Table 4 Contribution quality evaluation system of each stroke technique and tactics indicator in table tennis matches
Indicator | The formula of scoring rate | The formula of utilization rate | ||
|---|---|---|---|---|
Serve round | Serve | Serve points/Total serve points × 100% | Serve | Total serve points/Number of serve rounds × 100% |
The third stroke | Points in the third stroke/Total points in the third stroke × 100% | The third stroke | Total points in the third stroke/Number of serve rounds × 100% | |
The fifth stroke | Points in the fifth stroke/Total points in the fifth stroke × 100% | The fifth stroke | Total points in the fifth stroke/Number of serve rounds × 100% | |
The seventh stroke and later | Points in the seventh stroke/Total points in the seventh stroke × 100% | The seventh stroke and later | Total points in the seventh stroke/Number of serve rounds × 100% | |
Receive round | Receive | Receive points/Total receive points × 100% | Receive | Total Receive points/Number of receive rounds × 100% |
The fourth stroke | Points in the fourth stoke/Total points in the fourth stroke × 100% | The fourth stroke | Total points in the fourth stroke/Number of receive rounds × 100% | |
The sixth stroke | Points in the sixth stoke/Total points in the sixth stroke × 100% | The sixth stroke | Total points in the sixth stroke/Number of receive rounds × 100% | |
The eighth stroke and later | Points in the eighth stoke/Total points in the eighth stroke × 100% | The eighth stroke | Total points in the eighth stroke/Number of receive rounds × 100% | |
Contribution quality | Score rate × Utilization rate [6] | |||