Name: ProbHoops AF-Score historical archive
Creator: ProbHoops

MEASURED HISTORY

What this page is not: not a win probability, not all-time NBA records. ProbHoops measures the seven seasons from 2019-20 onward. It does not reconstruct the league before that, and nothing here is presented as an all-time record.

THE ARCHIVE

AF-Score, every team, every measured season

210 · 100% OBSERVED

Darker means a stronger season, on one scale shared by the whole archive. Rank is out of 30.

Team	2019–20	2020–21	2021–22	2022–23	2023–24	2024–25	2025–26	Range
ATLANTA HAWKS	22.0#30	57.4#11	58.2#10	52.3#15	45.8#21	53.3#15	61.7#10	39.7
BOSTON CELTICS	62.6#7	49.3#17	68.6#3	69.2#1	78.7#1	76.4#1	69.6#5	29.4
BROOKLYN NETS	47.9#19	62.4#7	50.4#18	49.0#17	42.7#22	28.3#26	17.9#29	44.5
CHARLOTTE HORNETS	33.7#26	47.7#20	56.3#13	35.1#27	20.0#30	23.0#29	60.7#11	40.7
CHICAGO BULLS	34.8#25	48.6#19	50.1#19	55.2#11	46.4#20	49.4#18	39.7#21	20.4
CLEVELAND CAVALIERS	29.2#29	28.8#28	60.6#7	67.2#2	61.3#6	75.1#2	64.9#7	46.3
DALLAS MAVERICKS	64.5#4	53.3#13	58.9#9	48.2#20	54.4#18	45.1#21	35.8#23	28.7
DENVER NUGGETS	59.5#9	66.0#4	57.7#11	65.1#3	68.3#3	68.6#4	67.2#6	10.9
DETROIT PISTONS	39.3#22	35.7#26	26.0#28	21.2#30	21.6#28	52.6#17	71.0#3	49.8
GOLDEN STATE WARRIORS	32.1#27	50.0#15	65.7#4	54.0#13	58.0#10	64.8#6	49.7#16	33.6
HOUSTON ROCKETS	49.8#17	26.6#29	24.0#29	24.7#29	48.4#19	57.0#12	59.2#12	35.2
INDIANA PACERS	58.7#10	50.5#14	39.7#23	40.0#25	56.4#15	61.1#9	29.2#27	31.9
LA CLIPPERS	62.9#6	65.3#5	46.8#21	48.7#19	57.8#12	61.3#8	49.6#17	18.5
LOS ANGELES LAKERS	68.4#2	58.3#9	38.2#24	54.5#12	57.8#11	56.0#13	58.0#13	30.2
MEMPHIS GRIZZLIES	51.1#16	59.5#8	69.2#2	63.8#4	29.8#26	60.4#10	33.0#25	39.4
MIAMI HEAT	63.7#5	55.2#12	62.5#6	51.5#16	59.3#8	54.9#14	63.0#9	12.2
MILWAUKEE BUCKS	72.5#1	67.9#2	60.3#8	62.1#7	57.6#13	57.7#11	29.4#26	43.1
MINNESOTA TIMBERWOLVES	37.7#24	37.3#25	53.3#15	45.7#22	65.8#4	62.1#7	56.3#14	28.5
NEW ORLEANS PELICANS	48.4#18	57.5#10	52.0#17	56.6#10	65.6#5	25.6#28	36.3#22	40.0
NEW YORK KNICKS	30.7#28	49.0#18	48.7#20	58.0#8	60.7#7	65.7#5	70.5#4	39.8
OKLAHOMA CITY THUNDER	53.8#13	22.2#30	27.7#26	48.9#18	69.0#2	74.5#3	74.2#2	52.3
ORLANDO MAGIC	54.9#12	31.0#27	26.3#27	42.5#24	54.5#17	45.9#20	51.8#15	28.6
PHILADELPHIA 76ERS	60.8#8	63.2#6	57.1#12	62.6#5	55.0#16	29.9#25	46.9#19	33.3
PHOENIX SUNS	55.8#11	67.5#3	72.8#1	57.1#9	58.2#9	44.0#22	47.9#18	28.8
PORTLAND TRAIL BLAZERS	39.4#21	49.3#16	23.7#30	36.6#26	20.4#29	35.2#24	45.0#20	28.9
SACRAMENTO KINGS	42.3#20	40.7#24	34.1#25	62.2#6	57.1#14	52.6#16	26.0#28	36.2
SAN ANTONIO SPURS	52.3#14	47.1#21	55.8#14	26.4#28	37.7#23	48.4#19	77.3#1	50.9
TORONTO RAPTORS	65.3#3	45.1#22	53.0#16	52.9#14	36.8#24	38.5#23	63.0#8	28.5
UTAH JAZZ	51.8#15	69.9#1	63.7#5	44.8#23	35.7#25	25.7#27	34.2#24	44.2
WASHINGTON WIZARDS	38.1#23	44.7#23	43.5#22	48.1#21	24.6#27	12.0#30	12.8#30	36.1

BIGGEST RISES

Largest season-over-season gains

Score change and rank change are both shown: a team can gain score while the field gains more.

CHARLOTTE HORNETS+37.72024–25 → 2025–26 · +18 places
ATLANTA HAWKS+35.42019–20 → 2020–21 · +19 places
CLEVELAND CAVALIERS+31.82020–21 → 2021–22 · +21 places
DETROIT PISTONS+31.02023–24 → 2024–25 · +11 places
MEMPHIS GRIZZLIES+30.62023–24 → 2024–25 · +16 places
SAN ANTONIO SPURS+28.92024–25 → 2025–26 · +18 places
SACRAMENTO KINGS+28.12021–22 → 2022–23 · +19 places
TORONTO RAPTORS+24.52024–25 → 2025–26 · +15 places

BIGGEST FALLS

Largest season-over-season losses

The same measurement in the other direction. Neither list implies a cause.

NEW ORLEANS PELICANS-40.02023–24 → 2024–25 · -23 places
MEMPHIS GRIZZLIES-34.02022–23 → 2023–24 · -22 places
INDIANA PACERS-31.92024–25 → 2025–26 · -18 places
OKLAHOMA CITY THUNDER-31.62019–20 → 2020–21 · -17 places
SAN ANTONIO SPURS-29.42021–22 → 2022–23 · -14 places
MILWAUKEE BUCKS-28.32024–25 → 2025–26 · -15 places
MEMPHIS GRIZZLIES-27.42024–25 → 2025–26 · -15 places
SACRAMENTO KINGS-26.62024–25 → 2025–26 · -12 places

CORPUS RECORDS

Records inside the measured window

2019–2025

These are not all-time NBA records and are not presented as any. They are the extremes of the 210 team-seasons ProbHoops has measured.

HIGHEST TEAM-SEASON

Boston Celtics

78.7 in 2023–24

LOWEST TEAM-SEASON

Washington Wizards

12.0 in 2024–25

WIDEST RANGE

Oklahoma City Thunder

52.3 points between best and worst season

STEADIEST

Denver Nuggets

10.9 points between best and worst season

SEASON BY SEASON

Open a single season

2025–26SAS led · 77.3 2024–25BOS led · 76.4 2023–24BOS led · 78.7 2022–23BOS led · 69.2 2021–22PHX led · 72.8 2020–21UTA led · 69.9 2019–20MIL led · 72.5

LEAGUE CONTEXT

Why the window matters

A probability model has to understand the season it is simulating. The NBA of 1954 played without a shot clock; the NBA of 1979 played without a 3-point line. ProbHoops reconstructs only seasons it can observe completely, under the rules that actually applied — the 2019-20 restart and the 2020-21 shortened schedule are not forced into an 82-game template.

1946 — The Basketball Association of America plays its first game, New York at Toronto.
1949 — The league takes the name National Basketball Association.
1954–55 — The 24-second shot clock transforms possession volume and scoring.
1976 — The ABA–NBA merger brings the Nets, Nuggets, Pacers and Spurs across.
1979–80 — The 3-point line permanently changes shot value and spacing.
2019–26 — The window ProbHoops measures, at 100% observed coverage.

Milestones before 2019 are league history, included for context. They are not ProbHoops measurements and carry no AF-Score.