Re: [女娃] 戴娃的發球

看板ALL-RUSSIANS作者ouch (ultimate)時間19年前 (2005/06/21 02:29)推噓2(2推 0噓 0→)

留言2則, 2人參與討論串3/9 (看更多)

來比較一下戴娃的發球到底有沒有進步? 下面第一個數據是今年澳網對上韓娃的統計資料(這時戴娃開始在改進她二發) Dementieva (RUS) 1st Serve % 75 of 112 = 67 % Aces 1 Double Faults 5 Net Approaches 10 of 15 = 67 % Fastest Serve 170 km/h Average 1st Serve Speed 144 km/h Average 2nd Serve Speed 117 km/h 嗯,這時她的二發和一發還是有不小差距,但已經有進步了 (可惜沒能找到她去年和卡姊那一場,二發均速搞不好不到100km/h ..XD) 再來,今天這一場比賽,雖然草地應該是平均會快一點,但對戴娃這種發球類型的球種,在各種場地的發球速度差別並不大。我們可以看到很大幅度的改善... Match Summary Benesova (CZE) Dementieva (RUS) 1st Serve % 30 of 43 = 70 % 39 of 58 = 67 % Aces 0 1 Double Faults 1 8 Unforced Errors 25 18 Winning % on 1st Serve 15 of 30 = 50 % 29 of 39 = 74 % Winning % on 2nd Serve 4 of 13 = 31 % 6 of 19 = 32 % Winners (Including Service) 10 15 Receiving Points Won 23 of 50 = 46 % 24 of 42 = 57 % Break Point Conversions 2 of 7 = 29 % 5 of 8 = 63 % Net Approaches 2 of 3 = 67 % 2 of 4 = 50 % Total Points Won 42 59 Fastest Serve 99 MPH 104 MPH =167km/h Average 1st Serve Speed 89 MPH 93 MPH =150km/h Average 2nd Serve Speed 78 MPH 84 MPH =135km/h 重點看球速,其實最快球速還比澳網那場慢一點, 但一發的均速從144km/h上升到150km/h, 二發更是突飛猛進,從117km/h變成135km/h, 這是相當重大的改善! 雖然雙誤還是有8個之多, 但如果她的二發威力因為球速提升,這8個其實並不算什麼,只要不要連續DF 以她的底線實力,其實不算太棘手... (當然如果進球率更高是更好的,也發現她球速提升並沒有使一發命中率下降, 真是可喜可賀!) -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 203.203.34.44