| Flow Station | Calibration | Validation | Calibration | Validation | ||||||||
| NSE | R2 | RSR | PBIAS | NSE | R2 | RSR | PBIAS | Ob-flow (m3/s) | Sim-flow (m3/s) | Ob-flow (m3/s) | Sim-flow (m3/s) | |
| Makalala | 0.56 | 0.57 | 0.66 | −5.9 | 0.50 | 0.51 | 0.71 | 8.5 | 4.40 | 4.04 | 4.25 | 3.89 |
| Ihimbu | 0.58 | 0.60 | 0.65 | 9.1 | 0.44 | 0.55 | 0.75 | 21.6 | 16.80 | 15.26 | 16.06 | 14.38 |
| Mawande | 0.64 | 0.65 | 0.60 | −15.1 | 0.64 | 0.65 | 0.60 | −8.6 | 32.50 | 28.23 | 28.46 | 26.20 |