![]() My main issue is the use of ordinal data to calculate averages. ![]() Even with a disclaimer it’s clear from the comments section that this can be confusing. ![]() ![]() I have an issue with the way True Rank is being used especially since you have different data points (total putts and % first putts made) mixed in. I haven’t looked closely enough to confirm as much, but I think the lack of linear progression is a result of 10′ showing the widest range in the total putt count. Some putters perform closer to the 5′ average, while others are closer to the 20′ average. At 10′ there’s more variability in the 1-putt make percentages. It can be a difference-making distance if the 1-putt percentage is significantly higher than the average, but again, the probabilities heavily suggest a 2-putt. At 20′ every putter produces a 2-putt the majority of the time. I’d have to double-check, but I think the average 1-putt make rate is somewhere in the 70-75% range…maybe a bit less than that, as I think about it. At 5′ every putter produces a 1-putt the majority of the time. Our working theory is that 10′ is, in a sense, the money distance. It’s possible that an analysis similar to what we do to determine overall rankings might yield some clarity. I should first say that the individual distance rankings come from a raw putt count, so we don’t look at the statistical reliability of the individual distance data. It’s an interesting observation, and you’re not the first to have raised it. PLEASE NOTE: While the graphics for the top performers show 1st Putt Make Percentages for the top finishers, the rankings in the chart below are based on the total number of putts at each distance. Our overall rankings are derived from the test of statistical significance, which is displayed in the last column. All columns can be sorted to suit your preference. The chart below contains the individual distance rankings from this year’s test. Test Location: MyGolfSpy Testing Facility.Here are the complete parameters of this year’s test: Hopefully, this should help clarify some of the questions around rankings. NOTE: Based on your feedback, we have updated the graphics for the top performing putters to show the make percentage for each putter at each of the three distances tested. To simplify things a bit, we call the final order TRUERank a metric that includes the order of finish (rank), along with the percentage of golfers for whom each club was shown to be in the statistical top group. Our Most Wanted winner is the club that finishes in the statistically significant top group for the greatest percentage of our testers. For some testers, there is a single statistically significant best, while for others, more than half the field is shown not to be reliably different from an individual’s top performer. The number of putters in this statistical top group varies between testers. Then, for each golfer, using a 90% confidence interval, we identify any other putters for which the total number of putts is not reliably different from the top performer. Next, we identify the top performing club (the one with the fewest total putts) for each tester. The total number of putts required to finish each hole with each putter is recorded. Our goal, as always, remains to empower you, the consumer, with accurate and reliable data and analysis that will help you identify the best putter for your game.Įach putter is put through a comprehensive test consisting of a series of putts from distances of 5, 10 and 20 feet. Each of our 20 testers putts the equivalent of 18 holes with each putter. Testing took more than 135 hours to complete with 17,463 total putts recorded. All testers used Bridgestone Tour B-RX Golf Balls. This year’s test took place at the MGS Test Facility. 20 testers participated. The MyGolfSpy DifferenceĢ018’s Most Wanted Blade test is the largest, fully independent putter test conducted in the industry. If you are in the market for a new mallet putter in 2018, this is for you. The top-ranked putter is that which finished in the statistically significant top group for the largest number of testers. In 2018, we have yet again improved our scoring metrics to formulate the TRUERank for each putter. We get rid of the all the marketing and make it about one thing: Performance. We test all of the major brands, and then some. We’re trying to take the guesswork out of buying a putter. There’s no promise that it will drop your score. When you pull a random putter off the rack in a store, it’s like you’re buying a very expensive lottery ticket. Is your putter helping or hurting your game? Putters are among the least fitted clubs in a golfer’s bag.
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