Jordyn Kosai

2002

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Win/Loss Statistics

2025-2026 2024-2025 2023-2024 2022-2023 Before 2022 All Time
Victories - - 5 8 38 51
Losses - - 2 21 52 75
Win Ratio - - 71.4% 27.6% 42.2% 40.5%
Pool Victories - - 4 6 31 41
Pool Losses - - 1 17 39 57
Pool Win Ratio - - 80.0% 26.1% 44.3% 41.8%
DE Victories - - 1 2 7 10
DE Losses - - 1 4 13 18
DE Win Ratio - - 50.0% 33.3% 35.0% 35.7%

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

Scores

2025-2026 2024-2025 2023-2024 2022-2023 Before 2022 All Time
Easy wins† - - 2 6 19 27
Easy wins as % of wins - - 40.0% 75.0% 50.0% 52.9%
Close wins‡ - - - - 4 4
Close wins as % of all wins - - 0.0% 0.0% 10.5% 7.8%
Close losses‡ - - - - 6 6
Close losses as % of all losses - - 0.0% 0.0% 11.5% 8.0%
Big losses† - - - 12 21 33
Big losses as % of all losses - - 0.0% 57.1% 40.4% 44.0%

† 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

2025-2026 2024-2025 2023-2024 2022-2023 Before 2022 All Time
Victories - - - 1 2 3
Victories as % of all victories - - 0.0% 12.5% 5.3% 5.9%
Losses - - - 1 5 6
Losses as % of all losses - - 0.0% 4.8% 9.6% 8.0%
Total - - - 2 7 9
Total as % of all bouts - - 0.0% 6.9% 7.8% 7.1%

Events

2025-2026 2024-2025 2023-2024 2022-2023 Before 2022 All Time
Events - - 1 4 14 19
Tournaments - - 1 4 11 16

Competition History

DFA November Foil & Epee Open

Senior Mixed Foil (D1, SNR), November 19, 2023
Place 11 of 25, Seed 24, Not ranked, Rating U, University Of California Davis
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
V 5:3 HOUGHTON Zachary 7 E23 6
Pool
V 5:2 HONG Olivia 14 U 22 Davis Fencing Academy 2500 2031 24.0 32%
Pool
D 2:5 MARIANI Lou 3 C22 7
Pool
V 5:1 CRIDLAND Trent 11 U 18 Davis Fencing Academy
Pool
V 5:3 SPADA James 20 U 15 Davis Fencing Academy
T32
V 15:2 FLORES Kenneth 17 U 23 Davis Fencing Academy
T16
D 9:15 HOUGHTON Zachary 7 E23 6

Ref Observational Bay Cup at WBFC: XF3, XE2, XS3

Senior Mixed Foil (C1, SNR), May 29, 2023
Place 20 of 21, Seed 19, Not ranked, Rating U, University Of California Davis / Prime Fencing Academy
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
D 1:5 ADAMS Cedric 12 U 8 Massialas Foundation (m Team)
Pool
D 2:5 BHATT Morgane 1 A19 10 Halberstadt Fencers' Club 2935 2036 5.6 8%
Pool
D 0:5 LIU William 5 D23 2 Golden State Fencing Academy
Pool
V 5:1 HAMEL Gillian 21 U 21 West Berkeley Fencing Club
Pool
D 1:5 ZANDER Edmund Johann 14 U 12 Heisler Fencing Club
Pool
D 2:5 VAN SCOYK Aeron I. 6 D23 7 Davis Fencing Academy
T32
D 9:15 LIANG Zixuan R. 17 U 13 University Of California Davis / Prime Fencing Academy 2072 2080 85.9 50%

TFC February Fence-A-Thon

Senior Mixed Foil (D1, SNR), February 26, 2023
Place 14 of 21, Seed 21, Not ranked, Rating U, University of California Davis / Prime Fencing Academy
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
D 2:5 YEE Johnathan 4 D22 2 The Fencing Center
Pool
D 1:5 LI Jett 3 D22 5 Golden State Fencing Academy
Pool
D 2:5 DEW Eric 6 D21 3 Halberstadt Fencers' Club
Pool
V 5:2 LI Sheng 14 U 21 Bay Area Fencing Club
Pool
D 0:5 EDISON Ansel 9 E23 3 Massialas Foundation (m Team)
Pool
V 5:1 BECKER Ethan 17 U 19 West Berkeley Fencing Club
T32
V 15:5 BECKER Ethan 17 U 19 West Berkeley Fencing Club
T16
D 5:15 LI Jett 3 D22 5 Golden State Fencing Academy

Cal Poly NCIFL 2022-2023 Tournament

Mixed Foil (U), February 11, 2023
Place 25 of 46, Seed 35, Not ranked, Rating U, University of California at Davis / Prime Fencing Academy
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
D 3:5 MEYERS Maxwell 9 D22 13 University of California, Santa Cruz
Pool
D 2:5 LI Frank Missing ID 42 U 19 San Jose State University
Pool
V 5:1 FLAVIN Brady Missing ID 44 U 36 Cal Fencing Club (uc Berkeley)
Pool
D 1:5 CHEN Cynthia 6 C19 9 U. Of Calif/santa Barbara / Golubitsky Fencing Center 2907 2042 6.0 8%
Pool
V 5:1 SOURY Max Missing ID 37 U 46 Cal Poly University Fencing Club
T64
V 10:1 NGUYEN Audrey Missing ID 30 U 40 San Jose State University
T32
D 4:10 REDDINGTON aidan 12 E22 1 Cal Poly University Fencing Club / United Fencing Academy

UCD October All Weapon Open at DFA

Senior Mixed Foil (B2, SNR), October 16, 2022
Place 24 of 28, Seed 27, Not ranked, Rating U, University of California at Davis / Prime Fencing Academy
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
D 3:5 EDISON Ansel 13 E22 9 Massialas Foundation / Pacific Fencing Club
Pool
D 1:5 CASTANEDA Keira 5 D22 11 Rain City Fencing Center 2300 2104 24.7 38%
Pool
D 0:5 PENG Serena 12 E22 10 Bay Area Fencing Club 2321 2080 22.2 35%
Pool
V 5:3 WARNER Mason 21 U 27 Davis Fencing Academy
Pool
D 1:5 LI Shuang 4 C22 7 Golden State Fencing Academy / Halberstadt Fencers' Club 2517 2057 14.9 23%
Pool
D 1:5 FANG Jaden 26 U 20 Silicon Valley Fencing Center
T32
D 5:15 MEINHOLD Li 7 D22 6 Presidio Fencing Club / U. Of California-davis Fencing Club

NCIFL Spring Open at SJSU

Mixed Foil (U), April 30, 2022
Place 6 of 22, Seed 18, Not ranked, Rating U, University of California at Davis / Prime Fencing Academy
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
V 5:1 LEE Kit Sun Anson Missing ID 7 U 12 San Jose State University
Pool
D 3:5 JAGANI Shaan 11 U 2 University of California at Berkeley / Swordplay LA
Pool
V 5:2 HONG Angela 22 U 17 University of California, Santa Cruz 2921 2042 40.4 18%
Pool
V 5:1 NICOLACOUDIS Mia 4 U 21 Arizona State University Fencing Club / The Fencing Center of San Jose 2079 2083 21.4 50%
T16
V 10:9 JIANG Runfeng 14 U 11 San Jose State University
T8
D 4:10 JAGANI Shaan 11 U 2 University of California at Berkeley / Swordplay LA

Post April Fools Tournament

Senior Mixed Foil (C2, SNR), April 2, 2022
Place 20 of 25, Seed 13, Not ranked, Rating U, University of California at Davis / Prime Fencing Academy
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
D 0:5 PATINO Yahir 4 D21 3 Massialas Foundation (m Team) / Davis Fencing Academy
Pool
D 4:5 PERGERSON Cole 16 U 22 The Fencing Center of San Jose
Pool
V 5:2 CASTILLO Jonas 19 U 18 University of California at Berkeley / Halberstadt Fencers' Club
Pool
D 1:5 FINNEY Lorenz 5 D21 6 Marin Fencing Academy
Pool
D 2:5 REICHEL Ezra 17 U 13 Massialas Foundation
T32
D 10:15 REICHEL Ezra 17 U 13 Massialas Foundation

UCD Crush on Competition 3 Weapon Open

Mixed Foil (D1), February 26, 2022
Place 19 of 34, Seed 25, Not ranked, Rating U, University of California at Davis / Prime Fencing Academy
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
D 3:5 HARRIS Otto 8 E21 11 West Berkeley Fencing Club
Pool
V 5:3 SOPER Benjamin 23 U 23 Davis Fencing Academy
Pool
V 5:3 BALENZANO Christopher Missing ID 14 U 31 Cal Poly University Fencing Club
Pool
D 1:5 WARRICK Braden 13 U 7 University of California, Santa Cruz / Salle Santa Cruz
Pool
V 5:0 JAIN Advik 21 U 29
Pool
D 1:5 SCHEUERMANN Andrew 3 D19 9 Stanford University / University of Florida Fencing Team
T32
D 6:15 TON Kalista 34 U 14 University of California at Davis / Davis Fencing Academy 2697 2124 44.6 24%

January Challenge

Senior Mixed Foil (D1, SNR), January 30, 2022
Place 14 of 24, Seed 16, Not ranked, Rating U, University of California at Davis / Prime Fencing Academy
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
D 1:5 MEINHOLD Li 8 E21 10 Presidio Fencing Club / U. Of California-davis Fencing Club
Pool
V 5:2 EDISON Ansel 13 U 12 Massialas Foundation / Pacific Fencing Club
Pool
D 3:5 SEEDS Edward 9 E21 6 West Berkeley Fencing Club
Pool
D 2:5 LI Shuang 1 D21 8 Golden Gate Fencing Center / Iowa City Fencing Center 2410 2063 20.7 29%
Pool
V 5:0 BECKER Ethan 23 U 23 West Berkeley Fencing Club
T32
V 15:4 EBERHART Ava 11 U 19 Davis Fencing Academy 1149 2099 25.5 89%
T16
D 3:15 KHER Roan 6 E21 2 Silicon Valley Fencing Center

Work Off the Turkey

Senior Mixed Foil (D1, SNR), November 27, 2021
Place 12 of 17, Seed 6, Not ranked, Rating U, University of California at Davis / Prime Fencing Academy
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
V 5:4 RAMIREZ Jordan 7 U 15 University of California at Davis
Pool
D 1:5 TON Kalista 13 U 5 Davis Fencing Academy 2021 2100 36.5 55%
Pool
D 4:5 LUONG Allen 15 U 10 Halberstadt Fencers' Club
Pool
V 5:3 CORTRIGHT Joshua 1 D21 3 Le Club Touche / V Fencing Club
Pool
V 5:1 SIU Darren 4 U 14 University of California at Berkeley
T16
D 9:15 CORTRIGHT Joshua 1 D21 3 Le Club Touche / V Fencing Club

Cal Poly NCIFL Turkey Tournament 2021

Mixed Foil (E1), November 13, 2021
Place 12 of 35, Seed 8, Not ranked, Rating U, University of California at Davis / Prime Fencing Academy
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
V 5:0 ANSARI Sarah Missing ID 18 U 33 University of California at Davis
Pool
V 5:0 CHAVEZ Francisco Missing ID 24 U 31 University of California at Davis
Pool
D 2:5 SPEICH Sage Missing ID 14 U 17 Cal Poly University Fencing Club
Pool
V 5:3 STRAKL Ziga 30 U 22 Spartan Fencing Club / The Fencing Center
Pool
V 5:3 JAGANI Shaad Missing ID 35 U 8 University of California at Berkeley
Pool
D 3:5 OCKENFUSS Jeremiah 3 E19 3 University of California, Santa Cruz / En Garde Fencing
T32
V 10:2 STRAKL Ziga 30 U 22 Spartan Fencing Club / The Fencing Center
T16
D 4:10 HOUGHTON Zachary 27 U 5 University of California at Davis

NorCal Foil/Sabre JO Qualifiers

Junior Women's Foil (E1, JNR), December 22, 2019
Place 2 of 6, Seed 4, Not ranked, Rating U, Prime Fencing Academy
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
V 5:1 DUJARI Mina 2 U 6 1255 2042 10.9 87%
Pool
V 5:0 WU Sarah 5 U 3 Massialas Foundation (m Team) 1632 2052 20.7 74%
Pool
V 5:3 ANDERSON Lisa 3 U 5 West Berkeley Fencing Club 1580 2073 17.3 75%
Pool
V 5:4 WASSERMAN Isabel 6 U 4 Massialas Foundation (m Team) 1575 2090 16.6 78%
Pool
D 0:5 CHO Gracie L. 1 B19 1 San Francisco Fencers Club 2979 2107 7.4 8%
T4
V 15:5 WU Sarah 5 U 3 Massialas Foundation (m Team) 1736 2041 77.5 65%
T2
D 1:15 CHO Gracie L. 1 B19 1 San Francisco Fencers Club 3144 2118 19.4 6%

Bay Cup at AFM-SUN: Y14MF1,Y14WF1,JMF3,JWF3,WF2

Junior Women's Foil (U, JNR), November 3, 2019
Place 2 of 5, Seed 2, Not ranked, Rating U, San Francisco Fencers Club
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
V 5:0 WANG Maya 4 U 5 Massialas Foundation (M Team) 1170 2018 10.9 89%
Pool
V 5:0 PATTERSON Natalia 1 U 3 Napa Valley Fencing Academy / West Berkeley Fencing Club 1548 2029 21.0 77%
Pool
V 5:2 VINOD Amaya 5 U 3 The Fencing Center of San Jose 1326 2050 13.2 85%
Pool
D 4:5 SUN Chienyu 3 U 1 Academy of Fencing Masters 2487 2064 22.0 25%
T4
V 15:0 PATTERSON Natalia 1 U 3 Napa Valley Fencing Academy / West Berkeley Fencing Club 1719 1984 107.3 64%
T2
D 8:14 SUN Chienyu 3 U 1 Academy of Fencing Masters 2767 2091 50.8 16%

Bay Cup: JWF4 JMF4 DV1XF2 DV2WF2 DV2MF2 UWF2 UMF2

Div II Women's Foil (E1, DV2), April 28, 2019
Place 10 of 13, Seed 11, Not ranked, Rating U, San Francisco Fencers Club / Team Secret Fencing Club
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
D 0:5 KOROL Neta 6 D19 8 Academy Of Fencing Masters (afm) 2561 1969 22.5 17%
Pool
D 1:5 TALWALKAR Apoorva 5 D19 1 California Fencing Academy 2581 1947 19.8 16%
Pool
V 5:4 LIN Joyce 12 U 9 Le Club Touche / V Fencing Club 2139 1927 67.9 37%
Pool
V 5:1 MEDRANO Sue 10 U 13 West Berkeley Fencing Club / George Platt's Swordplay 2020 1995 46.3 49%
Pool
D 0:5 LEE Isabelle 4 D19 5 California Fencing Academy 2715 2041 15.4 14%
Pool
D 2:5 ZHANG Sylvia 1 C19 3 California Fencing Academy 3008 2026 7.1 6%
T16
D 3:15 HSIUNG Samantha 9 U 7 California Fencing Academy 1916 2241 257.0 67%

Bay Cup: JWF4 JMF4 DV1XF2 DV2WF2 DV2MF2 UWF2 UMF2

Unrated Women's Foil (U, U), April 28, 2019
Place 1 of 4, Seed 4, Not ranked, Rating U, San Francisco Fencers Club / Team Secret Fencing Club
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
V 5:2 POWERS Brenda B. 1 U 3 The Fencing Center 2500 1920 58.2 29%
Pool
V 5:2 KAING Selina 3 U 3 California Fencing Academy 1735 1978 35.2 61%
Pool
D 1:2 MEDRANO Sue 2 U 2 West Berkeley Fencing Club / George Platt's Swordplay 2152 2013 43.9 43%
T4
V 15:11 KAING Selina 3 U 3 California Fencing Academy 2500 1640 304.8 23%
T2
V 15:8 MEDRANO Sue 2 U 2 West Berkeley Fencing Club / George Platt's Swordplay 2490 1945 296.6 27%

Bay Cup: JWF4 JMF4 DV1XF2 DV2WF2 DV2MF2 UWF2 UMF2

Junior Women's Foil (E1, JNR), April 28, 2019
Place 9 of 12, Seed 10, Not ranked, Rating U, San Francisco Fencers Club / Team Secret Fencing Club
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
D 4:5 LIN Joyce 12 U 10 Le Club Touche / V Fencing Club 2111 1611 48.3 23%
Pool
V 5:3 KOROL Neta 5 D19 8 Academy Of Fencing Masters (afm) 2595 1563 230.8 6%
Pool
V 5:3 TALWALKAR Apoorva 4 D19 7 California Fencing Academy 2612 1794 173.2 10%
Pool
D 3:5 VOHRA Anusha 8 E19 3 California Fencing Academy 2383 1967 38.3 26%
Pool
D 2:5 ZHANG Sylvia 1 C19 1 California Fencing Academy 2981 1928 8.9 5%
T16
D 7:15 KOROL Neta 5 D19 8 Academy Of Fencing Masters (afm) 2870 1694 54.3 7%

TFC WinterFest DIV1A ROC

Div I-A Women's Foil (B2, D1A), January 12, 2019
Place 34 of 36, Seed 32, Not ranked, Rating U, San Francisco Fencers Club
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
D 0:3 UYANIK Nerine 6 B17 7 San Francisco Fencers Club 2946 1590 9.4 2%
Pool
D 3:5 THOMAS Aaria S. 19 D18 20 California Fencing Academy 2473 1581 29.4 10%
Pool
D 0:5 GOMES Rafaella T. 7 C18 3 Massialas Foundation (m Team) 2785 1551 11.7 3%
Pool
V 5:1 DOBRINEN Elizabeth 36 U 35 Fresno Fencing Academy 1460 1540 93.6 54%
Pool
D 0:5 TALWALKAR Apoorva 18 D18 8 California Fencing Academy 2553 1633 22.0 8%
T64
D 9:15 POWERS Reilly K. 24 D15 31 Golden Gate Fencing Center 2652 1816 122.2 19%

AFM Div2 ROC and RJCC

Junior Women's Foil (B2, JNR), November 25, 2018
Place 45 of 49, Seed 44, Not ranked, Rating U, San Francisco Fencers Club
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
D 1:5 CHENG Lydia A. 9 B18 17 Silicon Valley Fencing Center 2700 1491 29.7 5%
Pool
D 2:5 WANG Catherine K. 24 D18 14 Massialas Foundation (M Team) 2416 1461 47.0 10%
Pool
D 2:5 FERNANDES Thea 20 C18 37 California Fencing Academy 2722 1414 18.3 4%
Pool
D 0:5 CAO Arianna L. 6 B18 18 California Fencing Academy 3304 1396 2.6 < 1%
Pool
D 2:5 HOBSON Leena 35 E18 33 Massialas Foundation (M Team) 2170 1393 55.8 14%
Pool
V 5:1 WANG Yiran (Cindy) 37 E18 48 Orange County Fencing Center 1841 1338 252.4 24%
T64
D 5:15 POWERS Reilly K. 32 D15 23 Golden Gate Fencing Center 2742 1978 161.9 23%

AFM Div2 ROC and RJCC

Div II Women's Foil (C2, DV2), November 23, 2018
Place 30 of 32, Seed 30, Not ranked, Rating U, San Francisco Fencers Club
Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Chance of
Victory
Pool
D 3:5 KOROL Neta 7 D18 16 Academy Of Fencing Masters (AFM) 2632 2500 483.5 45%
Pool
D 4:5 VOHRA Anusha 15 E18 11 California Fencing Academy 2258 2016 299.8 39%
Pool
D 3:5 YIN Helen 24 U 20 Massialas Foundation (M Team) 2305 1717 143.5 23%
Pool
D 2:5 KIM Alyssa 4 D18 9 California Fencing Academy 2705 1573 44.5 7%
Pool
D 3:5 DUAN Konnie 17 E18 22 United Fencing Academy 2679 1529 37.6 6%
T32
D 3:15 ZHANG Sylvia 13 E18 2 California Fencing Academy 2496 2500 521.8 50%