Nathalie Ribeiro leads this rivalry 3-2 across 5 recorded meetings with Janaina Maia Lebre. All 5 were contested in the gi, and none of them ended by submission. Ribeiro took the earliest three-way stretch, winning at the 2021 Jiu-Jitsu Con final, the 2022 European Jiu-Jitsu IBJJF Championship final, and the 2022 Pan Jiu Jitsu IBJJF Championship semi-finals. Lebre answered by taking both of the last two, at the 2022 World Jiu-Jitsu IBJJF Championship semi-finals and the 2023 Tezos IBJJF Grand Prix Series.

The styles read differently on paper. Ribeiro carries a heavier overall resume, going 37-19 on record with a 66% win rate, though only 24% of those wins came by submission. Lebre sits at 20-13 with a 61% win rate, and half of her wins are finishes, her most frequent being the Straight Ankle Lock with 4. In their head-to-head, none of that finishing showed up: 4 of the 5 meetings went to points, and the outlier was decided by another method.

Common opponents show how close the two operate. Against Luiza Monteiro, Lebre is 1-3 and Ribeiro is 0-3. Against Ffion Davies, Lebre is 0-1 and Ribeiro is 2-4. Several other shared names split evenly, which fits a rivalry that has come down to points more than anything else.