Re: irish tennis
The rankings count the best five singles results and the best two doubles results. In doubles, a win would have given Sinead 15 points - BUT she already had 2 wins worth 15 points each so a Gothenburg win wouldn't have changed her best two doubles results. But in singles, Sinead's 5th best result before last week was worth 15 points - so when she won 30 points for reaching the semis last week, that singles 15-pointer isn't counted anymore because she has a new 30-pointer to count.
In points, her best 5 singles results before Gothenburg gave her 60 + 30 + 20 + 20 + 15 = 145 points. Plus 15 + 15 for doubles = total of 175 points.
After Gothenburg where she won 30 points, the old 15 points singles result can be discarded and her points are now 60 + 30 + 30 + 20 + 20 = 160 points. Plus 15 + 15 for doubles = total of 190 points.