2026 ACC May Flowers Crown
Open SwissStandard
23 players participated in this 5-round tournament, held from 25 May 2026 to 22 Jun 2026 in Toronto, Canada. 2 titled players from 5 federations. Top 10 Elo average was 1992, and top seed was Maxence Murara (🇷🇼 RWA, CM, 2234).
Lyam Katz (🇨🇦 CAN, 2045) won with 4.5/5, ahead of Umid Allahverdi (3.5) and David Izrailov (3.5). Katz won solo starting round 3.
The biggest upset came in round 5: FIDE 2681315 (1723) beat Maxence Murara (CM, 2234), a +511-point gap.
Location
🇨🇦Toronto, Canada
Dates
25 May 2026 → 22 Jun 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Titled players · 2
FM×1
CM×1
Federations · 5 represented
🇨🇦Canada×17
🇳🇵Nepal×1
🇷🇼Rwanda×1
🇵🇭Philippines×1
🇦🇱Albania×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsLyam Katz led from R3; +1.0-point edge over the runner-up.
Co-leaders
5
2
1
1
1
R3–R5 · LEAD HELD
Lyam Katz never relinquished the lead after R3; final gap +1.0 over the runner-up.
R1–R4 · WIN STREAK
Lyam Katz won 4 in a row (R1–R4).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Lyam Katz | * | — | — | — |
| 2David Izrailov | — | * | ½ | — |
| 3Umid Allahverdi | — | ½ | * | — |
| 4Uttam Dhungel | — | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Katz, Lyam | 2045 | CAN | +13B | +14N | +7B | +8N | =4B | 4.5 | 8.5 | 9.5 | 8.00 | 2017 | +27.2 |
| 2 | Allahverdi, Umid | 1883 | CAN | =8N | +21B | =6B | =3N | +7B | 3.5 | 10.5 | 10.5 | 6.50 | 1901 | +37.6 |
| 3 | Izrailov, David | 1723 | CAN | −4N | +?B | +13N | =2B | +6N | 3.5 | 10.0 | 10.0 | 5.25 | 1713 | 0.0 |
| 4 | Furrow, Matthew | 1839 | CAN | +3B | =6N | +9B | F | =1N | 3.0 | 12.5 | 12.5 | 9.00 | 1870 | +14.6 |
| 5 | Dhungel, Uttam | 1938 | NEP | F | F | +18B | +20N | +8B | 3.0 | 3.0 | 3.0 | 3.00 | 2528 | +19.4 |
| 6 | Mickelson, Jonah | 1762 | CAN | +21B | =4B | =2N | =7N | −3B | 2.5 | 12.5 | 12.5 | 4.50 | 1891 | +47.2 |
| 7 | Wojtarowicz, Nicolas | 0 | CAN | +18B | +19N | −1N | =6B | −2N | 2.5 | 11.0 | 11.5 | 2.25 | 1682 | 0.0 |
| 8 | Mammadov, Nihad | 2028 | CAN | =2B | =15N | +14B | −1B | −5N | 2.0 | 12.0 | 13.0 | 3.25 | 1617 | -45.6 |
| 9 | Boross-Harmer, Peter | 1968 | CAN | F | +22B | −4N | +11B | F | 2.0 | 4.5 | 4.5 | 1.50 | 878 | -16.8 |
| 10 | Vinuya, Ruth Joy | 1920 | PHI | F | F | +15B | +18N | F | 2.0 | 1.5 | 1.5 | 1.50 | 2507 | +13.8 |
| 11 | FIDE 2681315 | 1723 | — | =15B | F | F | −9N | +19B | 1.5 | 3.5 | 3.5 | 1.00 | 1839 | 0.0 |
| 12 | Gutierrez, Matias | 1719 | CAN | −14N | F | =19B | F | +15N | 1.5 | 2.5 | 2.5 | 1.25 | 1723 | +4.8 |
| 13 | Ugodnikov, Arkadiy | 1735 | CAN | −1N | =18N | −3B | F | =20B | 1.0 | 9.0 | 9.0 | 0.50 | 1495 | -7.8 |
| 14 | Alimirzoev, Rustam | 1798 | CAN | +12B | −1B | −8N | F | F | 1.0 | 8.0 | 8.0 | 1.50 | 1602 | -1.2 |
| 15 | Dick, Joel | 1822 | CAN | =11N | =8B | −10N | F | −12B | 1.0 | 7.0 | 7.0 | 1.75 | 1493 | -18.0 |
| 16 | Schwartz, Lorne | 1753 | CAN | F | F | F | F | +18B | 1.0 | 0.5 | 0.5 | 0.50 | 1691 | 0.0 |
| 17 | Campbell, BrettFM | 1930 | CAN | F | +23B | F | F | F | 1.0 | 0.0 | 0.0 | 0.00 | 2403 | +3.2 |
| 18 | Zivojinovic, Viktor | 1798 | CAN | −7N | =13B | −5N | −10B | −16N | 0.5 | 8.5 | 9.5 | 0.50 | 1462 | -29.6 |
| 19 | Murara, MaxenceCM | 2234 | RWA | F | −7B | =12N | F | −11N | 0.5 | 5.5 | 5.5 | 0.75 | 1693 | -3.2 |
| 20 | Velazquez, Alex | 1710 | CAN | F | F | F | −5B | =13N | 0.5 | 4.0 | 4.0 | 0.50 | 1500 | -26.0 |
| 21 | Bao, Tony Bohan | 2136 | CAN | −6N | −2N | F | F | F | 0.0 | 6.0 | 6.0 | 0.00 | 811 | -35.8 |
| 22 | FIDE 2687038 | 1692 | — | F | −9N | F | F | F | 0.0 | 2.0 | 2.0 | 0.00 | 1160 | 0.0 |
| 23 | Kolndreu, Albion | 1806 | ALB | F | −17N | F | F | F | 0.0 | 1.0 | 1.0 | 0.00 | 1086 | -3.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Mickelson, JonahCAN+47.22.5 pts · #7
- 2Allahverdi, UmidCAN+37.63.5 pts · #5
- 3Katz, LyamCAN+27.24.5 pts · #2
Top rating losers
- 1Mammadov, NihadCAN-45.62.0 pts · #8
- 2Bao, Tony BohanCAN-35.80.0 pts · #20
- 3Zivojinovic, ViktorCAN-29.60.5 pts · #19
Biggest upsets
- R5+511 Elo gap
- R2+392 Elo gap
- R1+374 Elo gap