Harrison Koss

2006

Win/Loss Statistics

2024-2025 2023-2024 2022-2023 2021-2022 Before 2021 All Time
Victories - 21 29 - - 50
Losses - 14 27 - - 41
Win Ratio - 60.0% 51.8% - - 54.9%
Pool Victories - 16 23 - - 39
Pool Losses - 9 19 - - 28
Pool Win Ratio - 64.0% 54.8% - - 58.2%
DE Victories - 5 6 - - 11
DE Losses - 5 8 - - 13
DE Win Ratio - 50.0% 42.9% - - 45.8%

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† - 3 10 - - 13
Easy wins as % of wins - 14.3% 34.5% - - 26.0%
Close wins‡ - 6 8 - - 14
Close wins as % of all wins - 28.6% 27.6% - - 28.0%
Close losses‡ - 3 6 - - 9
Close losses as % of all losses - 21.4% 22.2% - - 22.0%
Big losses† - 4 11 - - 15
Big losses as % of all losses - 28.6% 40.7% - - 36.6%

† 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

2024-2025 2023-2024 2022-2023 2021-2022 Before 2021 All Time
Victories - 2 1 - - 3
Victories as % of all victories - 9.5% 3.4% - - 6.0%
Losses - - 1 - - 1
Losses as % of all losses - 0.0% 3.7% - - 2.4%
Total - 2 2 - - 4
Total as % of all bouts - 5.7% 3.6% - - 4.4%

Events

2024-2025 2023-2024 2022-2023 2021-2022 Before 2021 All Time
Events - 5 8 - - 13
Tournaments - 5 5 - - 10

Competition History

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 Chance of
Victory
Pool L 3:5 SWENSON Nikita G. 3 B24 10 Ataba Fencing Club / Swords Fencing Studio
Pool L 0:5 ALI Adam 14 D23 17 Ataba Fencing Club / Skyward Fencing 1965 1987 24.6 51%
Pool W 5:4 MCGUIRE Colman 25 U 26 Ataba Fencing Club 1941 1962 16.0 51%
Pool W 5:4 SCHERG Isaac 19 U 25 Sheboygan Fencing Club 1583 1978 12.2 72%
Pool L 1:5 CONKLIN Jim 9 C23 6 Windy City Fencing-Chicago 2469 1990 10.6 22%
Pool L 2:5 LEISECA Michael 27 U 3 Madison Fencing Academy 3308 1980 2.0 4%
T32 W 15:10 ALI Adam 14 D23 17 Ataba Fencing Club / Skyward Fencing 2183 1682 94.8 22%
T16 L 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 Chance of
Victory
Pool W 5:1 MCDOWELL Will 6 C24 7 Ataba Fencing Club 1981 1942 26.5 47%
Pool W 3:2 IYER Ishana 3 B23 11 Fencing Center of Chicago
Pool W 5:1 TIERNEY Luke 10 C23 18 Iowa City Fencing Center 1743 1969 17.8 64%
Pool W 5:3 RITTERBUSCH Abigail 19 U 21 Ataba Fencing Club
T16 W 15:10 SWANSON Dave 5 B21 14 Ataba Fencing Club 2254 1431 156.6 10%
T8 W 15:11 MCDOWELL Will 6 C24 7 Ataba Fencing Club 2083 1587 107.7 22%
T4 L 11:15 SERAFYM Damian 1 B24 1 Advance Fencing 2551 1695 12.9 9%

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 Chance of
Victory
Pool W 5:2 BEACH John 4 B23 2 2521 1859 53.8 14%
Pool W 3:2 WATTANAKIT Anda 3 B23 12 Medeo / Advance Fencing Academy (Salle Stapien)
Pool W 5:3 ZAKAS Anna L. 15 E23 16 Madison Fencing Academy / DC Fencers Club
Pool W 5:3 MCDOWELL Will 8 C23 8 Ataba Fencing Club 2021 1912 29.9 43%
T16 W 15:9 ZAKAS Anna L. 15 E23 16 Madison Fencing Academy / DC Fencers Club
T8 L 13:15 SERAFYM Damian 9 C23 1 Advance Fencing 2521 1440 9.5 5%

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 Chance of
Victory
Pool W 5:4 MITCHAM Beaudrae 10 U 9 Ataba Fencing Club 1221 1873 10.1 85%
Pool W 5:3 RITTERBUSCH Timothy 3 D23 1 Ataba Fencing Club 1809 1883 26.8 55%
Pool W 5:1 HULL Ilsa 11 U 8 Ataba Fencing Club
Pool L 3:5 KOSS Everett 7 U 7 Ataba Fencing Club 1179 1910 58.4 88%
Pool W 5:2 SADLER August 6 U 2 Ataba Fencing Club 1096 1851 7.3 89%
T8 W 15:11 KOSS Everett 7 U 7 Ataba Fencing Club 1569 1433 93.3 42%
T4 L 10:15 SADLER August 6 U 2 Ataba Fencing Club 1432 1526 85.6 56%

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 Chance of
Victory
Pool L 3:5 CURTY Jack 27 D22 11 Ataba Fencing Club 1986 1857 28.8 42%
Pool L 4:5 KUNJAN Lena 10 B22 10 Twin Cities Fencing Club
Pool W 5:2 ST. GEORGE David J J. 35 E21 32 Crimson Blades Fencing Academy / Illinois Fencers Club 1781 1829 26.2 53%
Pool L 3:5 JOVANOVIC Jovan 3 A23 1 Fencing Center of Chicago 2950 1855 3.5 4%
Pool L 4:5 BAMPTON Nicholas 18 C23 16 The Point Fencing Club / Richmond Fencing Club 2497 1851 10.9 15%
Pool W 5:4 MALEADY Sean 37 U 15 H-F High School / North West Indiana fencing club 1869 1841 32.1 48%
T32 L 6:15 TOLLEFSEN Zachary 8 B23 6 Twin Cities Fencing Club / N/A 1965 1479 46.6 24%

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 Chance of
Victory
Pool W 5:2 MCDOWELL Will 9 C23 12 Ataba Fencing Club 1805 1684 46.3 42%
Pool W 5:2 RITTERBUSCH Timothy 10 D23 17 Ataba Fencing Club 1798 1730 41.4 46%
Pool W 5:4 BEACH John 1 B23 2 2677 1771 86.1 7%
Pool W 5:3 ZAKAS Anna L. 16 E23 15 Madison Fencing Academy / DC Fencers Club
Pool W 5:1 IBANEZ-BALDOR Amaya 24 U 22 Caliburn Fencing Club
T16 W 15:10 MCCORD Jack 14 D22 14 Ataba Fencing Club 1726 1410 165.8 33%
T8 L 7:15 BRADFORD Ethan 12 D22 3 Ataba Fencing Club 1635 1575 96.4 46%

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 Chance of
Victory
Pool W 5:2 SADLER August 10 U 13 Ataba Fencing Club 984 1916 9.8 92%
Pool L 2:5 BRADFORD Ethan 6 D22 3 Ataba Fencing Club 1695 1926 67.3 64%
Pool L 3:5 RITTERBUSCH Timothy 3 D23 3 Ataba Fencing Club 1832 1859 49.4 52%
Pool L 3:5 MCDOWELL Will 2 C23 2 Ataba Fencing Club 1754 1809 48.2 53%
Pool W 5:2 RITTERBUSCH Abigail 11 U 9 Ataba Fencing Club
Pool L 3:5 MITCHAM Beaudrae 14 U 14 Ataba Fencing Club 1178 1761 77.5 82%
T16 W 15:3 RITTERBUSCH Abigail 11 U 9 Ataba Fencing Club
T8 L 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 Chance of
Victory
Pool W 5:4 WEATHERLY Hugh 11 U 37 LHS-VHHS Thundercats 1152 1936 16.0 86%
Pool L 2:5 KTSANES Charles 17 U 27 New Trier High School
Pool L 4:5 HAN Pleroma 39 U 15 Deerfield-Highland Park
Pool L 0:5 LI Chenyu (Charlie) 3 C23 2 Culver Military Academy 2261 1952 35.7 31%
Pool W 5:1 LEE Daniel 31 U 45 Glenbrook South High School
Pool L 3:5 IVANOV Phillip 26 U 6 Stevenson High School Fencing Team
T64 L 13:15 GREENE Patrick 7 E22 8 Culver Military Academy 1916 1483 73.3 28%

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 Chance of
Victory
Pool W 5:3 NEHRING Luke 61 U 52 New Trier High School / 15th Touch Fencing
Pool W 5:4 GLEN Ethan 20 U 7 Stevenson High School
Pool W 4:3 BELUE William 35 U 27 H-F High School 2500 1955 55.5 30%
Pool L 0:5 BALCHAN Adam 38 U 19 Maine West 1700 2011 75.0 67%
Pool W 5:0 PULTORAK Jack 2 U 26 Evanston Township High School
Pool W 5:0 DRISKILL Cameron 17 U 62 Glenbrook South High School
T64 W 15:4 JURY Griffin 18 U 56 H-F High School
T32 W 15:3 MILEN Christopher 41 U 25 Marian Catholic High School / Spartan Fencing Academy
T16 L 13:15 CUI Franklin 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 Chance of
Victory
Pool W 5:4 MCCORD Jack 4 D22 8 Ataba Fencing Club 1620 1918 53.1 67%
Pool W 5:0 MITCHAM Beaudrae 15 U 14 Ataba Fencing Club 1397 1971 31.1 81%
Pool L 3:5 CURTY Jack 3 D22 5 Ataba Fencing Club 2020 2002 69.0 49%
Pool W 5:0 KOSS Everett 9 U 12 Ataba Fencing Club 1261 1933 22.3 85%
T16 W 15:13 SADLER August 7 U 13 Ataba Fencing Club 1485 1416 177.9 47%
T8 L 14:15 RITTERBUSCH Timothy 6 E22 3 Ataba Fencing Club 1851 1594 110.6 36%

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 Chance of
Victory
Pool W 5:3 MCDOWELL Will 27 E22 32 Ataba Fencing Club 1734 2008 76.6 66%
Pool L 2:5 LE BIHAN Henri 13 B19 3 Windy City Fencing 2700 2085 39.7 18%
Pool L 0:5 DOROSHKEVICH Victoria 2 A22 12 Fencing Center of Chicago
Pool L 1:5 TAKATA Ben 17 C22 6 Center for Blade Arts 2358 2045 60.6 32%
Pool L 4:5 WEINSTEIN Ethan 31 U 26 Fencing Club of the University of Wisconsin Madison / Recplex 2039 1985 66.8 47%
T64 L 1:15 BANSAL Shaurya 38 U 31 Ataba Fencing Club 1603 1622 206.0 51%

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 Chance of
Victory
Pool W 5:2 SADLER August 8 U 16 Ataba Fencing Club 1036 1946 85.2 85%
Pool L 3:5 BANSAL Shaurya 14 U 5 Ataba Fencing Club 1632 2031 351.4 70%
Pool W 5:3 SERAFYM Damian 16 U 3 Advance Fencing Academy (Salle Stapien) 1933 1680 240.7 36%
Pool W 5:1 RITTERBUSCH Timothy 5 U 13 Ataba Fencing Club 2200 1921 191.8 35%
Pool L 1:5 SPINA Joseph 2 C22 1 Fencing Center of Chicago 2271 2112 104.1 41%
T16 L 7:15 WILLIAMS Logan 13 U 6 Fencing Center of Chicago 1455 2076 454.6 77%

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 Chance of
Victory
Pool W 5:4 MCDOWELL Will 11 E22 27 Ataba Fencing Club 1744 2500 267.3 77%
Pool L 2:5 SAHA Sayan 10 E22 17 Ataba Fencing Club 1766 2767 821.1 86%
Pool L 1:5 PETERSON Clio 30 U 19 Center for Blade Arts
Pool L 3:4 TYLER Syd (Sydney) 1 A22 1 Windy City Fencing-Chicago
Pool W 5:2 HO Darlene 22 U 25 Advanced Fencing Academy Salle Stepien
T32 W 15:12 BANSAL Shaurya 29 U 20 Ataba Fencing Club 1563 2500 218.3 80%
T16 L 8:15 MILLER Lance W. 2 A22 3 Grand Rapids Fencing Academy 2240 2718 642.0 69%