College Basketball · 2026-27 · Preseason
Joey Chammaa
San José State · Guard · Junior · 5-11 · #20
Transfer from Arkansas State
- #221 guard in the country
- #233 in the transfer portal
- #126 mid-major player
Projected role · 2026-27
Projected starter (about 17 minutes a game) at San José State, as a secondary scorer: a role like the one he had at Arkansas State (16.9 min).
- Projected minutes
- 17
- Spot in the rotation
- #3
From the Statboy preseason model. It updates once games start.
▸What is impact?
Impact is how many points per game a player adds to his team. 0 is an average player, so a plus number means he's better than average and a minus number means he's below. It's Statboy's own number, based on everything he does on the court and the level he played against.
Last season: the basics
2025-26 at Arkansas State: 21 games, 1 starts, 16.9 minutes a game.
MM # = his rank among the 841 mid-major guardson this season's rosters (300+ minutes last season).
- Points per game9.957thMM #288
- Rebounds per game2.231stMM #524
- Assists per game1.853rdMM #342
- Steals per game0.957thMM #289
- Blocks per game0.011thMM #655
- Turnovers per game1.536thMM #546
- Field goal %42.3%(44-104)54thMM #366
- 3-point %32.7%(18-55)42ndMM #456
- Free throw %81.5%(101-124)72ndMM #205
Last season: advanced
Percentiles compare him with every Division I guard who played 300+ minutes.
MM # = his rank among the 841 mid-major guardson this season's rosters (300+ minutes last season).
- Usage rate25.0%style
Share of his team's possessions he ends (shot, free throws or turnover) while on the floor
- Offensive rating127.495thMM #31
Points he produces per 100 possessions he uses
- Defensive rating105.774thMM #209
Points allowed per 100 possessions while he's on the floor (lower is better)
- True shooting %65.3%98thMM #18
Scoring efficiency counting 3s and free throws
- Effective FG %51.0%56thMM #335
Field goal % with 3s worth 1.5 times a 2
- Assist-to-turnover1.1631stMM #549
Assists for every turnover
- Offensive rebound %28.3%76thMM #221
Share of his team's missed shots he rebounds while on the floor
- Free-throw rate119.2%99thMM #1
Free throws attempted per 100 field goal attempts
- Win shares per 40.21599thMM #5
Wins he created per 40 minutes played
Players like Joey Chammaa
The closest matches among every guard in the country: all of last season's stats compared on the same scale, plus projected impact.
Returning
+0.82 impact · 14 pts · 2.7 reb · 2.5 ast
CompareReturning
+0.69 impact · 10.8 pts · 2 reb · 2 ast
CompareTransfer from Sam Houston
+0.32 impact · 11.4 pts · 2.2 reb · 2.5 ast
CompareTransfer from Butler
+0.78 impact · 17.1 pts · 2.2 reb · 2.6 ast
CompareReturning
+0.41 impact · 12.2 pts · 2 reb · 2.3 ast
CompareTransfer from UNC Wilmington
+0.47 impact · 10.3 pts · 2.8 reb · 2.2 ast
Compare
San José State teammates
Robert Vaihola#124 · F · Transfer from Minnesota- Mookie Cook#863 · F · Transfer from San Francisco
- Zine Eddine Bedri#930 · F · Transfer from Columbia
- Mekhi Mason#957 · G · Transfer from Wake Forest
- KJ Martin Jr.#1307 · F · Transfer from Tulsa
- Pasha Goodarzi#2049 · G · Returning
- JaVaughn Hannah#2975 · G · Returning
- Rokiem Green#3283 · G · Freshman · #273 recruit
Impact = how many points per game he adds to his team when he plays. 0 is an average player (Statboy's own number).