Home
Grading
Newcomers
Women's Chess
Contacts
Forum
Policies
Search Players
Results
Giant Killers
Fide Rating
2600 Club
UsersJohn Williamson
PNUM: 6488
Clubs: Blairgowrie & Perth
Status: A
Gender: M
Federation: SCO
Fide ID: 2406527
Standard: 1424 ⇒ 1374 (-50)
Allegro: 1406 ⇒ 1372 (-34)
Standard Games
| Rnd | Opponent | Stat | Pub | Adj | Used | Col | Res | ||
|---|---|---|---|---|---|---|---|---|---|
| 1 | Edwin A Spencer6072 | A | 2132 | 2132 | 1824 | B | 0 | ||
| 2 | Lewis Bisset31439 | J18 | - | - | 1182 | W | 0 | ||
| 3 | Sean Dick31860 | A | - | - | 1113 | B | 0 | ||
| 4 | Steve Thomson31861 | A | - | - | 1430 | W | 1 | ||
| 5 | Stuart Neave22715 | A | - | - | 1390 | B | 0 | ||
| 9 | Paul R Anderson29355 | A | 1383 | 1383 | 1383 | B | 1 | ||
| 11 | Doug Smart31494 | A | - | - | 1024 | W | 1 | ||
| 26 | David Ewing30216 | A | - | - | 1118 | B | 1 | ||
| 28 | Adam Brittain30057 | J20 | 1153 | 1193 | 1193 | W | 0 | ||
| 37 | Raymond Flood3951 | A | 1442 | 1442 | 1442 | W | 1 | ||
| 4 | David C Montgomery10572 | A | 1575 | 1575 | 1575 | W | 0 | ||
| 9 | Frankie Murray5433 | A | 1615 | 1615 | 1615 | B | 1 | ||
| 22 | Alistair K J MacNaughton11929 | A | 1647 | 1647 | 1647 | B | 0 | ||
| 29 | Sean J Flanagan30186 | A | 1557 | 1557 | 1557 | W | 0 | ||
| 33 | Muhammad Al Dakl Alla29647 | NEW | 1736 | 1776 | 1776 | W | ½ | ||
| 38 | Alastair G Dawson13697 | A | 1764 | 1764 | 1764 | B | 0 | ||
| 45 | Stuart Marchbank8398 | A | 1641 | 1641 | 1641 | W | 0 | ||
| 17 | Graham Atkins7363 | A | 1302 | 1302 | 1302 | B | 0 | ||
| 27 | Kam Wan28918 | A | 1586 | 1586 | 1586 | B | 1 | ||
| 1 | Ian M Caldow3385 | A | 1397 | 1397 | 1397 | W | ½ | ||
| 2 | Ian Washington10183 | A | 1317 | 1317 | 1317 | B | 0 | ||
| 6 | David G Hall4230 | A | 1590 | 1590 | 1590 | W | ½ | ||
| 10 | Michael J Roth9972 | A | 1459 | 1459 | 1459 | B | 1 | ||
| 11 | David G Hall4230 | A | 1590 | 1590 | 1590 | B | 0 | ||
| 13 | Michael J Roth9972 | A | 1459 | 1459 | 1459 | W | 0 | ||
Live Grade Calculation:
• JOHN WILLIAMSON• 6488
• GRADED PLAYER CALCULATION
• PUBLISHED GRADE: 1424
• STATUS: A
• *****
• RESULTS:
• EDWIN A SPENCER | 6072 | LOSS | PUB GRADE: 2132 | ADJ GRADE (+0): 2132 | USED GRADE: 1824 | EXP: 0.082
• LEWIS BISSET | 31439 | J18 | LOSS | UNGRADED | EST GRADE: 1182 | USED GRADE: 1182 | EXP: 0.8
• SEAN DICK | 31860 | LOSS | UNGRADED | TEMP GRADE: 1113 | USED GRADE: 1113 | EXP: 0.861
• STEVE THOMSON | 31861 | WIN | UNGRADED | EST GRADE: 1430 | USED GRADE: 1430 | EXP: 0.492
• STUART NEAVE | 22715 | LOSS | UNGRADED | EST GRADE: 1391 | USED GRADE: 1391 | EXP: 0.546
• PAUL R ANDERSON | 29355 | WIN | PUB GRADE: 1383 | ADJ GRADE (+0): 1383 | USED GRADE: 1383 | EXP: 0.557
• DOUG SMART | 31494 | WIN | UNGRADED | TEMP GRADE: 865 | USED GRADE: 1024 | EXP: 0.918
• DAVID EWING | 30216 | WIN | UNGRADED | EST GRADE: 1119 | USED GRADE: 1119 | EXP: 0.856
• ADAM BRITTAIN | 30057 | J20 | LOSS | PUB GRADE: 1153 | ADJ GRADE (+40): 1193 | USED GRADE: 1193 | EXP: 0.789
• RAYMOND FLOOD | 3951 | WIN | PUB GRADE: 1442 | ADJ GRADE (+0): 1442 | USED GRADE: 1442 | EXP: 0.475
• DAVID C MONTGOMERY | 10572 | LOSS | PUB GRADE: 1575 | ADJ GRADE (+0): 1575 | USED GRADE: 1575 | EXP: 0.3
• FRANKIE MURRAY | 5433 | WIN | PUB GRADE: 1615 | ADJ GRADE (+0): 1615 | USED GRADE: 1615 | EXP: 0.253
• ALISTAIR K J MACNAUGHTON | 11929 | LOSS | PUB GRADE: 1647 | ADJ GRADE (+0): 1647 | USED GRADE: 1647 | EXP: 0.219
• SEAN J FLANAGAN | 30186 | LOSS | PUB GRADE: 1557 | ADJ GRADE (+0): 1557 | USED GRADE: 1557 | EXP: 0.32
• MUHAMMAD AL DAKL ALLA | 29647 | NEW | DRAW | PUB GRADE: 1736 | ADJ GRADE (+40): 1776 | USED GRADE: 1776 | EXP: 0.111
• ALASTAIR G DAWSON | 13697 | LOSS | PUB GRADE: 1764 | ADJ GRADE (+0): 1764 | USED GRADE: 1764 | EXP: 0.119
• STUART MARCHBANK | 8398 | LOSS | PUB GRADE: 1641 | ADJ GRADE (+0): 1641 | USED GRADE: 1641 | EXP: 0.226
• GRAHAM ATKINS | 7363 | LOSS | PUB GRADE: 1302 | ADJ GRADE (+0): 1302 | USED GRADE: 1302 | EXP: 0.665
• KAM WAN | 28918 | WIN | PUB GRADE: 1586 | ADJ GRADE (+0): 1586 | USED GRADE: 1586 | EXP: 0.287
• IAN M CALDOW | 3385 | DRAW | PUB GRADE: 1397 | ADJ GRADE (+0): 1397 | USED GRADE: 1397 | EXP: 0.538
• IAN WASHINGTON | 10183 | LOSS | PUB GRADE: 1317 | ADJ GRADE (+0): 1317 | USED GRADE: 1317 | EXP: 0.646
• DAVID G HALL | 4230 | DRAW | PUB GRADE: 1590 | ADJ GRADE (+0): 1590 | USED GRADE: 1590 | EXP: 0.282
• MICHAEL J ROTH | 9972 | WIN | PUB GRADE: 1459 | ADJ GRADE (+0): 1459 | USED GRADE: 1459 | EXP: 0.451
• DAVID G HALL | 4230 | LOSS | PUB GRADE: 1590 | ADJ GRADE (+0): 1590 | USED GRADE: 1590 | EXP: 0.282
• MICHAEL J ROTH | 9972 | LOSS | PUB GRADE: 1459 | ADJ GRADE (+0): 1459 | USED GRADE: 1459 | EXP: 0.451
• -----
• CALCULATION STEPS:
• 25 GRADABLE GAMES
• QTY GRADABLE GAMES (G): 25
• ACTUAL SCORE (ACT): 9.5
• EXPECTED SCORE (EXP): 11.526
• PUBLISHED GRADE (PUB): 1424
• HIGHER OF G OR 30 (N): 30
• LOWER OF G OR 30 (n): 25
• CALCULATED DRIFT (D): 4.63 (to 2 d.p.)
• APPLIED DRIFT (d): D x n / 30 = 4.63 x 25 / 30 = 4 (to 0 d.p.)
• LIVE = PUB + (800 x (ACT - EXP) / N) + d
• 1424 + (800 x (9.5 - 11.526) / 30) + 4 = 1374 (to 0 d.p.)
• GRADE DELTA: -50
• LIVE GRADE: 1374
• *****
• GRADING CRITERIA MET
• PLAYER GRANTED LIVE GRADE OF 1374
• *****
• LIVE GRADE FROM THE 2024 SEASON BECOMES THE PUBLISHED GRADE FOR THE 2025 SEASON
• PLAYER GRANTED A PUBLISHED GRADE OF 1374
Published Grade Calculation:
NO CALCULATIONAllegro Games
| Rnd | Opponent | Stat | Pub | Adj | Used | Col | Res | ||
|---|---|---|---|---|---|---|---|---|---|
| 1 | Edwin A Spencer6072 | A | 2077 | 2077 | 1806 | B | 0 | ||
| 2 | John Shovlin9973 | A | 869 | 869 | 1006 | W | 1 | ||
| 3 | Andrew Sutherland10980 | A | 1664 | 1664 | 1664 | B | 0 | ||
| 4 | Stephen D Mannion4857 | A | 1569 | 1569 | 1569 | W | 0 | ||
| 5 | Eve Kenicer29913 | J20 | 1103 | 1143 | 1143 | B | 0 | ||
Live Grade Calculation:
• JOHN WILLIAMSON• 6488
• GRADED PLAYER CALCULATION
• PUBLISHED GRADE: 1406
• STATUS: A
• *****
• RESULTS:
• EDWIN A SPENCER | 6072 | LOSS | PUB GRADE: 2077 | ADJ GRADE (+0): 2077 | USED GRADE: 1806 | EXP: 0.082
• JOHN SHOVLIN | 9973 | WIN | PUB GRADE: 869 | ADJ GRADE (+0): 869 | USED GRADE: 1006 | EXP: 0.918
• ANDREW SUTHERLAND | 10980 | LOSS | PUB GRADE: 1664 | ADJ GRADE (+0): 1664 | USED GRADE: 1664 | EXP: 0.184
• STEPHEN D MANNION | 4857 | LOSS | PUB GRADE: 1569 | ADJ GRADE (+0): 1569 | USED GRADE: 1569 | EXP: 0.285
• EVE KENICER | 29913 | J20 | LOSS | PUB GRADE: 1103 | ADJ GRADE (+40): 1143 | USED GRADE: 1143 | EXP: 0.82
• -----
• CALCULATION STEPS:
• 5 GRADABLE GAMES
• QTY GRADABLE GAMES (G): 5
• ACTUAL SCORE (ACT): 1.0
• EXPECTED SCORE (EXP): 2.289
• PUBLISHED GRADE (PUB): 1406
• 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
• 1406 + (800 x (1.0 - 2.289) / 30) + 0 = 1372 (to 0 d.p.)
• GRADE DELTA: -34
• LIVE GRADE: 1372
• *****
• GRADING CRITERIA MET
• PLAYER GRANTED LIVE GRADE OF 1372
• *****
• LIVE GRADE FROM THE 2024 SEASON BECOMES THE PUBLISHED GRADE FOR THE 2025 SEASON
• PLAYER GRANTED A PUBLISHED GRADE OF 1372
Published Grade Calculation:
NO CALCULATIONNot listed at Blitz.