"Steinitz Open" FIDE rated Chess Tournament 2026 C G10
Open SwissStandard
35 players participated in this 11-round tournament, held from 21 May 2026 to 24 May 2026 in Ulaanbaatar, Mongolia. Top 10 Elo average was 1427, and top seed was Az-Erdene Nyamdavaa (🇲🇳 MGL, 1673).
Shagdarsuren Uranzaya (🇲🇳 MGL, 1603) won with 10.0/11, ahead of Tselmuun Tuvshinbayar (9.5) and Tsogtgerel Gerelt-oyu (8.0). Uranzaya won solo starting round 6.
The biggest upset came in round 10: Tsogtgerel Gerelt-oyu (1488) beat Ninjbilig Nyamsukh (1653), a +165-point gap.
Location
🇲🇳Ulaanbaatar, Mongolia
Dates
21 May 2026 → 24 May 2026
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 11 rounds
Federations · 1 represented
🇲🇳Mongolia×13
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 11 roundsShagdarsuren Uranzaya led from R6; +0.5-point edge over the runner-up. Title race converged from 3 co-leaders at R4 to 1 by R6.
Co-leaders
23
10
5
3
2
1
1
1
1
1
1
R6–R11 · LEAD HELD
Shagdarsuren Uranzaya held the sole lead from R6 through R11 without losing it.
R6 · HEAD-TO-HEAD · WINNER VS 2ND
Shagdarsuren Uranzaya beat Tselmuun Tuvshinbayar (Black).
WIN STREAKS · 2 top finishers
Shagdarsuren Uranzaya 9 wins (R1–R9)Tselmuun Tuvshinbayar 5+4 wins (R1–R5, R8–R11)
Key matchups · top 4
Head-to-head between the four finishersGrille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | R10 | R11 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Uranzaya, Shagdarsuren | 1603 | MGL | +29B | +13N | +25B | +18N | +6B | +2N | +7B | +3B | +17N | =4N | =5B | 10.0 | 71.0 | 76.0 | 68.25 | 1913 | +100.8 |
| 2 | Tselmuun Tuvshinbayar | 1594 | MGL | +22N | +8B | +5N | +17B | +4N | −1B | =3N | +13B | +7N | +6B | +12N | 9.5 | 74.0 | 79.5 | 65.50 | 1835 | +84.4 |
| 3 | Gerelt-oyu, Tsogtgerel | 1488 | MGL | +35N | =18B | +23N | =4B | +12N | +14B | =2B | −1N | =5N | +17B | +16B | 8.0 | 72.0 | 73.0 | 47.50 | 1608 | +32.0 |
| 4 | Oyunsunder Chagdar | 1517 | MGL | +34B | =16N | +32B | =3N | −2B | +31N | +19B | =12N | +13N | =1B | +7N | 8.0 | 68.0 | 71.0 | 46.00 | 1583 | +14.4 |
| 5 | Az-Erdene Nyamdavaa | 1673 | MGL | +31B | +24N | −2B | +27N | +11B | =6N | −13B | +16N | =3B | +8N | =1N | 7.5 | 71.5 | 76.0 | 47.25 | 1499 | -38.8 |
| 6 | Tselmeg Bold-Erdene | 1658 | MGL | +33N | +11B | +10N | +14B | −1N | =5B | −17N | +20N | +12B | −2N | +13B | 7.5 | 71.5 | 75.0 | 45.75 | 1442 | -57.6 |
| 7 | Nandin-Erdene Lkhagvajav | 1645 | MGL | +12N | +26B | −14N | +21B | +25N | +10B | −1N | +18B | −2B | +19N | −4B | 7.0 | 69.5 | 74.5 | 40.50 | 1344 | -62.8 |
| 8 | Misheel Erdenebat | 0 | MGL | +?B | −2N | −19B | +9N | +15B | +27N | −10N | +25B | +18N | −5B | +17N | 7.0 | 65.0 | 65.0 | 35.50 | 1396 | 0.0 |
| 9 | FIDE 4936000 | 0 | — | +?N | −20B | −11N | −8B | +34N | +26B | +30B | +28N | −10B | +22N | +19B | 7.0 | 55.5 | 55.5 | 29.50 | 634 | 0.0 |
| 10 | Misheel, Batbayar | 1434 | MGL | +21B | +28N | −6B | +15N | +19B | −7N | +8B | −17B | +9N | −13N | =14B | 6.5 | 65.5 | 70.5 | 40.25 | 852 | -26.8 |
| 11 | FIDE 4935896 | 0 | — | +19B | −6N | +9B | +?N | −5N | +25B | −12N | +14B | =15B | −16N | +23B | 6.5 | 64.5 | 64.5 | 33.25 | 866 | 0.0 |
| 12 | Namuunzaya Batnasan | 0 | MGL | −7B | +?N | +?B | +20N | −3B | +24N | +11B | =4B | −6N | +15N | −2B | 6.5 | 64.0 | 64.0 | 28.00 | 1214 | 0.0 |
| 13 | Iveelt Atarsaikhan | 0 | MGL | +?N | −1B | +?N | +?B | +17N | =18B | +5N | −2N | −4B | +10B | −6N | 6.5 | 61.0 | 61.0 | 23.00 | 1540 | 0.0 |
| 14 | FIDE 4934016 | 0 | — | +?B | +?N | +7B | −6N | +24B | −3N | −16B | −11N | +?N | +18B | =10N | 6.5 | 53.0 | 53.0 | 21.25 | 1469 | 0.0 |
| 15 | FIDE 4934245 | 0 | — | −20N | +33B | +26N | −10B | −8N | +?B | +22N | +?B | =11N | −12B | +24N | 6.5 | 51.5 | 51.5 | 22.25 | 634 | 0.0 |
| 16 | Maral, Chinguun | 0 | MGL | +?N | =4B | −18N | −25B | +?N | +33B | +14N | −5B | +?N | +11B | −3N | 6.5 | 51.0 | 51.0 | 20.50 | 1286 | 0.0 |
| 17 | Ninjbilig Nyamsukh | 1653 | MGL | +27B | +30N | +20B | −2N | −13B | +28N | +6B | +10N | −1B | −3N | −8B | 6.0 | 71.0 | 76.0 | 35.00 | 1483 | -45.6 |
| 18 | FIDE 4933630 | 0 | — | +?B | =3N | +16B | −1B | +?N | =13N | +20B | −7N | −8B | −14N | +27B | 6.0 | 62.5 | 62.5 | 24.75 | 1306 | 0.0 |
| 19 | FIDE 4936590 | 0 | — | −11N | +22B | +8N | +?B | −10N | +32B | −4N | +24B | +21N | −7B | −9N | 6.0 | 61.5 | 61.5 | 26.50 | 732 | 0.0 |
| 20 | FIDE 4935233 | 0 | — | +15B | +9N | −17N | −12B | +?N | +23B | −18N | −6B | +25N | −24B | +29N | 6.0 | 60.0 | 60.0 | 29.00 | 856 | 0.0 |
| 21 | FIDE 4936043 | 0 | — | −10N | +?B | +30B | −7N | −28B | +?N | =31B | +32N | −19B | −?N | +33N | 5.5 | 41.0 | 41.0 | 14.25 | 740 | 0.0 |
| 22 | FIDE 4938011 | 0 | — | −2B | −19N | +?B | +?N | =32B | −?N | −15B | +?N | +33B | −9B | +31N | 5.5 | 40.5 | 40.5 | 9.75 | 794 | 0.0 |
| 23 | FIDE 4937414 | 0 | — | +32B | +?N | −3B | −24N | +30B | −20N | −28B | +?N | +?N | =?B | −11N | 5.5 | 39.0 | 39.0 | 8.50 | 688 | 0.0 |
| 24 | FIDE 4936019 | 0 | — | F | −5B | +34N | +23B | −14N | −12B | +29N | −19N | +28B | +20N | −15B | 5.0 | 57.5 | 57.5 | 24.50 | 873 | 0.0 |
| 25 | FIDE 4937953 | 0 | — | F | +?B | −1N | +16N | −7B | −11N | +27B | −8N | −20B | +26B | +?N | 5.0 | 53.0 | 53.0 | 16.50 | 824 | 0.0 |
| 26 | FIDE 4937910 | 0 | — | +?B | −7N | −15B | +29N | −27B | −9N | +?B | −?B | +?N | −25N | +32B | 5.0 | 39.0 | 39.0 | 8.50 | 845 | 0.0 |
| 27 | FIDE 4936671 | 0 | — | −17N | +?B | +?N | −5B | +26N | −8B | −25N | −?B | +?N | +?B | −18N | 5.0 | 36.5 | 36.5 | 5.00 | 863 | 0.0 |
| 28 | FIDE 4937872 | 0 | — | +?N | −10B | −?N | +?B | +21N | −17B | +23N | −9B | −24N | −?B | +?N | 5.0 | 35.5 | 35.5 | 11.00 | 744 | 0.0 |
| 29 | FIDE 4935837 | 0 | — | −1N | +?B | −?N | −26B | +?N | +?B | −24B | −30N | +?B | +32N | −20B | 5.0 | 34.5 | 34.5 | 3.50 | 803 | 0.0 |
| 30 | FIDE 4937333 | 0 | — | +?N | −17B | −21N | +?B | −23N | +?B | −9N | +29B | −?N | +?B | −?N | 5.0 | 29.0 | 29.0 | 5.00 | 853 | 0.0 |
| 31 | FIDE 4937805 | 0 | — | −5N | −?B | +?N | +35B | +?N | −4B | =21N | −?B | +32B | −?N | −22B | 4.5 | 31.0 | 31.0 | 7.25 | 795 | 0.0 |
| 32 | FIDE 4938410 | 0 | — | −23N | +?B | −4N | +34B | =22N | −19N | +33B | −21B | −31N | −29B | −26N | 3.5 | 51.5 | 51.5 | 9.25 | 717 | 0.0 |
| 33 | FIDE 4935519 | 0 | — | −6B | −15N | +?B | +?N | =?B | −16N | −32N | +?B | −22N | F | −21B | 3.5 | 35.0 | 35.0 | 0.00 | 858 | 0.0 |
| 34 | FIDE 4938020 | 0 | — | −4N | +?B | −24B | −32N | −9B | −?N | −?B | F | +35N | −?B | +?N | 3.0 | 24.5 | 24.5 | 1.00 | 717 | 0.0 |
| 35 | FIDE 4936337 | 0 | — | −3B | −?N | −?B | −31N | −?B | F | F | −?N | −34B | +?B | −?N | 1.0 | 15.5 | 15.5 | 0.00 | 688 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Uranzaya, ShagdarsurenMGL+100.810.0 pts · #1
- 2Tselmuun TuvshinbayarMGL+84.49.5 pts · #2
- 3Gerelt-oyu, TsogtgerelMGL+32.08.0 pts · #4
Top rating losers
- 1Nandin-Erdene LkhagvajavMGL-62.87.0 pts · #10
- 2Tselmeg Bold-ErdeneMGL-57.67.5 pts · #9
- 3Ninjbilig NyamsukhMGL-45.66.0 pts · #6
Biggest upsets
- R10+165 Elo gap
- R11+128 Elo gap