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Giant Killers
Fide Rating
2600 Club
UsersRob Colston
PNUM: 18347
Club: Bearsden
Status: A
Gender: M
Federation: SCO
Fide ID: 2408406
Standard: 1993 ⇒ 1984 (-9)
Allegro: 1991 ⇒ 1970 (-21)
Standard Games
| Rnd | Opponent | Stat | Pub | Adj | Used | Col | Res | ||
|---|---|---|---|---|---|---|---|---|---|
| 2 | Jake M Sanger22551 | J20 | 2122 | 2162 | 2162 | W | 0 | ||
| 5 | Andrew J Muir IM5400 | A | 2206 | 2206 | 2206 | W | 0 | ||
| 4 | Nicholas P Walker30463 | A | 2112 | 2112 | 2112 | B | ½ | ||
Live Grade Calculation:
• ROB COLSTON• 18347
• GRADED PLAYER CALCULATION
• PUBLISHED GRADE: 1993
• STATUS: A
• *****
• RESULTS:
• JAKE M SANGER | 22551 | J20 | LOSS | PUB GRADE: 2122 | ADJ GRADE (+40): 2162 | USED GRADE: 2162 | EXP: 0.278
• ANDREW J MUIR | 5400 | LOSS | PUB GRADE: 2206 | ADJ GRADE (+0): 2206 | USED GRADE: 2206 | EXP: 0.23
• NICHOLAS P WALKER | 30463 | DRAW | PUB GRADE: 2112 | ADJ GRADE (+0): 2112 | USED GRADE: 2112 | EXP: 0.338
• -----
• CALCULATION STEPS:
• 3 GRADABLE GAMES
• QTY GRADABLE GAMES (G): 3
• ACTUAL SCORE (ACT): 0.5
• EXPECTED SCORE (EXP): 0.846
• PUBLISHED GRADE (PUB): 1993
• HIGHER OF G OR 30 (N): 30
• LOWER OF G OR 30 (n): 3
• CALCULATED DRIFT (D): 0.57 (to 2 d.p.)
• APPLIED DRIFT (d): D x n / 30 = 0.57 x 3 / 30 = 0 (to 0 d.p.)
• LIVE = PUB + (800 x (ACT - EXP) / N) + d
• 1993 + (800 x (0.5 - 0.846) / 30) + 0 = 1984 (to 0 d.p.)
• GRADE DELTA: -9
• LIVE GRADE: 1984
• *****
• GRADING CRITERIA MET
• PLAYER GRANTED LIVE GRADE OF 1984
Published Grade Calculation:
• ROB COLSTON• 18347
• GRADED PLAYER CALCULATION
• PUBLISHED GRADE: 1961
• STATUS: A
• *****
• RESULTS:
• ALLAN THOMPSON | 30632 | WIN | UNGRADED | EST GRADE: 1486 | USED GRADE: 1561 | EXP: 0.918
• ALVARO RODRIGUEZ ROSALES | 28836 | J16 | WIN | PUB GRADE: 1211 | ADJ GRADE (+80): 1291 | USED GRADE: 1561 | EXP: 0.918
• J STUART CALLISON | 3390 | DRAW | PUB GRADE: 1680 | ADJ GRADE (+0): 1680 | USED GRADE: 1680 | EXP: 0.835
• ISHAN KUMAR | 27691 | J15 | WIN | PUB GRADE: 1575 | ADJ GRADE (+100): 1675 | USED GRADE: 1675 | EXP: 0.84
• J MEL BURT | 3365 | WIN | PUB GRADE: 1552 | ADJ GRADE (+0): 1552 | USED GRADE: 1561 | EXP: 0.918
• J MEL BURT | 3365 | WIN | PUB GRADE: 1552 | ADJ GRADE (+0): 1552 | USED GRADE: 1561 | EXP: 0.918
• JONATHAN MCKAY | 24546 | J20 | DRAW | PUB GRADE: 1979 | ADJ GRADE (+40): 2019 | USED GRADE: 2019 | EXP: 0.419
• PAUL F MAIOLANI | 4837 | DRAW | PUB GRADE: 1777 | ADJ GRADE (+0): 1777 | USED GRADE: 1777 | EXP: 0.739
• LENNART KOEHN | 23386 | DRAW | PUB GRADE: 2187 | ADJ GRADE (+0): 2187 | USED GRADE: 2187 | EXP: 0.216
• JOHN LARKIN | 4647 | WIN | PUB GRADE: 1460 | ADJ GRADE (+0): 1460 | USED GRADE: 1561 | EXP: 0.918
• PHIL S MUIR | 5402 | WIN | PUB GRADE: 1713 | ADJ GRADE (+0): 1713 | USED GRADE: 1713 | EXP: 0.806
• RHYS MCCROSSON | 21825 | DRAW | PUB GRADE: 1582 | ADJ GRADE (+0): 1582 | USED GRADE: 1582 | EXP: 0.907
• ROSIE A GIULIAN | 4094 | DRAW | PUB GRADE: 1885 | ADJ GRADE (+0): 1885 | USED GRADE: 1885 | EXP: 0.605
• ADITYA SRIVASTAVA | 29367 | J15 | DRAW | PUB GRADE: 1638 | ADJ GRADE (+100): 1738 | USED GRADE: 1738 | EXP: 0.781
• MAX COCHRANE | 30098 | NEW | WIN | PUB GRADE: 1649 | ADJ GRADE (+40): 1689 | USED GRADE: 1689 | EXP: 0.828
• DANIEL SAVIDGE | 31499 | WIN | PUB GRADE: 2013 | ADJ GRADE (+0): 2013 | USED GRADE: 2013 | EXP: 0.427
• JAINILL VADALIA | 28248 | J13 | WIN | PUB GRADE: 1750 | ADJ GRADE (+130): 1880 | USED GRADE: 1880 | EXP: 0.611
• LENNART KOEHN | 23386 | DRAW | PUB GRADE: 2187 | ADJ GRADE (+0): 2187 | USED GRADE: 2187 | EXP: 0.216
• GRAHAM M DOBBIE | 3740 | WIN | PUB GRADE: 1834 | ADJ GRADE (+0): 1834 | USED GRADE: 1834 | EXP: 0.672
• JOHN B HENDERSON | 4322 | LOSS | PUB GRADE: 2027 | ADJ GRADE (+0): 2027 | USED GRADE: 2027 | EXP: 0.408
• -----
• CALCULATION STEPS:
• 20 GRADABLE GAMES
• QTY GRADABLE GAMES (G): 20
• ACTUAL SCORE (ACT): 15.0
• EXPECTED SCORE (EXP): 13.900
• PUBLISHED GRADE (PUB): 1961
• HIGHER OF G OR 30 (N): 30
• LOWER OF G OR 30 (n): 20
• CALCULATED DRIFT (D): 4.63 (to 2 d.p.)
• APPLIED DRIFT (d): D x n / 30 = 4.63 x 20 / 30 = 3 (to 0 d.p.)
• LIVE = PUB + (800 x (ACT - EXP) / N) + d
• 1961 + (800 x (15.0 - 13.900) / 30) + 3 = 1993 (to 0 d.p.)
• GRADE DELTA: +32
• LIVE GRADE: 1993
• *****
• GRADING CRITERIA MET
• PLAYER GRANTED LIVE GRADE OF 1993
• *****
• LIVE GRADE FROM THE 2024 SEASON BECOMES THE PUBLISHED GRADE FOR THE 2025 SEASON
• PLAYER GRANTED A PUBLISHED GRADE OF 1993
Allegro Games
| Rnd | Opponent | Stat | Pub | Adj | Used | Col | Res | ||
|---|---|---|---|---|---|---|---|---|---|
| 1 | Eve Clark31473 | J19 | - | - | 1591 | W | 1 | ||
| 2 | Aryan Munshi27788 | J17 | 1728 | 1783 | 1783 | B | 0 | ||
| 3 | Stephen Rettie5763 | A | 1604 | 1604 | 1604 | B | 1 | ||
| 4 | Patrick Chadwick27480 | A | 1468 | 1468 | 1591 | W | 1 | ||
| 5 | Sam Cook26394 | J20 | 1721 | 1761 | 1761 | B | ½ | ||
Live Grade Calculation:
• ROB COLSTON• 18347
• GRADED PLAYER CALCULATION
• PUBLISHED GRADE: 1991
• STATUS: A
• *****
• RESULTS:
• EVE CLARK | 31473 | J19 | WIN | UNGRADED | TEMP GRADE: 1243 | USED GRADE: 1591 | EXP: 0.918
• ARYAN MUNSHI | 27788 | J17 | LOSS | PUB GRADE: 1728 | ADJ GRADE (+55): 1783 | USED GRADE: 1783 | EXP: 0.765
• STEPHEN RETTIE | 5763 | WIN | PUB GRADE: 1604 | ADJ GRADE (+0): 1604 | USED GRADE: 1604 | EXP: 0.912
• PATRICK CHADWICK | 27480 | WIN | PUB GRADE: 1468 | ADJ GRADE (+0): 1468 | USED GRADE: 1591 | EXP: 0.918
• SAM COOK | 26394 | J20 | DRAW | PUB GRADE: 1721 | ADJ GRADE (+40): 1761 | USED GRADE: 1761 | EXP: 0.788
• -----
• CALCULATION STEPS:
• 5 GRADABLE GAMES
• QTY GRADABLE GAMES (G): 5
• ACTUAL SCORE (ACT): 3.5
• EXPECTED SCORE (EXP): 4.301
• PUBLISHED GRADE (PUB): 1991
• HIGHER OF G OR 30 (N): 30
• LOWER OF G OR 30 (n): 5
• CALCULATED DRIFT (D): 0.44 (to 2 d.p.)
• APPLIED DRIFT (d): D x n / 30 = 0.44 x 5 / 30 = 0 (to 0 d.p.)
• LIVE = PUB + (800 x (ACT - EXP) / N) + d
• 1991 + (800 x (3.5 - 4.301) / 30) + 0 = 1970 (to 0 d.p.)
• GRADE DELTA: -21
• LIVE GRADE: 1970
• *****
• GRADING CRITERIA MET
• PLAYER GRANTED LIVE GRADE OF 1970
Published Grade Calculation:
• ROB COLSTON• 18347
• GRADED PLAYER CALCULATION
• PUBLISHED GRADE: 1970
• STATUS: A
• *****
• RESULTS:
• IAIN A SHIELDS | 30127 | WIN | PUB GRADE: 1142 | ADJ GRADE (+0): 1142 | USED GRADE: 1142 | RESULT VOID DUE TO THE 735 RULE
• JOHN MCKENNA | 5128 | WIN | PUB GRADE: 1690 | ADJ GRADE (+0): 1690 | USED GRADE: 1690 | EXP: 0.834
• ANDREW MACQUEEN | 4815 | WIN | PUB GRADE: 1762 | ADJ GRADE (+0): 1762 | USED GRADE: 1762 | EXP: 0.765
• RAJ BHOPAL | 22894 | DRAW | PUB GRADE: 1814 | ADJ GRADE (+0): 1814 | USED GRADE: 1814 | EXP: 0.706
• MUHAMMAD AL DAKL ALLA | 29647 | WIN | PUB GRADE: 1594 | ADJ GRADE (+0): 1594 | USED GRADE: 1594 | EXP: 0.905
• ANDREW N GREET | 21675 | DRAW | PUB GRADE: 2486 | ADJ GRADE (+0): 2486 | USED GRADE: 2370 | EXP: 0.082
• ALEX LANE | 30162 | WIN | PUB GRADE: 1279 | ADJ GRADE (+0): 1279 | USED GRADE: 1570 | EXP: 0.918
• ALISTAIR M AHMED | 7890 | WIN | PUB GRADE: 1624 | ADJ GRADE (+0): 1624 | USED GRADE: 1624 | EXP: 0.886
• STEPHEN G MCQUILLAN | 5223 | LOSS | PUB GRADE: 1899 | ADJ GRADE (+0): 1899 | USED GRADE: 1899 | EXP: 0.598
• JOHN LARKIN | 4647 | WIN | PUB GRADE: 1460 | ADJ GRADE (+0): 1460 | USED GRADE: 1570 | EXP: 0.918
• JAINILL VADALIA | 28248 | J13 | DRAW | PUB GRADE: 1660 | ADJ GRADE (+130): 1790 | USED GRADE: 1790 | EXP: 0.735
• MARVIN GERA | 28464 | J15 | WIN | PUB GRADE: 1753 | ADJ GRADE (+100): 1853 | USED GRADE: 1853 | EXP: 0.659
• ESWAR THEAGARAJAN | 30582 | WIN | PUB GRADE: 1500 | ADJ GRADE (+0): 1500 | USED GRADE: 1570 | EXP: 0.918
• ANDREW N GREET | 21675 | LOSS | PUB GRADE: 2486 | ADJ GRADE (+0): 2486 | USED GRADE: 2370 | EXP: 0.082
• ANDREW MCCUSKER | 21604 | WIN | PUB GRADE: 1786 | ADJ GRADE (+0): 1786 | USED GRADE: 1786 | EXP: 0.739
• ROSS BLACKFORD | 28276 | J17 | LOSS | PUB GRADE: 1795 | ADJ GRADE (+55): 1850 | USED GRADE: 1850 | EXP: 0.663
• DANIEL KITAEV | 29122 | J15 | WIN | PUB GRADE: 1756 | ADJ GRADE (+100): 1856 | USED GRADE: 1856 | EXP: 0.655
• ANDREW MCCUSKER | 21604 | WIN | PUB GRADE: 1786 | ADJ GRADE (+0): 1786 | USED GRADE: 1786 | EXP: 0.739
• YEVGENI SPRENGER DE LA IGLESIA | 31357 | J14 | WIN | PUB GRADE: 1869 | ADJ GRADE (+120): 1989 | USED GRADE: 1989 | EXP: 0.473
• HAROON MAJEED | 30627 | DRAW | PUB GRADE: 1820 | ADJ GRADE (+0): 1820 | USED GRADE: 1820 | EXP: 0.699
• TOM LEAH | 30083 | DRAW | PUB GRADE: 1758 | ADJ GRADE (+0): 1758 | USED GRADE: 1758 | EXP: 0.769
• -----
• CALCULATION STEPS:
• 20 GRADABLE GAMES
• QTY GRADABLE GAMES (G): 20
• ACTUAL SCORE (ACT): 14.5
• EXPECTED SCORE (EXP): 13.743
• PUBLISHED GRADE (PUB): 1970
• HIGHER OF G OR 30 (N): 30
• LOWER OF G OR 30 (n): 20
• CALCULATED DRIFT (D): 0.85 (to 2 d.p.)
• APPLIED DRIFT (d): D x n / 30 = 0.85 x 20 / 30 = 1 (to 0 d.p.)
• LIVE = PUB + (800 x (ACT - EXP) / N) + d
• 1970 + (800 x (14.5 - 13.743) / 30) + 1 = 1991 (to 0 d.p.)
• GRADE DELTA: +21
• LIVE GRADE: 1991
• *****
• GRADING CRITERIA MET
• PLAYER GRANTED LIVE GRADE OF 1991
• *****
• LIVE GRADE FROM THE 2024 SEASON BECOMES THE PUBLISHED GRADE FOR THE 2025 SEASON
• PLAYER GRANTED A PUBLISHED GRADE OF 1991
Not listed at Blitz.