"according to tracking" is correct and usable in written English.
You can use it when you want to refer to data from a survey, study, or other type of research that is being used to support a particular point. For example: "According to tracking, student test scores have increased significantly since the implementation of the new curriculum."
But generally leaves turn color from north to south during a six-week period from about the middle of September to the first week of November, according to tracking sites like foliagenetwork.com, which provides regular reports.
Failed projects often exhibit a perplexing pattern: They appear to be going fabulously according to tracking indicators right up until the moment when they explode into unmitigated disasters.
Farmville 2 currently has 42.4 million monthly active users, 7.4 million daily active users and a healthy stickiness ratio of daily-to-monthly active users at 17.5percentt, according to tracking site AppData.
Experts say the decline in "exits" out of start-up mode and the rise in so-called megadeals are causing early-stage investment to represent a narrower slice of all fundraisings for five straight quarters, dropping to 23% over the summer, according to tracking firm CB Insights.
According to tracking service Topsy the hashtag had been used 4,600 times since Sunday.
Fewer business people are attending conferences like Macworld, where attendance fell almost 17,000 from 2006 to 2010, to 21,455, according to tracking by Event Attendance Audit.
According to track and field's international governing body, she has won 32 of her last 34 races.
The son of subsistence farmers, Kiprotich had missed nearly three years of elementary school with an unexplained illness, according to track and field's world governing body.
His accomplishments helped place the United States at the forefront of an event in which the country had struggled to be competitive, according to track and field histories.
The most serious injury, according to track officials, was a woman who had a cut lip and a broken jaw.
All told, according to Tracks.by, it's a $50 billion per year business.
