Cy Young - 511 career wins
Baseball loves its stats and one of the most impressive records in the game is Joe DiMaggio's 56-game streak with a hit - set in 1941. The closest anyone has come to reaching the Yankee great is Pete Rose in 1978 when he got to 44 games. More recently Jimmy Rollins reached 38 games in 2005-06. Highly unlikely DiMaggio's record will be broken but still possible. There are a number of records that won't ever be broken in baseball however, due to the number of appearances pitchers made in the late 1800s early 1900s. Cy Young's career win record of 511 is one of them. From 1890 to 1911 Young started up to 49 games on the mound - these days pitchers start 30-35 games per season. For a player to reach 500, they would have to average 25 wins in 20 seasons. Only three players in the last 33 years have won 25 in just one season.
The current active wins leader Tim Hudson has 213 and he's aged 38.
Don Bradman - 99.94 test batting average
Consistency great and a record that will never be beaten. In 52 tests the Don scored 29 hundreds and 13 50s, including 12 scores over 200. Other batsmen have since surpassed him in centuries and runs but they took a lot more games to do so. The next closest in career average is South African Graeme Pollock with 60.97 while West Indian George Headley (60.83) and England's Herbert Sutcliffe (60.73) are the only other players to crack 60. New Zealand's own Jimmy Neesham (99) was on par with Bradman after two centuries in his first two tests early this year but fell to 64 by the end of the West Indies series.
Laura Langman - 257 consecutive netball games
Since making her Silver Ferns debut against England in 2005, the New Zealand centre has never missed an international - clocking up 107 straight games. She has also played 151 straight domestic games since 2003 to make it 257 consecutive matches. Her record comes in an era where the sport has never been more physical and even if another player could match the form consistently of Langman they are highly unlikely to go through such a long run without injury.