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Giant Killers
Fide Rating
2600 Club
UsersDavid A Potts
PNUM: 5670
Clubs: Bellshill & Greenwood
Status: A
Gender: M
Federation: SCO
Fide ID: 2405237
Standard: 1505 ⇒ 1511 (+6)
Allegro: 1505 ⇒ 1471 (-34)
Standard Games
| Rnd | Opponent | Stat | Pub | Adj | Used | Col | Res | ||
|---|---|---|---|---|---|---|---|---|---|
| 1 | Stuart Duff30392 | A | - | - | 1366 | B | 1 | ||
| 2 | Advik Mittal29444 | J10 | 1274 | 1414 | 1414 | W | ½ | ||
| 3 | Gordon Greig12499 | A | 1652 | 1652 | 1652 | B | 0 | ||
| 4 | Elyzaveta Kuznetsova30836 | J16 | 1374 | 1454 | 1454 | W | 1 | ||
| 5 | Yashwardhan Shankar29705 | J10 | - | - | 1479 | B | 1 | ||
| 1 | John M Cawston21097 | V | 1666 | 1666 | 1666 | B | 0 | ||
| 2 | Jonathan Kinnell31216 | J18 | - | - | 1406 | W | 0 | ||
| 3 | Harvey Duke16810 | A | 1309 | 1309 | 1309 | B | 1 | ||
| 4 | Christopher Nield28934 | J19 | 1417 | 1462 | 1462 | W | 0 | ||
| 5 | William Clinton3537 | A | 1669 | 1669 | 1669 | B | ½ | ||
| 1 | Derek Rankine29433 | A | 1332 | 1332 | 1332 | B | 1 | ||
| 3 | Robert A Gibb27416 | A | 1573 | 1573 | 1573 | W | 0 | ||
| 4 | David G Hall4230 | A | 1590 | 1590 | 1590 | B | ½ | ||
| 5 | Humam Al Dakl Alla29924 | J10 | 1426 | 1566 | 1566 | W | ½ | ||
| 2 | Gerry Brown7921 | A | 1342 | 1342 | 1342 | B | ½ | ||
| 3 | Josh Stewart31061 | J16 | - | - | 1691 | W | 0 | ||
| 4 | Benjamin Saunders6609 | A | 1437 | 1437 | 1437 | B | 1 | ||
| 5 | Graham Wilson27698 | A | 1543 | 1543 | 1543 | W | 1 | ||
| 1 | Daniel Deary22097 | A | 2051 | 2051 | 1905 | W | 0 | ||
| 2 | Mohamad Hedayati31485 | J16 | - | - | - | B | 1 | ||
| 3 | Alex McTaggart5230 | A | 1645 | 1645 | 1645 | W | ½ | ||
| 4 | Thomas Mackie23659 | A | 1141 | 1141 | 1141 | B | 1 | ||
| 2 | Jim A Smalls6014 | A | 1626 | 1626 | 1626 | W | 0 | ||
| 8 | Mark Irvine29110 | A | 1175 | 1175 | 1175 | B | ½ | ||
| 18 | Joseph Watson-McFie7616 | A | 1485 | 1485 | 1485 | W | ½ | ||
| 21 | Colin C Paterson5582 | A | 1508 | 1508 | 1508 | B | ½ | ||
| 32 | Matthew Hayhow31059 | A | - | - | 1298 | W | 1 | ||
| 44 | William McIntosh15465 | A | 1509 | 1509 | 1509 | W | 0 | ||
| 2 | Thomas Wilson Aitken3022 | A | 1355 | 1355 | 1355 | W | 1 | ||
| 6 | Brian Teaz24865 | A | 1521 | 1521 | 1521 | W | ½ | ||
| 17 | Ian G Brownlee3323 | A | 1543 | 1543 | 1543 | B | 0 | ||
| 22 | Robin Templeton6218 | A | 1651 | 1651 | 1651 | B | ½ | ||
| 23 | William L Kelly4555 | A | 1783 | 1783 | 1783 | W | ½ | ||
| 31 | David M Gillespie4080 | A | 1733 | 1733 | 1733 | B | ½ | ||
| 32 | Alastair McIntyre5098 | A | 1178 | 1178 | 1178 | W | 1 | ||
| 35 | Ian G Brownlee3323 | A | 1543 | 1543 | 1543 | W | 0 | ||
| 1 | Greig Gourlay8930 | A | 1207 | 1207 | 1207 | W | 1 | ||
| 5 | Tom Brisbane3280 | A | 1460 | 1460 | 1460 | W | ½ | ||
| 12 | Andrew W Davies3687 | A | 1888 | 1888 | 1888 | B | ½ | ||
| 14 | Igor Semenov29910 | J13 | 1337 | - | 1637 | W | ½ | ||
| 15 | Jeff Dunn3810 | A | 1322 | 1322 | 1322 | B | ½ | ||
| 18 | Zachary Patton30423 | J16 | 1604 | 1684 | 1684 | W | 1 | ||
| 20 | William Toland6278 | A | 1738 | 1738 | 1738 | W | ½ | ||
| 24 | Jason Sharkey30835 | A | - | - | 1546 | W | 0 | ||
| 29 | Richard Smart30294 | NEW | 1052 | 1092 | 1105 | W | 1 | ||
| 30 | Benjamin Saunders6609 | A | 1437 | 1437 | 1437 | W | ½ | ||
| 2 | Stephen David Harvey28173 | A | 1667 | 1667 | 1667 | B | ½ | ||
| 3 | Wojciech Kacperski32022 | A | 1706 | 1706 | 1706 | W | ½ | ||
| 4 | Joshua Crofts28207 | A | 1629 | 1629 | 1629 | B | 0 | ||
| 5 | Fraser McIntyre29928 | J16 | 1465 | 1545 | 1545 | W | ½ | ||
| 6 | Kevin Lee30472 | A | - | - | 1542 | B | 0 | ||
| 7 | Steve Thomson31861 | A | - | - | 1430 | W | 0 | ||
Live Grade Calculation:
• DAVID A POTTS• 5670
• GRADED PLAYER CALCULATION
• PUBLISHED GRADE: 1505
• STATUS: A
• *****
• RESULTS:
• STUART DUFF | 30392 | WIN | UNGRADED | EST GRADE: 1367 | USED GRADE: 1367 | EXP: 0.685
• ADVIK MITTAL | 29444 | J10 | DRAW | PUB GRADE: 1274 | ADJ GRADE (+140): 1414 | USED GRADE: 1414 | EXP: 0.624
• GORDON GREIG | 12499 | LOSS | PUB GRADE: 1652 | ADJ GRADE (+0): 1652 | USED GRADE: 1652 | EXP: 0.305
• ELYZAVETA KUZNETSOVA | 30836 | J16 | WIN | PUB GRADE: 1374 | ADJ GRADE (+80): 1454 | USED GRADE: 1454 | EXP: 0.571
• YASHWARDHAN SHANKAR | 29705 | J10 | WIN | UNGRADED | EST GRADE: 1499 | USED GRADE: 1499 | EXP: 0.508
• M JOHN CAWSTON | 21097 | V | LOSS | PUB GRADE: 1666 | ADJ GRADE (+0): 1666 | USED GRADE: 1666 | EXP: 0.288
• JONATHAN KINNELL | 31216 | J18 | LOSS | UNGRADED | EST GRADE: 1407 | USED GRADE: 1407 | EXP: 0.634
• HARVEY DUKE | 16810 | WIN | PUB GRADE: 1309 | ADJ GRADE (+0): 1309 | USED GRADE: 1309 | EXP: 0.753
• CHRISTOPHER NIELD | 28934 | J19 | LOSS | PUB GRADE: 1417 | ADJ GRADE (+45): 1462 | USED GRADE: 1462 | EXP: 0.56
• WILLIAM CLINTON | 3537 | DRAW | PUB GRADE: 1669 | ADJ GRADE (+0): 1669 | USED GRADE: 1669 | EXP: 0.284
• DEREK RANKINE | 29433 | WIN | PUB GRADE: 1332 | ADJ GRADE (+0): 1332 | USED GRADE: 1332 | EXP: 0.727
• ROBERT A GIBB | 27416 | LOSS | PUB GRADE: 1573 | ADJ GRADE (+0): 1573 | USED GRADE: 1573 | EXP: 0.405
• DAVID G HALL | 4230 | DRAW | PUB GRADE: 1590 | ADJ GRADE (+0): 1590 | USED GRADE: 1590 | EXP: 0.383
• HUMAM AL DAKL ALLA | 29924 | J10 | DRAW | PUB GRADE: 1426 | ADJ GRADE (+140): 1566 | USED GRADE: 1566 | EXP: 0.415
• GERRY BROWN | 7921 | DRAW | PUB GRADE: 1342 | ADJ GRADE (+0): 1342 | USED GRADE: 1342 | EXP: 0.715
• JOSH STEWART | 31061 | J16 | LOSS | UNGRADED | EST GRADE: 1691 | USED GRADE: 1691 | EXP: 0.259
• BENJAMIN SAUNDERS | 6609 | WIN | PUB GRADE: 1437 | ADJ GRADE (+0): 1437 | USED GRADE: 1437 | EXP: 0.595
• GRAHAM WILSON | 27698 | WIN | PUB GRADE: 1543 | ADJ GRADE (+0): 1543 | USED GRADE: 1543 | EXP: 0.447
• DANIEL DEARY | 22097 | LOSS | PUB GRADE: 2051 | ADJ GRADE (+0): 2051 | USED GRADE: 1905 | EXP: 0.082
• MOHAMAD HEDAYATI | 31485 | J16 | WIN | UNGRADED
• ALEX MCTAGGART | 5230 | DRAW | PUB GRADE: 1645 | ADJ GRADE (+0): 1645 | USED GRADE: 1645 | EXP: 0.313
• THOMAS MACKIE | 23659 | WIN | PUB GRADE: 1141 | ADJ GRADE (+0): 1141 | USED GRADE: 1141 | EXP: 0.897
• JIM A SMALLS | 6014 | LOSS | PUB GRADE: 1626 | ADJ GRADE (+0): 1626 | USED GRADE: 1626 | EXP: 0.336
• MARK IRVINE | 29110 | DRAW | PUB GRADE: 1175 | ADJ GRADE (+0): 1175 | USED GRADE: 1175 | EXP: 0.875
• JOSEPH WATSON-MCFIE | 7616 | DRAW | PUB GRADE: 1485 | ADJ GRADE (+0): 1485 | USED GRADE: 1485 | EXP: 0.528
• COLIN C PATERSON | 5582 | DRAW | PUB GRADE: 1508 | ADJ GRADE (+0): 1508 | USED GRADE: 1508 | EXP: 0.496
• MATTHEW HAYHOW | 31059 | WIN | UNGRADED | EST GRADE: 1296 | USED GRADE: 1296 | EXP: 0.766
• WILLIAM MCINTOSH | 15465 | LOSS | PUB GRADE: 1509 | ADJ GRADE (+0): 1509 | USED GRADE: 1509 | EXP: 0.494
• THOMAS WILSON AITKEN | 3022 | WIN | PUB GRADE: 1355 | ADJ GRADE (+0): 1355 | USED GRADE: 1355 | EXP: 0.699
• BRIAN TEAZ | 24865 | DRAW | PUB GRADE: 1521 | ADJ GRADE (+0): 1521 | USED GRADE: 1521 | EXP: 0.478
• IAN G BROWNLEE | 3323 | LOSS | PUB GRADE: 1543 | ADJ GRADE (+0): 1543 | USED GRADE: 1543 | EXP: 0.447
• ROBIN TEMPLETON | 6218 | DRAW | PUB GRADE: 1651 | ADJ GRADE (+0): 1651 | USED GRADE: 1651 | EXP: 0.306
• WILLIAM L KELLY | 4555 | DRAW | PUB GRADE: 1783 | ADJ GRADE (+0): 1783 | USED GRADE: 1783 | EXP: 0.168
• DAVID M GILLESPIE | 4080 | DRAW | PUB GRADE: 1733 | ADJ GRADE (+0): 1733 | USED GRADE: 1733 | EXP: 0.214
• ALASTAIR MCINTYRE | 5098 | WIN | PUB GRADE: 1178 | ADJ GRADE (+0): 1178 | USED GRADE: 1178 | EXP: 0.873
• IAN G BROWNLEE | 3323 | LOSS | PUB GRADE: 1543 | ADJ GRADE (+0): 1543 | USED GRADE: 1543 | EXP: 0.447
• GREIG GOURLAY | 8930 | WIN | PUB GRADE: 1207 | ADJ GRADE (+0): 1207 | USED GRADE: 1207 | EXP: 0.849
• TOM BRISBANE | 3280 | DRAW | PUB GRADE: 1460 | ADJ GRADE (+0): 1460 | USED GRADE: 1460 | EXP: 0.563
• ANDREW W DAVIES | 3687 | DRAW | PUB GRADE: 1888 | ADJ GRADE (+0): 1888 | USED GRADE: 1888 | EXP: 0.09
• IGOR SEMENOV | 29910 | J13 | DRAW | PUB GRADE: 1337 | EST GRADE: 1637 | USED GRADE: 1637 | EXP: 0.322
• JEFF DUNN | 3810 | DRAW | PUB GRADE: 1322 | ADJ GRADE (+0): 1322 | USED GRADE: 1322 | EXP: 0.738
• ZACHARY PATTON | 30423 | J16 | WIN | PUB GRADE: 1604 | ADJ GRADE (+80): 1684 | USED GRADE: 1684 | EXP: 0.266
• WILLIAM TOLAND | 6278 | DRAW | PUB GRADE: 1738 | ADJ GRADE (+0): 1738 | USED GRADE: 1738 | EXP: 0.209
• JASON SHARKEY | 30835 | LOSS | UNGRADED | EST GRADE: 1556 | USED GRADE: 1556 | EXP: 0.429
• RICHARD SMART | 30294 | NEW | WIN | PUB GRADE: 1052 | ADJ GRADE (+40): 1092 | USED GRADE: 1105 | EXP: 0.918
• BENJAMIN SAUNDERS | 6609 | DRAW | PUB GRADE: 1437 | ADJ GRADE (+0): 1437 | USED GRADE: 1437 | EXP: 0.595
• STEPHEN DAVID HARVEY | 28173 | DRAW | PUB GRADE: 1667 | ADJ GRADE (+0): 1667 | USED GRADE: 1667 | EXP: 0.287
• WOJCIECH KACPERSKI | 32022 | DRAW | PUB GRADE: 1706 | ADJ GRADE (+0): 1706 | USED GRADE: 1706 | EXP: 0.242
• JOSHUA CROFTS | 28207 | LOSS | PUB GRADE: 1629 | ADJ GRADE (+0): 1629 | USED GRADE: 1629 | EXP: 0.332
• FRASER MCINTYRE | 29928 | J16 | DRAW | PUB GRADE: 1465 | ADJ GRADE (+80): 1545 | USED GRADE: 1545 | EXP: 0.444
• KEVIN LEE | 30472 | LOSS | UNGRADED | EST GRADE: 1542 | USED GRADE: 1542 | EXP: 0.448
• STEVE THOMSON | 31861 | LOSS | UNGRADED | EST GRADE: 1430 | USED GRADE: 1430 | EXP: 0.604
• -----
• CALCULATION STEPS:
• 51 GRADABLE GAMES
• QTY GRADABLE GAMES (G): 51
• ACTUAL SCORE (ACT): 25.0
• EXPECTED SCORE (EXP): 24.913
• PUBLISHED GRADE (PUB): 1505
• HIGHER OF G OR 30 (N): 51
• LOWER OF G OR 30 (n): 30
• CALCULATED DRIFT (D): 4.63 (to 2 d.p.)
• APPLIED DRIFT (d): D x n / 30 = 4.63 x 30 / 30 = 5 (to 0 d.p.)
• LIVE = PUB + (800 x (ACT - EXP) / N) + d
• 1505 + (800 x (25.0 - 24.913) / 51) + 5 = 1511 (to 0 d.p.)
• GRADE DELTA: +6
• LIVE GRADE: 1511
• *****
• GRADING CRITERIA MET
• PLAYER GRANTED LIVE GRADE OF 1511
• *****
• LIVE GRADE FROM THE 2024 SEASON BECOMES THE PUBLISHED GRADE FOR THE 2025 SEASON
• PLAYER GRANTED A PUBLISHED GRADE OF 1511
Published Grade Calculation:
NO CALCULATIONAllegro Games
| Rnd | Opponent | Stat | Pub | Adj | Used | Col | Res | ||
|---|---|---|---|---|---|---|---|---|---|
| 1 | Brian Hamilton31424 | A | - | - | - | W | 1 | ||
| 2 | Sergey Ignatov30773 | A | 2074 | 2074 | 1905 | B | 0 | ||
| 3 | Andy Chisholm30859 | A | - | - | 1224 | W | 0 | ||
| 4 | Laurentiu Archip28865 | A | 1600 | 1600 | 1600 | B | 0 | ||
| 5 | Arya Karthik31436 | J11 | - | - | - | W | 1 | ||
Live Grade Calculation:
• DAVID A POTTS• 5670
• GRADED PLAYER CALCULATION
• PUBLISHED GRADE: 1505
• STATUS: A
• *****
• RESULTS:
• BRIAN HAMILTON | 31424 | WIN | UNGRADED
• SERGEY IGNATOV | 30773 | LOSS | PUB GRADE: 2074 | ADJ GRADE (+0): 2074 | USED GRADE: 1905 | EXP: 0.082
• ANDY CHISHOLM | 30859 | LOSS | UNGRADED | EST GRADE: 1226 | USED GRADE: 1226 | EXP: 0.833
• LAURENTIU ARCHIP | 28865 | LOSS | PUB GRADE: 1600 | ADJ GRADE (+0): 1600 | USED GRADE: 1600 | EXP: 0.37
• ARYA KARTHIK | 31436 | J11 | WIN | UNGRADED
• -----
• CALCULATION STEPS:
• 3 GRADABLE GAMES
• QTY GRADABLE GAMES (G): 3
• ACTUAL SCORE (ACT): 0.0
• EXPECTED SCORE (EXP): 1.285
• PUBLISHED GRADE (PUB): 1505
• HIGHER OF G OR 30 (N): 30
• LOWER OF G OR 30 (n): 3
• CALCULATED DRIFT (D): 0.85 (to 2 d.p.)
• APPLIED DRIFT (d): D x n / 30 = 0.85 x 3 / 30 = 0 (to 0 d.p.)
• LIVE = PUB + (800 x (ACT - EXP) / N) + d
• 1505 + (800 x (0.0 - 1.285) / 30) + 0 = 1471 (to 0 d.p.)
• GRADE DELTA: -34
• LIVE GRADE: 1471
• *****
• GRADING CRITERIA MET
• PLAYER GRANTED LIVE GRADE OF 1471
• *****
• LIVE GRADE FROM THE 2024 SEASON BECOMES THE PUBLISHED GRADE FOR THE 2025 SEASON
• PLAYER GRANTED A PUBLISHED GRADE OF 1471
Published Grade Calculation:
NO CALCULATIONNot listed at Blitz.