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USTA Training Center Ball/Court Interaction
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Summary of Results
| Ball/Spin/Court | Velocity In |
Velocity Out | Angle In |
Angle Out | Rebound Height |
X Distance |
| Grass - US Open | Velocity In | Velocity Out
| Angle In | Angle Out | Rebound Height |
X Distance |
| Flat | 35 | 18
| 25 | 29 | 26 | 87 |
| Low Top | 38 | 21
| 25 | 29 | 33 | 114 |
| Medium Top | 39 | 24
| 23 | 23 | 30 | 128 |
| High Top | 39 | 28
| 25 | 19 | 26 | 144 |
| Medium Under | 36 | 18
| 22 | 24 | 20 | 83 |
| Heavy Under | 33 | 16
| 23 | 29 | 23 | 77 |
| Grass - Wimbleton | Velocity In | Velocity Out
| Angle In | Angle Out | Rebound Height |
X Distance |
| Flat | 35 | 18
| 24 | 29 | 28 | 94 |
| Low Top | 37 | 22
| 24 | 26 | 32 | 123 |
| Medium Top | 39 | 26
| 23 | 22 | 31 | 140 |
| High Top | 41 | 30
| 23 | 17 | 25 | 148 |
| Medium Under | 35 | 17
| 23 | 26 | 21 | 79 |
| Heavy Under | 33 | 16
| 23 | 26 | 19 | 72 |
| Green - US Open | Velocity In | Velocity Out
| Angle In | Angle Out | Rebound Height |
X Distance |
| Flat | 33 | 20
| 27 | 38 | 51 | 122 |
| Low Top | 34 | 23
| 28 | 36 | 58 | 148 |
| Medium Top | -- | --
| -- | -- | -- | -- |
| High Top | 37 | 31
| 28 | 28 | 61 | 209 |
| Medium Under | 32 | 17
| 25 | 40 | 44 | 98 |
| Heavy Under | 23 | 13
| 21 | 31 | 24 | 72 |
| Green - Wilson Clay | Velocity In | Velocity Out
| Angle In | Angle Out | Rebound Height |
X Distance |
| Flat | 34 | 21
| 28 | 41 | 60 | 126 |
| Low Top | 33 | 23
| 29 | 36 | 58 | 143 |
| Medium Top | 36 | 27
| 25 | 30 | 58 | 186 |
| High Top | 37 | 32
| 29 | 29 | 66 | 213 |
| Medium Under | 31 | 16
| 26 | 42 | 44 | 92 |
| Heavy Under | 33 | 19
| 21 | 31 | 34 | 104 |
| Red - US Open | Velocity In | Velocity Out
| Angle In | Angle Out | Rebound Height |
X Distance |
| Flat | 29 | 18
| 27 | 38 | 45 | 104 |
| Low Top | 31 | 21
| 26 | 35 | 51 | 130 |
| Medium Top | 35 | 26
| 23 | 29 | 49 | 146 |
| High Top | 36 | 30
| 25 | 25 | 49 | 186 |
| Medium Under | 31 | 17
| 24 | 39 | 41 | 95 |
| Heavy Under | 31 | 18
| 21 | 31 | 31 | 99 |
| Red - Roland Garros | Velocity In | Velocity Out
| Angle In | Angle Out | Rebound Height |
X Distance |
| Flat | 31 | 19
| 25 | 36 | 45 | 109 |
| Low Top | 32 | 21
| 26 | 33 | 49 | 136 |
| Medium Top | -- | --
| -- | -- | -- | -- |
| High Top | 35 | 29
| 26 | 27 | 51 | 176 |
| Medium Under | 28 | 15
| 25 | 39 | 37 | 78 |
| Heavy Under | 30 | 17
| 23 | 34 | 33 | 95 |
Hard Court - US Open | Velocity In | Velocity Out
| Angle In | Angle Out | Rebound Height |
X Distance |
| Flat | 32 | 20
| 24 | 35 | 45 | 116 |
| Low Top | 35 | 24
| 27 | 33 | 57 | 163 |
| Medium Top | 37 | 28
| 22 | 28 | 53 | 184 |
| High Top | 35 | 31
| 26 | 25 | 53 | 204 |
| Medium Under | 29 | 15
| 25 | 42 | 39 | 81 |
| Heavy Under | 28 | 16
| 21 | 31 | 26 | 81 |
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Last modified: Tue Dec 01 15:36:31 PST 1998
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Rights Reserved.
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