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J. Mattar
MID🇦🇷18 years old·born 7 Aug 2008
born Rosario, Argentina
Newells Old Boys · Argentina Liga Profesional
1570▼ -728dCurrent Elo
Rank #6,087·27 matches tracked
EAR = Elo Above Replacement, football's version of baseball's WAR (Wins Above Replacement). Every rated match scores a player against the average performance for their position: better adds to EAR, worse subtracts. EAR180 adds up the last 180 days (current form); EAR career adds up every rated match. Our predictions add EAR180 to a player's Elo, about 37 Elo points per EAR point.Average+0.9career·Below-0.5last 180 days
Latest· 12 Oct 2026
28' vs Gimnasia M. — a quiet game.
Gimnasia M. 1–0 Newells Old Boys (loss) · Rating 6.63 · Elo +0 · 21 passes (1 key) · 5/6 duels
Domestic cupInternational cup
Form — EAR = Elo Above Replacement, football's version of baseball's WAR (Wins Above Replacement). Every rated match scores a player against the average performance for their position: better adds to EAR, worse subtracts. EAR180 adds up the last 180 days (current form); EAR career adds up every rated match. Our predictions add EAR180 to a player's Elo, about 37 Elo points per EAR point. Each bar is the EAR180 going into that match: green above the position average, red below. A gap means no rated match in that window. (180 days)
Opponents
Their Elo change in matches against him (at least 3 meetings).
Favourite opponents
Hardly any opponent lost Elo against him.
Nemeses
+77J. Gutiérrez1854
in 3 matches · Defensa Y Justicia
+29D. Fernández1891
in 3 matches · Defensa Y Justicia
+26B. Aguirre1866
in 3 matches · Estudiantes L.P.
+4A. Hausch1608
in 3 matches · Defensa Y Justicia
Coaches
Their Elo change in matches against him (at least 3 meetings).
Favourite coaches
No coach lost Elo against him.
Nemesis coaches
Hardly any coach gained Elo against him.
Career history
- 2025Newells Old Boys→Newells Old BoysRaise