History:
Spring 2023 marked the 25th year in which WhoWins™ has been providing historical victory probabilities, team performance records, and web-site design from the previous millennium on MLB/NBA/NHL best-of-7 playoff series and games. Our first archived web page, from 1999.

Ins vs Outs:
In the NBA, the defending-champion Boston Celtics have the longest active playoff season streak with eleven straight years in 2025, while the Detroit Pistons return to the NBA playoffs for the first time since 2019. The Philadelphia 76ers end a seven-season appearance streak with their absence from Spring 2025, while the Charlotte Hornets (II) have not seen playoff action since 2016. In the NHL, the Colorado Avalanche and the Tampa Bay Lightning are each making their eighth consecutive playoff season appearance with their Spring 2025 berths, while the Ottawa Senators win a playoff berth for the first time since 2017. The absence by the Boston Bruins from the Spring 2025 NHL playoffs marks the end of their eight-season appearance streak, while the Buffalo Sabres have not made the NHL playoffs since 2011.

Updates for Spring 2025:
All sixteen NBA and NHL playoff series pages are now online; all tables linked through the first column on this page are now updated.

Fall 2024 Ouster Board:
start (in Los Angeles): 10/13, 8:15pmEDT
--- Semifinals round ---
Cleveland MLB: 10/19, 11:45pmEDT
New York Mets MLB: 10/20, 11:23pmEDT (MLB Bronze)
--- Finals round ---
New York Yankees MLB: 10/30, 11:51pmEDT (MLB Silver)
Los Angeles Dodgers MLB: 10/30, 11:51pmEDT (MLB Gold)

Spring 2024 Ouster Board:
start (in Cleveland NBA): 4/20, 1:14pmEDT
--- Preliminary round ---
Washington NHL: 4/28, 10:40pmEDT
Phoenix NBA: 4/29, 12:28amEDT
Tampa Bay NHL: 4/29, 9:49pmEDT
New Orleans NBA: 4/29, 10:59pmEDT
Los Angeles Lakers NBA: 4/30, 12:26amEDT
New York Islanders NHL: 4/30, 10:16pmEDT
Winnipeg (II) NHL: 5/1, 12:29amEDT
Miami NBA: 5/1, 9:49pmEDT
Los Angeles NHL: 5/2, 12:52amEDT
Milwaukee NBA: 5/2, 9:00pmEDT
Philadelphia NBA: 5/2, 11:41pmEDT
Nashville NHL: 5/3, 9:46pmEDT
Los Angeles Clippers NBA: 5/4, 12:22amEDT
Toronto NHL: 5/4, 11:20pmEDT
Orlando NBA: 5/5, 3:48pmEDT
Vegas NHL: 5/5, 10:06pmEDT
--- Quarterfinals round ---
Cleveland NBA: 5/15, 9:20pmEDT
Carolina NHL: 5/16, 9:42pmEDT
Boston NHL: 5/17, 9:50pmEDT
Colorado NHL: 5/18, 1:58amEDT
Oklahoma City NBA: 5/18, 10:40pmEDT
New York NBA: 5/19, 6:04pmEDT
Denver NBA: 5/19, 10:31pmEDT
Vancouver NHL: 5/20, 11:43pmEDT
--- Semifinals round ---
Indiana NBA: 5/27, 10:36pmEDT
Minnesota NBA: 5/30, 10:57pmEDT (NBA Bronze)
New York Rangers NHL: 6/1, 10:46pmEDT
Dallas NHL: 6/2, 10:37pmEDT (NHL Bronze)
--- Finals round ---
Dallas NBA: 6/17, 10:59pmEDT (NBA Silver)
Boston NBA: 6/17, 10:59pmEDT (NBA Gold)
Edmonton NHL: 6/24, 10:53pmEDT (NHL Silver)
Florida NHL: 6/24, 10:53pmEDT (NHL Gold)

BEST-OF-7 FEATURES
Articles on best-of-7 series phenomena.