2025 Cornerstone Holiday Norm Invitationals #1 - IM B
10 players participated in this 9-round tournament, held from 26 Dec 2025 to 30 Dec 2025 in Sunnyvale, CA, United States. 8 titled players from 5 federations. Top 10 Elo average was 2237, and top seed was Diego Saul Rodri Flores Quillas (🇵🇪 PER, IM, 2409).
Diego Saul Rodri Flores Quillas (🇵🇪 PER, IM, 2409) won with 7.0/9, ahead of Rose Atwell (7.0) and Shaaketh Sivakumar (6.0). Flores Quillas took the lead from round 6, winning on tie-break.
The biggest upset came in round 3: Joshua Xia (2009) beat Kiren Vivek Nasta (2200), a +191-point gap.
- 🥇
- 🥈
- 🥉
How it unfolded
Top 10 · 9 roundsFM Rose Atwell led from R5 onwards, the runner-up race stayed tight. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.
FM Rose Atwell takes the sole lead (4.5/5).
FM Rose Atwell lost to IM Diego Saul Rodri Flores Quillas (White).
FM Rose Atwell 4 wins (R2–R5)FM Shaaketh Sivakumar 3 wins (R5–R7)
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 🇵🇪IMFlores Quillas, Diego Saul Rodri | 2409 | * | 1 | ½ | ½ | 1 | ½ | 1 | 1 | ½ | 1 | 7.0 | 29.25 | 38.0 | +4.0 | 2438 |
| 1 | 🇺🇸FMAtwell, Rose | 2330 | 0 | * | 1 | 1 | ½ | ½ | 1 | 1 | 1 | 1 | 7.0 | 26.50 | 38.0 | +26.4 | 2446 |
| 3 | 🇺🇸FMSivakumar, Shaaketh | 2264 | ½ | 0 | * | ½ | 1 | 1 | 0 | 1 | 1 | 1 | 6.0 | 22.75 | 39.0 | +23.4 | 2359 |
| 5 | 🇨🇴GMArenas, David | 2352 | ½ | 0 | ½ | * | ½ | 1 | ½ | 1 | 1 | ½ | 5.5 | 20.75 | 39.5 | -4.4 | 2304 |
| 4 | 🇲🇽IMFigueredo Losada, Leonel | 2298 | 0 | ½ | 0 | ½ | * | 1 | 1 | ½ | 1 | 1 | 5.5 | 18.75 | 39.5 | +2.5 | 2310 |
| 6 | 🇨🇦CMDoknjas, Neil | 2242 | ½ | ½ | 0 | 0 | 0 | * | ½ | 1 | 0 | 1 | 3.5 | 13.50 | 41.5 | -21.0 | 2156 |
| 8 | 🇺🇸FMGuntaka, Aayansh | 2144 | 0 | 0 | 1 | ½ | 0 | ½ | * | 0 | 1 | 0 | 3.0 | 13.00 | 42.0 | -12.4 | 2122 |
| 7 | 🇺🇸Xia, Joshua | 2009 | 0 | 0 | 0 | 0 | ½ | 0 | 1 | * | ½ | 1 | 3.0 | 9.00 | 42.0 | +47.6 | 2137 |
| 9 | 🇺🇸CMChinni, Rishabh | 2120 | ½ | 0 | 0 | 0 | 0 | 1 | 0 | ½ | * | ½ | 2.5 | 9.50 | 42.5 | -19.8 | 2084 |
| 10 | 🇺🇸Nasta, Kiren Vivek | 2200 | 0 | 0 | 0 | ½ | 0 | 0 | 1 | 0 | ½ | * | 2.0 | 7.00 | 43.0 | -40.2 | 2021 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Xia, JoshuaUSA+47.63.0 pts · #7
- 2Atwell, RoseFMUSA+26.47.0 pts · #1
- 3Sivakumar, ShaakethFMUSA+23.46.0 pts · #3
- 1Nasta, Kiren VivekUSA-40.22.0 pts · #10
- 2Doknjas, NeilCMCAN-21.03.5 pts · #6
- 3Chinni, RishabhCMUSA-19.82.5 pts · #9
- R3+191 Elo gap
- R6+135 Elo gap
- R1+122 Elo gap