this is a terrible take for so many reasons

>Dude I can throw a perfect inning, just get my sister up there batting, she'll swing at ANYTHING I strike her out every time.

i'm not comparing a 9 dart leg in the world championships to you striking out your sister...i'm comparing it to facing the best hitters on the planet

>Now have that pitcher hit strike-zone dead centre 9 times in a row - that's the equivalent

no it isn't because, the same way MVG or whoever isn't trying to hit the exact same spot every time, neither is a pitcher...a pitcher is trying to hit his spot, which isn't always right down the dick, same with darts...they're not up there aiming for 9 double corks every leg...not to mention, if you divide the strike zone into 9 equal boxes, so there's one right in the middle, 99% of professional pitchers (meaning all the way down to rookie ball) can hit that middle box 9/9 probably 99% of the time, it's not that hard; you literally picked an easier task for your equivalency

>Also have him do it under TV lights (if you've ever been on TV you know it's HOT up there) and with a thousand fans screaming in the same room

the world record for people at a darts event is about 1/3 of Yankee Stadium's average for last season, and they play outdoors in the summer...i think they'll be fine "under the lights with screaming fans"

since 1984, which was the first televised perfect leg...

perfect games (MLB) - 13

televised 9-dart legs - 72 (which means there were more professional 9-dart legs not televised...since 2007 there have been approx. 4 per year televised; if we assume 4 per year total going back to 1984, it's closer to 150)

immaculate innings (MLB) - 85

to say that a perfect leg in darts is similar in rarity to a perfect game in baseball, when one happens more than 5x as often is insane