On record, this was a one-sided rivalry. Leandro Lo and Marcus Almeida "Buchecha" met 6 times, and Buchecha won all 6. What stands out is that none of those meetings ended in a submission. The recorded methods were advantage, decision, and points, which tells you these were tight, grinding matches decided at the margins rather than blowouts.

The weight difference explains a lot of it. Lo competed at Medium Heavyweight under 88kg, while Almeida was an ultra-heavy at +100 kg, so most of these meetings happened when Lo moved up into open weight or heavier brackets against a much larger man. Their finishing profiles also differ sharply. Almeida finished 50% of his recorded wins by submission, favoring the Armbar, while Lo submitted in only 21% of his wins, most often with the Cross Collar Choke. Against each other, though, neither man's finishing game showed up on the scorecard.

The meetings spanned from 2011 to 2018. Two came early in 2011, including a semi-final at the 2011 CBJJE Pan American Championships, and the later four were all finals, among them the 2017 IBJJF World Championship and the 2018 IBJJF World Championship. Four of the six were finals, which says something about where both men consistently landed in a bracket even when one kept beating the other.