Last updated: Saturday April 20, 2024
Data is based on BBO events. I do not claim to have all boards. The estimated number of cheating pairs is based on the number of pairs exceeding a cheating metric established from volunteers deciding if a pair is cheating. For each NBO, the actual numbers are run. Almost certainly the number of actual cheating pairs is higher than the number shown as the cheating metric is high. The values for a minimum of 1,000 boards are shown first, there is another table with the values for a minimum of 500 boards as a partnership shown afterwards.
Threshold: 1,000 total boards as a partnership.
| Country | Number of boards |
Pairs with more than 1,000 boards |
Estimated number of cheating pairs |
Percentage (%) |
|---|---|---|---|---|
| Argentina (ABARG) | 498,058 | 195 | 3 | 1.54% |
| Australia (Virtual ABF Clubs) | 3,688,690 | 1,803 | 22 | 1.22% |
| Belgium (RBBF) | 204,718 | 63 | 4 | 6.35% |
| Chile | 87,059 | 30 | 2 | 6.67% |
| Cyprus | 19,219 | 3 | 0 | 0.00% |
| Denmark (Virtual DBF clubs) | 353,599 | 119 | 1 | 0.84% |
| England (EBU Games) | 1,653,914 | 693 | 10 | 1.44% |
| England (Virtual EBU Clubs) | 9,384,837 | 5,548 | 53 | 0.96% |
| France (FFB) | 2,544,261 | 876 | 87 | 9.93% |
| Germany (DBV) | 3,876,755 | 1,533 | 61 | 3.98% |
| IBEX (IBEX) | 392,037 | 200 | 3 | 1.50% |
| India (BFI) | 2,966,486 | 1,096 | 35 | 3.19% |
| Ireland (CBAI) | 7,129,395 | 4,098 | 39 | 0.95% |
| Israel (IBF) | 3,675,615 | 1,663 | 47 | 2.83% |
| Italy (FIGB) | 1,438,670 | 594 | 42 | 7.07% |
| Italian clubs | 16,914 | 2 | 0 | 0.00% |
| Kenya (KBA) | 42,687 | 3 | 0 | 0.00% |
| North Ireland (NIBU) | 808,468 | 434 | 3 | 0.69% |
| Pakistan | 20,847 | 8 | 0 | 0.00% |
| Poland | 82,758 | 38 | 0 | 0.00% |
| Romania (FRB) | 33,874 | 1 | 0 | 0.00% |
| Scotland (SBU) | 1,805,785 | 1,082 | 4 | 0.37% |
| South Africa (SABF) | 1,981,974 | 1,081 | 7 | 0.65% |
| Slovenia | 71,662 | 33 | 0 | 0.00% |
| Spain (AEB) | 762,251 | 294 | 10 | 3.40% |
| Sweden (SBB) | 208,921 | 96 | 3 | 3.12% |
| Switzerland (FSB) | 37,046 | 1 | 1 | 100.00% |
| Turkey (TBRIC) | 371,029 | 113 | 1 | 0.88% |
| US (ABA) | 1,298,386 | 494 | 2 | 0.40% |
| US (ACBL) | 65,985,648 | 28,292 | 551 | 1.95% |
| US (VACB) | 59,487,817 | 31,626 | 308 | 0.97% |
| Totals: | 170,929,380 | 82,112 | 1,299 | 1.58% |
I do not track who has been convicted in the different NBOs.
Data is updated daily.
An example is ACBL. This is a list of players they have convicted, or have resigned and where they appear (as of October 9, 2021) on this list:
Rank:Player_1,Player_2
80:RICKNY72,TONY101010
100:KIM357,RAY4157
117:LN,RKK
123:JMBRPLYR,ROXANNSWEN
163:505JERRY,KEN4839
199:SAMZEINE,ZAK10
322:TOBINESS,CHARTMAN
477:GENYA77,TEASER_IQ
545:LEILA19,TUMAN46
566:DOBBINAZ,LADYGIRL
756:SOLOWAYGUY,SWICKBRIDG
Only seven of eleven of these pairs meet the higher threshold I use for the automated tools. At least four of them are outside this threshold, showing that there are likely more cheating pairs than in the list above.
Some smaller NBOs have fewer tables. This is the same data but with a threshold of 500 total boards. Remember this is an estimate; the estimate is not as accurate with fewer boards. I generally only use pairs with 1,000 boards but smaller NBOs have the ability to stop cheating earlier.
| Country | Number of boards |
Pairs with more than 500 boards |
Estimated number of cheating pairs |
Percentage (%) |
|---|---|---|---|---|
| Argentina (ABARG) | 498,058 | 379 | 9 | 2.37% |
| Australia (Virtual ABF Clubs) | 3,688,690 | 3,341 | 65 | 1.95% |
| Belgium (RBBF) | 204,718 | 166 | 9 | 5.42% |
| Chile | 87,059 | 81 | 5 | 6.17% |
| Cyprus | 19,219 | 25 | 0 | 0.00% |
| Denmark (Virtual DBF clubs) | 353,599 | 279 | 7 | 2.51% |
| England (Virtual EBU Clubs) | 9,384,837 | 9,696 | 154 | 1.59% |
| France (FFB) | 2,544,261 | 1,975 | 200 | 10.13% |
| Germany (DBV) | 3,876,755 | 3,148 | 115 | 3.65% |
| IBEX (IBEX) | 392,037 | 378 | 13 | 3.44% |
| India (BFI) | 2,966,486 | 2,088 | 69 | 3.30% |
| Indonesia (IBA) | 22,502 | 5 | 0 | 0.00% |
| Ireland (CBAI) | 7,129,395 | 7,084 | 101 | 1.43% |
| Israel (IBF) | 3,675,615 | 2,995 | 92 | 3.07% |
| Italy (FIGB) | 1,438,670 | 1,177 | 85 | 7.22% |
| Italian clubs | 16,914 | 6 | 0 | 0.00% |
| Kenya (KBA) | 42,687 | 28 | 1 | 3.57% |
| North Ireland (NIBU) | 808,468 | 712 | 10 | 1.40% |
| Pakistan | 20,847 | 20 | 1 | 5.00% |
| Poland | 82,758 | 65 | 0 | 0.00% |
| Portugal (FPB) | 3,251 | 2 | 0 | 0.00% |
| Romania (FRB) | 33,874 | 3 | 1 | 33.33% |
| Scotland (SBU) | 1,805,785 | 1,716 | 10 | 0.58% |
| South Africa (SABF) | 1,981,974 | 1,658 | 26 | 1.57% |
| Slovenia | 71,662 | 55 | 1 | 1.82% |
| Spain (AEB) | 762,251 | 641 | 22 | 3.43% |
| Sweden (SBB) | 208,921 | 183 | 5 | 2.73% |
| Switzerland (FSB) | 37,046 | 19 | 3 | 15.79% |
| Turkey (TBRIC) | 371,029 | 329 | 17 | 5.17% |
| US (ABA) | 1,298,386 | 920 | 8 | 0.87% |
| US (ACBL) | 65,985,648 | 44,481 | 1,094 | 2.46% |
| US (VACB) | 59,487,817 | 50,982 | 851 | 1.67% |
| Wales (WBU) | 14,851 | 1 | 0 | 0.00% |
| Totals: | 169,316,070 | 134,638 | 2,974 | 2.21% |