Home
Grading
Newcomers
Women's Chess
Contacts
Forum
Policies
Search Players
Results
Giant Killers
Fide Rating
2600 Club
UsersRobert A Gibb
PNUM: 27416
Club: Glasgow Polytechnic
Status: A
Gender: M
Federation: SCO
Fide ID: 2407779
Standard: 1573 ⇒ 1562 (-11)
Allegro: 1573 ⇒ 1528 (-45)
Standard Games
| Rnd | Opponent | Stat | Pub | Adj | Used | Col | Res | ||
|---|---|---|---|---|---|---|---|---|---|
| 1 | Antonios Floros3952 | A | 1798 | 1798 | 1798 | W | ½ | ||
| 2 | Mike Cavanagh3468 | A | 1789 | 1789 | 1789 | B | 0 | ||
| 3 | Jan M Thiel29900 | A | - | - | 1590 | W | ½ | ||
| 1 | Chrysoula-Paraskevi Mitraka29551 | J13 | 1187 | - | 1551 | B | ½ | ||
| 2 | Trevor Harley15210 | A | 1333 | 1333 | 1333 | W | 1 | ||
| 3 | David A Potts5670 | A | 1505 | 1505 | 1505 | B | 1 | ||
| 4 | Jordan J McNaught30208 | NEW | 1564 | 1604 | 1604 | W | ½ | ||
| 5 | Alex McTaggart5230 | A | 1645 | 1645 | 1645 | B | ½ | ||
| 10 | Jason Sharkey30835 | A | - | - | 1546 | W | 1 | ||
| 1 | Joseph Watson-McFie7616 | A | 1485 | 1485 | 1485 | B | 1 | ||
| 3 | Haroon Majeed30627 | A | 1820 | 1820 | 1820 | W | 0 | ||
| 5 | Guy Lyons4746 | A | 1693 | 1693 | 1693 | B | 0 | ||
| 14 | Alan Jelfs4482 | A | 1801 | 1801 | 1801 | B | 0 | ||
| 17 | Malcolm Tyre8055 | A | 1825 | 1825 | 1825 | B | 0 | ||
| 20 | Jeff Dunn3810 | A | 1322 | 1322 | 1322 | B | 1 | ||
| 23 | Andrew McCusker21604 | A | 1875 | 1875 | 1875 | B | 0 | ||
| 32 | David Deary13282 | A | 1837 | 1837 | 1837 | W | 0 | ||
| 34 | Thomas Tait6188 | A | 1506 | 1506 | 1506 | B | 1 | ||
| 37 | Ian A Marks4866 | A | 1793 | 1793 | 1793 | B | ½ | ||
| 1 | Kieran Wells29940 | NEW | 1245 | 1285 | 1285 | B | 0 | ||
| 2 | Brian Fitzpatrick16916 | A | 1032 | 1032 | 1173 | W | 1 | ||
| 4 | Cameron Wilson20389 | A | - | - | 1281 | B | ½ | ||
| 5 | Dairena Gaffney4010 | A | 1276 | 1276 | 1276 | W | 1 | ||
| 6 | Christopher Yapp30376 | NEW | 1724 | 1764 | 1764 | B | 0 | ||
| 7 | Eve Clark31473 | J18 | - | - | 1467 | W | 0 | ||
Live Grade Calculation:
• ROBERT A GIBB• 27416
• GRADED PLAYER CALCULATION
• PUBLISHED GRADE: 1573
• STATUS: A
• *****
• RESULTS:
• ANTONIOS FLOROS | 3952 | DRAW | PUB GRADE: 1798 | ADJ GRADE (+0): 1798 | USED GRADE: 1798 | EXP: 0.217
• MIKE CAVANAGH | 3468 | LOSS | PUB GRADE: 1789 | ADJ GRADE (+0): 1789 | USED GRADE: 1789 | EXP: 0.227
• JAN M THIEL | 29900 | DRAW | UNGRADED | EST GRADE: 1590 | USED GRADE: 1590 | EXP: 0.476
• CHRYSA MITRAKA | 29551 | J13 | DRAW | PUB GRADE: 1187 | EST GRADE: 1561 | USED GRADE: 1561 | EXP: 0.517
• TREVOR HARLEY | 15210 | WIN | PUB GRADE: 1333 | ADJ GRADE (+0): 1333 | USED GRADE: 1333 | EXP: 0.798
• DAVID A POTTS | 5670 | WIN | PUB GRADE: 1505 | ADJ GRADE (+0): 1505 | USED GRADE: 1505 | EXP: 0.595
• JORDAN J MCNAUGHT | 30208 | NEW | DRAW | PUB GRADE: 1564 | ADJ GRADE (+40): 1604 | USED GRADE: 1604 | EXP: 0.457
• ALEX MCTAGGART | 5230 | DRAW | PUB GRADE: 1645 | ADJ GRADE (+0): 1645 | USED GRADE: 1645 | EXP: 0.4
• JASON SHARKEY | 30835 | WIN | UNGRADED | EST GRADE: 1556 | USED GRADE: 1556 | EXP: 0.524
• JOSEPH WATSON-MCFIE | 7616 | WIN | PUB GRADE: 1485 | ADJ GRADE (+0): 1485 | USED GRADE: 1485 | EXP: 0.621
• HAROON MAJEED | 30627 | LOSS | PUB GRADE: 1820 | ADJ GRADE (+0): 1820 | USED GRADE: 1820 | EXP: 0.195
• GUY LYONS | 4746 | LOSS | PUB GRADE: 1693 | ADJ GRADE (+0): 1693 | USED GRADE: 1693 | EXP: 0.337
• ALAN JELFS | 4482 | LOSS | PUB GRADE: 1801 | ADJ GRADE (+0): 1801 | USED GRADE: 1801 | EXP: 0.214
• MALCOLM TYRE | 8055 | LOSS | PUB GRADE: 1825 | ADJ GRADE (+0): 1825 | USED GRADE: 1825 | EXP: 0.19
• JEFF DUNN | 3810 | WIN | PUB GRADE: 1322 | ADJ GRADE (+0): 1322 | USED GRADE: 1322 | EXP: 0.809
• ANDREW MCCUSKER | 21604 | LOSS | PUB GRADE: 1875 | ADJ GRADE (+0): 1875 | USED GRADE: 1875 | EXP: 0.147
• DAVID DEARY | 13282 | LOSS | PUB GRADE: 1837 | ADJ GRADE (+0): 1837 | USED GRADE: 1837 | EXP: 0.179
• THOMAS TAIT | 6188 | WIN | PUB GRADE: 1506 | ADJ GRADE (+0): 1506 | USED GRADE: 1506 | EXP: 0.593
• IAN A MARKS | 4866 | DRAW | PUB GRADE: 1793 | ADJ GRADE (+0): 1793 | USED GRADE: 1793 | EXP: 0.223
• KIERAN WELLS | 29940 | NEW | LOSS | PUB GRADE: 1245 | ADJ GRADE (+40): 1285 | USED GRADE: 1285 | EXP: 0.841
• BRIAN FITZPATRICK | 16916 | WIN | PUB GRADE: 1032 | ADJ GRADE (+0): 1032 | USED GRADE: 1173 | EXP: 0.918
• CAMERON WILSON | 20389 | DRAW | UNGRADED | EST GRADE: 1276 | USED GRADE: 1276 | EXP: 0.849
• DAIRENA GAFFNEY | 4010 | WIN | PUB GRADE: 1276 | ADJ GRADE (+0): 1276 | USED GRADE: 1276 | EXP: 0.849
• CHRISTOPHER YAPP | 30376 | NEW | LOSS | PUB GRADE: 1724 | ADJ GRADE (+40): 1764 | USED GRADE: 1764 | EXP: 0.253
• EVE CLARK | 31473 | J18 | LOSS | UNGRADED | EST GRADE: 1465 | USED GRADE: 1465 | EXP: 0.647
• -----
• CALCULATION STEPS:
• 25 GRADABLE GAMES
• QTY GRADABLE GAMES (G): 25
• ACTUAL SCORE (ACT): 11.5
• EXPECTED SCORE (EXP): 12.076
• PUBLISHED GRADE (PUB): 1573
• 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
• 1573 + (800 x (11.5 - 12.076) / 30) + 4 = 1562 (to 0 d.p.)
• GRADE DELTA: -11
• LIVE GRADE: 1562
• *****
• GRADING CRITERIA MET
• PLAYER GRANTED LIVE GRADE OF 1562
• *****
• LIVE GRADE FROM THE 2024 SEASON BECOMES THE PUBLISHED GRADE FOR THE 2025 SEASON
• PLAYER GRANTED A PUBLISHED GRADE OF 1562
Published Grade Calculation:
NO CALCULATIONAllegro Games
| Rnd | Opponent | Stat | Pub | Adj | Used | Col | Res | ||
|---|---|---|---|---|---|---|---|---|---|
| 1 | Andy Chisholm30859 | A | - | - | 1224 | W | 0 | ||
| 2 | Daniel Breslin3277 | A | 1665 | 1665 | 1665 | B | 0 | ||
| 3 | Yushu Huang30969 | J9 | 631 | - | 1173 | W | 1 | ||
| 4 | Scott Blackwell22843 | A | 937 | 937 | 1173 | B | 1 | ||
| 5 | Alagu Naachiappan Karthick29505 | J12 | 1230 | - | 1490 | B | 0 | ||
Live Grade Calculation:
• ROBERT A GIBB• 27416
• GRADED PLAYER CALCULATION
• PUBLISHED GRADE: 1573
• STATUS: A
• *****
• RESULTS:
• ANDY CHISHOLM | 30859 | LOSS | UNGRADED | EST GRADE: 1226 | USED GRADE: 1226 | EXP: 0.886
• DANIEL BRESLIN | 3277 | LOSS | PUB GRADE: 1665 | ADJ GRADE (+0): 1665 | USED GRADE: 1665 | EXP: 0.374
• YUSHU HUANG | 30969 | J9 | WIN | PUB GRADE: 631 | EST GRADE: 1048 | USED GRADE: 1173 | EXP: 0.918
• SCOTT BLACKWELL | 22843 | WIN | PUB GRADE: 937 | ADJ GRADE (+0): 937 | USED GRADE: 1173 | EXP: 0.918
• ALAGU NAACHIAPPAN KARTHICK | 29505 | J12 | LOSS | PUB GRADE: 1230 | EST GRADE: 1494 | USED GRADE: 1494 | EXP: 0.609
• -----
• CALCULATION STEPS:
• 5 GRADABLE GAMES
• QTY GRADABLE GAMES (G): 5
• ACTUAL SCORE (ACT): 2.0
• EXPECTED SCORE (EXP): 3.705
• PUBLISHED GRADE (PUB): 1573
• 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
• 1573 + (800 x (2.0 - 3.705) / 30) + 0 = 1528 (to 0 d.p.)
• GRADE DELTA: -45
• LIVE GRADE: 1528
• *****
• GRADING CRITERIA MET
• PLAYER GRANTED LIVE GRADE OF 1528
• *****
• LIVE GRADE FROM THE 2024 SEASON BECOMES THE PUBLISHED GRADE FOR THE 2025 SEASON
• PLAYER GRANTED A PUBLISHED GRADE OF 1528
Published Grade Calculation:
NO CALCULATIONNot listed at Blitz.