Bob Donham
1950–51 to 1953–54 · 4 seasons
NBA player comparison
Bob Donham vs. Dave Twardzik: Career comparison
Regular-season verdict
Bob Donham ranks higher in career impact
Dave Twardzik
1976–77 to 1979–80 · 4 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.
#321LeadsCareer Impact RankPeak-weighted regular-season rank#1006
+1.1Peak box impactEra-adjusted points per 100 possessions above league average · higher is better+2.3Leads
+0.6Average box impact to dateEra-adjusted points per 100 possessions above league average · higher is better+0.7Leads
#21LeadsBest league finish#28
+343 ptsPoints above replacementCumulative regular-season value+416 ptsLeads
273Games280Leads
Career Impact Rank places Bob Donham #321 and Dave Twardzik #1006. It combines league finishes across each player's best three, five, and ten regular seasons, giving the most weight to the best three. Dave Twardzik had the higher single-season impact estimate and 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 calculatedBob Donham40.157 · No. 321Dave Twardzik95.263 · No. 1,006
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.
Bob Donham
40.157 composite · No. 321 all-time
| Window and finishes used | Average finish | Weight | Contribution |
|---|---|---|---|
| Best 3No. 211951–52Reconstructed historical estimateIncludes bounded historical defense estimateNo. 301950–51Reconstructed historical estimateNo. 311952–53Reconstructed historical estimateIncludes bounded historical defense estimate | 27.333 | 50% | 13.667 |
| Best 5No. 211951–52Reconstructed historical estimateIncludes bounded historical defense estimateNo. 301950–51Reconstructed historical estimateNo. 311952–53Reconstructed historical estimateIncludes bounded historical defense estimateNo. 321953–54Reconstructed historical estimateIncludes bounded historical defense estimate1 open slot × No. 96.5 | 42.100 | 30% | 12.630 |
| Best 10No. 211951–52Reconstructed historical estimateIncludes bounded historical defense estimateNo. 301950–51Reconstructed historical estimateNo. 311952–53Reconstructed historical estimateIncludes bounded historical defense estimateNo. 321953–54Reconstructed historical estimateIncludes bounded historical defense estimate6 open slots × No. 96.5 | 69.300 | 20% | 13.860 |
13.667 + 12.630 + 13.860= 40.157
Open-season rule: every unfilled slot uses No. 96.5, this player's stored replacement finish.
Dave Twardzik
95.263 composite · No. 1,006 all-time
| Window and finishes used | Average finish | Weight | Contribution |
|---|---|---|---|
| Best 3No. 281976–77Recorded box inputsIncludes bounded historical defense estimateNo. 701977–78Recorded box inputsIncludes bounded historical defense estimateNo. 811978–79Recorded box inputsIncludes bounded historical defense estimate | 59.667 | 50% | 29.833 |
| Best 5No. 281976–77Recorded box inputsIncludes bounded historical defense estimateNo. 701977–78Recorded box inputsIncludes bounded historical defense estimateNo. 811978–79Recorded box inputsIncludes bounded historical defense estimateNo. 1091979–80Recorded box inputsIncludes bounded historical defense estimate1 open slot × No. 235.5 | 104.700 | 30% | 31.410 |
| Best 10No. 281976–77Recorded box inputsIncludes bounded historical defense estimateNo. 701977–78Recorded box inputsIncludes bounded historical defense estimateNo. 811978–79Recorded box inputsIncludes bounded historical defense estimateNo. 1091979–80Recorded box inputsIncludes bounded historical defense estimate6 open slots × No. 235.5 | 170.100 | 20% | 34.020 |
29.833 + 31.410 + 34.020= 95.263
Open-season rule: every unfilled slot uses No. 235.5, 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 | Bob Donham | Dave Twardzik |
|---|---|---|
| Career Impact RankPeak-weighted regular-season rank | #321Better result for this metric. | #1006 |
| Best 3 average finishAverage league place · lower is better | 27.3Better result for this metric. | 59.7 |
| Best 5 average finishAverage league place · lower is better | 42.1Better result for this metric. | 104.7 |
| Best 10 average finishAverage league place · lower is better | 69.3Better result for this metric. | 170.1 |
Show more stats: Impact
| Metric | Bob Donham | Dave Twardzik |
|---|---|---|
| Points-above-replacement rankAll-time rank in estimated regular-season points above replacement | #957 | #868Better result for this metric. |
| Peak box impactEra-adjusted points per 100 possessions above league average · higher is better | +1.1 | +2.3Better result for this metric. |
| Best 3 average box impactEra-adjusted points per 100 possessions above league average · higher is better | +0.8 | +1.0Better result for this metric. |
| Best 5 average box impactEra-adjusted points per 100 possessions above league average · higher is better | Unavailable | Unavailable |
| 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 | +343 pts | +416 ptsBetter result for this metric. |
| Seasons ranked No. 1 | 0 | 0 |
| Top-five impact seasons | 0 | 0 |
| Top-ten impact seasons | 0 | 0 |
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 | Bob Donham | Dave Twardzik |
|---|---|---|
| Games | 273 | 280 |
| Minutes | 6,377 | 6,921 |
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 | Bob Donham | Dave Twardzik |
|---|---|---|
| True shooting percentage | 50.3% | 64.0%Better result for this metric. |
| True shootingAverage across the best impact seasons selected for the model input profile | Unavailable | 63.8% |
Show more stats: Shooting
| Metric | Bob Donham | Dave Twardzik |
|---|---|---|
| Field-goal percentage | 48.0% | 55.2%Better result for this metric. |
| Three-point percentage | Unavailable | 57.1% |
| Free-throw percentage | 50.7% | 82.3%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.
| Metric | Bob Donham | Dave Twardzik |
|---|---|---|
| Assist rateAverage across the best impact seasons selected for the model input profile | Unavailable | 17.8% |
| Assists per game | 2.6 | 3.4Better result for this metric. |
Show more stats: Passing
| Metric | Bob Donham | Dave Twardzik |
|---|---|---|
| Turnover rateAverage across the best impact seasons selected for the model input profile | Unavailable | 21.4% |
Rebounding
Rebound rate is the share of available rebounds collected while on court.
| Metric | Bob Donham | Dave Twardzik |
|---|---|---|
| Rebound rateAverage across the best impact seasons selected for the model input profile | Unavailable | 4.7% |
| Rebounds per game | 3.9Better result for this metric. | 2.2 |
Defense
Steals and blocks describe only part of defense. They do not capture every stop, rotation, or matchup.
| Metric | Bob Donham | Dave Twardzik |
|---|---|---|
| Steal rateAverage across the best impact seasons selected for the model input profile | Unavailable | 2.6% |
Show more stats: Defense
| Metric | Bob Donham | Dave Twardzik |
|---|---|---|
| Block rateAverage across the best impact seasons selected for the model input profile | Unavailable | 0.1% |
Scoring
Points per game describe scoring volume, not overall impact.
| Metric | Bob Donham | Dave Twardzik |
|---|---|---|
| Points per game | 6.7 | 9.5Better result for this metric. |
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
Bob Donham ranks higher in career impact.
Bob DonhamMetricDave Twardzik
#321LeadsCareer Impact RankPeak-weighted regular-season rank#1006
+1.1Peak box impactEra-adjusted points per 100 possessions above league average · higher is better+2.3Leads
Not availableBest 5 average box impactEra-adjusted points per 100 possessions above league average · higher is betterNot available
+343 ptsPoints above replacementRegular season · fixed -2.0 replacement baseline · higher is better+416 ptsLeads
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.
Bob DonhamMetricDave Twardzik
166Listed-team regular-season wins190Leads
59.7%LeadsListed-team winning percentage57.9%
050-win team seasons1Leads
060-win team seasons0
4Playoff team seasons4
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
Dave Twardzik leads every available measure below.
Bob DonhamMetricDave Twardzik
4Playoff appearances4
17Playoff games25Leads
4Team playoff wins18Leads
0Finals appearances1Leads
0Championships1Leads
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.
Bob DonhamMetricDave Twardzik
Not availableAll-StarNot available
Not availableMVPNot available
Not availableAll-NBANot available
Not availableAll-DefenseNot available
Not availableDPOYNot available
Not availableRookie 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.
Bob DonhamDave TwardzikPeak seasonHistorical source qualification
Estimated points per 100 possessions above that season's league average
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.
Bob DonhamNBA seasonDave Twardzik
Season 1
Season 2
Season 3
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.