The future of US Fencing is at stake!

For transparency, fairness, and athlete support, VOTE FOR:
(1) Jason Liu and (2) Abdel Salem on May 13th!

Learn More

Statistics Profile

Harrison Koss

2006
Ataba Fencing Club
Is this your profile? Register with your USFA ID to claim it.
Claim profile

Win/loss statistics

2025-2026 2024-2025 2023-2024 2022-2023 Before 2022 All time
Victories - - 21 29 1 51
Losses - - 14 27 5 46
Win ratio - - 60.0% 51.8% 16.7% 52.6%
Pool victories - - 16 23 1 40
Pool losses - - 9 19 4 32
Pool win ratio - - 64.0% 54.8% 20.0% 55.6%
DE victories - - 5 6 - 11
DE losses - - 5 8 1 14
DE win ratio - - 50.0% 42.9% 0.0% 44.0%

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† - - 3 10 - 13
Easy wins % - - 14.3% 34.5% 0.0% 25.5%
Close wins‡ - - 6 8 1 15
Close wins % - - 28.6% 27.6% 100.0% 29.4%
Close losses‡ - - 3 6 1 10
Close losses % - - 21.4% 22.2% 20.0% 21.7%
Big losses† - - 4 11 - 15
Big losses % - - 28.6% 40.7% 0.0% 32.6%

† 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 - - 2 1 - 3
Victories % - - 9.5% 3.4% 0.0% 5.9%
Losses - - - 1 - 1
Losses % - - 0.0% 3.7% 0.0% 2.2%
Total - - 2 2 - 4
Total % - - 5.7% 3.6% 0.0% 4.1%

Events

2025-2026 2024-2025 2023-2024 2022-2023 Before 2022 All time
Events - - 5 8 1 14
Tournaments - - 5 5 1 11

Competition history

14 competitions, 97 bouts

Ataba Fencing Club May Challenge

Senior Mixed Épée B2, SNR May 11, 2024

Place 16 of 27 Seed 6 Not ranked Rating C24 Ataba Fencing Club

Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Win
Chance
Pool
D 3:5 SWENSON Nikita G. 3 - B24 10 Ataba Fencing Club / Swords Fencing Studio - - - -
Pool
D 0:5 ALI Adam 14 - D23 17 Ataba Fencing Club / Skyward Fencing 1966 1962 22.1 50%
Pool
V 5:4 MCGUIRE Colman 25 - U 26 Ataba Fencing Club 1942 1940 15.2 50%
Pool
V 5:4 SCHERG Isaac 19 - U 25 Sheboygan Fencing Club 1500 1955 10.4 76%
Pool
D 1:5 CONKLIN Jim 9 - C23 6 Windy City Fencing-Chicago 2469 1965 9.5 20%
Pool
D 2:5 LEISECA Michael 27 - U 3 Madison Fencing Academy 3303 1956 1.8 4%
T32
V 15:10 ALI Adam 14 - D23 17 Ataba Fencing Club / Skyward Fencing 2180 1656 92.5 21%
T16
D 7:15 WATTANAKIT Anda 2 - B24 2 Medeo Fencing Club / Advance Fencing - - - -

Ataba Fencing Club April Challenge

Senior Mixed Épée B1, SNR April 6, 2024

Place 3 of 22 Seed 13 Not ranked Rating D24 Ataba Fencing Club

Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Win
Chance
Pool
V 5:1 MCDOWELL Will 6 - C24 7 Ataba Fencing Club 1980 1919 25.3 46%
Pool
V 3:2 IYER Ishana 3 - B23 11 Fencing Center of Chicago - - - -
Pool
V 5:1 TIERNEY Luke 10 - C23 18 Iowa City Fencing Center 1752 1945 17.3 62%
Pool
V 5:3 RITTERBUSCH Abigail 19 - U 21 Ataba Fencing Club - - - -
T16
V 15:10 SWANSON Dave 5 - B21 14 Ataba Fencing Club 2254 1411 150.4 9%
T8
V 15:11 MCDOWELL Will 6 - C24 7 Ataba Fencing Club 2093 1562 105.7 20%
T4
D 11:15 SERAFYM Damian 1 - B24 1 Advance Fencing 2542 1667 11.7 8%

Ataba Fencing Club February Challenge

Senior Mixed Épée B1, SNR February 3, 2024

Place 5 of 17 Seed 10 Not ranked Rating D23 Brookfield Academy / Ataba Fencing Club

Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Win
Chance
Pool
V 5:2 BEACH John 4 - B23 2 2519 1841 50.3 13%
Pool
V 3:2 WATTANAKIT Anda 3 - B23 12 Medeo / Advance Fencing Academy (Salle Stapien) - - - -
Pool
V 5:3 ZAKAS Anna L. 15 - E23 16 Madison Fencing Academy / DC Fencers Club - - - -
Pool
V 5:3 MCDOWELL Will 8 - C23 8 Ataba Fencing Club 2020 1891 28.3 42%
T16
V 15:9 ZAKAS Anna L. 15 - E23 16 Madison Fencing Academy / DC Fencers Club - - - -
T8
D 13:15 SERAFYM Damian 9 - C23 1 Advance Fencing 2512 1420 8.5 4%

Ataba Fencing Club December Challenge

Junior Mixed Épée E1, JNR December 16, 2023

Place 3 of 12 Seed 2 Not ranked Rating D23 Brookfield Academy / Ataba Fencing Club

Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Win
Chance
Pool
V 5:4 MITCHAM Beaudrae 10 - U 9 Ataba Fencing Club 1218 1852 9.6 85%
Pool
V 5:3 RITTERBUSCH Timothy 3 - D23 1 Ataba Fencing Club 1806 1861 25.1 54%
Pool
V 5:1 HULL Ilsa 11 - U 8 Ataba Fencing Club - - - -
Pool
D 3:5 KOSS Everett 7 - U 7 Ataba Fencing Club 1177 1886 52.7 87%
Pool
V 5:2 SADLER August 6 - U 2 Ataba Fencing Club 1098 1834 7.0 88%
T8
V 15:11 KOSS Everett 7 - U 7 Ataba Fencing Club 1576 1408 89.8 41%
T4
D 10:15 SADLER August 6 - U 2 Ataba Fencing Club 1428 1498 78.1 54%

The Margherita Guzzi Vincenti Cup

Senior Mixed Épée A2, SNR September 16, 2023

Place 26 of 39 Seed 26 Not ranked Rating D23 Brookfield Academy / Ataba Fencing Club

Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Win
Chance
Pool
D 3:5 CURTY Jack 27 - D22 11 Ataba Fencing Club 1982 1835 25.1 41%
Pool
D 4:5 KUNJAN Lena 10 - B22 10 Twin Cities Fencing Club - - - -
Pool
V 5:2 ST. GEORGE David J J. 35 - E21 32 Crimson Blades Fencing Academy / Illinois Fencers Club 1781 1810 24.1 52%
Pool
D 3:5 JOVANOVIC Jovan 3 - A23 1 Fencing Center of Chicago 2957 1834 2.8 3%
Pool
D 4:5 BAMPTON Nicholas 18 - C23 16 The Point Fencing Club / Richmond Fencing Club 2497 1831 9.4 14%
Pool
V 5:4 MALEADY Sean 37 - U 15 H-F High School / North West Indiana fencing club 1869 1822 29.9 47%
T32
D 6:15 TOLLEFSEN Zachary 8 - B23 6 Twin Cities Fencing Club / N/A 1963 1449 40.9 22%

Ataba Fencing Club April Challenge

Senior Mixed Épée B1, SNR April 8, 2023

Place 6 of 24 Seed 17 Not ranked Rating E23 Ataba Fencing Club

Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Win
Chance
Pool
V 5:2 MCDOWELL Will 9 - C23 12 Ataba Fencing Club 1798 1680 40.7 42%
Pool
V 5:2 RITTERBUSCH Timothy 10 - D23 17 Ataba Fencing Club 1793 1720 36.9 45%
Pool
V 5:4 BEACH John 1 - B23 2 2675 1757 77.7 7%
Pool
V 5:3 ZAKAS Anna L. 16 - E23 15 Madison Fencing Academy / DC Fencers Club - - - -
Pool
V 5:1 IBANEZ-BALDOR Amaya 24 - U 22 Caliburn Fencing Club - - - -
T16
V 15:10 MCCORD Jack 14 - D22 14 Ataba Fencing Club 1734 1375 156.8 30%
T8
D 7:15 BRADFORD Ethan 12 - D22 3 Ataba Fencing Club 1645 1531 82.3 43%

Ataba Fencing Club April Challenge

Junior Mixed Épée C1, JNR April 8, 2023

Place 8 of 15 Seed 7 Not ranked Rating E23 Ataba Fencing Club

Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Win
Chance
Pool
V 5:2 SADLER August 10 - U 13 Ataba Fencing Club 989 1874 9.2 92%
Pool
D 2:5 BRADFORD Ethan 6 - D22 3 Ataba Fencing Club 1697 1884 54.6 62%
Pool
D 3:5 RITTERBUSCH Timothy 3 - D23 3 Ataba Fencing Club 1827 1829 41.1 50%
Pool
D 3:5 MCDOWELL Will 2 - C23 2 Ataba Fencing Club 1747 1788 41.0 53%
Pool
V 5:2 RITTERBUSCH Abigail 11 - U 9 Ataba Fencing Club - - - -
Pool
D 3:5 MITCHAM Beaudrae 14 - U 14 Ataba Fencing Club 1176 1747 67.2 82%
T16
V 15:3 RITTERBUSCH Abigail 11 - U 9 Ataba Fencing Club - - - -
T8
D 6:15 WATTANAKIT Anda 1 - C23 1 Advance Fencing Academy (Salle Stepien) - - - -

GLHSFC CHAMPIONSHIPS = Final

Men's Épée U January 28, 2023

Place 39 of 46 Seed 44 Not ranked Rating E23 Brookfield Academy / Ataba Fencing Club

Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Win
Chance
Pool
V 5:4 WEATHERLY Hugh 11 - U 37 LHS-VHHS Thundercats 1158 1887 14.7 85%
Pool
D 2:5 KTSANES Charles Missing ID 17 - U 27 New Trier High School - - - -
Pool
D 4:5 HAN Pleroma Missing ID 39 - U 15 Deerfield-Highland Park - - - -
Pool
D 0:5 LI Chenyu (Charlie) 3 - C23 2 Culver Military Academy 2261 1902 27.5 28%
Pool
V 5:1 LEE Daniel Missing ID 31 - U 45 Glenbrook South High School - - - -
Pool
D 3:5 IVANOV Phillip Missing ID 26 - U 6 Stevenson High School Fencing Team - - - -
T64
D 13:15 GREENE Patrick 7 - E22 8 Culver Military Academy 1916 1435 60.5 26%

Great Lakes Junior Varsity Championship (Men's Events)

E & Under Men's Épée E1, E January 21, 2023

Place 10 of 62 Seed 54 Not ranked Rating U Brookfield Academy / Ataba Fencing Club

Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Win
Chance
Pool
V 5:3 NEHRING Luke Missing ID 61 - U 52 New Trier High School / 15th Touch Fencing - - - -
Pool
V 5:4 GLEN Ethan Missing ID 20 - U 7 Stevenson High School - - - -
Pool
V 4:3 BELUE William 35 - U 27 H-F High School 2500 1899 46.8 28%
Pool
D 0:5 BALCHAN Adam 38 - U 19 Maine West 1700 1945 58.1 64%
Pool
V 5:0 PULTORAK Jack Missing ID 2 - U 26 Evanston Township High School - - - -
Pool
V 5:0 DRISKILL Cameron Missing ID 17 - U 62 Glenbrook South High School - - - -
T64
V 15:4 JURY Griffin Missing ID 18 - U 56 H-F High School - - - -
T32
V 15:3 MILEN Christopher Missing ID 41 - U 25 Marian Catholic High School / Spartan Fencing Academy - - - -
T16
D 13:15 CUI Franklin Missing ID 13 - U 2 New Trier High School - - - -

Ataba Fencing Club January Challenge

Junior Mixed Épée C1, JNR January 14, 2023

Place 6 of 15 Seed 10 Not ranked Rating U Ataba Fencing Club / Brookfield Academy

Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Win
Chance
Pool
V 5:4 MCCORD Jack 4 - D22 8 Ataba Fencing Club 1618 1858 45.0 64%
Pool
V 5:0 MITCHAM Beaudrae 15 - U 14 Ataba Fencing Club 1396 1903 27.5 78%
Pool
D 3:5 CURTY Jack 3 - D22 5 Ataba Fencing Club 2010 1930 51.0 45%
Pool
V 5:0 KOSS Everett 9 - U 12 Ataba Fencing Club 1251 1879 19.5 83%
T16
V 15:13 SADLER August 7 - U 13 Ataba Fencing Club 1481 1361 160.9 44%
T8
D 14:15 RITTERBUSCH Timothy 6 - E22 3 Ataba Fencing Club 1856 1521 86.4 32%

The Margherita Guzzi Vincenti Cup

Senior Mixed Épée A2, SNR October 29, 2022

Place 35 of 43 Seed 43 Not ranked Rating U Ataba Fencing Club / Brookfield Academy

Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Win
Chance
Pool
V 5:3 MCDOWELL Will 27 - E22 32 Ataba Fencing Club 1713 1904 61.1 61%
Pool
D 2:5 LE BIHAN Henri 13 - B19 3 Windy City Fencing 2700 1965 22.3 13%
Pool
D 0:5 DOROSHKEVICH Victoria 2 - A22 12 Fencing Center of Chicago - - - -
Pool
D 1:5 TAKATA Ben 17 - C22 6 Center for Blade Arts 2358 1943 38.4 26%
Pool
D 4:5 WEINSTEIN Ethan 31 - U 26 Fencing Club of the University of Wisconsin Madison / Recplex 2033 1905 47.3 44%
T64
D 1:15 BANSAL Shaurya 38 - U 31 Ataba Fencing Club 1559 1524 163.3 48%

The Margherita Guzzi Vincenti Cup

Cadet Mixed Épée D1, CDT October 29, 2022

Place 12 of 17 Seed 11 Not ranked Rating U Ataba Fencing Club / Brookfield Academy

Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Win
Chance
Pool
V 5:2 SADLER August 8 - U 16 Ataba Fencing Club 1031 1793 47.0 83%
Pool
D 3:5 BANSAL Shaurya 14 - U 5 Ataba Fencing Club 1632 1840 163.6 62%
Pool
V 5:3 SERAFYM Damian 16 - U 3 Advance Fencing Academy (Salle Stapien) 1933 1676 149.2 35%
Pool
V 5:1 RITTERBUSCH Timothy 5 - U 13 Ataba Fencing Club 2183 1825 136.0 30%
Pool
D 1:5 SPINA Joseph 2 - C22 1 Fencing Center of Chicago 2271 1961 56.9 32%
T16
D 7:15 WILLIAMS Logan 13 - U 6 Fencing Center of Chicago 1455 1823 299.4 68%

The Margherita Guzzi Vincenti Cup

Junior Mixed Épée A2, JNR October 29, 2022

Place 14 of 30 Seed 20 Not ranked Rating U Ataba Fencing Club / Brookfield Academy

Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Win
Chance
Pool
V 5:4 MCDOWELL Will 11 - E22 27 Ataba Fencing Club 1740 1812 189.1 54%
Pool
D 2:5 SAHA Sayan 10 - E22 17 Ataba Fencing Club 1765 2001 208.2 62%
Pool
D 1:5 PETERSON Clio 30 - U 19 Center for Blade Arts - - - -
Pool
D 3:4 TYLER Syd (Sydney) 1 - A22 1 Windy City Fencing-Chicago - - - -
Pool
V 5:2 HO Darlene 22 - U 25 Advanced Fencing Academy Salle Stepien - - - -
T32
V 15:12 BANSAL Shaurya 29 - U 20 Ataba Fencing Club 1563 1792 277.3 60%
T16
D 8:15 MILLER Lance W. 2 - A22 3 Grand Rapids Fencing Academy 2240 2069 246.0 42%

Ataba Fencing Club April Challenge

Senior Mixed Épée B2, SNR April 10, 2022

Place 21 of 30 Seed 20 Not ranked Rating U Ataba Fencing Club / Brookfield Academy

Bout Score Opponent Seed Rank Rating Place Club Opponent
Strength		 Strength Change Win
Chance
Pool
D 3:5 GLASS Timothy C
1 - A20 10 Ataba Fencing Club / Illinois Fencers Club 2762 2500 435.1 40%
Pool
D 4:5 BOLES Savvianna 11 - D22 26 Ataba Fencing Club - - - -
Pool
D 2:5 KARNAS Karol 10 - C22 2 Fencing Center of Chicago 2357 2065 291.7 37%
Pool
D 3:5 SHIRLEY Patrick 30 - U 18 Madison Fencing Academy 2122 1773 179.2 36%
Pool
V 5:4 CURTY Jack 27 - U 22 Ataba 1514 1594 217.8 54%
T32
D 11:15 MCDOWELL Will 24 - U 13 Ataba Fencing Club 1983 2500 708.0 68%