Takwimu za batting na pitching
Takwimu za baseball: AVG, OBP, SLG, OPS, ERA na WHIP
Mwongozo wa vitendo wa takwimu za kawaida za batting na pitching, fomula zake na mipaka ya kile namba moja inaweza kueleza.
AVG, at-bat na plate appearance
Batting average (AVG) ni hits zilizogawanywa kwa at-bats: AVG = H / AB. At-bat (AB) si sawa na plate appearance (PA). Walk, hit-by-pitch na sacrifice fulani zinaweza kuongeza PA bila kuongeza AB, hivyo PA kwa kawaida huwa kubwa kuliko AB.
OBP, SLG na OPS
On-base percentage (OBP) hupima mara ngapi batter anafika base kupitia matokeo yanayohesabiwa kwenye fomula, kama hit, walk na hit-by-pitch. Slugging percentage (SLG) ni total bases zilizogawanywa kwa at-bats na huipa extra-base hit uzito mkubwa zaidi. OPS ni OBP + SLG.
ERA na innings pitched
Earned run average (ERA) huonyesha earned runs zilizoruhusiwa kwa kila innings tisa: ERA = 9 × ER / IP. Innings pitched hujengwa kutoka outs; kila out ni theluthi moja ya inning. Katika notation ya kawaida, 5.1 IP ni innings tano na theluthi moja na 5.2 ni tano na theluthi mbili, si desimali.
WHIP na muktadha wa takwimu
WHIP = (BB + H) / IP: walks pamoja na hits zilizoruhusiwa, zikigawanywa kwa innings pitched. WHIP ya chini kwa kawaida humaanisha baserunner wachache kupitia njia hizo mbili. Hit batters, errors na fielder’s choices hazihesabiwi, na takwimu moja haiwezi kueleza batter au pitcher kikamilifu.