Efficiency & Role
EPA = expected points added per play. Compared with every FBS QB who qualifies
Advanced
Computed from every play, garbage time excluded. FBS rank among players with enough volume
| Passing | Value | FBS rank |
|---|---|---|
| Dropbacks | 98 | — |
| Success rate | 38.8% | 124th / 181 |
| Explosive pass rate | 11.6% | 57th / 181 |
| Deep-throw rate | 15.8% | 46th / 181 |
| Sack rate | 3.1% | 36th / 181 |
| Interception rate | 1.1% | — |
| 3rd-down conversion | 46.7% | 25th / 181 |
| Rushing | Value | FBS rank |
|---|---|---|
| Carries | 18 | — |
| Success rate | 27.8% | — |
| Explosive run rate | 0.0% | — |
| Stuffed at the line | 38.9% | — |
| First downs | 3 | — |
| Red-zone carries | 6 | — |
| Goal-line carries | 4 | — |
Charting
Where Dieffenbach's plays went: throw and catch spots, air yards and yards after the catch, read from the play-by-play
Where he throws97 throws charted
Run direction16 carries
Game Log
Ty Dieffenbach's box score, game by game, from ESPN, with a 0–10 game score for each (hover it for how it works). Click a result for the full game
| Passing | Rushing | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wk | Opponent | Result | Game score | Cmp | Att | Pct | Yds | Y/A | TD | INT | Car | Yds | Y/C | TD | Long |
| 1 | @ California | W 45–24 | — | no stats recorded | |||||||||||
| 2 |  San Diego State | W 28–10 | — | no stats recorded | |||||||||||
| 3 |  Purdue | W 52–38 | — | no stats recorded | |||||||||||
| 4 | @ Maryland | W 54–3 | — | no stats recorded | |||||||||||
| 6 | @ Oregon | W 17–15 | — | 3 | 6 | 50.0 | 43 | 7.2 | 1 | 0 | 4 | -15 | -3.8 | 0 | 6 |
| 7 |  Wisconsin | W 17–7 | 5.5 | 22 | 33 | 66.7 | 264 | 8.0 | 0 | 1 | 6 | -12 | -2.0 | 0 | 3 |
| 8 |  Michigan State | W 28–10 | 6.1 | 18 | 31 | 58.1 | 198 | 6.4 | 1 | 0 | 5 | 17 | 3.4 | 0 | 8 |
| 9 |  Nevada | W 27–0 | 6.1 | 16 | 30 | 53.3 | 178 | 5.9 | 1 | 0 | 4 | 8 | 2.0 | 1 | 5 |
| 2026 · 4 games | 5.9 | 59 | 100 | 59.0 | 683 | 6.8 | 3 | 1 | 19 | -2 | -0.1 | 1 | 8 | ||
2026 Season Stats
FBS rank among qualifying players
| Passing | 2026 | FBS rank |
|---|---|---|
| Completions | 59 | — |
| Attempts | 100 | — |
| Completion % | 59.0% | 116th / 146 |
| Yards | 683 | 146th / 276 |
| Yards / att. | 6.8 | 112th / 146 |
| Touchdowns | 3 | 154th / 276 |
| Interceptions | 1 | — |
| Rushing | 2026 | FBS rank |
|---|---|---|
| Carries | 19 | — |
| Yards | -2 | 1393rd / 1519 |
| Yards / carry | -0.1 | — |
| Touchdowns | 1 | 411th / 683 |
| Long | 8 | — |
Snaps by Game
Estimated snaps: every offensive play credited to the QB running the offense. Close to a true snap count
| Game | Start | Team plays | Est. snaps | Plays involved | Penalties | Snap share |
|---|---|---|---|---|---|---|
| Wk 6 · Oregon | — | 70 | 28 | 10 | 1 | 40% |
| Wk 7 · Wisconsin | — | 71 | 68 | 39 | · | 96% |
| Wk 8 · Michigan State | — | 78 | 78 | 38 | · | 100% |
| Wk 9 · Nevada | ✓ QB | 59 | 59 | 35 | · | 100% |
| Season | 1 GS | 541 | 233 | 122 | 1 | 43% |
Position Room
5 QBs on the UCLA roster, ordered by att
| # | Player | Pos | Class | Att | Yds | TD | INT | EPA/play |
|---|---|---|---|---|---|---|---|---|
| 9 | Nico Iamaleava | QB | SR | 116 | 982 | 4 | 4 | +0.06 |
| 14 | Ty Dieffenbach | QB | SR | 100 | 683 | 3 | 1 | +0.16 |
| 10 | Madden Iamaleava | QB | SO | 1 | 0 | 0 | 0 | -0.43 |
| 17 | Colton Gumino | QB | SO | — | — | — | — | — |
| 18 | DJ Bordeaux | QB | FR | — | — | — | — | — |
Stats, EPA and usage come from CollegeFootballData.com and refresh daily. FBS ranks only count players with enough volume for the stat to mean something. Qualifying for EPA takes 12+ plays per team game. UCLA depth chart →