CChessStats

Constitution Cup 2026

Open SwissStandard

12 players participated in this 7-round tournament, held from 09 May 2026 to 16 May 2026 in Denig, Nauru. 1 titled players. Top 10 Elo average was 1771, and top seed was Kingston Adam (🇳🇷 NRU, 1899).

Andrew Gadeanang (🇳🇷 NRU, 1716) won with 6.0/7, ahead of David Dabuae (5.0) and O-Neill Ribauw (4.0). Gadeanang shared the lead from round 5 and won solo starting round 6.

The biggest upset came in round 5: Andrew Gadeanang (1716) beat Kingston Adam (1899), a +183-point gap.

Location
🇳🇷Denig, Nauru
Dates
09 May 2026 → 16 May 2026
Time control
Standard: 90 minutes for the whole game
System
Swiss · 7 rounds
Top seed
🇳🇷Kingston Adam1899
Avg top 10
1,771
Participants
12
Titled players · 1
CM×1
Federations · 1 represented
🇳🇷Nauru×12
Top 3

How it unfolded

Top 6 · 7 rounds

Andrew Gadeanang led from R6; +1.0-point edge over the runner-up. Title race converged from 4 co-leaders at R4 to 1 by R6.

Co-leaders
6
3
1
4
2
1
1
23.55.57R1R2R3R4R5R6R7Gadeanang takes lead
Gadeanang6Dabuae5Apadinuwe4Ribauw4Scotty4Adam3.5
R6 · LEADER CHANGE16 May

Andrew Gadeanang takes the sole lead (5.0/6).

R1 · HEAD-TO-HEAD · WINNER VS 2ND

Andrew Gadeanang lost to CM David Dabuae (Black).

WIN STREAKS · 2 top finishers

Andrew Gadeanang 6 wins (R2–R7)CM David Dabuae 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Andrew Gadeanang*
0
1
1
2CMDavid Dabuae
1
*
1
0
3Tieta Apadinuwe
0
0
*—
4O-Neill Ribauw
0
1
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Gadeanang, Andrew1716NRU−2N+8B+5N+4B+6B+7N+3B6.023.526.521.502073+53.8
2Dabuae, DavidCM1851NRU+1B+9N+7B−6N+8B−3N+4B5.023.526.519.001925+11.6
3Ribauw, O-Neill1815NRU+5B+10N−6B−7N+12B+2B−1N4.024.525.513.001783-5.0
4Apadinuwe, Tieta1766NRU+12B−7N+10B−1N+9B+6N−2N4.023.524.510.501805+13.2
5Scotty, James1641NRU−3N−6N−1B+12N+11B+8B+9N4.022.023.09.501699+14.0
6Adam, Kingston1899NRU−10N+5B+3N+2B−1N−4B=11N3.526.028.514.251744-28.2
7Gadeanang, Lanni1830NRU+11N+4B−2N+3B−10N−1B−8N3.025.027.510.501761-11.2
8Batsiua, Walker0NRU−9B−1N+12B+11B−2N−5N+7B3.023.524.56.5016190.0
9Temaki, Jamiedson1771NRU+8N−2B+11N−10B−4N+12B−5B3.021.522.56.501495-70.0
10Amram, Teiniku1763NRU+6B−3B−4N+9N+7B−11N−12N3.020.021.09.501789+8.0
11Halstead, Richie1655NRU−7B+12N−9B−8N−5N+10B=6B2.519.520.55.751632-3.6
12Vorbach, Mike0NRU−4N−11B−8N−5B−3N−9N+10B1.021.023.53.0014620.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets