Chess
Scotland

Chess
Scotland

Season:

Darima Donitova-Johnstone

PNUM: 28314

Club: Edinburgh University

Status: A

Gender: F

Fide ID: 2410036

Standard: 1662 ⇒ 1632 (-30)

Allegro: 1662 ⇒ 1628 (-34)

Standard Games

Rnd	Opponent	Stat	Pub	Adj	Used	Col	Res
Edinburgh & Lothians League Premier
15	Chris James18892	A	1884	1884	1884	B	0
17	Douglas Will6473	A	1870	1870	1870	W	0
Edinburgh & Lothians League Division 2
21	Paul Girdwood11503	A	1564	1564	1564	B	½
43	Mark Gyalus31613	A	1606	1606	1606	B	0
Grade Calculation: • DARIMA DONITOVA-JOHNSTONE • 28314 • GRADED PLAYER CALCULATION • PUBLISHED GRADE: 1662 • STATUS: A • *** • RESULTS: • CHRIS JAMES \| 18892 \| LOSS \| PUB GRADE: 1884 \| ADJ GRADE (+0): 1884 \| USED GRADE: 1884 \| EXP: 0.221 • DOUGLAS WILL \| 6473 \| LOSS \| PUB GRADE: 1870 \| ADJ GRADE (+0): 1870 \| USED GRADE: 1870 \| EXP: 0.235 • PAUL GIRDWOOD \| 11503 \| DRAW \| PUB GRADE: 1564 \| ADJ GRADE (+0): 1564 \| USED GRADE: 1564 \| EXP: 0.634 • MARK GYALUS \| 31613 \| LOSS \| PUB GRADE: 1606 \| ADJ GRADE (+0): 1606 \| USED GRADE: 1606 \| EXP: 0.578 • ----- • CALCULATION STEPS: • 4 GRADABLE GAMES • QTY GRADABLE GAMES (G): 4 • ACTUAL SCORE (ACT): 0.5 • EXPECTED SCORE (EXP): 1.668 • PUBLISHED GRADE (PUB): 1662 • HIGHER OF G OR 30 (N): 30 • LOWER OF G OR 30 (n): 4 • CALCULATED DRIFT (D): 4.58 (to 2 d.p.) • APPLIED DRIFT (d): D x n / 30 = 4.58 x 4 / 30 = 1 (to 0 d.p.) • LIVE = PUB + (800 x (ACT - EXP) / N) + d • 1662 + (800 x (0.5 - 1.668) / 30) + 1 = 1632 (to 0 d.p.) • GRADE DELTA: -30 • LIVE GRADE: 1632 • *** • GRADING CRITERIA MET • PLAYER GRANTED LIVE GRADE OF 1632

Allegro Games

Rnd	Opponent	Stat	Pub	Adj	Used	Col	Res
Livingston Major Dec 2023
1	Vladyslav Drabych30232	J18	1559	1609	1609	W	0
2	Zachary Patton30423	J16	1491	1571	1571	B	0
3	Callum Hill31623	J10	1249	1389	1389	B	1
4	Ishan Kumar27691	J15	1557	1657	1657	W	0
5	John S Thompson6228	A	1470	1470	1470	W	1
Grade Calculation: • DARIMA DONITOVA-JOHNSTONE • 28314 • GRADED PLAYER CALCULATION • PUBLISHED GRADE: 1662 • STATUS: A • *** • RESULTS: • VLADYSLAV DRABYCH \| 30232 \| J18 \| LOSS \| PUB GRADE: 1559 \| ADJ GRADE (+50): 1609 \| USED GRADE: 1609 \| EXP: 0.574 • ZACHARY PATTON \| 30423 \| J16 \| LOSS \| PUB GRADE: 1491 \| ADJ GRADE (+80): 1571 \| USED GRADE: 1571 \| EXP: 0.624 • CALLUM HILL \| 31623 \| J10 \| WIN \| PUB GRADE: 1249 \| ADJ GRADE (+140): 1389 \| USED GRADE: 1389 \| EXP: 0.828 • ISHAN KUMAR \| 27691 \| J15 \| LOSS \| PUB GRADE: 1557 \| ADJ GRADE (+100): 1657 \| USED GRADE: 1657 \| EXP: 0.507 • JOHN S THOMPSON \| 6228 \| WIN \| PUB GRADE: 1470 \| ADJ GRADE (+0): 1470 \| USED GRADE: 1470 \| EXP: 0.748 • ----- • CALCULATION STEPS: • 5 GRADABLE GAMES • QTY GRADABLE GAMES (G): 5 • ACTUAL SCORE (ACT): 2.0 • EXPECTED SCORE (EXP): 3.281 • PUBLISHED GRADE (PUB): 1662 • HIGHER OF G OR 30 (N): 30 • LOWER OF G OR 30 (n): 5 • CALCULATED DRIFT (D): 0.85 (to 2 d.p.) • APPLIED DRIFT (d): D x n / 30 = 0.85 x 5 / 30 = 0 (to 0 d.p.) • LIVE = PUB + (800 x (ACT - EXP) / N) + d • 1662 + (800 x (2.0 - 3.281) / 30) + 0 = 1628 (to 0 d.p.) • GRADE DELTA: -34 • LIVE GRADE: 1628 • *** • GRADING CRITERIA MET • PLAYER GRANTED LIVE GRADE OF 1628