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- In baseball statistics, ground ball-fly ball ratio (denoted by G/F or GB/FB) is a measure of:
* Frequency of batted ground balls in play versus fly balls in play to denote what kind of contact a batter makes more frequently. Calculated as (total ground balls in play) / (total fly balls in play) ; and
* Frequency of ground balls allowed in play versus fly balls allowed in play to denote what kind of contact a pitcher surrenders more frequently to opposing batters. Calculated as (total ground balls in play surrendered) / (total fly balls in play surrendered). The related statistic of ground outs-fly outs ratio (denoted by GO/AO), is a measure of:
* Frequency of batted ground ball outs versus fly ball outs hit by the batter, calculated as (number of ground ball outs) / (number of fly ball outs).
* Frequency of batted ground ball outs versus fly ball outs thrown by the pitcher, calculated as (number of ground ball outs) / (number of fly ball outs). A statistic in baseball that compares the number of ground outs (ground ball hits that lead to an out for the batter) to air outs (fly balls that lead to an out for the batter), which determines the mix of fielded out types for both batters and pitchers. For each ground out (GO) and air out (AO), both the batter put out and the pitcher on the play receive either a GO or AO on their stat line, which is used in the calculation of the ratio. The St. Louis Cardinals have led Major League Baseball in team ground ball/fly ball ratio since 2006. Sinker, cutter, and curveball pitchers tend to produce more ground balls, while pitchers who rely on fastballs, sliders, and split-fingered fastballs tend to produce more fly balls. Roughly 10% of fly balls are home runs. Fly ball pitchers in large parks however, tend to allow less than 7%.
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- ゴロ/フライ比率（ゴロ/フライひりつ、GB/FB Ratio）は、セイバーメトリクスの指標の一つである。ゴロ（GB）の総数をフライ（FB）の総数で割り、ゴロとフライの比率を調べる。同じ数の場合は1となり、これより数値が大きくなるほどゴロの割合が高く、数値が小さくなって0に近付くほどフライの割合が高い投手である事が分かる。 (ja)
- 滾飛比（英語：Ground ball fly ball ratio），是一種棒球統計術語，投手和擊球員（打者）都適用。 對投手而言，是指此投手製造之出局數中，使擊球員擊出及的比例（GO/AO，Ground outs-fly outs ratio），通常滾飛比越高的投手，比較容易讓擊球員擊出滾地球，有機會形成雙殺打而化解危機，滾地球也不容易形成長打，但滾地球也更依賴內野手的守備。比較出名滾飛比高投手如王建民、布蘭登·偉伯等。 對打者而言，是指此打者擊球出滾地球及飛球的比例（G/F或GB/FB，Ground ball-fly ball ratio）。由於滾地球不易形成長打，通常滾飛比越高的打者，其長打率也會比較低。
* GO：滾地球出局(Ground Outs)
* AO：(Fly Outs)
* G：(Ground ball)
* F：(Fly ball) (zh)
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- ゴロ/フライ比率（ゴロ/フライひりつ、GB/FB Ratio）は、セイバーメトリクスの指標の一つである。ゴロ（GB）の総数をフライ（FB）の総数で割り、ゴロとフライの比率を調べる。同じ数の場合は1となり、これより数値が大きくなるほどゴロの割合が高く、数値が小さくなって0に近付くほどフライの割合が高い投手である事が分かる。 (ja)
- 滾飛比（英語：Ground ball fly ball ratio），是一種棒球統計術語，投手和擊球員（打者）都適用。 對投手而言，是指此投手製造之出局數中，使擊球員擊出及的比例（GO/AO，Ground outs-fly outs ratio），通常滾飛比越高的投手，比較容易讓擊球員擊出滾地球，有機會形成雙殺打而化解危機，滾地球也不容易形成長打，但滾地球也更依賴內野手的守備。比較出名滾飛比高投手如王建民、布蘭登·偉伯等。 對打者而言，是指此打者擊球出滾地球及飛球的比例（G/F或GB/FB，Ground ball-fly ball ratio）。由於滾地球不易形成長打，通常滾飛比越高的打者，其長打率也會比較低。
* GO：滾地球出局(Ground Outs)
* AO：(Fly Outs)
* G：(Ground ball)
* F：(Fly ball) (zh)
- In baseball statistics, ground ball-fly ball ratio (denoted by G/F or GB/FB) is a measure of:
* Frequency of batted ground balls in play versus fly balls in play to denote what kind of contact a batter makes more frequently. Calculated as (total ground balls in play) / (total fly balls in play) ; and
* Frequency of ground balls allowed in play versus fly balls allowed in play to denote what kind of contact a pitcher surrenders more frequently to opposing batters. Calculated as (total ground balls in play surrendered) / (total fly balls in play surrendered).
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* t
* e (en)
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- Ground ball/fly ball ratio (en)
- ゴロ/フライ比率 (ja)
- 滾飛比 (zh)
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