|Full name||Christopher John Mason|
|Nickname||Mace the Ace|
|Date of birth||17 December 1969|
|Place of birth||Bristol, England|
|Home town||Wolverhampton, England|
|Playing darts since||1995|
|Walk-on music||Ace of Spades by Motörhead|
|Organisation (see split in darts)|
|BDO||1995 to 1996, 1997 to 2001|
|PDC||1996 to 1997, 2001 to present|
|Current world ranking||42 (as of 5/1/2010)|
|BDO majors - best performances|
|World Ch'ship||SF 1999, 2000|
|World Masters||SF 2000|
|PDC premier events - best performances|
|World Ch'ship||QF 2003|
|World Matchplay||SF 1998|
|World Grand Prix||QF 2004|
|Grand Slam||First round 2007|
|Ch'ship League||Initial groups, 7th, 2008|
|Desert Classic||QF 2006|
|European Ch'ship||First round 2008|
|UK Open||QF 2005|
|US Open/WSoD||QF 2008|
|Players Ch'ship Finals||First round 2009|
|Other tournament wins|
He began his career in the British Darts Organisation making his World Championship debut in 1996. He lost 0-3 to Andy Fordham. After joining the World Darts Council in 1996, Mason competed in the WDC world championships in 1997 and he lost 1-3 to Gerald Verrier and 0-3 to Phil Taylor in the group stage. In 1997, Mason reached the final of the Sky Sports World Pairs partnered by Steve Raw, where they were narrowly beaten by Taylor and Bob Anderson.
He went back to the BDO after the Tomlin Order. After a second round defeat in the BDO world championships in 1998, he enjoyed his best achievement in the 1999 World Championship when he recovered from 1-4 down in his best-of-nine quarter-final match against Martin Adams to win 6-4 in legs in the deciding set. This match is regarded as one of the best matches on television. He lost the semi-final 2-5 to Raymond van Barneveld, three of those sets on deciding legs.
He avenged the defeat to van Barneveld the following year beating him 3-1 in the first round and averaged over 100 with each visit to the board. Mason also beat Fordham in the quarter-finals before losing 4-5 to Ted Hankey in the semi-finals, after leading 4-2, this match holds the 180 record for a 9 set match with 38 180's hit in the match, 16 of them from Mason, marking the second consecutive year that he had lost to the eventual champion in the semi-finals.
Mason's last appearance at Lakeside was a first round defeat to Mervyn King in 2001. He also reached the semi final of the BDO's other major tournament, the Winmau World Masters in 2000 and shortly after the BDO/PDC agreed Tomlin Order, some BDO players participated in the World Matchplay event between 1998 and 2001. Mason reached the 1998 semi-final losing 11-13 to Ronnie Baxter and the 1999 quarter-finals before losing 11-16 to Taylor. Mason also hit the perfect 9 dart game in the last 32 stage of the Winmau World Masters, watched by good friend Bobby George, who said "it was OK apart from the treble 19 wasn't quite in the middle".
He decided to switch from the BDO to the Professional Darts Corporation (PDC) in time to play at the PDC World Championships again in 2002, but he lost in the first round to Dave Askew. He reached the quarter finals in 2003 - losing to eventual champion John Part. He took time out from the game to deal with his personal issues and his enforced absence caused him to miss most tournaments in 2003 and 2004 - but he returned to play in the 2004 World Grand Prix in October and reached the quarter-finals.
Mason has many titles to his name including the Irish Masters and the Vauxhall Pro Open on 3 occasions although neither event was televised. Mason won the Irish Masters which was screened by Sky and also has lifted the Scottish Open and the English Open titles to his impressive résumé. Mason was Taylor's opposition at the 2002 World Matchplay when Taylor hit the first nine-dart finish to be televised live on British screens.
Mason's personal life has been under much scrutiny. Mason was convicted of assault and assault with intent to resist arrest in March 1990 and sentenced to 180 hours community service. This was followed by a three-month jail sentence suspended for 12 months for actual bodily harm and, in August 1993, by three years' probation for assault causing actual bodily harm.
On 14 April 2003, Mason and two friends Mark and Simon Gibson, were found guilty of aggravated burglary with intent to cause grievous bodily harm. The victim of the attack, Poole scaffolder Neal Harley, was left with a broken nose, scalp cuts, facial swelling and bruising. The attack, which was sparked by a Yorkshire terrier dog named Doris which Mark Gibson had bought for Harley's fiancee Jane Graham while they were having a relationship some years earlier and had been "hostile" towards her new boyfriends. On 3 April 2002, Ms Graham had agreed to care for the dog but later returned it as it behaved too aggressively. Prosecutor, Mark Worsley, said that because of this Mark Gibson decided to confront Mr Harley and turned up that night with a hammer and his accomplices, saying: "Come on boys, let's do him". The Gibson brothers received five and six year sentences and Mason received a three-year sentence on 2 June 2003, but he served just over a year.
In 2007, Mason became one of ITV's pundits for the inaugural Grand Slam of Darts. It was ITV's return to broadcasting darts after an absence of almost two decades. He has remained a feature of their coverage as a match summariser and co-commentator as ITV have also expanded their coverage to two PDC tournaments per year.
Mason hit the headlines for criticising Phil Taylor in the newspapers before their last 16 match at the 2007 World Championship and allegedly swearing at him during the post-match handshake on-stage after Taylor beat him 4-0. He did apologise to Taylor after the tournament ended, but received a £750 fine and a four-month ban (suspended for 12 months) from the Darts Regulation Authority.
Mason took the decision to move from Kilkenny, Ireland to Stoke-on-Trent late in 2006. A few top players had made Stoke their home and Mason made the move partly so he could practice with Andy Hamilton. However, shortly after the World Championship Hamilton switched to practising with Taylor - who broke off from mentoring Adrian Lewis. He now currently resides in Wolverhampton..
He is married to Lorna and has three children.