The Los Angeles Lakers' home victory over San Antonio on Tuesday night ended the Thunder's hopes for the No. 2 playoff seed in the Western Conference. Whether the Lakers win or lose tonight at Sacramento, they will have a higher seed than OKC. The Thunder closes out the regular season at home tonight against the Milwaukee Bucks. OKC will be either the No. 3 or No. 4 seed and will have homecourt advantage in a best-of-seven opening-round series. The Thunder (55-26) wins a head-to-head tiebreaker against Dallas (56-25) thanks to being a division winner, but loses the tiebreaker against the Lakers (56-25) due to LA winning the season series 2-1. - If OKC wins and Dallas loses at home tonight against New Orleans, the Thunder will be the No. 3 seed and would play No. 6 Portland. - If OKC loses, it will be the No. 4 seed and would play No. 5 Denver. - If there is a three-way tie in the final standings, the Lakers would be the No. 2 seed, OKC would be No. 3 and Dallas would be No. 4. The 82-game regular season ends tonight with a full slate of games, marking only the second time in league history that every team will play on the final day. The previous occasion was in the 1956-57 season, when the league had eight teams. This year's opening round will begin Saturday and Sunday. Dates and times have yet to be announced, but could be revealed late tonight.