BOS · East · Atlantic · 2026-27

Boston Celtics

2026-27 hasn't started · Standings · Tracker

Season

Board: —

Overview Players Offense Defense Rotation On/Off Games Schedule Splits Playoffs History Organization Payroll & Contracts All Stats

Franchise scrapbook

All-time ledger and fan lore through 2025-26.

What counts

Records, titles and leaders include every league this franchise played in (NBA, ABA or BAA). Retired numbers include banners for coaches and owners. Streaks and lore are curated.

Championships

1957 · 1959 · 1960 · 1961 · 1962 · 1963 · 1964 · 1965 · 1966 · 1968 · 1969 · 1974 · 1976 · 1981 · 1984 · 1986 · 2008 · 2024

Finals appearances

11 conference titles

Playoff seasons

Seasons that reached the postseason

Regular season

3,751-2,527

59.7% all-time

Peaks & valleys

Best season

68-14

1972-73

Worst season

15-67

1996-97

Longest win streak

2008-09 · curated

Longest losing streak

2006-07 tank year adjacent · curated

Division titles

Retired numbers

History as of

2025-26

Full franchise records

Franchise leaders

Career totals in this continuous franchise.

Points

John Havlicek

26,395

Rebounds

Bill Russell

Fan lore

The weird, wonderful, and argument-starting stuff.

Most championships in NBA history (18).
Bill Russell’s 11 rings as a player remain untouchable.
Parquet + Leprechaun is the league’s oldest continuous aesthetic.

Continuous franchises keep relocated history. Conference titles count from 1970-71, when the NBA split into conferences. Season boards and roster live on the other team tabs.

Franchise timeline

Only the current name is mapped for this franchise. Earlier names, if any, are listed in the scrapbook above.

Boston Celtics
Boston · BOS · 1946-47 → present
Open 1946-47

Franchise scrapbook ↑ · All franchises

Team Arc

How this team got here, from season board history (not asset genealogy).

Show full history →Rank this team's seasons

Team-season board rows available 2021-22 → 2025-26 for this team. Cross-season metrics limited to stable counting/efficiency fields (point differential, TS%, eFG%, PPG, opp PPG). Arc coverage starts 2001-02 (documented team-board reliability floor). Earlier seasons are not treated as zeros. Absent from board in 2026-27.

Continuity follows this team's id across seasons. It is not a merged multi-franchise genealogy.

Biggest team changes

Same noise floors and trend method as analyzeTeamProfile.

2024-25 → 2025-26
- Point differential-1.5
- Blocks / game-0.5
- Assist / turnover-0.16
- 3-point volume-6.9 pts
2023-24 → 2024-25
- Point differential-2.2
- Opponent PPG-2.1
- Blocks / game-1.0
- 3-point volume+6.5 pts
2022-23 → 2023-24
- Point differential+4.8
- Opponent PPG-2.1
- Turnovers / game-1.5
- Blocks / game+1.3
2021-22 → 2022-23
- Opponent PPG+6.8
- Steals / game-0.9
- Blocks / game-0.6
- Assist / turnover+0.19

Season	Diff	TS%	eFG%	Off	Def	Explore
2025-26	+7.6	58.3%	55.3%	114.9	107.3	Season·Compare·Evidence·Games·Ask
2024-25	+9.1	59.1%	56.1%	116.3	107.2	Season·Compare·Evidence·Games·

Off = team PPG · Def = opponent PPG. Missing cells are unavailable, not zero. Roster for a year lives under Who drives it after you select the season.

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