The most efficient big non-production user on GPGrid who used more than 100,000 hours since October 1, 2016 was Konstantinos Vellidis with 98.7% efficiency.
| Experiment | User | Wall Time[Hours] | Efficiency[%] |
| MU2E | Konstantinos Vellidis |
223,202 |
98.7% |
| MU2E | Andrei Gaponenko |
215,731 |
98.5% |
| MINERVA | Leonidas Aliaga Soplin |
195,286 |
98.4% |
| MU2E | Ralf Ehrlich |
1,838,030 |
98% |
| MINERVA | Benjamin Messerly |
176,768 |
97.8% |
| MARS | Sergei Striganov |
289,998 |
96.9% |
| NOVA | Robert Hatcher |
110,231 |
96.7% |
| MARS | Diane Reitzner |
221,340 |
96.3% |
| NOVA | Ranjan Dharmapalan |
105,014 |
96.1% |
| LARIAT | Brandon Soubasis |
284,794 |
96.1% |
| MINOS | Adam Schreckenberger |
142,396 |
96% |
| MU2E | Zhengyun You |
547,144 |
95.5% |
| MINOS | Jacob Todd |
169,156 |
95.1% |
| MARS | Igor Tropin |
334,364 |
95% |
| NOVA | Stefano Germani |
500,109 |
94.3% |
| NOVA | Siva Kasetti |
137,952 |
94% |
| NOVA | Biao Wang |
126,429 |
93.4% |
| MARS | Vitaly Pronskikh |
193,215 |
91.7% |
| MARS | Nikolai Mokhov |
192,886 |
90.9% |
–Tanya Levshina