Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Series | Date | Entrants | Winner | First Prize |
| --- | --- | --- | --- | --- |
| FTOPS I | August 2006 | 1468.0 | Crownnginger | $161,480 |
| FTOPS II | November 2006 | 2449.0 | Spiked | $224,653 |
| FTOPS III | February 2007 | 3217.0 | Traheho (Alec Torelli) | $288,001 |
| FTOPS IV | May 2007 | 3798.0 | John_McClane17 | $336,217 |
| FTOPS V | August 2007 | 4578.0 | CrazyZachary (Zachary Clark) | $395,905 |
| FTOPS VI | November 2007 | 4371.0 | fkscreennames (Daryl Jace) | $385,937 |
| FTOPS VII | February 2008 | 5291.0 | Reverse (Allen Goldstein) | $456,401 |
| FTOPS VIII | May 2008 | 4750.0 | cheesemonster (Keith Lehr) | $410,780 |
| FTOPS IX | August 2008 | 4880.0 | dubbeemin (Brian Mintz) | $432,400 |
| FTOPS X | November 2008 | 5225.0 | Julian Verse (Va Shon Watkins) | $450,708 |
| FTOPS XI | February 2009 | 5287.0 | csimmsux (Adam Geyer) | $456,056 |
| FTOPS XII | May 2009 | 4581.0 | Pocketownage420 | $432,400 |
| FTOPS XIII | August 2009 | 5306.0 | Poligraph (Matthew Waxman) | $453,663 |
| FTOPS XIV | November 2009 | 5471.0 | zhivago2 (Heinz Kamutzki) | $418,839 |
| FTOPS XV | February 2010 | 5645.0 | JackQKA | $237,644 (7-way deal) |
| FTOPS XVI | May 2010 | 4534.0 | Kirbynator | $327,057.40 (3-way deal) |
| FTOPS XVII | August 2010 | 4805.0 | TyboVegas | $423,057.41 (2-way deal) |
| FTOPS XVIII | November 2010 | 5023.0 | JHoWn | $411,932.13 (3-way deal) |
| FTOPS XIX | February 2011 | 14479.0 | GIAMPP | $877,949.74 (3-way deal) |
| FTOPS XX | May 2011 | 4666.0 | ArielBahia (Ariel Celestino) | $346,696 (4-way deal) |
| FTOPS XXI | December 2012 | 4766.0 | yadio1111 (Yann Dion) | $453,229.40 (2-way deal) |
| FTOPS XXII | March 2013 | 3653.0 | feel fine | $392,332.20 |
| FTOPS XXIII | August 2013 | 3327.0 | Itahaschi | $270,828.43 (3-way deal) |
Question:
Who won on May 2011?
Answer:
ArielBahia (Ariel Celestino)