其實這些CPBL 和MLB網站都有寫清楚阿,
(我複製過來給大家參考看看,如果有引用錯誤,請大家指正,謝謝)
CPBL : http://www.cpbl.com.tw/Rule/CPBLRules.aspx
規則10.07
F)除10.07(G)之情形外，
於最終局擊球員擊出安打而獲得超過對方的致勝分時，
對該擊球員只給予與獲致勝得分之跑壘員所進的壘同數的壘打，
但擊球員亦須安全進至該數目之壘。
【原附註】依照6.09及7.05之各項規定，准許擊球員獲得數個安全進壘權長打時，
亦適用本項規定。
【註】擊球員須正規觸及上述相同之壘數，又例如最後一局，跑壘員佔二壘時，
擊球員擊出跳入觀席之致勝安打時，擊球員為獲二壘，須正規地到達二壘。
但跑壘員佔三壘時，擊球員擊出前述之安打，雖也進入了二壘，但記錄上
僅給予一壘打。
PS 規則6.09 7.05就是指那些如場地二安那種規則安打,
MLB :
http://mlb.mlb.com/mlb/official_info/official_rules/official_scorer_10.jsp
規則10.06
(f) Subject to the provisions of Rule 10.06(g), when a batter ends a game with
a safe hit that drives in as many runs as are necessary to put his team in
the lead, the official scorer shall credit such batter with only as many bases
on his hit as are advanced by the runner who scores the winning run, and then
only if the batter runs out his hit for as many bases as are advanced by the
runner who scores the winning run.
Rule 10.06(f) Comment: The official scorer shall apply this rule even when
the batter is theoretically entitled to more bases because of being awarded
an "automatic" extra-base hit under various provisions of Rules 6.09 and 7.05.