Dylan CO
🇺🇸 USA · Massialas Foundation (M Team) · Left-handed
Men’s Foil, 2018–2026
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About this fencer
FIE 67888 · USA 100254155
USA Fencing rating: Foil A2025
USA Fencing classifications run from A to E; U means unrated. A year after the letter is the year that classification was earned.
Record and rankings
Counts cover published results recorded here. Verified source copies count once; other source records remain separate.
- Results
- 126
- Podiums
- 11
- Competitions won
- 4
- FIE ranking
- 134th Junior Foil · 2026–27
- Best finish
- 1st of 137, Cobra Challenge SYC/RCC/Y8, November 2022
Winner1stTop quarter¼Halfway½LastLast 69th of 249, Junior Men’s Foil, FIE Junior World Cup, Budapest 2026, 2026-11-07 19th of 260, Senior Division I Men’s Foil, October NAC, 2026-10-09 19th of 118, Div I Elite Men’s Foil, October NAC, October Orlando, FL, USA 2026, 2026-10-09 19th of 236, Junior Men’s Foil, FIE Junior World Cup, Samsun 2026, 2026-09-26 19th of 235, Junior Men’s Foil, Cadet & Junior Foil World Cup, 2026-09-23 153rd of 184, Div I Men’s Foil, Summer Nationals and July Challenge, 2026-06-27 21st of 323, Junior Men’s Foil, Summer Nationals and July Challenge, Portland, OR, 2026-06-27 153rd of 184, Senior Division I Men’s Foil, Summer Nationals and July Challenge, Portland, OR, 2026-06-27 20th of 176, Junior Men’s Foil, Division 1 & Para Championships / April NAC, 2026-04-24 20th of 135, Senior Division I Men’s Foil, Division 1 & Para Championships / April NAC, 2026-04-24 19th of 247, Junior Men’s Foil, February NAC, 2026-02-12 19th of 314, Senior Division I Men’s Foil, February NAC, 2026-02-12 9th of 345, Junior Men’s Foil, Junior Olympics, 2026-01-09 28th of 198, Junior Men’s Foil, FIE Junior World Cup, Bangkok 2025, 2025-12-14 19th of 325, Senior Division I Men’s Foil, November NAC, Fort Worth, TX, 2025-11-14 57th of 337, Junior Men’s Foil, October NAC, Salt Lake City, UT, 2025-10-03 139th of 306, Senior Division I Men’s Foil, October NAC, Salt Lake City, UT, 2025-10-03 1st of 71, Senior Division IA Men’s Foil, BladeRunner ROC/RJC, September 2025, 2025-09-20 6th of 69, Junior Men’s Foil, BladeRunner ROC/RJC, September 2025, 2025-09-20 92nd of 401, Junior Men’s Foil, National Championships and July Challenge (Summer Nationals), Milwaukee, WI, 2025-06-28 55th of 226, Senior Division I Men’s Foil, National Championships and July Challenge (Summer Nationals), Milwaukee, WI, 2025-06-28 3rd of 139, Junior Men’s Foil, May SJCC, 2025-05-16 14th of 378, Junior Men’s Foil, Division 1/Para Championships + April NAC, 2025-04-11 14th of 378, Junior Men’s Foil, Division 1/Para Championships + April NAC, 2025-04-11 8th of 158, Senior Division I Men’s Foil, Division 1/Para Championships + April NAC, 2025-04-11 16th of 97, Junior Men’s Foil, Fortune SYC/RJCC & Y8, 2025-03-28 33rd of 353, Cadet Men’s Foil, Junior Olympics & Div 1 NAC, 2025-02-14 45th of 396, Junior Men’s Foil, Junior Olympics & Div 1 NAC, 2025-02-14 31st of 235, Senior Division I Men’s Foil, Junior Olympics & Div 1 NAC, 2025-02-14 17th of 164, Cadet Men’s Foil, EFC Cadets Circuit Sofia 2025, 2025-02-08 77th of 265, Senior Division I Men’s Foil, January NAC, January 2025, 2025-01-03 3rd of 162, Cadet Men’s Foil, January NAC, January 2025, 2025-01-03 22nd of 230, Cadet Men’s Foil, EFC Cadet Circuit Cabries 2024, 2024-12-07 24th of 363, Cadet Men’s Foil, EFC Cadets Circuit Budapest Foil 2024, 2024-11-16 3rd of 338, Cadet Men’s Foil, November NAC, Louisville, KY, 2024-11-08 65th of 335, Junior Men’s Foil, November NAC, Louisville, KY, 2024-11-08 38th of 263, Cadet Men’s Foil, EFC Cadet Circuit Samorin 2024, 2024-10-11 57th of 343, Junior Men’s Foil, October NAC, Atlantic City, NJ, 2024-10-04 84th of 343, Senior Division I Men’s Foil, October NAC, Atlantic City, NJ, 2024-10-04 9th of 90, Senior Division IA Men’s Foil, BladeRunner ROC/RJC, September 2024, 2024-09-14 9th of 84, Junior Men’s Foil, BladeRunner ROC/RJC, September 2024, 2024-09-14 83rd of 212, Senior Division I Men’s Foil, National Championships and July Challenge (Summer Nationals), Columbus, OH, 2024-06-29 25th of 327, Cadet Men’s Foil, National Championships and July Challenge (Summer Nationals), Columbus, OH, 2024-06-29 94th of 423, Junior Men’s Foil, National Championships and July Challenge (Summer Nationals), Columbus, OH, 2024-06-29 77th of 175, Senior Division I Men’s Foil, Division 1/Parafencing National Championships + April NAC, 2024-04-25 44th of 186, Junior Men’s Foil, Division 1/Parafencing National Championships + April NAC, 2024-04-25 6th of 152, Cadet Men’s Foil, March SJCC, 2024-03-15 9th of 212, Junior Men’s Foil, March SJCC, 2024-03-15 5th of 275, Cadet Men’s Foil, March NAC, Portland, OR, 2024-03-01 14th of 349, Cadet Men’s Foil, Junior Olympics, February 2024, 2024-02-16 19th of 350, Junior Men’s Foil, Junior Olympics, February 2024, 2024-02-16 19th of 346, Junior (2) Men’s Foil, Junior Olympics, February 2024, 2024-02-16 3rd of 82, Senior Division IA Men’s Foil, The Battle of the Bay Div1A ROC, 2024-02-03 117th of 269, Senior Division I Men’s Foil, January NAC, January 2024, 2024-01-05 221st of 340, Junior Men’s Foil, January NAC, January 2024, 2024-01-05 1st of 64, Junior Men’s Foil, The Fencing Center Winter RJCC, December 2023, 2023-12-08 91st of 205, Senior Division I Men’s Foil, December SJCC + Division 1 NAC, 2023-12-01 15th of 239, Junior Men’s Foil, December SJCC + Division 1 NAC, 2023-12-01 11th of 183, Cadet Men’s Foil, December SJCC + Division 1 NAC, 2023-12-01 33rd of 302, Cadet Men’s Foil, November NAC, November 2023, 2023-11-10 66th of 408, Junior Men’s Foil, November NAC, November 2023, 2023-11-10 49th of 244, Cadet Men’s Foil, October NAC, October 2023, 2023-10-26 207th of 249, Senior Division I Men’s Foil, October NAC, October 2023, 2023-10-26 9th of 85, Junior Men’s Foil, AFM Super Regional SYC/RJCC/ROC Div1A/Vet, October 2023, 2023-10-06 13th of 83, Senior Division IA Men’s Foil, AFM Super Regional SYC/RJCC/ROC Div1A/Vet, October 2023, 2023-10-06 8th of 70, Senior Division IA Men’s Foil, BladeRunner ROC / RJC, 2023-09-16 17th of 73, Junior Men’s Foil, BladeRunner ROC / RJC, 2023-09-16 17th of 325, Y14 Men’s Foil, National Championships & July Challenge (Summer Nationals), 2023-06-30 96th of 410, Junior Men’s Foil, National Championships & July Challenge (Summer Nationals), 2023-06-30 68th of 198, Senior Division IA Men’s Foil, National Championships & July Challenge (Summer Nationals), 2023-06-30 71st of 296, Cadet Men’s Foil, National Championships & July Challenge (Summer Nationals), 2023-06-30 9th of 72, Senior Division IA Men’s Foil, Fortune Fencing ROC(DV1A, DV2, VET), RJCC & Non-Regional Y8, 2023-04-08 15th of 82, Junior Men’s Foil, Fortune Fencing ROC(DV1A, DV2, VET), RJCC & Non-Regional Y8, 2023-04-08 43rd of 235, Cadet Men’s Foil, March NAC and Parafencing National Championships, 2023-03-03 21st of 277, Y14 Men’s Foil, March NAC and Parafencing National Championships, 2023-03-03 105th of 319, Cadet Men’s Foil, Junior Olympics, February 2023, 2023-02-17 85th of 386, Junior Men’s Foil, Junior Olympics, February 2023, 2023-02-17 70th of 355, Junior Men’s Foil, December NAC, December 2022, 2022-12-09 173rd of 222, Senior Division I Men’s Foil, December NAC, December 2022, 2022-12-09 101st of 243, Cadet Men’s Foil, December NAC, December 2022, 2022-12-09 28th of 128, Cadet Men’s Foil, Cobra Challenge SYC/RCC/Y8, November 2022, 2022-11-25 1st of 137, Y14 Men’s Foil, Cobra Challenge SYC/RCC/Y8, November 2022, 2022-11-25 2nd of 74, Junior Men’s Foil, AFM Super Regional SYC/RJCC/ROC (D1A/VET), 2022-11-04 73rd of 275, Cadet Men’s Foil, October NAC, October 2022, 2022-10-07 7th of 140, Y14 Men’s Foil, October NAC, October 2022, 2022-10-07 3rd of 108, Cadet Men’s Foil, South Coast RJCC/ROC, 2022-09-23 15th of 122, Junior Men’s Foil, South Coast RJCC/ROC, 2022-09-23 38th of 89, Junior Men’s Foil, Fortune Fencing Summer RYC/RJCC & Y8 (Non-Regional), 2022-08-27 9th of 94, Cadet Men’s Foil, Fortune Fencing Summer RYC/RJCC & Y8 (Non-Regional), 2022-08-27 15th of 290, Y14 Men’s Foil, USA Fencing National Championships & July Challenge, July 2022, 2022-07-02 68th of 297, Cadet Men’s Foil, USA Fencing National Championships & July Challenge, July 2022, 2022-07-02 238th of 385, Junior Men’s Foil, USA Fencing National Championships & July Challenge, July 2022, 2022-07-02 17th of 57, Cadet Men’s Foil, Collegiate Cup RJCC, May 2022, 2022-05-21 24th of 76, Junior Men’s Foil, Collegiate Cup RJCC, May 2022, 2022-05-21 20th of 193, Cadet Men’s Foil, Division I and Parafencing Nat'l Championships & April NAC, 2022-04-21 16th of 159, Senior Division II (C and under) Men’s Foil, Division I and Parafencing Nat'l Championships & April NAC, 2022-04-21 8th of 69, Y14 Men’s Foil, Silicon Valley RYC/RCC, Fremont, CA, 2022-04-08 11th of 68, Cadet Men’s Foil, 3rd Annual Precision Invitational RJCC, 2022-02-12 16th of 67, Junior Men’s Foil, 3rd Annual Precision Invitational RJCC, 2022-02-12 1st of 63, Y14 Men’s Foil, Treasure Chest RYC, January 2022, 2022-01-15 14th of 70, Cadet Men’s Foil, The Austin Challenge SYC and RCC, 2021-12-18 27th of 64, Junior Men’s Foil, The Fencing Center RJCC, December 2021, 2021-12-04 13th of 70, Cadet Men’s Foil, The Fencing Center RJCC, December 2021, 2021-12-04 55th of 129, Cadet Men’s Foil, Cobra Challenge SYC-RCC, 2021-11-26 19th of 148, Y14 Men’s Foil, Cobra Challenge SYC-RCC, 2021-11-26 9th of 108, Y14 Men’s Foil, The Fencing Center SYC, November 2021, 2021-11-19 109th of 247, Cadet Men’s Foil, October NAC, October 2021, 2021-10-29 53rd of 152, Y14 Men’s Foil, October NAC, October 2021, 2021-10-29 6th of 85, Y14 Men’s Foil, 3rd Annual Socal Clash RYC and RJC, 2021-10-16 16th of 103, Y14 Men’s Foil, The Fencing Center RYC, October 2021, 2021-10-01 21st of 141, Y12 Men’s Foil, National Championships, Junior Olympic Championships & July NAC, 2021-07-03 55th of 120, Y14 Men’s Foil, Cobra Challenge SYC/RCC Reg Open 4/10, 2021-05-29 29th of 79, Y12 Men’s Foil, Cobra Challenge SYC/RCC Reg Open 4/10, 2021-05-29 2nd of 22, Y12 Men’s Foil, The Fencing Center RYC Reg Opens 4/27, 2021-05-14 6th of 22, Y12 Men’s Foil, TFC Downtown RYC Reg Opens 3/30, 2021-04-23 11th of 27, Y12 Men’s Foil, Bay Cup at TFC: Y10, Y12, Y14 Foil, 2020-03-08 38th of 76, Y12 Men’s Foil, Treasure Chest RYC 2020, 2020-01-18 29th of 49, Y12 Men’s Foil, 2nd Annual SoCal Clash RYC & RJC, 2019-12-07 27th of 48, Y12 Men’s Foil, Bay Cup at AFM-SUN: Y10, Y12 Epee & Foil, 2019-10-27 80th of 100, Y12 Men’s Foil, The Fencing Center SYC, October 2019, 2019-10-04 19th of 40, Y10 Men’s Foil, Treasure Chest RYC, January 2019, 2019-01-19 18th of 26, Y10 Men’s Foil, Bay Cup at TFC: Y10WF3, Y10MF3, Y12WF3, Y12MF3, 2019-01-06 13th of 32, Y10 Men’s Foil, The Fencing Center RYC - Region 4, 2018-11-30 38th of 82, Y12 Men’s Foil, The Fencing Center RYC - Region 4, 2018-11-30 6th of 16, Y10 Men’s Foil, Bay Cup at TFC:Y10WF2 Y10MF2 Y12WF2 Y12MF2 XF2 WF2, 2018-10-21 11th of 39, Y10 Men’s Foil, AFM Start of Season RYC, 2018-09-28
Results
Results: 126
| When | Competition | Event | Place |
|---|---|---|---|
| 28 Jun 2025 | National Championships and July Challenge (Summer Nationals), Milwaukee, WIAskFRED | Senior Division I Men’s Foil | 55th of 226 |
| 16 May 2025 | May SJCCAskFRED | Junior Men’s Foil | 3rd of 139 |
| 11 Apr 2025 | Division 1/Para Championships + April NACAskFRED | Junior Men’s Foil | 14th of 378 |
| 11 Apr 2025 | Division 1/Para Championships + April NACAskFRED | Junior Men’s Foil | 14th of 378 |
| 11 Apr 2025 | Division 1/Para Championships + April NACAskFRED | Senior Division I Men’s Foil | 8th of 158 |
| 28 Mar 2025 | Fortune SYC/RJCC & Y8AskFRED | Junior Men’s Foil | 16th of 97 |
| 14 Feb 2025 | Junior Olympics & Div 1 NACAskFRED | Cadet Men’s Foil | 33rd of 353 |
| 14 Feb 2025 | Junior Olympics & Div 1 NACAskFRED | Junior Men’s Foil | 45th of 396 |
| 14 Feb 2025 | Junior Olympics & Div 1 NACAskFRED | Senior Division I Men’s Foil | 31st of 235 |
| 8 Feb 2025 | EFC Cadets Circuit Sofia 2025EFC | Cadet Men’s Foil | 17th of 164 |
| 3 Jan 2025 | January NAC, January 2025AskFRED | Senior Division I Men’s Foil | 77th of 265 |
| 3 Jan 2025 | January NAC, January 2025AskFRED | Cadet Men’s Foil | 3rd of 162 |
| 7 Dec 2024 | EFC Cadet Circuit Cabries 2024EFC | Cadet Men’s Foil | 22nd of 230 |
| 16 Nov 2024 | EFC Cadets Circuit Budapest Foil 2024EFC | Cadet Men’s Foil | 24th of 363 |
| 8 Nov 2024 | November NAC, Louisville, KYAskFRED | Cadet Men’s Foil | 3rd of 338 |
| 8 Nov 2024 | November NAC, Louisville, KYAskFRED | Junior Men’s Foil | 65th of 335 |
| 11 Oct 2024 | EFC Cadet Circuit Samorin 2024EFC | Cadet Men’s Foil | 38th of 263 |
| 4 Oct 2024 | October NAC, Atlantic City, NJAskFRED | Junior Men’s Foil | 57th of 343 |
| 4 Oct 2024 | October NAC, Atlantic City, NJAskFRED | Senior Division I Men’s Foil | 84th of 343 |
| 14 Sept 2024 | BladeRunner ROC/RJC, September 2024AskFRED | Senior Division IA Men’s Foil | 9th of 90 |
Head to head
Against left-handers 2–0 · right-handers 14–6, where the FIE says which hand they fence with. Left and right
Everyone they’ve met in events whose bouts are kept here, the most met first. Each goes to their bouts together.
| Against | Won | Lost | Last met | |
|---|---|---|---|---|
| Abel Elod LASZLO | 1 | 0 | 7 Nov 2026 | |
| Aidan Jonathan LAM | 1 | 0 | 7 Nov 2026 | |
| Aleksander BIENKOWSKI | 1 | 0 | 26 Sept 2026 | |
| Aris KIAYIAS | 1 | 0 | 26 Sept 2026 | |
| Bob CHENG | 0 | 1 | 26 Sept 2026 |
Everyone they’ve met (20 more)
| Against | Won | Lost | Last met | |
|---|---|---|---|---|
| Chong Him WU | 0 | 1 | 14 Dec 2025 | |
| Daniel LARKIN | 1 | 0 | 7 Nov 2026 | |
| Derek Lukas PEREZ | 1 | 0 | 14 Dec 2025 | |
| Diego FUKUDA | 1 | 0 | 26 Sept 2026 | |
| Esteban ANCIAUX | 1 | 0 | 7 Nov 2026 | |
| Filip EFROS | 1 | 0 | 7 Nov 2026 | |
| Giovanni PIERUCCI | 1 | 0 | 26 Sept 2026 | |
| Jung-Jin KIM | 1 | 0 | 14 Dec 2025 | |
| Khalid MOHAMED | 1 | 0 | 26 Sept 2026 | |
| Kingston Jun Yew LEE | 1 | 0 | 26 Sept 2026 | |
| Mahel BOUMAZA | 0 | 1 | 7 Nov 2026 | |
| Pol NICOLAS | 1 | 0 | 26 Sept 2026 | |
| Richard LI | 0 | 1 | 7 Nov 2026 | |
| Rin MA | 1 | 0 | 14 Dec 2025 | |
| Roberto Mathias CAZZANI | 1 | 0 | 26 Sept 2026 | |
| Ryan ZHU | 1 | 0 | 14 Dec 2025 | |
| Ryoga ONO | 0 | 1 | 14 Dec 2025 | |
| Sheng-Hung Jasper HSU | 0 | 1 | 14 Dec 2025 | |
| Shuya YUASA | 1 | 0 | 14 Dec 2025 | |
| Zirun (Kinton) YU | 1 | 0 | 14 Dec 2025 |
Figures
rating, ranking and how they fence
Over time
1st10th100th Junior Foil 248th, 2025–26 Junior Foil 134th, 2026–27
As a table
| Season | Weapon | fency ELO | FIE ranking |
|---|---|---|---|
| 2026–27 | Foil | 1,832 | 134th Junior |
| 2025–26 | Foil | 1,824 | 248th Junior |
| 2024–25 | Foil | 1,816 | |
| 2023–24 | Foil | 1,767 | |
| 2022–23 | Foil | 1,691 | |
| 2021–22 | Foil | 1,651 | |
| 2020–21 | Foil | 1,524 | |
| 2019–20 | Foil | 1,475 | |
| 2018–19 | Foil | 1,497 |
How fency ELO works · the best now
How they fence
| Stage | Won–lost | An average bout | By one touch |
|---|---|---|---|
| Pools | 15–3 83% | 4.8–1.9 | 1–2 |
| Tables | 4–3 57% | 9.9–12.4 | 2–0 |