Chess
Scotland

Chess
Scotland

Season:

Terry E Purkins

PNUM: 5689

Club: Pentland Hills

Status: A

Gender: M

Standard: 1290 ⇒ 1232 (-58)

Allegro: 1290 ⇒ 1290

Standard Games

Rnd	Opponent	Stat	Pub	Adj	Used	Col	Res
Edinburgh & Lothians Summer Plate
4	Marvin Gera28464	J15	1419	1519	1519	W	0
Edinburgh & Lothians League Division 3
2	James Crawford19395	A	1081	1081	1081	W	½
13	Andrew Wright28989	A	1280	1280	1280	B	0
24	William B Deas3705	A	1373	1373	1373	W	½
37	Alistair Forrester24237	A	1182	1182	1182	W	0
Edinburgh & Lothians Summer Cup 2024
1	Stephen Ritchie9049	A	1162	1162	1162	B	0
Grade Calculation: • TERRY E PURKINS • 5689 • GRADED PLAYER CALCULATION • PUBLISHED GRADE: 1290 • STATUS: A • *** • RESULTS: • MARVIN GERA \| 28464 \| J15 \| LOSS \| PUB GRADE: 1419 \| ADJ GRADE (+100): 1519 \| USED GRADE: 1519 \| EXP: 0.213 • JAMES CRAWFORD \| 19395 \| DRAW \| PUB GRADE: 1081 \| ADJ GRADE (+0): 1081 \| USED GRADE: 1081 \| EXP: 0.766 • ANDREW WRIGHT \| 28989 \| LOSS \| PUB GRADE: 1280 \| ADJ GRADE (+0): 1280 \| USED GRADE: 1280 \| EXP: 0.514 • WILLIAM B DEAS \| 3705 \| DRAW \| PUB GRADE: 1373 \| ADJ GRADE (+0): 1373 \| USED GRADE: 1373 \| EXP: 0.386 • ALISTAIR FORRESTER \| 24237 \| LOSS \| PUB GRADE: 1182 \| ADJ GRADE (+0): 1182 \| USED GRADE: 1182 \| EXP: 0.647 • STEPHEN RITCHIE \| 9049 \| LOSS \| PUB GRADE: 1162 \| ADJ GRADE (+0): 1162 \| USED GRADE: 1162 \| EXP: 0.673 • ----- • CALCULATION STEPS: • 6 GRADABLE GAMES • QTY GRADABLE GAMES (G): 6 • ACTUAL SCORE (ACT): 1.0 • EXPECTED SCORE (EXP): 3.199 • PUBLISHED GRADE (PUB): 1290 • 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 • 1290 + (800 x (1.0 - 3.199) / 30) + 1 = 1232 (to 0 d.p.) • GRADE DELTA: -58 • LIVE GRADE: 1232 • *** • GRADING CRITERIA MET • PLAYER GRANTED LIVE GRADE OF 1232