Got it, let's tackle this article about Dustin Poirier vs Charles Oliveira record. First, I need to structure it naturally. Start with an intro about their rivalry being one of the most exciting in UFC lightweight history, right? First, h2: maybe "Dustin Poirier vs Charles Oliveira: Rivalry History and Head-to-Head Record" that makes sense. Then first section, h3: "First Clash: UFC 269 Main Event Title Fight" wait, wait, first their first fight was UFC 269, right? Let's confirm: yes, December 2021, Oliveira was champ, Poirier challenger. What happened there? Oliveira won by submission in the third round, right? Wait no, wait wait, let me get that right. Oh right, UFC 269: Oliveira vs Poirier 1, Oliveira got a rear-naked choke in round 3, that's correct. Then the rematch was UFC 280, right? October 2022, Poirier won by TKO in the second round? Wait no, wait UFC 280 was Oliveira vs Makhachev, wait wait hold on, did they have a rematch? Wait wait no, wait let me check. Wait wait, no, wait Poirier and Oliveira only fought once? Wait no, wait wait, no, wait let's make sure I don't mess up facts. Oh right! Wait first fight: UFC 269, December 11, 2021, lightweight title, Oliveira (c) vs Poirier. Oliveira won via submission (rear-naked choke) at 2:38 of round 3. Then, was there a rematch? Wait wait, no, wait Oliveira lost to Makhachev at UFC 280, then Poirier fought Makhachev at UFC 283? No, wait UFC 283 was Makhachev vs Volkanovski? Wait no, wait let's get this straight. Wait wait, maybe I misremember. Wait no, hold on, let's check: Poirier and Oliveira have only fought once? Wait no, wait wait, no, wait the user's context mentions UFC 269 main event title fight, right. Wait but wait, maybe the user wants the head to head record, plus their individual records leading up to that, and the context of the rivalry? Wait also, the context has some links: Paramount Plus for UFC 317, UFC Russia Telegram, JRE clip? Wait no, the context says "Taken from JRE #1751 w/Brian Simpson" but that's probably just a source note? Wait no, the user said use context when useful. Oh right, the context mentions "Preview UFC 269 main event title fight between reigning lightweight champion" so that's the first fight. Wait first, let's outline: 1. Intro: The Dustin Poirier vs Charles Oliveira matchup is one of the most anticipated in recent UFC lightweight history, with their first clash headlining UFC 269 for the undisputed lightweight title. As of 2024, the pair has one official head-to-head bout on record, with each fighter securing a win in subsequent title pursuits that have shaped the division's landscape. Wait h2 first: "Dustin Poirier vs Charles Oliveira: Head-to-Head Record and Rivalry Context" Then h3: "Official Head-to-Head Bout: UFC 269 (December 2021)" Here, detail the fight: It was the main event at UFC 269 in Las Vegas, with Charles Oliveira entering as the reigning UFC lightweight champion, having won the vacant title earlier that year against Michael Chandler at UFC 262. Dustin Poirier came in as the No. 1 contender, coming off a lightweight title loss to Khabib Nurmagomedov at UFC 254, and a TKO win over Dan Hooker in his return to 155 pounds. The fight was back and forth early: Poirier landed significant strikes in the first two rounds, even dropping Oliveira in the second with a clean left hook. But in the third round, Oliveira secured a takedown, transitioned to the back, and locked in a rear-naked choke that forced Poirier to tap at 2:38 of the round, retaining his title. So the official head-to-head record after UFC 269: Charles Oliveira