Mason Costello
Team: Appalachian State
Position: G
Career Averages
ESPN · NCAAM · completed source game rows, all recorded phases (including special games). Coverage reflects stored source games. Source phase breakdown: 2 regular season. These are not regular-season totals.
| GP | MPG | PPG | RPG | APG | SPG | BPG | TO | FGA | Numbers | FG% | 3P% | FT% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 10.5 | 7.5 | 2.0 | 0.5 | 1.0 | 0.0 | 0.5 | 5.5 | 5.0 | 45.5% | 28.6% | 100.0% |
Plus/minus sample — 2026-2027: 1 games, 5.6 minutes, 11.1 possessions. Other models may cover a different set of games.
Advanced Stats
Model outputs use a separate game sample from the counting statistics. Model output season: 2026-2027. Plus/minus scope: 1 games.
| RAPM | Rank | Minutes | Possessions | Model PM | Model PM/G | Model PM/40 |
|---|---|---|---|---|---|---|
| -0.70 | 2358 | 5 | 11 | -4 | -4.0 | -28.7 |
RAPM = Regularized Adjusted Plus-Minus. Current fits use points per 40 minutes above average; historical artifact units are unverified.
Model Outputs — 2026-2027
CatalogOutput is shown as model rating with league rank in parentheses when available.
| Model | Output | Notes |
|---|---|---|
| Adjusted Plus/Minus Adjusted Plus/Minus Unregularized adjusted plus-minus per 40 minutes. More → | +3.41 (#1550) | - |
| RAPM Overall RAPM Overall Single-parameter regularized adjusted plus-minus estimate. More → | -0.70 (#2358) | SE 5.75 | Poss 11 |
| RAPM Off/Def RAPM Off/Def Simultaneous offensive and defensive RAPM decomposition. More → | -0.85 (#2687) | Off -0.47 | Def -0.38 |
| Plus/Minus Rate Plus/Minus Rate Raw plus/minus rate baseline per 100 possessions. More → | -36.14 (#3585) | PM/G -4.0 | PM/40 -28.7 |
Shot Chart — 2026-2027
5/11 FG (45.5%), 12 points from the field · ESPN shot locations · compared with the 2025-2026 league average (latest season on file)
| Zone | FGM | FGA | FG% | League FG% | +/- | % of FGA |
|---|---|---|---|---|---|---|
| Restricted area | 1 | 1 | 100.0 | 64.5 | +35.5 | 9.1 |
| Paint (non-RA) | 1 | 2 | 50.0 | 45.2 | +4.8 | 18.2 |
| Mid-range left | 1 | 1 | 100.0 | 36.6 | +63.4 | 9.1 |
| Mid-range center | 0 | 0 | - | 38.6 | - | 0.0 |
| Mid-range right | 0 | 0 | - | 37.4 | - | 0.0 |
| Left corner 3 | 0 | 1 | 0.0 | 36.5 | -36.5 | 9.1 |
| Right corner 3 | 0 | 0 | - | 36.9 | - | 0.0 |
| Above-break 3 left | 2 | 3 | 66.7 | 34.1 | +32.6 | 27.3 |
| Above-break 3 center | 0 | 1 | 0.0 | 32.8 | -32.8 | 9.1 |
| Above-break 3 right | 0 | 2 | 0.0 | 33.6 | -33.6 | 18.2 |
Career Stats
ESPN · NCAAM · completed source game rows, all recorded phases (including special games). Coverage reflects stored source games. Source phase breakdown: 2 regular season. These are not regular-season totals. Other career leagues are available through the league links above.
| Season | League | Team | GP | MIN | PTS | REB | AST | STL | BLK | TO | FGA | Numbers | FG% | 3P% | FT% | TS% | eFG% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-2027 | NCAAM | Appalachian State | 2 | 10.5 | 7.5 | 2.0 | 0.5 | 1.0 | 0.0 | 0.5 | 5.5 | 5.0 | 45.5% | 28.6% | 100.0% | 60.9 | 54.5 |
Advanced: Numbers = PTS+REB+AST+STL+BLK-TO-FGA, TS% = True Shooting, eFG% = Effective FG
RAPM GS requires a reviewed game-score run and a qualified player and game match. A dash means the score is unavailable.
Game Log
ESPN · NCAAM · completed source game rows, all recorded phases (including special games). Coverage reflects stored source games. Source phase breakdown: 2 regular season. These are not regular-season totals.
| Date | Vs/At | Opponent | Result | Score | MIN | FG | 3PT | FT | REB | AST | STL | BLK | TO | PTS | Numbers | RAPM GS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-11-04 | vs | Christendom Crusader | W | 108-43 | 16 | 5-9 | 2-5 | 3-3 | 3 | 1 | 2 | 0 | 0 | 15 | 12.0 | - |
| 2026-11-02 | vs | Merrimack Warriors | W | 63-49 | 5 | 0-2 | 0-2 | 0-0 | 1 | 0 | 0 | 0 | 1 | 0 | -2.0 | -3.2 |