| Croatian Youth Individual Championships | U15· Jun 15 – 19, 2025 | Jun 15 – 19, 2025 | Blitz | 6 | 1857 | 5 |
5. Cairns Cup 2025 Saint Louis USA· Jun 10 – 19, 2025 | Jun 10 – 19, 2025 | Classical | 10 | 2480 | 45 |
5th Cairns Cup 2025 Saint Louis USA· Jun 10 – 19, 2025 | Jun 10 – 19, 2025 | Classical | 9 | 2475 | 36 |
ch-Panamerican U20 Girls Asuncion PAR· Jun 14 – 19, 2025 | Jun 14 – 19, 2025 | Classical | 20 | 1892 | 49 |
ch-Panamerican U20 2025 Asuncion PAR· Jun 14 – 19, 2025 | Jun 14 – 19, 2025 | Classical | 35 | 2129 | 114 |
| Montenegro Youth Chess Championships 2025 | U15· Jun 15 – 18, 2025 | Jun 15 – 18, 2025 | Blitz | 6 | 1676 | 5 |
4. Chess Festival Cesis Cesis LAT· Jun 16 – 18, 2025 | Jun 16 – 18, 2025 | Classical | 31 | 2168 | 41 |
| Niemann-Giri RerematchEndgame.AI INT· Jun 18, 2025 | Jun 18, 2025 | Classical | 3 | 2744 | 26 |
IV Chess Festival Cesis Cesis LAT· Jun 16 – 18, 2025 | Jun 16 – 18, 2025 | Classical | 34 | 2150 | 48 |
China-Africa Friendship Changsha CHN· Jun 15 – 16, 2025 | Jun 15 – 16, 2025 | Classical | 16 | 1899 | 56 |
| Mistrzostwa Wielkopolski Juniorów 2025 | GRUPA C11· Jun 11 – 15, 2025 | Jun 11 – 15, 2025 | Blitz | 6 | 1620 | 5 |
| 8. Sassenage Rapid Open 2025· Jun 15, 2025 | Jun 15, 2025 | Rapid | 6 | 2296 | 5 |
| 5to IRT Centro Comercial AV. Chile· Jun 15, 2025 | Jun 15, 2025 | Blitz | 6 | 1946 | 5 |
| Portuguese Mixed Pairs Championship 2024-25· Jun 15, 2025 | Jun 15, 2025 | Blitz | 6 | 2108 | 5 |
| Canary Islands Team Championship 2025· Jun 12 – 15, 2025 | Jun 12 – 15, 2025 | Classical | 7 | 2302 | 6 |
| LJ Slovakia Chess Open 2025· Jun 12 – 15, 2025 | Jun 12 – 15, 2025 | Blitz | 7 | 2125 | 6 |
FIDE World Bl Team Final annulled London ENG· Jun 15, 2025 | Jun 15, 2025 | Classical | 12 | 2592 | 6 |
Zupanja Celebrates IM2 Zupanja CRO· Jun 10 – 15, 2025 | Jun 10 – 15, 2025 | Classical | 10 | 2256 | 40 |
AGCA Spring Inv IM 2025 Austin, TX USA· Jun 11 – 15, 2025 | Jun 11 – 15, 2025 | Classical | 10 | 2235 | 42 |
| Hong Kong International Chess Championship 2024 | ChallengersQueen Elizabeth Stadium· Jan 2 – Jun 15, 2025 | Jan 2 – Jun 15, 2025 | Blitz | 41 | 1708 | 26 |
Carolinas Classic 2025 Charlotte USA· Jun 13 – 15, 2025 | Jun 13 – 15, 2025 | Classical | 35 | 2102 | 40 |
Zupanja Celebrates GM2 Zupanja CRO· Jun 10 – 15, 2025 | Jun 10 – 15, 2025 | Classical | 10 | 2309 | 39 |
French Open Blitz 2025 Saint-Maur-des-Fosses FRA· Jun 15, 2025 | Jun 15, 2025 | Blitz | 67 | 2197 | 113 |
German Team Cup 2025 Augsburg GER· Jun 14 – 15, 2025 | Jun 14 – 15, 2025 | Classical | 16 | 2448 | 28 |
AGCA Spring Inv GM 2025 Austin, TX USA· Jun 11 – 15, 2025 | Jun 11 – 15, 2025 | Classical | 10 | 2394 | 43 |
FIDE World Bl Team 5-8th London ENG· Jun 15, 2025 | Jun 15, 2025 | Classical | 31 | 2531 | 48 |
51. ch-GER Rapid 2025 Neuwied GER· Jun 14 – 15, 2025 | Jun 14 – 15, 2025 | Rapid | 36 | 2210 | 157 |
FIDE World Bl Team Final London ENG· Jun 15, 2025 | Jun 15, 2025 | Classical | 113 | 2490 | 216 |
51st ch-GER Rapid 2025 Neuwied GER· Jun 14 – 15, 2025 | Jun 14 – 15, 2025 | Rapid | 33 | 2186 | 127 |
| Mistrzostwa Wielkopolski Juniorów 2025 | GRUPA D11· Jun 11 – 14, 2025 | Jun 11 – 14, 2025 | Blitz | 6 | 1489 | 5 |
ch-GER Youth U18 2025 Willingen GER· Jun 8 – 14, 2025 | Jun 8 – 14, 2025 | Classical | 10 | 2100 | 9 |
3. Munich Whitsun Open A Munich GER· Jun 8 – 14, 2025 | Jun 8 – 14, 2025 | Classical | 112 | 2263 | 270 |
16. Dolomiti Open 2025 Forni di Sopra ITA· Jun 7 – 14, 2025 | Jun 7 – 14, 2025 | Classical | 35 | 2048 | 149 |
FSIM June 2025 Budapest HUN· Jun 7 – 14, 2025 | Jun 7 – 14, 2025 | Classical | 10 | 2241 | 37 |
21. Delhi Open 2025 New Delhi IND· Jun 7 – 14, 2025 | Jun 7 – 14, 2025 | Classical | 102 | 2156 | 153 |
16th Dolomiti Open 2025 Forni di Sopra ITA· Jun 7 – 14, 2025 | Jun 7 – 14, 2025 | Classical | 31 | 2021 | 121 |
French Open Rapid 2025 Saint-Maur-des-Fosses FRA· Jun 14, 2025 | Jun 14, 2025 | Rapid | 60 | 2262 | 74 |
FSGM June 2025 Budapest HUN· Jun 7 – 14, 2025 | Jun 7 – 14, 2025 | Classical | 11 | 2346 | 49 |
FIDE World Bl Team Pool A London ENG· Jun 14, 2025 | Jun 14, 2025 | Classical | 90 | 2270 | 475 |
GER Ch Youth U18 2025 Willingen GER· Jun 8 – 14, 2025 | Jun 8 – 14, 2025 | Classical | 30 | 2142 | 135 |
21st Delhi Open 2025 New Delhi IND· Jun 7 – 14, 2025 | Jun 7 – 14, 2025 | Classical | 87 | 2128 | 112 |
FIDE World Bl Team Pool D London ENG· Jun 14, 2025 | Jun 14, 2025 | Classical | 108 | 2214 | 561 |
3rd Munich Whitsun Open A Munich GER· Jun 8 – 14, 2025 | Jun 8 – 14, 2025 | Classical | 111 | 2240 | 271 |
FIDE World Bl Team Pool B London ENG· Jun 14, 2025 | Jun 14, 2025 | Classical | 100 | 2262 | 498 |
FIDE World Bl Team Pool C London ENG· Jun 14, 2025 | Jun 14, 2025 | Classical | 100 | 2274 | 496 |
4. Hotel Stockholm North Upplands Vasby SWE· Jun 9 – 13, 2025 | Jun 9 – 13, 2025 | Classical | 10 | 2450 | 44 |
15. Nat Games Tm Prelim Huairou District CHN· Jun 11 – 13, 2025 | Jun 11 – 13, 2025 | Classical | 48 | 2258 | 150 |
15. Nat Games Ind Prelim Huairou District CHN· Jun 11 – 13, 2025 | Jun 11 – 13, 2025 | Classical | 28 | 2227 | 82 |
3. Hotel Stockholm N IM Upplands Vasby SWE· Jun 9 – 13, 2025 | Jun 9 – 13, 2025 | Classical | 10 | 2264 | 43 |
3rd Hotel Stockholm N IM Upplands Vasby SWE· Jun 9 – 13, 2025 | Jun 9 – 13, 2025 | Classical | 9 | 2261 | 35 |