Boston Celtics vs Cleveland Cavaliers Head-to-Head

Celtics built their historical edge pre-1996, winning 93 of 139 decided meetings (67%). In the modern era they are 77-68 against each other (53% Celtics). Celtics currently hold a 3-game winning streak between the teams. Games average a 11.6-point winning margin, with the largest decided blowout coming via Cavaliers' 44-point win. Across the last 20 decided meetings Celtics hold a 13-7 edge, suggesting the modern balance leans their way. The 2010s produced the deepest sample with 59 recorded meetings, more than any other decade in the series and the era that anchors most of its statistical character. Their first recorded meeting fell in 1970, so the rivalry has now spanned 56 seasons of league history. Most recent result: Celtics won 109-98 on Mar 8, 2026. Through the 2020s Celtics have led 16-10 between the teams.