100 – At the Australian GP Sergio Gadea will be making his 100th Grand Prix start, all of which have been in the 125cc class.
50 – Hiroshi Aoyama will clinch the 250cc world title if he scores fifty points in the three remaining races of the year, irrespective of the results of other riders.
25 – Julian Simon needs to score just 25 points from the remaining three races of the year to cinch the 125cc world title even if closest challenger Bradley Smith wins all three races.
24 – Casey Stoner celebrates his 24th birthday on the first day of practice at Phillip Island.
23 seconds – At the Portuguese Grand Prix Valentino Rossi finished 23 seconds behind race winner Jorge Lorenzo. This is the largest margin Rossi has ever finished behind a team mate in MotoGP in a race in which he has not crashed and re-mounted.
21 – This will be the 21st Australian Grand Prix, which has been held every year since the first event in 1989. The first two Australian Grands Prix were held at Phillip Island before visiting the Eastern Creek circuit for six successive years, before returning to Phillip Island in 1997 where it has since remained.
11 – Jorge Lorenzo took the eleventh pole of the year for Yamaha in Portugal. This is the greatest number of premier-class pole positions in a single season for Yamaha.
7 – The fourth place finish for Valentino Rossi at Portugal was only the seventh time he has finished one place off the podium in his 164 starts in the premier-class of Grand Prix racing. The last time he had finished fourth was at Laguna Seca in 2007.
7 - Australian riders have taken seven premier-class victories in the home Grand Prix; Wayne Gardner at Phillip Island in 1989 and 1990, Mick Doohan at Eastern Creek in 1992 & 1995 and Phillip Island in 1998, Casey Stoner for the last two years at Phillip Island.
4 – Yamaha riders have won the last four MotoGP races. A victory for any of the Yamaha riders in Australia and it will equal the longest ever sequence of successive wins for Yamaha in the premier-class which they achieved in 2005 and 2008.
4th - Valentino Rossi’s fourth place finish in Portugal was the first time that he has failed to finish on the podium in his ten visits to the Estoril circuit for a MotoGP race.
2.832 Seconds – The 2001 race at Phillip Island is the closest premier-class race of all time with just 2.832 seconds covering the first nine riders across the line.