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NBA player comparison

Dan Issel vs. Don Buse: 1980–81 season

hussEyquation1980–81 season · regular-season impact
Regular-season verdict

Dan Issel leads in impact for 1980–81

Dan Issel ranks ahead of Don Buse in estimated impact while playing. This compares regular-season performance, not total contribution across the season.

Illustrated portrait of NBA player Don Buse

Don Buse

1980–81
58 games · 1,095 minutes

Impact comparison

Impact estimate is measured in points per 100 possessions above league average. Zero is average; higher is better. Impact Rate rank is a league place, not a 0–100 score: No. 1 is best.

+2.3LeadsImpact estimateEstimated points per 100 possessions above league average · higher is better+1.0
#29LeadsImpact Rate rankLeague place · No. 1 is best#64
80Games58
2,641Minutes1,095
21.9LeadsPPG5.1
57.5%LeadsTS%47.1%

Dan Issel's estimated impact per 100 possessions was +2.3, compared with +1.0 for Don Buse. This compares their impact while playing, not their total contribution across the season. Both players are compared in the 1980–81 season using its published Impact Rate. A ranked comparison requires at least 450 minutes for each player.

Dan Issel: 80 games and 2,641 minutes. Don Buse: 58 games and 1,095 minutes. Playing time matters when judging the whole season; the impact estimate above is a rate, not a season total.

Read turnover rate alongside offensive workload. Offensive usage measures the share of team plays a player ends with a shot, free throws, or a turnover while on the court—not every touch, pass, or act of playmaking. These rows provide context; they are not extra points added to the ranking.

Regular season only. Impact figures are estimates; small gaps are not exact. Playoffs, awards and titles do not determine the verdict.

1980–81 season · regular-season impacthusseyquation.com/compare/dan-issel/don-buse/1980-81

Behind the estimate

Why the model rates them this way

A verified breakdown of this season’s published estimate is unavailable. We do not substitute another season’s calculation.

What this does not establish: these figures do not prove that either player made his teammates shoot better. A verified teammate-shooting comparison is unavailable for this selected season. A small difference in the estimates is not a decisive basketball distinction.

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Full comparison · 1980–81 season

Understand the numbers

Start with impact, then compare playing time and skills. Team results add context. These are not categories to tally into a winner.

1 · Ranking evidence

Impact: who ranks higher, and why?

The impact estimate compares performance while playing, not total contribution over the season. The individual-stat estimate plus the lineup adjustment gives the final estimate.

Impact: Dan Issel and Don Buse
MetricDan IsselDon Buse
Impact estimateEstimated points per 100 possessions above league average · higher is better+2.3Better result for this metric.+1.0
Impact Rate rankLeague place · No. 1 is best#29Better result for this metric.#64

Dan Issel: verified lineup window unavailable. Don Buse: verified lineup window unavailable. The adjustment is not necessarily based on this season alone.

2 · Playing time and responsibility

How much did each player take on?

Read games and minutes alongside impact. Offensive usage is the share of team plays a player ends with a shot, free throws, or a turnover while on court. More usage is not automatically better.

Playing time and workload: Dan Issel and Don Buse
MetricDan IsselDon Buse
Games8058
Minutes2,6411,095

3 · Individual skills

Where does each player have an advantage?

These figures describe the selected regular seasons. They provide context, not extra points added to the verdict. Green marks the better result for a metric, including lower turnover rates. Workload and shot-selection measures stay neutral. These rows are not votes toward the ranking.

Shooting

True shooting includes two-pointers, three-pointers, and free throws.

Shooting: Dan Issel and Don Buse
MetricDan IsselDon Buse
True shooting percentage57.5%Better result for this metric.47.1%
Show more stats: Shooting
Shooting: Dan Issel and Don Buse
MetricDan IsselDon Buse
Field-goal percentage50.3%Better result for this metric.39.7%
Three-point percentage16.7%32.8%Better result for this metric.
Free-throw percentage75.9%76.9%Better result for this metric.

Passing

Assist rate is the share of teammates’ made shots assisted while the player is on court. Read turnovers alongside offensive workload; lower turnover rate is generally better.

Passing: Dan Issel and Don Buse
MetricDan IsselDon Buse
Assists per game2.02.4Better result for this metric.

Rebounding

Rebound rate is the share of available rebounds collected while on court.

Rebounding: Dan Issel and Don Buse
MetricDan IsselDon Buse
Rebounds per game8.4Better result for this metric.1.4

Scoring

Points per game describe scoring volume, not overall impact.

Scoring: Dan Issel and Don Buse
MetricDan IsselDon Buse
Points per game21.9Better result for this metric.5.1

4 · Team context, not ranking inputs

What happened with and without them?

A verified with/without comparison is unavailable for this scope. We do not substitute another season’s observations.

Four separate questions

Impact, winning, playoffs, and awards

These are different ways to understand a career. Only Regular Season Impact determines the hussEyquation verdict. The other three sections add basketball context without adding points or changing the rank.

Ranking result

Regular Season Impact

Dan Issel leads in impact for 1980–81.

Dan IsselMetricDon Buse
+2.3LeadsImpact estimateEstimated points per 100 possessions above league average · higher is better+1.0
#29LeadsImpact Rate rankLeague place · No. 1 is best#64

This is the ranking result. It uses regular-season impact only. Team records, playoffs, and awards do not change it.

Context

Team Success

Dan Issel leads every available measure below.

Dan IsselMetricDon Buse
393LeadsListed-team regular-season wins384
53.3%LeadsListed-team winning percentage52.0%
250-win team seasons2
060-win team seasons0
7LeadsPlayoff team seasons6

Context only. Not included in Career Impact Rank. Final records for every listed team-season. A traded season can include more than one team.

Context

Playoff Résumé

Dan Issel leads every available measure below.

Dan IsselMetricDon Buse
7LeadsPlayoff appearances6
53LeadsPlayoff games35
23LeadsTeam playoff wins15
0Finals appearances0
0Championships0

Context only. Not included in Career Impact Rank. Team playoff results count only seasons when the player appeared in a playoff game.

Context

Awards

Don Buse leads every available measure below.

Dan IsselMetricDon Buse
1All-Star1
0MVP0
0All-NBA0
0All-Defense4Leads
0DPOY0
0Rookie of the Year0

Context only. Not included in Career Impact Rank. Major regular-season honors are recognition, not inputs to the impact ranking.

How each context field is counted
Listed-team regular-season wins
The sum of each listed team's final wins in every season the player represented that team.
Listed-team winning percentage
Those team wins divided by those teams' total regular-season games.
50- and 60-win team seasons
Listed team-seasons that finished with at least 50 or 60 wins. Shortened seasons are not projected to 82 games.
Team seasons reaching playoffs
Listed team-seasons in which that team qualified for the playoffs.
Playoff appearances and games
Postseasons and games in which the player appeared.
Team playoff wins
Team wins from those postseasons. They describe team results, not individual credit.
Finals appearances and championships
Seasons when the player appeared in the playoffs for the finalist or champion.
Awards
Recorded NBA selections and major regular-season honors. A zero means the source records none; Not available means the source field is missing.

Source and scope Basketball Reference, NBA seasons 1950–51 through 2025–26, accessed 2026-10-09.

Selected seasons

Box impact

Both bars show the same NBA season. Missing or unqualified data does not establish a winner.

Dan IsselDon Buse

Estimated points per 100 possessions above that season's league average

1
Both bars show the same NBA season. Missing or unqualified data does not establish a winner.