Friday, 12 June 2009

New 'Actual Position/GP Ranking' Comparison Chart added to Golf Predictor

After adding the GP Ranking Chart to Golf Predictor the other day, we thought it would be cool if you could visually compare the predicted finishing positions (GP Rank) with the actual finishing position in all completed tournaments for any golfer in any season since predictions began (2008). Both these charts were available separately on the 'Prediction Data' page for each participating golfer in an event. However, to make it more convenient to make comparisons, we have combined them into a single multi-line chart. This is the first 'two in one' chart on Golf Predictor but we're sure it won't be the last!

This new chart is available on the 'Prediction Data' page for each golfer in each tournament ("Stats Analysis" menu, Member section - most links). There is a new row in the 'General/Season Statistics' box with the calculated average difference and standard deviation of the differences (available to subscribers only). The default chart shows the comparisons for the season up to the current tournament and there are links to any previous seasons, which show all comparisons for that season. The chart page also shows the average and standard deviation information.

As stated in a previous post, a golfer's GP ranking* varies over a season depending on his own statistics and the relative strength of the field. The screenshot above shows the Actual Result/GP Ranking comparison chart for Justin Leonard ahead of the 2009 St. Jude Classic. You can note on the site how his ranking fluctuates with the prestige of the event (and hence the quality of the field) and his previous results. Like all other charts, hovering over a point shows more information, as shown above for the week of The Masters (Actual Result).

This brings the total number of charts on Golf Predictor to 221. This new chart only available to subscribers, so sign up today and reap the full benefits of Golf Predictor, the premium professional golf statistics site.

*Note that the GP ranking algorithm evolves with time. It is often tweaked to improve performance or fix slight flaws.

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