Order by Rank Order by Name Order by Section		Boys' 14 Singles    Player Record    Stefan Koester Residence:    Paradise Vly, AZ Birthplace:    Unknown Age: Unknown Height: Unknown Plays: Unknown Coaching: Unknown Complete Bio Overall Record: 34-22 #251 on this 2012 National Junior Standings  Print Record Scottsdale Sweet 16 L5, December 10, 2011 Rnd Result Opponent   Rank Score  16 Win Yannick Schreiber   2125 6-0; 6-1 Q Win Cameron Krimbill   1544 6-1; 6-1 S Loss Michael Lee   111 4-6; 6-1; 6-1 F-NE Win Carlos Hassey   561 7-5; 6-2 USTA BG14-12 National Winter Chmps., December 27, 2011 Rnd Result Opponent   Rank Score  128 Loss Jason Lui   56 6-2; 6-3 1-W Loss Oscar Janglin     6-1; 6-0 1-S Win Jacob Appleton   67 6-2; 6-2 2-S Loss William Sharton   61 6-2; 6-2 Valley of the Sun Closed, January 14, 2012 Rnd Result Opponent   Rank Score  16 Win Joshua Xu   1070 6-0; 6-0 Q Win Derrick Cunningham   321 6-3; 0-6; 6-4 S Win Shawn Parks   290 6-2; 5-7; 6-1 F Win Jeremy Auh   328 6-2; 6-4 USTA Regional Tourn. (Tucson), January 21, 2012 Rnd Result Opponent   Rank Score  32 Win Vamsi Senthilvel   1803 6-0; 6-1 16 Win Ronak Baldua   558 6-3; 6-1 Q Loss Michael Lee   111 6-2; 6-3 CQ Loss Keegan Smith   141 4-6; 6-4; 10-3 Scottsdale AC Jr. Open L6, January 27, 2012 Rnd Result Opponent   Rank Score  16 Win Parker Davis     6-0; 6-0 Q Win Ian Hessler     6-0; 6-0 S Win Andy Nguyen     6-3; 6-1 F Loss Gabriel Cerritos     4-6; 6-4; 10-8 Phoenix Jr. Chmps., February 11, 2012 Rnd Result Opponent   Rank Score  16 Win Jacob Good   1534 6-0; 6-0 Q Win Carlos Hassey   561 7-6(4); 6-2 S Win Nathan Niemiec   139 6-4; 6-3 F Loss Jeremy Auh   328 Wo (ill)WoI* USTA National Open, February 25, 2012 Rnd Result Opponent   Rank Score  32 Loss Ryan Marker   80 6-1; 6-2 1 Win William Gold   151 6-2; 6-1 2 Loss Garrett Kurtz   66 6-1; 6-1 Gootter Cactus Cup BG14-10, March 17, 2012 Rnd Result Opponent   Rank Score  16 Win Matthew Stein   2495 6-1; 6-1 Q Loss Adam Skrocki   1464 Wo (emerg)WoJ* New Mexico Jr. Chmps. L4, March 31, 2012 Rnd Result Opponent   Rank Score  32 Win Malachi Coleman     6-0; 6-0 16 Win Carsyn Smith   1807 6-1; 6-0 Q Win Brandon Stringfellow   542 6-1; 6-0 S Win Nathan Niemiec   139 6-0; 6-1 F Win Shawn Parks   290 6-3; 6-3 Arizona Jr. Closed Chmps. BG18-16, May 26, 2012 Rnd Result Opponent   Rank Score  32 Win Nate Rasmussen     6-4; 6-3 16 Loss Zachary Cihlar     6-3; 6-1 2 Loss David Akin     6-2; 6-2 USTA Southwest Jr. Closed, June 9, 2012 Rnd Result Opponent   Rank Score  32 Win Eric Jurecky   2065 6-0; 6-0 16 Win Cole Stofflet   974 6-1; 6-2 Q Win Harrison Reid   724 6-2; 6-4 S Loss Shawn Parks   290 7-5; 0-6; 6-3 PL Win Brandon Stringfellow   542 6-2; 6-1 USTA Zonal BG14 - Arlington, July 25, 2012 Rnd Result Opponent   Rank Score  RR Loss Xavier Oshinowo   58 6-2; 6-0 RR Loss Payton Holden   50 6-2; 6-0 RR Loss Ignacio Garcia   276 6-1; 6-1 RR Loss Alexander Brown   188 6-7(3); 6-4; 6-1 RR Loss Steven Christie   44 6-4; 6-2 New Mexico Lobo Cup L5, September 15, 2012 Rnd Result Opponent   Rank Score  32 Win Benjamin Spangler     6-2; 6-1 16 Loss George Cooper     6-2; 3-6; 6-1 CQ Win Griffin Sauer   884 6-1; 6-0 CS Win Shawn Parks   290 6-3; 5-0Ret (inj)RJ CF Win Eli Echt-Wilson     3-6; 6-1; 6-3 Dan Konchan Mem. Scholarship Open, October 13, 2012 Rnd Result Opponent   Rank Score  32 Win Mitchell Victor     6-2; 6-1 16 Loss George Cooper     7-6(4); 6-3 2 Loss Logan Hall     6-4; 6-4 Scottsdale Sweet 16 L5, November 10, 2012 Rnd Result Opponent   Rank Score  16 Win Michael Cowan     6-0; 6-0 Q Loss Michael Tran     6-0; 6-1 S-N Win Adrian Cordova     Wo (ill)WoI* F-N Loss Luke Carstens     6-4; 6-3 * The ranking calculation does not count this match.
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