Knockout State Every Tie, Two Ways to Measure Strength
30 knockout matches played — Round of 32 through Semi-Final — for both the chess engines and the FIFA 2026 nations they mirror. The Final is set; this is the full record before it's played.
16
R32 · Complete
8
R16 · Complete
4
QF · Complete
2
SF · Complete
1
Final · Pending
The Final
set, not yet played
Championship Match
Stockfish(Spain · 3093 Elo · FIFA 1876)vsReckless(Argentina · 3071 Elo · FIFA 1875)
Stockfish is the Elo favorite by 22 points and the FIFA favorite by a single point — the closest double-favorite alignment of the entire bracket. Both engines have won every match by both metrics so far: zero upsets across their combined 7 ties.
Round of 32
16 matches · 16 games each
#
Match
Engine 1
Engine 2
Result
Elo (E1–E2)
FIFA Rank (E1–E2)
Winner
1
M74
Pawnocchio (Germany)
RofChade (Turkey)
6–0
3009–2936
1730–1599
Pawnocchio
2
M77
PlentyChess (France)
Peacekeeper (Tunisia)
9–0
3060–2893
1877–1483
PlentyChess
3
M73
Koivisto (Korea Republic)
Revenge (Canada)
1–2
2911–2930
1589–1556
Revenge
4
M75
Tarnished (Japan)
Horsie (Morocco)
3–1
2994–2990
1660–1756
Tarnished
5
M83
Starzix (Colombia)
Integral (Croatia)
0–1
2979–3004
1693–1717
Integral
6
M84
Stockfish (Spain)
Seer (Austria)
6–0
3093–2902
1876–1593
Stockfish
7
M81
RubiChess (United States)
Clarity (Algeria)
6–0
2984–2908
1673–1564
RubiChess
8
M82
Halogen (Iran)
Black Marlin (Saudi Arabia)
5–1
2980–2878
1615–1421
Halogen
9
M76
Alexandria (Brazil)
Caissa (Netherlands)
2–0
3043–2992
1761–1758
Alexandria
10
M78
Cinder (Ecuador)
Motor (Senegal)
0–4
2945–2981
1595–1689
Motor
11
M79
Clover (Mexico)
Booot (Scotland)
5–0
2991–2914
1681–1498
Clover
12
M80
Obsidian (England)
Arasan (Ivory Coast)
6–0
3044–2895
1826–1533
Obsidian
13
M86
Reckless (Argentina)
Komodo (Uruguay)
3–0
3071–2991
1875–1673
Reckless
14
M88
Velvet (Australia)
Viridithas (Belgium)
0–4
2934–3011
1581–1735
Viridithas
15
M85
Hobbes (Switzerland)
SlowChess (Egypt)
8–0
2989–2875
1649–1563
Hobbes
16
M87
Berserk (Portugal)
Igel (Panama)
4–0
3024–2910
1764–1541
Berserk
Round of 16
8 matches · 20 games each
#
Match
Engine 1
Engine 2
Result
Elo (E1–E2)
FIFA Rank (E1–E2)
Winner
1
M89
Pawnocchio (Germany)
PlentyChess (France)
0–3
3009–3060
1730–1877
PlentyChess
2
M90
Revenge (Canada)
Tarnished (Japan)
1–6
2930–2994
1556–1660
Tarnished
3
M91
Alexandria (Brazil)
Motor (Senegal)
4–1
3043–2981
1761–1689
Alexandria
4
M92
Clover (Mexico)
Obsidian (England)
0–3
2991–3044
1681–1826
Obsidian
5
M93
Integral (Croatia)
Stockfish (Spain)
1–4
3004–3093
1717–1876
Stockfish
6
M94
RubiChess (United States)
Halogen (Iran)
1–4
2984–2980
1673–1615
Halogen
7
M95
Reckless (Argentina)
Viridithas (Belgium)
3–0
3071–3011
1875–1735
Reckless
8
M96
Hobbes (Switzerland)
Berserk (Portugal)
0–3
2989–3024
1649–1764
Berserk
Quarter-Finals
4 matches · 24 games each
#
Match
Engine 1
Engine 2
Result
Elo (E1–E2)
FIFA Rank (E1–E2)
Winner
1
M97
PlentyChess (France)
Tarnished (Japan)
5–1
3060–2994
1877–1660
PlentyChess
2
M98
Stockfish (Spain)
Halogen (Iran)
7–0
3093–2980
1876–1615
Stockfish
3
M99
Alexandria (Brazil)
Obsidian (England)
2–1
3043–3044
1761–1826
Alexandria
4
M100
Reckless (Argentina)
Berserk (Portugal)
4–0
3071–3024
1875–1764
Reckless
Semi-Finals
2 matches · 28 games each
#
Match
Engine 1
Engine 2
Result
Elo (E1–E2)
FIFA Rank (E1–E2)
Winner
1
M101
PlentyChess (France)
Stockfish (Spain)
1–5
3060–3093
1877–1876
Stockfish
2
M102
Alexandria (Brazil)
Reckless (Argentina)
0–4
3043–3071
1761–1875
Reckless
Strength Comparison — Elo vs FIFA Rank
30 knockout matches
Every WCCE 2026 engine carries two independent strength signals: its own tournament Elo, and the FIFA 2026 world-ranking points of the nation it mirrors. Marking the higher-rated side as the "favorite" under each system and checking it against the actual result shows which signal tracked the bracket better.
28/30
Elo favorite won (93,33%)
25/30
FIFA favorite won (83,33%)
2
Elo upsets
5
FIFA upsets
Reading the gap: Elo never failed on its own — both of its misses (M94, M99) were also FIFA misses. FIFA rank, on the other hand, was wrong three extra times when Elo called it correctly (M73, M75, M101) — including the Semi-Final, where France's 1-point FIFA edge over Spain didn't survive contact with Stockfish's real engine strength. Across this bracket, in-tournament Elo has been the more reliable predictor of who actually advances.