Opps! Statistical error means Ariya stays at 2 (Updated)
Lydia Ko won't be relinquishing her No.1 world ranking to Thailand's Ariya Jutanugarn after all โ€“ thanks to some helpful math for the New Zealand pro.
Please join us on our Facebook page http://www.facebook.com/bangkokpostlearning
Tuesday morning update
Statistical blunder: Ariya still No.2 golfer
Online reporters from agencies
Lydia Ko won't be relinquishing her No.1 world ranking to Thailand's Ariya Jutanugarn after all – thanks to some helpful math for the New Zealand pro.
The original projection tool used to determine the Rolex Women's World Golf Rankings showed that Ariya would surpass Ko and claim the No.1 spot for the first time in her career this week.
However, once official rankings were produced Monday morning, a technical bug in the projection tool was found and addressed, keeping Ko atop the rankings.
Ariya could take over the No.1 ranking at the Manulife LPGA Classic in Canada this week.
"When running the projections, the tool used the date on which the projections were run, rather than the date when the rankings would be released," according to a statement from technical provider WWGR Inc. that was posted to social media by the LPGA.
"Thus when projections were run last week, they included the 2015 Manulife LPGA Classic in the event count for both Lydia Ko (51 events) and Ariya Jutanugarn (58 events)."
Using the correct model, it was found that Ko now has 8.37 average world ranking points to 8.36 for Ariya.
As a result, Ko retains the No. 1 ranking for an 85th consecutive week, dating back to October 2015.
Earlier story
Ariya Jutanugarn, seen here at the Honda LPGA Thailand 2017, was mistakenly thought to have become the top woman's golfer in the women's rankings based on her overall performance. (Bangkok Post file photo by Pattanapong Hirunard)
Ariya becomes World No.1 without lifting a club
Online reporters from foreign reports
Ariya Jutanugarn has become the No.1 women's golfer in the world without even having to pick up a club this weekend.
Ariya won elevation to No.1 Saturday (early Sunday Thailand time) when the only other woman who could beat her, Korean Ryu So-Yeon missed the cut Saturday at the LPGA ShopRite Classic to cement the shift.
Ryu, ranked third in the world, could have leapfrogged Ariya by finishing third or better in the tournament at Galloway, New Jersey, near New York.
But she failed even to qualify. She fired back-to-back rounds of three-over 74 to miss the second-round cut in the 54-hole tournament, where South Korea's Kim In-Kyung and American Paula Creamer shared the 36-hole lead.
Ko spent 84 weeks at the top, and has been ranked No.1 for 103 weeks overall, a record.
Ko has fallen into a slump this year, winning no tournaments and rarely finishing in the top 10.
Ariya becomes the first Thai and 10th player to reach Number One since the women's rankings were introduced in 2006.
สามารถฝึกอ่านออกเสียงและดูคำแปลได้ที่ : http://www.bangkokpost.com/learning/learning-from-news/1262414/opps-statistical-error-means-ariya-stays-at-2
