Tyler Ko

2003

Win/Loss Statistics

2024-2025 2023-2024 2022-2023 2021-2022 Before 2021 All Time
Victories - - - - 55 55
Losses - - - - 76 76
Win Ratio - - - - 42.0% 42.0%
Pool Victories - - - - 46 46
Pool Losses - - - - 58 58
Pool Win Ratio - - - - 44.2% 44.2%
DE Victories - - - - 9 9
DE Losses - - - - 18 18
DE Win Ratio - - - - 33.3% 33.3%

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

Scores

2024-2025 2023-2024 2022-2023 2021-2022 Before 2021 All Time
Easy wins† - - - - 23 23
Easy wins as % of wins - - - - 41.8% 41.8%
Close wins‡ - - - - 6 6
Close wins as % of all wins - - - - 10.9% 10.9%
Close losses‡ - - - - 21 21
Close losses as % of all losses - - - - 27.6% 27.6%
Big losses† - - - - 27 27
Big losses as % of all losses - - - - 35.5% 35.5%

† 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.

Events

2024-2025 2023-2024 2022-2023 2021-2022 Before 2021 All Time
Events - - - - 19 19
Tournaments - - - - 10 10

Competition History

USA Fencing National Championships & July Challenge

Div III Men's Foil (C3, DV3), July 6, 2019
Place 108 of 217, Seed 89, Not ranked, Rating D18, Massialas Foundation (M Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool W 5:1 HOWARD Alexander 160 E19 172 Boston Fencing Club 2486 2618 10.8 59%
Pool L 2:5 BAE Kevin 27 D19 7 Gutkovskiy Fencing Academy 2741 2629 11.2 43%
Pool W 5:2 WANG Waley 151 E19 206 Royal Fencing Academy 2080 2617 5.4 81%
Pool L 0:5 XIAO Anthony 36 D19 42 International Fencers Alliance Of Boston 2754 2623 10.7 41%
Pool L 4:5 HUANG Joshua A. 213 U 130 Heartland Fencing Academy 2373 2612 16.0 65%
Pool W 5:1 MAGIDSON Gabriel 98 D18 140 North Shore Fencers Club 2981 2596 19.6 26%
T256 W 15:4 DECKER Evan M. 157 E19 154 Iowa City Fencing Center 1901 2440 20.0 73%
T128 L 7:15 STRAYER Andrew 35 D19 34 Delaware Valley Fencers Club-PA 2215 2460 56.3 64%

USA Fencing National Championships & July Challenge

Div II Men's Foil (B3, DV2), July 4, 2019
Place 106 of 247, Seed 172, Not ranked, Rating D18, Massialas Foundation (M Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool L 2:5 OTAKE Jared K. 45 C19 42 Silicon Valley Fencing Center 2862 2628 9.7 35%
Pool L 3:5 FU Samuel Y. 28 C19 75 V Fencing Club 2899 2618 9.0 32%
Pool W 5:2 MURRAY-GRAMLICH Robert 190 E19 221 Charlotte Fencing Academy 2281 2609 7.9 69%
Pool L 4:5 LENTHART Robert (Ian) I. 99 C17 143 Georgia State University 2364 2617 14.3 64%
Pool W 5:1 WANG Gerald Y. 244 U 163 Tim Morehouse Fencing Club (Port Chester) 2215 2603 7.3 74%
Pool W 5:1 JIN Honggu 117 D19 212 Metro Tacoma Fencing Club 2234 2610 7.4 73%
T256 W 15:4 BRYANT Max 224 E18 158 Fencing Academy Of Westchester 1782 2439 18.5 81%
T128 L 13:15 XU Max 76 C18 43 Heartland Fencing Academy 3138 2457 17.1 17%

USA Fencing National Championships & July Challenge

Cadet Men's Foil (A4, CDT), July 3, 2019
Place 226 of 296, Seed 223, Not ranked, Rating D18, Massialas Foundation (M Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool L 1:5 LA ROSA Federico 39 43 B18 31 LE CLUB TOUCHE / V Fencing Club 3164 2659 6.3 20%
Pool L 4:5 ARIZA Isaac A. 48 52 B19 53 Masters Fencing Club 3176 2653 6.0 20%
Pool W 5:2 GISLER Benjamin B. 134 C19 271 Rockville Fencing Academy 2281 2647 8.1 73%
Pool L 4:5 MORALES Ian N. 126 C19 109 San Diego Fencing Center 2629 2655 14.4 52%
Pool L 4:5 KAZA Nitish 211 D19 144 NEMA Fencing Center 2736 2640 12.1 44%
T256 L 8:15 LEVY Jacob M. 27 30 A19 26 Fresno Fencing Academy 3662 2443 4.3 3%

Bay Cup: JWF4 JMF4 DV1XF2 DV2WF2 DV2MF2 UWF2 UMF2

Junior Men's Foil (B2, JNR), April 28, 2019
Place 15 of 30, Seed 21, Not ranked, Rating D18, Massialas Foundation (m Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool W 5:1 MASCARI DUMONT Alexandre 29 U 21 Massialas Foundation (m Team) 2265 2635 8.6 73%
Pool W 5:1 OH Samuel H. 3 B18 2 Massialas Foundation (m Team) 2929 2643 21.1 32%
Pool L 2:5 LAO Scott E. 18 D19 3 California Fencing Academy 2841 2664 11.5 38%
Pool W 5:1 WESTELIUS Isak R. 8 C19 25 Silicon Valley Fencing Center 2855 2653 18.7 37%
Pool L 2:5 MAO Connor 13 C18 18 Fresno Fencing Academy 2775 2671 12.5 43%
T32 W 15:6 MASCARI DUMONT Alexandre 29 U 21 Massialas Foundation (m Team) 2106 2426 35.7 69%
T16 L 12:15 LI Raphael C. 5 C19 5 Massialas Foundation (m Team) 3129 2461 18.4 15%

2019 USA Fencing Anaheim SJCC Tournament

Cadet Men's Foil (A3, CDT), March 16, 2019
Place 64 of 113, Seed 78, Not ranked, Rating D18, Massialas Foundation (M Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool L 1:5 HONG Daniel 22 77 C18 65 Golubitsky Fencing Center 3189 2666 6.7 20%
Pool L 1:5 KO Brian J. 13 54 B19 14 Team Touche Fencing Center / Precision Athletics Fencing Club 3267 2659 5.6 16%
Pool L 1:5 FU Samuel Y. 47 C19 86 V Fencing Club 2865 2653 11.4 36%
Pool L 4:5 JEON Caleb A. 57 C18 39 Silicon Valley Fencing Center 3100 2642 7.4 23%
T128 W 15:12 HONG Daniel 22 77 C18 65 Golubitsky Fencing Center 2713 2386 89.1 31%
T64 L 10:15 UPTON Michael 40 B18 27 Renaissance Fencing Club / New Amsterdam Fencing Academy North 2523 2475 49.8 47%

2019 USA Fencing Anaheim SJCC Tournament

Junior Men's Foil (A4, JNR), March 15, 2019
Place 87 of 139, Seed 112, Not ranked, Rating D18, Massialas Foundation (M Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool L 3:5 LIN Richard W. 48 B18 41 Tim Morehouse Fencing Club (Port Chester) / North Shore Fencers Club 3078 2613 8.2 22%
Pool W 5:4 XIAO Enoch A. 33 A18 72 Birmingham Fencing Club 3192 2605 31.5 17%
Pool W 5:3 PRILUTSKY David B. 8 79 B19 3 Premier Fencing Club / Fencers Club Inc. 3587 2637 40.8 6%
Pool W 5:3 KIM BANSEOK 129 E18 134 Anaheim Hills Fencers Club 2119 2678 6.4 82%
Pool L 1:5 FORTNER Lance R. 73 C19 16 United Fencing Academy 3001 2684 9.9 30%
Pool L 2:5 JEON Caleb A. 82 C18 69 Silicon Valley Fencing Center 3081 2674 8.4 25%
T128 L 9:15 FARQUHARSON Cole 55 B18 27 Park City Fencing 3017 2413 27.0 18%

3rd Annual Sword in the Stone RYC & RJCC

Junior Men's Foil (B2, JNR), February 23, 2019
Place 31 of 44, Seed 24, Not ranked, Rating D18, Massialas Foundation (M Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool L 4:5 DIVITO Dylan 4 B18 2 Gryphon Fencing 3251 2607 6.1 15%
Pool W 5:3 NGUYEN Nish 18 C18 23 Anaheim Hills Fencers Club 2837 2601 23.6 35%
Pool W 5:1 HOU Kenneth 33 E18 41 LE CLUB TOUCHE 2249 2624 9.9 73%
Pool L 2:5 PROUTY Nicholas C. 11 C19 3 Team Touche Fencing Center 3447 2634 4.0 10%
Pool L 0:5 JORDON Kaleb W. 39 E18 34 United Fencing Academy / Points West Fencing Club 2618 2630 16.8 51%
T64 W 15:7 KIM BANSEOK 38 E18 37 Anaheim Hills Fencers Club 2429 2362 82.3 46%
T32 L 8:15 FORTNER Lance R. 9 C19 9 United Fencing Academy 3006 2444 30.6 21%

3rd Annual Sword in the Stone RYC & RJCC

Cadet Men's Foil (C2, CDT), February 22, 2019
Place 13 of 28, Seed 7, Not ranked, Rating D18, Massialas Foundation (M Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool W 5:3 CHOI Samuel 2 D19 3 California Fencing Academy 2614 2576 20.9 48%
Pool W 5:1 YANG Chun qin 25 U 28 Orange County Fencing Center 2094 2597 8.0 71%
Pool L 3:5 LEE David Y. 20 E18 14 Team Touche Fencing Center 2313 2605 26.9 68%
Pool W 5:0 GODZHIK Zachary 11 E19 8 United Fencing Academy 2991 2578 30.1 25%
Pool L 3:5 TSAY Jeremy M. 24 U 9 Silicon Valley Fencing Center 2872 2608 12.7 33%
Pool W 5:0 HOU Kenneth 18 E18 22 LE CLUB TOUCHE 2273 2596 11.3 70%
T32 W 15:3 GOLDADE Luke A. 6 D18 24 South Coast Fencing Center 1942 2465 43.7 77%
T16 L 11:15 SWEENEY Quinn 8 D18 6 California Fencing Academy 1919 2509 147.2 80%

Junior Olympic National Championships

Cadet Men's Foil (A4, CDT), February 18, 2019
Place 220 of 307, Seed 204, Not ranked, Rating D18, Massialas Foundation (M Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool W 5:2 HSIUNG Richie 233 E19 260 California Fencing Academy 2403 2590 16.8 62%
Pool L 1:5 BRATTON Jack S. 28 41 A18 21 Fencing Institute Of Texas 3430 2607 4.8 9%
Pool W 5:2 GORDON Sasha 292 U 275 Fencing Academy Of Westchester 2049 2602 8.6 81%
Pool L 0:5 GROSSMAN SMISEK Spencer E. 61 82 B18 57 Fencers Club Inc. 3252 2611 7.1 15%
Pool L 4:5 CATLIN Adam 117 C19 121 United Fencing Academy 2803 2604 15.6 37%
Pool L 1:5 ANDERSON Colton J. 149 C18 87 Bluegrass Fencers' Club / Hudson Centers For The Martial Arts 2931 2588 12.1 29%
T256 L 6:15 DICKSON Farr R. 50 68 A19 44 Salle Mauro Fencing Academy 3440 2485 19.5 8%

Junior Olympic National Championships

Junior Men's Foil (A4, JNR), February 16, 2019
Place 229 of 319, Seed 266, Not ranked, Rating D18, Massialas Foundation (M Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool L 4:5 HO Justin 195 C18 163 United Fencing Academy 2517 2601 25.8 55%
Pool W 5:4 YAGGY Alexander C. 287 E18 299 Vermont Fencing Alliance 2077 2575 9.6 71%
Pool L 2:5 XIAO Ethan J. 103 B19 130 Birmingham Fencing Club 3353 2585 5.9 11%
Pool L 0:5 ANDRADE Nicholas H. 11 26 A18 9 Moe Fencing Club LLC 3929 2579 1.1 2%
Pool L 2:5 NGUYEN Nish 174 C18 226 Anaheim Hills Fencers Club 2760 2578 17.6 38%
Pool W 5:3 SEZER Kaya 82 A18 203 Center for Blade Arts / Twin Cities Fencing Club 2892 2560 30.1 31%
T256 L 4:15 LEVIN Nestor R. 17 33 A17 24 US Air Force Academy NCAA University / Fencing Academy Of Westchester 3748 2495 10.0 4%

The Fencing Center RJCC

Cadet Men's Foil (B2, CDT), February 3, 2019
Place 19 of 46, Seed 20, Not ranked, Rating D18, Massialas Foundation (m Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool L 4:5 LI Raphael C. 9 C18 3 Massialas Foundation (m Team) 2762 2531 19.5 35%
Pool W 5:4 AVRON Case B. 25 D18 26 LA International Fencing 2263 2511 18.4 66%
Pool W 5:3 HUANG Bernard 44 U 32 Le Club Touche 2462 2530 23.0 54%
Pool W 5:1 YEE Johnathan 34 U 41 The Fencing Center 2017 2553 10.6 80%
Pool W 5:3 WESTELIUS Isak R. 6 97 C18 15 Silicon Valley Fencing Center 2941 2563 37.7 27%
T32 L 9:15 WESTELIUS Isak R. 6 97 C18 15 Silicon Valley Fencing Center 2940 2560 65.2 29%

The Fencing Center RJCC

Junior Men's Foil (A2, JNR), February 2, 2019
Place 22 of 42, Seed 28, Not ranked, Rating D18, Massialas Foundation (m Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool W 5:0 HUANG Bernard 39 U 30 Le Club Touche 2461 2485 30.6 51%
Pool W 5:4 CAI Jason Zhicheng 15 C18 28 Golubitsky Fencing Center 2514 2516 31.2 50%
Pool L 3:5 LEVY Jacob M. 3 111 A18 1 Fresno Fencing Academy 3182 2547 10.6 15%
Pool L 0:5 LAO Scott E. 27 D18 12 California Fencing Academy 2768 2537 21.5 35%
Pool L 4:5 HODESS Ethan 22 D19 16 LA International Fencing 2676 2515 23.0 40%
Pool W 5:3 ZHANG Luke T. 10 C19 31 Silicon Valley Fencing Center 2769 2492 38.7 33%
T32 L 3:15 URODOVSKIKH Evan 4 136 B19 8 Silicon Valley Fencing Center 3741 2574 14.1 5%

TFC WinterFest DIV1A ROC

Div I-A Men's Foil (B2, D1A), January 13, 2019
Place 29 of 37, Seed 23, Not ranked, Rating D18, Massialas Foundation (m Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool W 5:2 LIM Charles Q. 30 E18 32 Massialas Foundation (m Team) 2207 2432 28.3 64%
Pool W 5:3 ZENG Lucas H. 2 B18 18 Silicon Valley Fencing Center 3256 2460 81.2 10%
Pool L 3:5 DARIANO Noah G. 14 C18 24 California Fencing Academy 2863 2541 22.3 30%
Pool L 0:5 JAYASEKARA Hiran H. 26 D18 22 Le Club Touche / V Fencing Club 3076 2519 14.1 19%
Pool L 3:5 WESTELIUS Isak R. 11 C18 7 Silicon Valley Fencing Center 2877 2505 19.3 28%
T32 L 8:15 TSANG Matthew K. 22 D18 11 Massialas Foundation (m Team) 2922 2666 91.5 36%

AFM Div2 ROC and RJCC

Cadet Men's Foil (B2, CDT), November 24, 2018
Place 34 of 53, Seed 23, Not ranked, Rating D18, Massialas Foundation (M Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool L 4:5 SHIH William 7 B18 3 LE CLUB TOUCHE 2841 2379 22.7 24%
Pool W 5:2 MURUHIN Yaroslav 26 D17 33 Silicon Valley Fencing Center 2533 2357 54.0 39%
Pool L 1:5 KUMBLA Samarth 10 C18 3 Silicon Valley Fencing Center 3177 2411 11.3 11%
Pool W 5:2 ELLIS Preston Y. 41 U 38 Academy Of Fencing Masters (AFM) 2077 2399 24.2 68%
Pool W 5:1 WALKER Nathan A. 40 U 52 West Berkeley Fencing Club 1428 2424 8.0 89%
T64 L 14:15 YU Anders 24 D18 8 Massialas Foundation (M Team) 2656 2827 161.1 59%

AFM Div2 ROC and RJCC

Div II Men's Foil (C2, DV2), November 23, 2018
Place 5 of 34, Seed 10, Not ranked, Rating D18, Massialas Foundation (M Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool L 4:5 WANG Andrew 21 E18 14 Silicon Valley Fencing Center 2530 2249 42.4 33%
Pool W 5:2 LUNA Emilio 20 E18 21 Lionheart Fencing Academy/Coeur Du Lion Fencing Cl 2207 2207 57.2 50%
Pool W 5:1 LEE David S. 32 U 34 The Fencing Center 1732 2264 23.2 73%
Pool W 5:2 LA ROSA Federico 1 B18 2 LE CLUB TOUCHE / V Fencing Club 3046 2287 111.1 12%
Pool W 5:3 LIU Yuchen 31 U 29 Golden Gate Fencing Center 1922 2398 23.1 73%
Pool L 4:5 SOOD Kishan S. 11 D18 3 California Fencing Academy 2521 2422 42.1 44%
T32 W 15:12 HSIUNG Richie 13 E18 26 California Fencing Academy 1753 2615 65.7 85%
T16 W 15:8 BALDWIN Timothy M. 5 C15 16 West Berkeley Fencing Club 3369 2681 251.1 23%
T8 L 9:15 LA ROSA Federico 1 B18 2 LE CLUB TOUCHE / V Fencing Club 3295 2932 105.3 31%

November NAC

Cadet Men's Foil (A4, CDT), November 12, 2018
Place 106 of 249, Seed 187, Not ranked, Rating D18, Massialas Foundation (M Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool L 2:5 HODGES Carter F. 28 31 A18 20 Manhattan Fencing Center 3874 1884 0.7 < 1%
Pool W 5:0 SWEENEY Quinn 172 D18 203 California Fencing Academy 1903 1883 95.3 49%
Pool L 2:5 LIAO Alex J. 118 C18 124 Candlewood Fencing Center 2738 1979 24.8 13%
Pool W 5:2 HOOSHI Dylan M. 100 B18 97 5T Fencers Club 3199 1954 226.9 3%
Pool W 5:2 SEAH Chad 244 U 224 2449 2181 86.3 35%
Pool L 3:5 XIAO Ethan J. 45 51 B18 95 Birmingham Fencing Club 3050 2267 17.7 11%
T256 W 15:10 STANLEY Mason B. 108 B18 153 Moe Fencing Club LLC 3302 1768 931.1 4%
T128 L 11:15 POON Simon 26 29 A18 6 3495 2699 83.9 17%

November NAC

Junior Men's Foil (A4, JNR), November 10, 2018
Place 290 of 329, Seed 269, Not ranked, Rating D18, Massialas Foundation (M Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool L 2:5 HAMILTON Bogdan A. 108 B18 101 The Fencers Academy 3506 1867 3.7 1%
Pool L 1:5 CATLIN Adam 202 C18 153 United Fencing Academy 2833 1864 21.6 8%
Pool L 2:5 ZHANG Vincent 176 B17 226 Silicon Valley Fencing Center 2672 1842 31.4 19%
Pool L 0:5 POON Simon 81 111 A18 48 3611 1811 2.8 1%
Pool W 5:2 FINLEY Samuel W. 298 E17 319 Texas Fencing Academy 1803 1808 76.9 50%
Pool L 0:5 LEVY Jasper 14 20 A18 34 Brooklyn Bridge Fencing Club 3922 1885 0.8 < 1%

RJCC of the Rockies

Cadet Men's Foil (C1, CDT), September 30, 2018
Place 19 of 23, Seed 5, Not ranked, Rating D18, Massialas Foundation (m Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool L 1:5 KIM Isaiah G. 12 D18 11 Golubitsky Fencing Center 2111 1872 130.7 38%
Pool W 5:0 HAN Andersen Y. 13 D17 16 Metro Tacoma Fencing Club 2315 1742 246.5 22%
Pool L 4:5 OTAKE Jared K. 4 D18 9 Silicon Valley Fencing Center 3204 1988 17.6 6%
Pool L 1:5 HSIUNG Richie 19 E18 18 California Fencing Academy 2100 1971 103.2 43%
T32 L 12:15 CHIN Julian S. 22 U 14 Massialas Foundation (m Team) 2790 1931 162.5 22%

RJCC of the Rockies

Junior Men's Foil (B2, JNR), September 29, 2018
Place 20 of 27, Seed 15, Not ranked, Rating D18, Massialas Foundation (m Team)
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool L 3:5 CHIN Jason Y. 13 D18 10 Massialas Foundation (m Team) 3245 2500 266.4 25%
Pool W 5:3 HSIUNG Richie 19 E18 19 California Fencing Academy 1721 2234 260.0 70%
Pool W 5:2 HOLDERNESS Landon 25 E18 26 South Denver Fencing Academy 1874 2494 162.7 72%
Pool L 4:5 WESTPHAL David R. 3 C18 6 Nmfc/duke City Fencing / Denver Fencing Center 3311 2656 134.5 26%
Pool L 1:5 FUNK Theo S. 7 C18 5 Presidio Fencing Club 2705 2522 189.3 42%
Pool L 4:5 PHAM-CHANG Duke A. 27 U 15 Golubitsky Fencing Center 1247 2333 460.2 90%
T32 L 11:15 SOOD Kishan S. 16 D18 13 California Fencing Academy 2079 2500 569.5 63%