546.07 |
| 2022-07-08 | World Games | Single-ply | 185 | — | 162.5 | — | — |
| 2023-03-01 | Campeonato Brasileiro de Powerlifting | Raw | 122.5 | 80 | 155 | 357.5 | 411.96 |
| 2023-06-11 | World Classic Powerlifting Championships | Raw | 115 | 72.5 | 147.5 | 335 | 411.09 |
| 2024-11-11 | World Open Equipped Powerlifting Championships | Single-ply | 172.5 | — | 147.5 | — | — |
| 2025-07-08 | Campeonato Paulista de Powerlifting e Supino | Raw | 125 | 75 | 150 | 350 | 405.69 |
Irani Rodrigues Barbosa's career best to date is 470 kg, set in 2011 at age 24. Their total grew 185 kg over 4.9 years between their first meet and that mark (~37.4 kg/year). Career variance was 64% squat-driven.
Career-best meet: Campeonato Panamericano de Powerlifting · FESUPO
vs Raw · 57 kg class · open · Brazil · drug-tested
vs Raw · 57 kg class · open · drug-tested
vs Single-ply · 57 kg class · open · drug-tested