Its becoming a more popular term in baseballs vernacular: spin rate. On some broadcasts, its almost as ubiquitous as the velocity readings. What exactly are they referring to? What do we know about how its tracked and what the data means? Does it deserve the hallowed treatment its beginning to get? Lets start with the basics.What is spin rate?At the heart of the Statcast numbers were seeing now is the Trackman system. In 2015, all major league parks had set up the radar equipment from the Danish company, in addition to existing cameras that gave us SportVisions PITCHf/x data. Radar is superior to video tracking when it comes to a high-velocity spinning ball, particularly because it can directly measure some things (like spin rate) that were merely extrapolated from movement before.In order to get the best data, MLB Advanced Media is now combining a series of high-definition optical cameras in each park with the radar system. Theyre working to have the two systems hand off certain high- and low-trajectory batted balls so they get the best of both worlds.Now, instead of judging spin backward by movement, the radar system can tell us the spin of the pitched baseball in revolutions per minute. That spin changes the movement of the pitch, so in some ways, its a one-number way to sum up the movement on a pitch. But theres evidence that spin may have something to do with deception as well, because batters naturally try to read the spin on each pitch.How MLB teams are using the infoTheres evidence that teams have been taking this information very seriously in recent years. Theyve had Trackman numbers in some form much longer than theyve been available for public consumption, and theyve been acting on it. In fact, the Astros admitted to claiming Collin McHugh off waivers because his curveball had a very high spin rate, and Ryan Buchter recently talked to me about how much the Dodgers value spin rate, especially from their relievers. Even if we dont know everything about it, the teams themselves are telling us its important from their actions.Now lets look at how spin rate matters for the various pitches.Which fastballs have the most spin?Danny Fortson Jersey . Oaklands loss to Seattle clinched the ALs best record for the Red Sox with one day to spare in the regular season. "I think everybody was kind of watching," catcher David Ross said. "Demp (Ryan Dempster) came out before he went to the bullpen and was just yelling that they lost. Dennis Johnson Jersey . Radwanska, making her debut in the Seoul tournament, hit eight aces in a match that lasted 1 hour, 4 minutes at Olympic Park tennis stadium. "It was definitely a very good match -- I was playing really good tennis," Radwanska said. https://www.supersonicsjerseys.com/240s-dale-ellis-jersey-supersonics.html . Colin Wilson had two goals and an assist, and Mike Fisher scored a goal and helped set up two others in the Predators 6-4 victory over the Red Wings on Monday night. Kevin Durant Jersey . John Tavares, Thomas Vanek and Kyle Okposo were also being counted on to slow down sizzling Rangers forward Rick Nash. That plan didnt go so well early. Brent Barry Jersey . -- PGA TOUR Canada member Steve Saunders took a three-stroke lead Saturday in the Web.Eighth spot on the ladder is officially up for grabs according to this weeks installment of the ESPN AFL Power Rankings. North Melbourne have squandered a league-leading 9-0 record to fall out of the rankings top eight for the first time this season, following their poor effort against Port Adelaide on Saturday.On paper, the Kangaroos do seem to have a slightly relaxed immediate fixture, though matches against in-form teams Collingwood and St Kilda would have North coach Brad Scott considerably less confident than what he might have been two months ago.If Geelong are to challenge for a top four spot, they must take care of business at home this week. They currently have the worst percentage of the four teams withh 11 wins, and although pack leader GWS are only a few percentage points ahead, the Cats have the tougher run home, hence their ranking position of seven.ddddddddddddThe Bulldogs have jumped up a couple of spots following their strong recent form, but West Coasts shaky MCG performance culminated in just a seven-point win over Carlton; theyve slipped out of the top four as a result.The bottom half of the ladder remains largely unchanged after last weekends results, with only Melbourne dropping a couple of spots after they were unable to break their 12-game losing streak to the Saints. ' ' '