Ian ko

2012

Las Positas Fencing Center

Win/Loss Statistics

2023-2024 2022-2023 2021-2022 2020-2021 Before 2020 All Time
Victories 64 - - - - 64
Losses 81 - - - - 81
Win Ratio 44.1% - - - - 44.1%
Pool Victories 49 - - - - 49
Pool Losses 62 - - - - 62
Pool Win Ratio 44.1% - - - - 44.1%
DE Victories 15 - - - - 15
DE Losses 19 - - - - 19
DE Win Ratio 44.1% - - - - 44.1%

Note: Seasons start on August 1st and end on July 31st.

Scores

2023-2024 2022-2023 2021-2022 2020-2021 Before 2020 All Time
Easy wins 22 - - - - 22
Easy wins as % of wins 34.4% - - - - 34.4%
Close wins 10 - - - - 10
Close wins as % of all wins 15.6% - - - - 15.6%
Close losses 19 - - - - 19
Close losses as % of all losses 23.5% - - - - 23.5%
Big losses 40 - - - - 40
Big losses as % of all losses 49.4% - - - - 49.4%

Easy victories or big losses are those with the score difference of 4 or more touches in a pool, 7 or more touches in direct elimination, and 5 or more in veteran and youth direct elimination.
Close bouts are those with the score difference of 1 or fewer touches in a pool, 3 or fewer touches in direct elimination, or 2 or fewer touches in veteran or youth direct elimination.

Bouts with Time Expired

2023-2024 2022-2023 2021-2022 2020-2021 Before 2020 All Time
Victories 1 - - - - 1
Victories as % of all victories 1.6% - - - - 1.6%
Losses 2 - - - - 2
Losses as % of all losses 2.5% - - - - 2.5%
Total 3 - - - - 3
Total as % of all bouts 2.1% - - - - 2.1%

Events

2023-2024 2022-2023 2021-2022 2020-2021 Before 2020 All Time
Events 20 - - - - 20
Tournaments 16 - - - - 16

Competition History


AFM Youth and Cadet Cup - Event #3

Y-12 Men's Épée (U, Y12), May 5, 2024
Place 10, Seed 11, Not ranked, Rating U, Las Positas Fencing Center
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool W 5:4 NG Alexander 30 U 28 Academy Of Fencing Masters (AFM) 1583 848 99.8 20%
Pool W 5:2 CHAN Nathan 28 U 23 Academy Of Fencing Masters (AFM) 1005 948 75.5 47%
Pool W 5:3 KHUSHRAJ Rohan 10 U 8 Academy Of Fencing Masters (afm) 1091 1024 71.3 46%
Pool W 5:4 DESHPANDE Arihant 21 U 22 Academy Of Fencing Masters (afm) 443 1095 21.2 84%
Pool L 4:5 WONG Vansen 20 U 17 Academy Of Fencing Masters (AFM) 1218 1116 50.9 44%
Pool L 2:5 GACIOCH Noah 1 D24 1 Academy Of Fencing Masters (AFM) 1722 1065 18.6 15%
T32 W 15:11 VINOD Davin 22 U 25 Academy Of Fencing Masters (AFM) 2500 1212 278.4 12%
T16 L 11:15 XIE HanZhang 17 U 6 Bayside Fencing Club 1452 1490 184.7 52%

MFA Y8, Y10, Y12, Senior (unrated only) - All foil event

Y-12 Mixed Foil (U, Y12), April 21, 2024
Place 1, Seed 20, Not ranked, Rating U, Las Positas Fencing Center
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool W 5:2 STERNAD Pia 14 U 8 Davis Fencing Academy
Pool W 5:3 SRIDHARA Shaan 1 U 20 Silicon Valley Fencing Center 912 897 16.9 49%
Pool L 4:5 CHEN Ryker 16 U 5 Bay Area Fencing Club / Bay Area Fencing Club Pleasanton 1420 914 7.7 20%
Pool W 5:3 WARBURTON Eleanor 22 U 15 West Berkeley Fencing Club
Pool W 5:3 DONG Nancy 8 U 22 Silicon Valley Fencing Center
Pool W 5:2 HE Gary 9 U 2 Silicon Valley Fencing Center 1098 906 21.9 38%
T16 W 15:4 GU Evan 19 U 16 Silicon Valley Fencing Center 921 1083 51.6 59%
T8 W 15:8 DING Sam 21 U 7 Bay Area Fencing Club / Bay Area Fencing Club Pleasanton 1541 1135 92.8 27%
T4 W 15:9 YU Xintong 12 U 3 Silicon Valley Fencing Center
T2 W 15:14 HE Gary 9 U 2 Silicon Valley Fencing Center 1278 1228 60.9 47%

5th Annual Precision RYC and RJC

Y-14 Men's Foil (C2, Y14), April 14, 2024
Place 53, Seed 32, Not ranked, Rating U, Las Positas Fencing Center
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool L 0:5 ZHANG Jason 52 U 45 LA International Fencing 1677 917 4.6 11%
Pool L 2:5 PARK David 23 157 U 24 Golubitsky Fencing Center 1688 913 4.4 10%
Pool L 3:4 LI Richard 9 57 D24 21 Silicon Valley Fencing Center 2107 908 1.3 2%
Pool L 1:5 TSUI Raedyn Ho Hin 50 U 39 SoCAL Fencing Center 1497 907 6.7 17%
Pool L 3:5 WONG Evan 8 46 D23 17 Prime Fencing Academy 2117 900 1.2 2%
Pool L 0:5 KUNTSEVICH Ivan I. 25 163 E24 25 Orange County International Fencers Club 1896 899 2.4 5%
T64 L 5:15 CHANG Eric Jonathan 16 98 E24 18 Orange County International Fencers Club 2180 1092 8.5 4%

5th Annual Precision RYC and RJC

Y-12 Men's Épée (U, Y12), April 12, 2024
Place 36, Seed 26, Not ranked, Rating U, Las Positas Fencing Center
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool L 3:5 SCHWARTZMAN Ethan 43 U 13 LA International Fencing 1233 1233 140.3 50%
Pool L 1:5 DAI Steven (Chengwen) 12 92 U 9 Battle Born Fencing Club 1478 1093 71.4 28%
Pool L 1:5 JAMES Kaden 40 U 22 Academy Of Fencing Masters (AFM) 1066 1022 102.7 47%
Pool W 5:1 HUNG Ludwig 28 U 45 Fortune Fencing 450 919 47.8 74%
Pool L 4:5 WU Nathan 3 30 E24 8 Yang Fencing Club 1406 967 47.8 25%
Pool L 4:5 LEE Lucas 17 U 14 Yang Fencing Club 1047 919 70.5 42%
T64 L 9:15 DENG Destin 22 U 29 Yang Fencing Club 764 1728 516.2 87%

2024 4th Annual Las Vegas Epee Only RYC/RJC

Y-12 Men's Épée (U, Y12), April 6, 2024
Place 14, Seed 12, Not ranked, Rating U, Las Positas Fencing Center
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool W 5:1 XU Isaac 21 U 25 Sierra Blades Fencing Academy / High Desert Fencing Alliance 959 2500 95.5 93%
Pool L 3:5 NGUYEN Ethan 34 U 10 Battle Born Fencing Club 1195 2596 1146.5 93%
Pool L 1:5 WONG Kyle 10 136 U 8 Fortune Fencing 1413 1449 289.7 52%
Pool L 3:5 WU Nathan 1 30 U 2 Yang Fencing Club 1422 1159 157.8 36%
Pool W 5:1 NOLAN Morgan 22 U 28 Battle Born Fencing Club 999 1002 158.0 50%
Pool W 5:3 VENERACION Marcus 29 U 33 Battle Born Fencing Club 638 1160 73.6 75%
T32 W 15:10 PARADKAR Akshay 17 U 18 Northern Colorado Fencers 1606 2500 228.7 79%
T16 L 13:15 YU Brandon 7 115 U 3 Academy Of Fencing Masters (AFM) 1466 2729 1000.6 91%

Challenge by the Bay RYC/RCC

Y-12 Men's Foil (U, Y12), April 1, 2024
Place 30, Seed 38, Not ranked, Rating U, Las Positas Fencing Center
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool L 3:5 LI Jake 32 U 23 Massialas Foundation (M Team) 1286 953 11.7 30%
Pool L 4:5 WU Gengze (Daniel) 19 U 15 Golubitsky Fencing Center 1341 941 10.4 26%
Pool L 2:5 GANAPATHI Eshan 7 119 U 10 Prime Fencing Academy 1573 931 6.3 15%
Pool L 3:5 CREMEL Remi 18 U 26 Silicon Valley Fencing Center 1135 924 13.9 36%
Pool L 0:5 ZHANG Jason 6 115 U 6 LA International Fencing 1646 911 5.0 11%
Pool W 5:2 NGUYEN Nolan 31 U 29 Maximum Fencing Club 613 905 11.9 68%
T64 W 15:0 KO Cameron 29 U 35 Prime Fencing Academy 622 1079 37.9 74%
T32 L 6:15 ZHANG Jason 6 115 U 6 LA International Fencing 1777 1117 25.2 16%

Challenge by the Bay RYC/RCC

Y-14 Men's Foil (U, Y14), March 31, 2024
Place 52, Seed 21, Not ranked, Rating U, Las Positas Fencing Center
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool L 0:5 AGARWAL Savya 29 U 12 Prime Fencing Academy 1256 1012 14.3 35%
Pool L 2:5 DULAI Agam 46 U 29 Fresno Fencing Club 1184 998 15.8 38%
Pool L 0:5 GORDON William L. 13 170 E23 5 Bay Area Fencing Club 1930 982 3.2 6%
Pool L 0:5 WANG Elijah (QiChen) 9 136 U 16 LA International Fencing 1583 979 7.3 16%
Pool L 1:5 ZHONG Maxwell 4 90 D24 3 Silicon Valley Fencing Center 2002 971 2.5 4%
Pool L 4:5 DOUGLASS Liam 36 U 44 Prime Fencing Academy 1108 969 16.0 41%
T64 L 4:15 LEHTINEN Axel 51 U 11 The Fencing Center 1552 1123 43.7 26%

MFA Y8, Y10, Y12, Senior (unrated only) - All foil event

Y-12 Mixed Foil (U, Y12), March 17, 2024
Place 12, Seed 2, Not ranked, Rating U, Las Positas Fencing Center
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool W 5:3 ALCAZAREN Cian 23 U 28 Bay Area Fencing Club 1073 1005 22.0 46%
Pool W 5:4 JOESUF Aurielle 31 U 18 Halberstadt Fencers' Club
Pool L 4:5 ARYA Leela 20 U 7 Golden State Fencing Academy
Pool L 1:5 GUO Joey 9 U 1 Massialas Foundation (M Team) 1276 1027 14.9 34%
Pool W 5:3 PARK Seojeong 33 U 26 Silicon Valley Fencing Center
Pool W 5:2 DONG Nancy 12 U 35 Silicon Valley Fencing Center
T32 W 15:11 YU Xintong 11 U 22 Silicon Valley Fencing Center
T16 L 7:15 GUO Joey 9 U 1 Massialas Foundation (M Team) 1693 1162 39.5 21%

RYC/RCC of the Rockies

Y-12 Men's Foil (U, Y12), February 25, 2024
Place 6, Seed 10, Not ranked, Rating U, Las Positas Fencing Center
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool L 4:5 LEE Joshua 12 U 5 Elite International Fencers Club 1206 1012 18.6 38%
Pool W 5:1 MARTURANO Leo 9 U 13 South Denver Fencing Academy 643 994 14.1 72%
Pool W 5:1 KO Cameron 13 U 10 Silicon Valley Fencing Center 686 1008 14.5 70%
Pool W 5:0 COWHEY Aden 5 U 14 Roaring Fork Fencers Club 657 1022 12.3 69%
Pool L 0:5 YE Jerry 1 87 U 2 LA International Fencing / Orange County Fencing Center 1470 1035 11.5 24%
Pool L 3:5 VALENCIA Anthony N. 4 124 U 3 Denver Fencing Center 1171 1023 18.2 40%
T16 W 15:10 CHOI William 14 U 11 Prime Fencing Academy / Piedmont Fencing Team 951 1123 77.1 60%
T8 L 10:15 SLAIN Owen 3 102 U 3 Silicon Valley Fencing Center 1795 1200 37.8 18%

RYC/RCC of the Rockies

Y-14 Men's Foil (U, Y14), February 24, 2024
Place 7, Seed 15, Not ranked, Rating U, Las Positas Fencing Center
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool W 5:3 SUN Neo 11 U 13 South Denver Fencing Academy 918 1002 24.4 55%
Pool L 4:5 ZHANG Andrew 1 179 U 6 Prime Fencing Academy 1286 1026 18.3 34%
Pool L 3:5 VALENCIA Anthony N. 7 U 3 Denver Fencing Center 1140 1008 21.6 41%
Pool W 5:3 WARD Spencer 6 U 8 Roaring Fork Fencers Club 1020 986 26.1 48%
T16 W 15:6 LIM Marcus 8 U 10 South Denver Fencing Academy 717 1093 70.1 70%
T8 L 12:15 VALENCIA Anthony N. 7 U 3 Denver Fencing Center 1828 1163 39.7 16%

MFA Y8, Y10, Y12, Senior (unrated only) - All foil event

Y-12 Mixed Foil (U, Y12), February 18, 2024
Place 11, Seed 15, Not ranked, Rating U, Las Positas Fencing Center
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool W 5:2 DURBIN Libby 28 U 30 Marin Fencing Academy LLC
Pool W 5:1 WONG Connor 10 U 16 Prime Fencing Academy 1017 960 30.7 46%
Pool W 5:2 GU Evan 33 U 35 Silicon Valley Fencing Center 399 991 10.6 81%
Pool W 5:2 CHU Lauren 3 U 19 Massialas Foundation (M Team)
Pool L 4:5 MIYOSHI Kylie 21 U 5 Maximum Fencing Club
T32 W 15:6 SHEN Gloria 35 U 24 Silicon Valley Fencing Center / Silicon Valley Fencing Center
T16 L 3:15 HSIAO Ariya 17 U 7 Silicon Valley Fencing Center

MFA Y8, Y10, Y12, Senior (unrated only) - All foil event

Y-12 Mixed Foil (U, Y12), January 21, 2024
Place 11, Seed 25, Not ranked, Rating U, Las Positas Fencing Center
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool W 5:2 HSU Liam 24 U 27 Davis Fencing Academy 254 920 10.1 84%
Pool L 3:5 LIU Ariana 23 U 2 Silicon Valley Fencing Center
Pool W 5:4 GOLDSTEIN Benjamin 5 U 20 Marin Fencing Academy LLC 960 930 30.7 48%
Pool L 4:5 THERON Zoe 15 U 1 Silicon Valley Fencing Center
Pool W 5:4 ARYA Leela 16 U 16 Golden State Fencing Academy
T32 W 15:8 SARANGAN Ovia 18 U 22 Halberstadt Fencers' Club
T16 L 9:15 LIU Ariana 23 U 2 Silicon Valley Fencing Center

Treasure Chest RYC

Y-12 Men's Foil (U, Y12), January 15, 2024
Place 19, Seed 40, Not ranked, Rating U, Las Positas Fencing Center
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool W 5:1 JUE Lucas 33 U 29 Massialas Foundation (M Team) 740 752 36.7 51%
Pool L 2:5 DOUGLASS Liam 12 U 5 Prime Fencing Academy 1055 789 23.7 34%
Pool W 5:2 MORENO Raul 27 U 32 Silicon Valley Fencing Center 1024 765 36.0 37%
Pool W 5:3 HE Ian 3 45 U 12 Silicon Valley Fencing Center 1576 801 73.4 10%
Pool W 3:2 WONG Connor 17 U 25 Prime Fencing Academy 1019 874 37.9 41%
Pool W 5:1 SCHOR William 38 U 46 Maximum Fencing Club 101 912 7.2 90%
T32 L 7:15 PARK Avan 15 U 15 Silicon Valley Fencing Center 1553 1173 80.5 29%

Treasure Chest RYC

Y-14 Men's Foil (U, Y14), January 14, 2024
Place 46, Seed 14, Not ranked, Rating U, Las Positas Fencing Center
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool L 1:5 WU Thomas 40 U 20 Massialas Foundation (M Team) 1407 905 20.9 21%
Pool L 2:5 CHEN Aiden 27 U 42 Maximum Fencing Club 589 884 61.0 68%
Pool L 3:4 ZHOU Rex 31 U 22 Prime Fencing Academy 1285 823 19.8 26%
Pool L 0:5 CORTRIGHT Skipper 1 11 C23 1 Bay Area Fencing Club 2569 803 0.4 < 1%
Pool L 0:5 CHOI Andrew 47 U 35 Silicon Valley Fencing Center 876 803 35.7 45%
Pool L 0:5 LEHTINEN Axel 15 U 21 The Fencing Center 1351 767 15.0 17%
T64 L 5:15 LEHTINEN Axel 15 U 21 The Fencing Center 1480 1296 122.8 40%

December Fenceathon

Y-12 Mixed Foil (U, Y12), December 2, 2023
Place 17, Seed 11, Not ranked, Rating U, Las Positas Fencing Center
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool W 5:0 ANDERSON Gage 6 U 19 San Francisco Fencers Club 2500 805 80.7 5%
Pool W 5:2 MIYOSHI Kylie 3 U 7 Maximum Fencing Club
Pool L 3:5 KIM Natalie 14 U 14 Maximum Fencing Club
Pool L 0:5 XU Ethan 26 U 3 Silicon Valley Fencing Center 1296 886 27.4 26%
Pool W 5:0 HO Cameron 19 U 8 Silicon Valley Fencing Center 830 858 46.5 52%
T32 L 14:15 HO Cameron 19 U 8 Silicon Valley Fencing Center 1249 1555 258.8 66%

MFA Y8, Y10, Y12, Senior (unrated only) - All foil

Y-12 Mixed Foil (U, Y12), November 12, 2023
Place 3, Seed 25, Not ranked, Rating U, Las Positas Fencing Center
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool W 5:2 DONALD Milton Kozak 16 U 23 Halberstadt Fencers' Club 2500 510 114.5 3%
Pool W 5:3 YU Xintong 23 U 9 Silicon Valley Fencing Center
Pool W 5:3 GOLDSTEIN Benjamin 9 U 7 Marin Fencing Academy LLC 939 624 88.3 31%
Pool W 5:1 HSU Liam 18 U 19 Davis Fencing Academy 682 713 46.0 52%
Pool W 5:0 CHEUNG Henry 8 U 10 Maximum Fencing Club 633 759 46.5 58%
Pool W 5:1 PARK Gian 1 U 24 West Berkeley Fencing Club
T16 W 15:8 SARANGAN Ovia 24 U 12 Halberstadt Fencers' Club
T8 W 15:10 BACH-Y-RITA MC 13 U 6 Halberstadt Fencers' Club 1811 1206 349.0 24%
T4 L 8:15 LEE Abigail 12 U 2 Maximum Fencing Club

Back to School RYC/RCC

Y-12 Men's Foil (U, Y12), October 15, 2023
Place 35, Seed 36, Not ranked, Rating U, Prime Fencing Academy
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool W 5:3 CHEN Aiden 31 U 46 Maximum Fencing Club 670 328 140.1 30%
Pool L 0:5 GUO Joey 11 98 U 8 Massialas Foundation (M Team) 1214 468 25.6 13%
Pool L 1:5 HUANG Nathan 6 83 U 7 SoCAL Fencing Center 1430 442 13.8 6%
Pool W 5:4 PARK Avan 43 U 16 Silicon Valley Fencing Center 986 428 140.5 19%
Pool L 4:5 LI Aaron 27 U 28 Silicon Valley Fencing Center 695 569 59.1 42%
T64 L 8:15 OZCAN Archer 17 U 30 Maximum Fencing Club 1305 1628 422.1 65%

AFM Super Regional SYC/RJCC/ROC Div1A/Vet

Y-12 Men's Foil (U, Y12), October 6, 2023
Place 113, Seed 106, Not ranked, Rating U, Prime Fencing Academy
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool L 1:5 HARRIS Hayden 110 U 48 Fresno Fencing Club 1088 609 75.5 25%
Pool L 3:5 HO Cameron 52 U 73 Silicon Valley Fencing Center 801 533 92.0 35%
Pool L 0:5 LI Edison M. 17 45 U 18 1668 441 11.2 3%
Pool L 1:5 LI Aaron 88 U 86 Silicon Valley Fencing Center 526 430 96.3 44%
Pool L 1:5 YU ShiYu (Henry) 19 50 U 26 Golubitsky Fencing Center 1708 334 5.9 2%
T128 L 2:15 MAO Runxian 105 U 19 Silicon Valley Fencing Center 1776 2500 872.1 76%

FallFest at The Fencing Center

Y-12 Mixed Foil (U, Y12), September 23, 2023
Place 15, Seed 22, Not ranked, Rating U, Prime Fencing Academy
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool W 5:4 KIM Aiden 1 U 20 The Fencing Center 447 701 147.4 62%
Pool L 0:5 SHENOY Neil 21 U 12 Bay Area Fencing Club / V Fencing Club 704 848 217.5 58%
Pool W 5:4 LEE Abigail 9 U 5 Maximum Fencing Club
Pool L 3:5 FISCHER Grant 17 U 3 Marin Fencing Academy LLC 1774 631 22.0 6%
Pool L 0:5 TEWARI Amaira 10 U 2 Maximum Fencing Club
T32 W 15:10 TANG Amelia 20 U 18 Prime Fencing Academy
T16 L 3:15 LI Alice 5 U 1 Silicon Valley Fencing Center

MFA Y8, Y10, Y12, Senior (unrated only) - All foil event

Y-12 Mixed Foil (U, Y12), September 17, 2023
Place 24, Seed 17, Not ranked, Rating U, Prime Fencing Academy
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength
Strength Change Chance of
Victory
Pool L 4:5 KIM Natalie 15 U 10 Maximum Fencing Club
Pool W 5:0 WARBURTON Eleanor 26 U 22 West Berkeley Fencing Club
Pool L 0:5 HO Cameron 5 U 19 Silicon Valley Fencing Center 773 2500 1420.7 95%
Pool L 0:5 HSU Rachel 25 U 6 Halberstadt Fencers' Club
Pool L 1:5 SHENOY sean 6 U 16 Bay Area Fencing Club / V Fencing Club 802 1079 378.6 63%
T32 L 12:15 KIM Natalie 15 U 10 Maximum Fencing Club