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Statistics Profile

Jordyn Kosai

2002
Halberstadt Fencers' Club Prime Fencing Academy
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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%

Seasons start on August 1 and end on July 31.

Scores

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

† Easy victories or big losses are 4+ touches in pools, 7+ in standard DEs, and 5+ in veteran or youth DEs.

‡ Close bouts are 1 touch or fewer in pools, 3 or fewer in standard DEs, and 2 or fewer in veteran or youth DEs.

Bouts with time expired

2025-2026 2024-2025 2023-2024 2022-2023 Before 2022 All time
Victories - - - 1 2 3
Victories % - - 0.0% 12.5% 5.3% 5.9%
Losses - - - 1 5 6
Losses % - - 0.0% 4.8% 9.6% 8.0%
Total - - - 2 7 9
Total % - - 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

19 competitions, 126 bouts

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 Win
Chance
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 Win
Chance
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 Win
Chance
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 Win
Chance
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 Win
Chance
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 Win
Chance
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 Win
Chance
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 Win
Chance
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 Win
Chance
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 Win
Chance
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 36.6 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 Win
Chance
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 Win
Chance
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 Win
Chance
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 Win
Chance
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 Win
Chance
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 Win
Chance
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 Win
Chance
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 Win
Chance
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 Win
Chance
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%