The most popular size for major league players is 34 inches and 32 ounces.
MLB regulations allow a bat up to 42 inches, but we've yet to record anyone using a bat larger than 36. Even today, big hitters rarely go much over 34, let alone 35 inches. They dwarf in comparison with big hitters of the past.
According to the Official Rules of Major League Baseball [1]: 1.10. (a) The bat shall be a smooth, round stick not more than 2.61 inches in diameter at the thickest part and not more than 42 inches in length.
The bat used by Mike Trout during a baseball game is 33.5 inches long with a 2.5-inch diameter barrel. The Old Hickory MT27 has a 29/32” handle and weighs 31.5 ounces.
This is a Genuine H&B Louisville Slugger signature model #C271 measuring 34″ in length and weighing 32 oz. This uncracked bat shows heavy game use including ball marks, stitch impressions, pine tar and Junior's patented criss-cross tape pattern on the grip.
Bonds' bat, at 34 inches, and weighing around 32 ounces was based loosely on the C331 Louisville Slugger model that was originally turned for Carl Crawford.
Harper's Victus BH137. 1 measures 34/31.5, and the cut is most similar to Victus' V243. It seems to be Bryce's favorite of all the bats he swings.
Bryce Harper
The 19-year-old Nationals phenom has been using a 36-inch, 47-ounce Marucci bat in the practice cage before games.
Measurements: 34 inch, 32 oz.
Mitch Moreland and J.D. Martinez use 34-inch, 32-ounce bats.
Williams swung a bat crafted from ash, the favored wood of that era. His bat weighed 33-34 ounces for much of his career, a light bat compared to Ruth, Cobb, and most players in the early days of baseball. 59 The bat length for Williams was 35 inches, comparable to the length of many deadball stars.
Plyers in this height range weighing between 121 pounds and 180 pounds should swing a 32-inch bat. However, a 33-inch bat is ideal for players between these heights who weigh more than 180 pounds. Players who stand 5'5" to 5'8" in height and weigh 91 to 100 pounds will benefit from a 31-inch bat.
The most amazing thing about these bats, though, is that the 36-inch, 38-ounce Ruth bat is the model the Babe used late in his career. According to the Babe Ruth Museum, the bat he used as a younger player weighed 42 ounces.
According to Chandler, Judge's AJ99. 2 is a 35 inch, 33 ounce bat with no cup, which he's been swinging since April. At that point he switched to a Cutch22 knob, keeping the same 1.04″ handle as he had in the past.
Vlad Jr. is an Under Armour athlete and wears the UA Yard spikes and turfs with UA Epic batting gloves. He does his damage with a Louisville Slugger C243 maple bat.
The wood bat Mike Trout uses is made by Old Hickory Bat Company. This is a Custom Pro wood bat, which is the exact same bat they would send to Mike Trout to use during the All Star Game. When purchasing an Old Hickory wood bat, you can be assured you are getting one of the finest pieces of lumber on the baseball field.
A full size 34" bat, produced by the Cooperstown Bat Company. Built like a bruising football player, Frank Thomas chose a bat and glove over shoulder pads at Auburn University, forging historic success on big league baseball diamonds for almost two decades.
It is the first recorded such Willie Mays type in the MEARS data base. Second, it is 35 3/4" in length while his norm was 35". While we do not have the exact shipping records for Adirondack, it is documented that he did order some 36" H&B bats in 1969 as well as some 35.5" bats in 1954.
Stanton also uses a 32-ounce bat, and considering how he is 6'5", 250 pounds, the bat's lightness probably the reason why he can hit home runs like this.
So, using a heavier bat should result in faster hit balls, which means the hit ball will travel farther. If a player can maintain the same bat swing speed with a heavier bat, the heavier bat will produce higher batted ball velocity and an increase in distance.
“That's Pete Alonso.” Alonso uses a 34-inch-long, 32-ounce bat made of yellow birch that is uncupped at its larger end to provide for a heavier swing rate, Lancisi said. That the bat has proven successful for the 26-year-old Tampa, Florida, product known as the “Polar Bear” is reflected in his long-ball success.