Chess
Scotland

Chess
Scotland

Season:

Zac Welling

PNUM: 31378

Club: England

Status: J13

Gender: M

Federation: ENG

Fide ID: 343414729

Standard: 1644 ⇒ 1686 (+42)

Allegro: 1644 ⇒ 1644

Standard Games

Rnd	Opponent	Stat	Pub	Adj	Used	Col	Res
Robinson Cup 2023
1	Vismith Prabhu31384	J13	1370	1500	1500	W	1
4	Nemhain Doolin31390	J12	1300	1440	1440	W	1
6	Louis Cheng29934	J8	1471	-	1821	B	½
7	Vismith Prabhu31384	J13	1370	1500	1500	B	½
10	Nemhain Doolin31390	J12	1300	1440	1440	B	1
12	Louis Cheng29934	J8	1471	-	1821	W	1
Grade Calculation: • ZAC WELLING • 31378 • GRADED PLAYER CALCULATION • PUBLISHED GRADE: 1644 • ADJUSTED GRADE: 1644 + 130 = 1774 • STATUS: J13 • *** • RESULTS: • VISMITH PRABHU \| 31384 \| J13 \| WIN \| PUB GRADE: 1370 \| ADJ GRADE (+130): 1500 \| USED GRADE: 1500 \| EXP: 0.692 • NEMHAIN DOOLIN \| 31390 \| J12 \| WIN \| PUB GRADE: 1300 \| ADJ GRADE (+140): 1440 \| USED GRADE: 1440 \| EXP: 0.761 • LOUIS CHENG \| 29934 \| J8 \| DRAW \| PUB GRADE: 1471 \| EST GRADE: 1821 \| USED GRADE: 1821 \| EXP: 0.269 • VISMITH PRABHU \| 31384 \| J13 \| DRAW \| PUB GRADE: 1370 \| ADJ GRADE (+130): 1500 \| USED GRADE: 1500 \| EXP: 0.692 • NEMHAIN DOOLIN \| 31390 \| J12 \| WIN \| PUB GRADE: 1300 \| ADJ GRADE (+140): 1440 \| USED GRADE: 1440 \| EXP: 0.761 • LOUIS CHENG \| 29934 \| J8 \| WIN \| PUB GRADE: 1471 \| EST GRADE: 1821 \| USED GRADE: 1821 \| EXP: 0.269 • ----- • CALCULATION STEPS: • 6 GRADABLE GAMES • QTY GRADABLE GAMES (G): 6 • ACTUAL SCORE (ACT): 5.0 • EXPECTED SCORE (EXP): 3.444 • PUBLISHED GRADE (PUB): 1644 • HIGHER OF G OR 30 (N): 30 • LOWER OF G OR 30 (n): 6 • CALCULATED DRIFT (D): 4.58 (to 2 d.p.) • APPLIED DRIFT (d): D x n / 30 = 4.58 x 6 / 30 = 1 (to 0 d.p.) • LIVE = PUB + (800 x (ACT - EXP) / N) + d • 1644 + (800 x (5.0 - 3.444) / 30) + 1 = 1686 (to 0 d.p.) • GRADE DELTA: +42 • LIVE GRADE: 1686 • *** • GRADING CRITERIA MET • PLAYER GRANTED LIVE GRADE OF 1686