Dan Issel
1976–77 to 1984–85 · 9 seasons
NBA player comparison
Dan Issel vs. Tom Boerwinkle: Career comparison
Regular-season verdict
Tom Boerwinkle ranks higher in career impact
Tom Boerwinkle
1968–69 to 1977–78 · 10 seasons
Impact comparison
Box impact estimates points per 100 possessions above each season's league average. Higher is better. Career ranks and average league finishes work the other way: lower is better.
#199Career Impact RankPeak-weighted regular-season rank#124Leads
+3.9Peak box impactEra-adjusted points per 100 possessions above league average · higher is better+4.7Leads
+2.7Best 5 average box impactEra-adjusted points per 100 possessions above league average · higher is better+3.6Leads
17.3Best 3 average finishAverage league place · lower is better6.7Leads
+2,165 ptsLeadsPoints above replacementCumulative regular-season value+1,328 pts
1Top-10 impact seasons2Leads
Career Impact Rank places Tom Boerwinkle #124 and Dan Issel #199. It combines league finishes across each player's best three, five, and ten regular seasons, giving the most weight to the best three. Dan Issel had more total career value.
Regular season only. Impact figures are estimates; small gaps are not exact. Playoffs, awards and titles do not determine the verdict.
Career Impact RankSee exactly how both rankings are calculatedDan Issel26.327 · No. 199Tom Boerwinkle16.893 · No. 124
Only the three league-finish windows below determine Career Impact Rank. Career Value and peak impact are separate measures; neither adds points to this calculation. Lower composite scores rank higher.
Dan Issel
26.327 composite · No. 199 all-time
| Window and finishes used | Average finish | Weight | Contribution |
|---|---|---|---|
| Best 3No. 91979–80Recorded box inputsIncludes bounded historical defense estimateNo. 211976–77Recorded box inputsIncludes bounded historical defense estimateNo. 221977–78Recorded box inputsIncludes bounded historical defense estimate | 17.333 | 50% | 8.667 |
| Best 5No. 91979–80Recorded box inputsIncludes bounded historical defense estimateNo. 211976–77Recorded box inputsIncludes bounded historical defense estimateNo. 221977–78Recorded box inputsIncludes bounded historical defense estimateNo. 281978–79Recorded box inputsIncludes bounded historical defense estimateNo. 291980–81Recorded box inputsIncludes bounded historical defense estimate | 21.800 | 30% | 6.540 |
| Best 10No. 91979–80Recorded box inputsIncludes bounded historical defense estimateNo. 211976–77Recorded box inputsIncludes bounded historical defense estimateNo. 221977–78Recorded box inputsIncludes bounded historical defense estimateNo. 281978–79Recorded box inputsIncludes bounded historical defense estimateNo. 291980–81Recorded box inputsIncludes bounded historical defense estimateNo. 341983–84Recorded box inputsIncludes bounded historical defense estimateNo. 351982–83Recorded box inputsIncludes bounded historical defense estimateNo. 391981–82Recorded box inputsIncludes bounded historical defense estimateNo. 891984–85Recorded box inputsIncludes bounded historical defense estimate1 open slot × No. 250 | 55.600 | 20% | 11.120 |
8.667 + 6.540 + 11.120= 26.327
Open-season rule: every unfilled slot uses No. 250, this player's stored replacement finish.
Tom Boerwinkle
16.893 composite · No. 124 all-time
| Window and finishes used | Average finish | Weight | Contribution |
|---|---|---|---|
| Best 3No. 31970–71Reconstructed historical estimateIncludes bounded historical defense estimateNo. 61974–75Recorded box inputsIncludes bounded historical defense estimateNo. 111971–72Reconstructed historical estimateIncludes bounded historical defense estimate | 6.667 | 50% | 3.333 |
| Best 5No. 31970–71Reconstructed historical estimateIncludes bounded historical defense estimateNo. 61974–75Recorded box inputsIncludes bounded historical defense estimateNo. 111971–72Reconstructed historical estimateIncludes bounded historical defense estimateNo. 111975–76Recorded box inputsIncludes bounded historical defense estimateNo. 141973–74Recorded box inputsIncludes bounded historical defense estimate | 9.000 | 30% | 2.700 |
| Best 10No. 31970–71Reconstructed historical estimateIncludes bounded historical defense estimateNo. 61974–75Recorded box inputsIncludes bounded historical defense estimateNo. 111971–72Reconstructed historical estimateIncludes bounded historical defense estimateNo. 111975–76Recorded box inputsIncludes bounded historical defense estimateNo. 141973–74Recorded box inputsIncludes bounded historical defense estimateNo. 271969–70Reconstructed historical estimateIncludes bounded historical defense estimateNo. 391976–77Recorded box inputsIncludes bounded historical defense estimateNo. 851968–69Reconstructed historical estimateIncludes bounded historical defense estimate2 open slots × No. 173.5 | 54.300 | 20% | 10.860 |
3.333 + 2.700 + 10.860= 16.893
Open-season rule: every unfilled slot uses No. 173.5, this player's stored replacement finish.
Averages, contributions, and totals are displayed to three decimal places. The ranking calculation keeps full source precision. Read the full method →
Full comparison · Career comparison
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?
Career Impact Rank compares entire regular-season careers across NBA history. It combines average league places across the best three, five, and ten seasons, weighted 50%, 30%, and 20%. A lower rank or average place is better.
| Metric | Dan Issel | Tom Boerwinkle |
|---|---|---|
| Career Impact RankPeak-weighted regular-season rank | #199 | #124Better result for this metric. |
| Best 3 average finishAverage league place · lower is better | 17.3 | 6.7Better result for this metric. |
| Best 5 average finishAverage league place · lower is better | 21.8 | 9.0Better result for this metric. |
| Best 10 average finishAverage league place · lower is better | 55.6 | 54.3Better result for this metric. |
Show more stats: Impact
| Metric | Dan Issel | Tom Boerwinkle |
|---|---|---|
| Points-above-replacement rankAll-time rank in estimated regular-season points above replacement | #156Better result for this metric. | #330 |
| Peak box impactEra-adjusted points per 100 possessions above league average · higher is better | +3.9 | +4.7Better result for this metric. |
| Best 3 average box impactEra-adjusted points per 100 possessions above league average · higher is better | +3.1 | +4.2Better result for this metric. |
| Best 5 average box impactEra-adjusted points per 100 possessions above league average · higher is better | +2.7 | +3.6Better result for this metric. |
| Best 10 average box impactEra-adjusted points per 100 possessions above league average · higher is better | Unavailable | Unavailable |
| Points above replacementRegular season · fixed -2.0 replacement baseline · higher is better | +2,165 ptsBetter result for this metric. | +1,328 pts |
| Seasons ranked No. 1 | 0 | 0 |
| Top-five impact seasons | 0 | 1Better result for this metric. |
| Top-ten impact seasons | 1 | 2Better result for this metric. |
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.
| Metric | Dan Issel | Tom Boerwinkle |
|---|---|---|
| Games | 718 | 635 |
| Minutes | 22,342 | 14,387 |
3 · Individual skills
Where does each player have an advantage?
These are each player's averages across up to ten best seasons. Career Impact Rank gives the Best 3, Best 5, and Best 10 average league finishes 50%, 30%, and 20% window weights, giving the most weight to the highest peak. The model accounts for position, role, pace, playing time, and team results. 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.
| Metric | Dan Issel | Tom Boerwinkle |
|---|---|---|
| True shooting percentage | 57.2%Better result for this metric. | 49.1% |
| True shootingAverage across the best impact seasons selected for the model input profile | 57.0%Better result for this metric. | 50.3% |
Show more stats: Shooting
| Metric | Dan Issel | Tom Boerwinkle |
|---|---|---|
| Field-goal percentage | 50.6%Better result for this metric. | 45.3% |
| Three-point percentage | 25.3% | Unavailable |
| Free-throw percentage | 79.7%Better result for this metric. | 67.5% |
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.
| Metric | Dan Issel | Tom Boerwinkle |
|---|---|---|
| Assist rateAverage across the best impact seasons selected for the model input profile | 11.6% | 20.7%Better result for this metric. |
| Assists per game | 2.5 | 3.2Better result for this metric. |
Show more stats: Passing
| Metric | Dan Issel | Tom Boerwinkle |
|---|---|---|
| Turnover rateAverage across the best impact seasons selected for the model input profile | 10.1% | Unavailable |
Rebounding
Rebound rate is the share of available rebounds collected while on court.
| Metric | Dan Issel | Tom Boerwinkle |
|---|---|---|
| Rebound rateAverage across the best impact seasons selected for the model input profile | 13.1% | 18.9%Better result for this metric. |
| Rebounds per game | 7.9 | 9.0Better result for this metric. |
Defense
Steals and blocks describe only part of defense. They do not capture every stop, rotation, or matchup.
| Metric | Dan Issel | Tom Boerwinkle |
|---|---|---|
| Steal rateAverage across the best impact seasons selected for the model input profile | 1.4%Better result for this metric. | 1.1% |
Show more stats: Defense
| Metric | Dan Issel | Tom Boerwinkle |
|---|---|---|
| Block rateAverage across the best impact seasons selected for the model input profile | 0.9% | 1.6%Better result for this metric. |
Scoring
Points per game describe scoring volume, not overall impact.
| Metric | Dan Issel | Tom Boerwinkle |
|---|---|---|
| Points per game | 20.4Better result for this metric. | 7.2 |
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.
Regular Season Impact
Tom Boerwinkle ranks higher in career impact.
Dan IsselMetricTom Boerwinkle
#199Career Impact RankPeak-weighted regular-season rank#124Leads
+3.9Peak box impactEra-adjusted points per 100 possessions above league average · higher is better+4.7Leads
+2.7Best 5 average box impactEra-adjusted points per 100 possessions above league average · higher is better+3.6Leads
+2,165 ptsLeadsPoints above replacementRegular season · fixed -2.0 replacement baseline · higher is better+1,328 pts
This is the ranking result. It uses regular-season impact only. Team records, playoffs, and awards do not change it.
Team Success
The advantages are split across the available measures.
Dan IsselMetricTom Boerwinkle
393Listed-team regular-season wins740Leads
53.3%LeadsListed-team winning percentage0.5%
250-win team seasons8Leads
060-win team seasons8Leads
7Playoff team seasons7
Context only. Not included in Career Impact Rank. Final records for every listed team-season. A traded season can include more than one team.
Playoff Résumé
Dan Issel leads every available measure below.
Dan IsselMetricTom Boerwinkle
7Playoff appearances7
53LeadsPlayoff games35
23LeadsTeam playoff wins19
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.
Awards
No recorded measure separates these careers.
Dan IsselMetricTom Boerwinkle
1All-StarNot available
0MVPNot available
0All-NBANot available
0All-DefenseNot available
0DPOYNot available
0Rookie of the YearNot available
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.
Career Shape Explorer
How the careers developed
Follow every regular season by NBA experience or age. This view describes the path; it does not create another verdict.
Dan IsselTom BoerwinklePeak seasonHistorical source qualification
Estimated points per 100 possessions above that season's league average
Striped bars mark seasons with fewer than 40 games. A dashed mark means that player had no season at the aligned point.
Season-by-season evidenceRead both careers at the same stage
Every observed season keeps its age, era-centered impact estimate, league rank when qualified, career-stage label, and exact evidence link. A missing career point stays missing.
Dan IsselNBA seasonTom Boerwinkle
Season 1
Season 2
Season 3
Season 4
Season 5
Season 6
Season 7
Season 8
Season 9
Observed values come from the accepted season comparison record. Historical source qualifications stay attached to affected seasons. Missing means no NBA season exists at that aligned point; it is never interpolated. Missing is not the same as estimated.