The temporary rule changes for the 2020 season would continue in the 2021 regular season: A runner will be placed on second base at the start of every half-inning of any game that goes into extra innings. Doubleheaders will be played as two seven-inning games.
Wild Card
LDS
LCS
World Series
NYY 2
BOS 6
STL 1
LA 3
TB 1
BOS 3
CHI 1
HOU 3
SF 2
LA 3
ATL 3
MIL 1
HOU 4
BOS 2
ATL 4
LA 2
Atlanta Braves - 2021 MLB Playoffs Logo
ATL 4
HOU 2
Champ
ATL
2021 MLB Champion Atlanta Braves
z: best record, c: conference winner, y: division winner, w: wildcard, x: clinched playoff spot

NLDS

Best of 5-game series
Date    OpponentResultScoreSeries
10/8at MilwaukeeL  1-2 0-1
10/9at MilwaukeeW  3-0 1-1
10/11vs MilwaukeeW  3-0 2-1
10/12vs MilwaukeeW  5-4 3-1

NLCS

Best of 7-game series
Date    OpponentResultScoreSeries
10/16vs LA DodgersW  3-2 1-0
10/17vs LA DodgersW  5-4 2-0
10/19at LA DodgersL  5-6 2-1
10/20at LA DodgersW  9-2 3-1
10/21at LA DodgersL  2-11 3-2
10/23vs LA DodgersW  4-2 4-2

World Series

Best of 7-game series
Date    OpponentResultScoreSeries
10/26at HoustonW  6-2 1-0
10/27at HoustonL  2-7 1-1
10/29vs HoustonW  2-0 2-1
10/30vs HoustonW  3-2 3-1
10/31vs HoustonL  5-9 3-2
11/2at HoustonW  7-0 4-2