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Originally a member of LGD Gaming, YYF was recruited by Invictus Gaming in August 2011 along with his teammates ChuaN, 830 and ch, where they formed the line-up iG.Y. In November 2011, iG.Y and iG.Z merged into a single roster comprised of YYF, ChuaN, Faith, Ferrari 430 and Zhou. Invictus Gaming was invited in The International 2012, where they achieved a nearly flawless 13-1 record in the group stage and defeated Evil Geniuses in the playoffs first round, only to be sent into the loser's bracket by the reigning champion Natus Vincere. The roster nonetheless made it to the grand finals at the expense of EHOME, Team DK and LGD Gaming, and ultimately defeated Natus Vincere in order to secure the $1,000,000 champion's prize.
On July 24th, 2014, YYF announced his retirement on his Weibo.
With Invictus Gaming
|2014-07-19||7 - 8th||The International 2014||1 : 2||LGD Gaming||$519,208|
|2014-06-29||1st||ESL One Frankfurt||2 : 1||Evil Geniuses||$80,900|
|2014-06-02||1st||WPC 2014||4 : 1||Team DK||¥1,000,000|
|2014-04-20||4th||Star Ladder Star Series Season 9||0 : 2||Team Empire||$14,893|
|2014-01-19||2nd||G-League 2013||0 : 3||Team DK||¥50,000|
|2014-01-07||1st||Red Bull ECL 2013 Grand Finals||2 : 0||Team DK||¥100,000|
|2014-01-01||2nd||WPC ACE Dota 2 League 2013||3 : 4||Team DK||¥300,000|
- 2014-06-25 | A tradition of dominance: Invictus Gaming by Jesse "Terial" Sell of ESLGaming.com
- 2013-05-04 | iG.YYF: "Winning TI2 filled us with self-confidence" by AutumnWindz_ of g1.2p.com at G-1 Champions League Season 5
- 2013-04-09 | iG.YYF G-1 Interview: Confidence, teamwork our strengths by AutumnWindz_ of g1.2p.com at G-1 Champions League Season 5
- 2012-12-20 | Netease interview with iG — “playing pro is quite tiring, ChuaN loves air conditioning…” and new iG team in the making? by Netease, translated by Dotaland