Boys' 14 Singles
   Player Record   

Sean Ko
Residence:   Danville, CA
Birthplace:   Unknown
Age:Unknown
Height:Unknown
Plays:Unknown
Coaching:Unknown
Complete Bio

Overall Record: 71-23
#45 on this 2012 National Junior Standings
 Print Record

Alameda Jr. Open, February 26, 2011

Rnd

Result

Opponent  

Rank

Score 
16LossJonathan Li  203Wd (ill)WI*

Modesto Jr. Chmps., March 12, 2011

Rnd

Result

Opponent  

Rank

Score 
64WinZachary Woerner   6-1; 6-2
32LossManpreet Tiwana   6-3; 6-1

Diamond Hills Jr. Championship, March 26, 2011

Rnd

Result

Opponent  

Rank

Score 
64LossDavid Konstantinov   6-1; 6-2

Discovery Bay Jr. Open, April 2, 2011

Rnd

Result

Opponent  

Rank

Score 
QWinChris Lilley   6-3; 7-6(3))
SWinJoe Rivera   6-4; 3-6; 10-8
FLossKosuke Hasegawa   6-3; 6-1

Spare Time Jr. Chmps. Open, April 9, 2011

Rnd

Result

Opponent  

Rank

Score 
64LossRohan Shankar   7-5; 6-1

Rio Del Oro Chmp. Tourn., April 23, 2011

Rnd

Result

Opponent  

Rank

Score 
64WinCorey Pang  +7-6(4); 6-3
32WinParker Silverman   6-2; 6-3
16LossJonathan Pike   Wd (emerg)WI*

Santa Cruz Open, April 30, 2011

Rnd

Result

Opponent  

Rank

Score 
16WinMarvin Liu   6-3; 6-2
QWinAndrew Luong   6-1; 6-0
SWinJonathan Kim   6-4; 1-0Ret (inj)RJ

USTA National Open, May 14, 2011

Rnd

Result

Opponent  

Rank

Score 
32LossNathan Ponwith  206-3; 7-6(4)
1WinGabriel Rapoport  1856-2; 6-1
2WinJustin Sun  36Wo (ill)WoI*
QQWinHunter Egger  1116-1; 6-3
CQLossAdrian Chamdani  436-1; 6-3

Spare Time Memorial Day Jr. Excellence, May 21, 2011

Rnd

Result

Opponent  

Rank

Score 
32WinDeric Wanland  +3-6; 6-4; 7-5
16LossSriman Kolachalam   6-3; 6-4
2WinMatthew Campana  +3-3Ret (inj)RJ
QQLossCody Rakela   6-2; 6-1

Modesto Summer Jr. Open, June 10, 2011

Rnd

Result

Opponent  

Rank

Score 
SWinBijan Origel   6-1; 6-1
FWinJakob Keppelmann   6-0; 6-2

NorCal BG14 Sectional Chmps., June 13, 2011

Rnd

Result

Opponent  

Rank

Score 
64WinMaxim Baban  2556-4; 6-1
32WinMaksim Tsukanov  5927-5; 6-0
16WinPeter Shin  1066-3; 6-2
QLossVictor Pham  136-1; 6-2
CQWinJonathan Li  2037-6(2); 6-2
CSWinVikram Chari  636-1Ret (inj)RJ
CFLossVince Tabotabo  696-3; 6-1

Santa Cruz Jr. Academy Open, June 27, 2011

Rnd

Result

Opponent  

Rank

Score 
16WinAlex Frank   6-1; 6-0
QWinKevin Gao   6-0; 6-0
SWinSatya Bodduluri   6-4; 6-0
FLossCorey Pang   6-2Ret (ill)RI

USTA Regional Tourn. (Sacramento), July 9, 2011

Rnd

Result

Opponent  

Rank

Score 
64WinDominic Barretto  7066-1; 6-0
32WinJ. Conlin  3313-6; 6-1; 6-0
16WinMike Wang  2916-2; 6-0
QWinAlexander Hwang  1476-2; 6-2
SLossKalman Boyd  396-3; 6-2
PLWinDaniel Gealer  1546-0; 6-3

USTA BG14 Zonal - Colorado, July 27, 2011

Rnd

Result

Opponent  

Rank

Score 
RRWinStefan Ball  3246-2; 6-2
RRWinSreyas Kolachalam  817-6; 6-2
RRWinDerek Vincent  7786-1; 6-2
RRWinJackson Kogan  7236-2; 6-0
RRWinChase Stoner  7096-1; 6-3

Alameda Jr. Open, August 8, 2011

Rnd

Result

Opponent  

Rank

Score 
QWinScott Morris   6-4; 6-2
SWinNathaniel Putnam   Wd (emerg)WI*
FWinSpencer Simonides  +6-4; 1-6; 10-3

Hunter Gallaway's After School Jr., August 22, 2011

Rnd

Result

Opponent  

Rank

Score 
QWinJakob Keppelmann   6-1; 3-6; 10-4
SWinAlec Bakos   6-2; 6-2
FLossCorey Pang   6-0; 6-1

USTA Regional Tourn. (Carmel), September 3, 2011

Rnd

Result

Opponent  

Rank

Score 
32WinLeon Haneda  6496-1; 6-1
16WinJoshua Huang  2056-1; 6-1
QWinVayum Arora  1246-0; 6-2
SWinAndy Zhou  1132-6; 7-6; 5-0Ret (inj)RJ
FLossSreyas Kolachalam  816-1; 6-4

Courtside Jr. Chmp., September 17, 2011

Rnd

Result

Opponent  

Rank

Score 
64WinConnor Soohoo  13896-0; 6-0
32WinJason Chu  18926-1; 6-0
16WinPeter Campana  5636-2; 6-0
QWinSeung Kim  3136-2; 7-5
SLossSatyajit Simhadri  1197-6(4); 6-7(4; 6-1
PLLossBryant Johnson  1266-3; 3-6; 6-3

Fremont TC Jr. Chmps., October 1, 2011

Rnd

Result

Opponent  

Rank

Score 
64WinGordon Huang  24536-0; 6-0
32WinTynan Maguire  7856-0; 6-1
16WinRonak Baldua  6976-0; 6-0
QWinAllen Wang  3786-1; 6-1
SWinJayson Fung  1616-4; 6-0
FWinLane Leschly  667-6(0); 4-6; 6-1

Broadstone Jr. Excellence, October 15, 2011

Rnd

Result

Opponent  

Rank

Score 
32WinDominic Barretto  7066-1; 6-1
16WinRonak Baldua  6976-1; 6-0
QWinSatyajit Simhadri  1196-1; 6-1
SWinBryant Johnson  1266-2; 6-4
FWinLane Leschly  664-6; 6-0; 7-6(8)

Legler-Roberts Tennis Chmps., October 29, 2011

Rnd

Result

Opponent  

Rank

Score 
32WinZachary Hewlin   6-1; 6-2
16WinCameron Kirkpatrick   6-1; 6-0
QWinVikram Chari  +6-2; 6-2
SWinCody Rakela  +6-4; 7-6
FLossKeivon Tabrizi   6-4; 6-2

HG Academy Jr. Open & Chal., November 12, 2011

Rnd

Result

Opponent  

Rank

Score 
QWinMichael Feldman  +6-1; 6-1
SWinJames Chen   6-0; 6-1
FLossMiguel Diaz   7-5; 6-4

Walnut Country Thunder Open, November 25, 2011

Rnd

Result

Opponent  

Rank

Score 
32WinRaphael Flores   6-0; 6-0
16WinChris Harper   6-0; 6-0
QWinWilliam Boyd   6-4; 6-4
SWinJonathan Pike   2-6; 6-2; 10-5
FLossNathan Oppenheim   6-2; 6-2

Happy New Year Lafayette TC Open, December 31, 2011

Rnd

Result

Opponent  

Rank

Score 
16WinChristopher Wen  +6-2; 6-2
QWinSirish Narayanan   6-2; 6-0
SWinDavid Konstantinov  +6-2; 4-1Ret (inj)RJ
FLossNoah Lee   5-7; 6-2; 10-6

SSRC Jr. Excellence, January 28, 2012

Rnd

Result

Opponent  

Rank

Score 
32WinNeel Bedekar  1766-1; 6-0
16LossKial Kaiser   6-7(3); 6-2; 6-2
2LossJustin Sun  366-2; 6-1

Johnson Ranch Jr. Chmps., February 11, 2012

Rnd

Result

Opponent  

Rank

Score 
64WinHermont Legaspi  4286-2; 6-3
32WinLuke Whalen   6-1; 6-2
16LossJustin Sun  366-2; 4-6; 6-3

+ Strong win over an ineligible player.
* The ranking calculation does not count this match.



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