2026 1st Punzalan Law Open Chess Tournament- U1800 Section
Open SwissStandard
24 players participated in this 5-round tournament, held from 24 Apr 2026 to 26 Apr 2026 in Winnipeg, Manitoba, Canada. Top 10 Elo average was 1137, and top seed was Zach Nathaniel Lee (🇨🇦 CAN, 1759).
Rex Shi (🇨🇦 CAN, 0) won with 5.0/5, ahead of Benjamin Rossen (4.5) and Arnold Casaclang (4.0). Shi won solo starting round 4.
Location
🇨🇦Winnipeg, Manitoba, Canada
Dates
24 Apr 2026 → 26 Apr 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Federations · 1 represented
🇨🇦Canada×14
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsRex Shi led from R4; +0.5-point edge over the runner-up.
Co-leaders
14
6
2
1
1
R4–R5 · LEAD HELD
Rex Shi held the sole lead from R4 through R5 without losing it.
WIN STREAKS · 3 top finishers
Rex Shi 5 wins (R1–R5)Benjamin Rossen 3 wins (R3–R5)Arnold Casaclang 4 wins (R2–R5)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Rex Shi | * | — | — | 1 |
| 2Benjamin Rossen | — | * | — | — |
| 3Arnold Casaclang | — | — | * | — |
| 4FIDE 2685914 | 0 | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Shi, Rex | 0 | CAN | +22N | +8B | +6N | +?N | +4B | 5.0 | 10.0 | 10.0 | 10.00 | 1728 | 0.0 |
| 2 | Rossen, Benjamin | 0 | CAN | +7B | =4N | +11B | +12N | +?B | 4.5 | 11.5 | 11.5 | 9.75 | 1708 | 0.0 |
| 3 | Casaclang, Arnold | 0 | CAN | −?N | +?B | +?N | +8B | +7B | 4.0 | 6.0 | 6.0 | 6.00 | 1700 | 0.0 |
| 4 | Kola, Venkata Saket Reddy | 1617 | CAN | +15N | =2B | +13N | +5B | −1N | 3.5 | 15.0 | 17.0 | 9.75 | 2436 | +21.2 |
| 5 | Sarao, Karanveer Singh | 1636 | CAN | +20B | +17N | =12B | −4N | +11B | 3.5 | 10.5 | 11.5 | 6.75 | 1672 | +4.0 |
| 6 | FIDE 2685914 | 0 | — | +9N | +22B | −1B | =?N | +12B | 3.5 | 10.5 | 10.5 | 5.50 | 1610 | 0.0 |
| 7 | McKenzie, Mike | 1660 | CAN | −2N | +15B | +9N | +16B | −3N | 3.0 | 13.5 | 15.5 | 7.00 | 2283 | +5.4 |
| 8 | Lee, Zach Nathaniel | 1759 | CAN | +21B | −1N | +14B | −3N | +13B | 3.0 | 13.0 | 13.5 | 4.50 | 2287 | +6.8 |
| 9 | Osali, Abdolreza | 1483 | CAN | −6B | +19N | −7B | +17N | +16B | 3.0 | 10.5 | 11.5 | 5.00 | 860 | -10.8 |
| 10 | FIDE 2685930 | 0 | — | +14B | +?N | −?B | −11N | +?N | 3.0 | 4.5 | 4.5 | 2.00 | 1609 | 0.0 |
| 11 | Parmar, Nevil | 1728 | CAN | +24N | =13B | −2N | +10B | −5N | 2.5 | 13.0 | 13.0 | 4.00 | 836 | -25.2 |
| 12 | Mallari, Efren | 0 | CAN | +?N | +?B | =5N | −2B | −6N | 2.5 | 11.5 | 11.5 | 1.75 | 1674 | 0.0 |
| 13 | Janzen-Martin, Matthew | 0 | CAN | +19B | =11N | −4B | =?N | −8N | 2.0 | 10.0 | 10.0 | 2.25 | 1469 | 0.0 |
| 14 | Pacin, Stefan | 1487 | CAN | −10N | +23B | −8N | −18B | +19N | 2.0 | 9.0 | 9.0 | 1.00 | 959 | -6.8 |
| 15 | FIDE 2685973 | 0 | — | −4B | −7N | +21B | +20N | −?B | 2.0 | 8.0 | 8.0 | 1.50 | 815 | 0.0 |
| 16 | FIDE 2685957 | 0 | — | −?B | +21N | +24B | −7N | −9N | 2.0 | 6.5 | 6.5 | 0.50 | 772 | 0.0 |
| 17 | FIDE 2685922 | 0 | — | +?N | −5B | −?N | −9B | +23B | 2.0 | 6.5 | 6.5 | 0.00 | 1390 | 0.0 |
| 18 | FIDE 2685892 | 0 | — | F | −?N | =?B | +14N | =?B | 2.0 | 2.0 | 2.0 | 2.00 | 1596 | 0.0 |
| 19 | Salonga, Romel | 0 | CAN | −13N | −9B | =?N | =21B | −14B | 1.0 | 7.5 | 7.5 | 0.25 | 1240 | 0.0 |
| 20 | FIDE 2685949 | 0 | — | −5N | −?B | +23N | −15B | F | 1.0 | 5.5 | 5.5 | 0.00 | 775 | 0.0 |
| 21 | Iyer, Pia | 0 | CAN | −8N | −16B | −15N | =19N | F | 0.5 | 8.0 | 8.0 | 0.50 | 959 | 0.0 |
| 22 | FIDE 2685965 | 0 | — | −1B | −6N | F | −?B | F | 0.0 | 9.5 | 9.5 | 0.00 | 714 | 0.0 |
| 23 | FIDE 2680882 | 0 | — | −?B | −14N | −20B | F | −17N | 0.0 | 5.0 | 5.0 | 0.00 | 716 | 0.0 |
| 24 | FIDE 2680688 | 0 | — | −11B | F | −16N | −?B | F | 0.0 | 5.0 | 5.0 | 0.00 | 849 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Kola, Venkata Saket ReddyCAN+21.23.5 pts · #9
- 2Lee, Zach NathanielCAN+6.83.0 pts · #10
- 3McKenzie, MikeCAN+5.43.0 pts · #8
Top rating losers
- 1Parmar, NevilCAN-25.22.5 pts · #21
- 2Osali, AbdolrezaCAN-10.83.0 pts · #15
- 3Pacin, StefanCAN-6.82.0 pts · #20