MF Values For Different Tournaments

None of the data in this segment is related to cheating.

Bermuda Bowl MF Values - cheating detection

It is possible to measure the 'quality' of Bridge. Also a polite way of saying you can measure the level of cheating. See Chapter 13 at selections.html.

The following table shows the Bermuda Bowl MF values for 1955 to present. The MF value works best with a large number of boards. For individual tournaments before 1995 the values do not mean much but the average for earlier years shows a low number.

The value jumped significantly in 2015 when all players became aware that players could be detected cheating through video. This was the cleanest Bermuda Bowl on record ... until 2019. I'd like to think that the book had something to do with this. The top pairs know that they can be detected cheating using statistics.

Year # Boards MF Value
1955 4400.9519
1957 4451.1724
1958 3260.9385
1959 3101.0294
1962 4151.1684
1967 2560.9800
1973 2551.0208
1974 1910.9111
1975 1921.2500
1977 1911.1714
1979 1881.0222
1981 1861.2500
1983 3511.5185
1987 2780.9153
1991 1350.8056
1995 3192.0000
19971,2021.1933
2000 7001.3281
2001 2551.6136
20051,8691.3958
20072,6981.2012
20092,9311.1738
20113,5901.1813
20134,1821.1127
20153,3501.4212
20174,3041.3022
20193,7601.4935

The lower the MF value, the more likely there is cheating at the event. The higher the MF value, the less likely there is cheating at the event. Note the big jumps in 2015 and 2019.

Venice Cup Bowl MF Values - cheating detection

It is possible to measure the 'quality' of Bridge. Also a polite way of saying you can measure the level of cheating. See Chapter 13 at selections.html.

The following table shows the Venice Cup MF values for 1955 to present. The MF value works best with a large number of boards. For individual tournaments before 2007 the values do not mean much but the average for earlier years shows a low number.

The value jumped significantly in 2015 when all players became aware that players could be detected cheating through video. This was the cleanest Venice Cup on record ... until 2019. I'd like to think that the book had something to do with this. The top pairs know that they can be detected cheating using statistics.

Year # Boards MF Value
1997 1570.8409
2000 2561.1356
2005 2861.2063
2007 1,0391.1931
2009 1,5891.1714
2011 1,5381.3772
2013 1,8371.0911
2015 1,6201.4839
2017 2,7091.3636
2019 3,3371.5179

The lower the MF value, the more likely there is cheating at the event. The higher the MF value, the less likely there is cheating at the event. Note the big jumps in 2015 and 2019.

d'Orsi Trophy (Senior Bowl) MF Values - cheating detection

It is possible to measure the 'quality' of Bridge. Also a polite way of saying you can measure the level of cheating. See Chapter 13 at selections.html.

The following table shows the Senior Bowl MF values for 2005 to present. The MF value works best with a large number of boards. For individual tournaments before 2015 the values do not mean much but the average for earlier years shows a low number.

The value jumped significantly in 2015 when all players became aware that players could be detected cheating through video.

Year # Boards MF Value
2005 7621.1166
2007 6631.3761
2009 1,0571.1354
2011 1,3111.2112
2013 6240.8986
2015 9811.3333
2017 1,8151.3179
2019 3,1401.3112

The lower the MF value, the more likely there is cheating at the event. The higher the MF value, the less likely there is cheating at the event.

Both the Venice Cup and Bermuda Bowl showed a big increase in the MF values, but the MF value for the Senior Bowl did not. Hmm. Wonder why. They played the same boards. OK.... you are smart, I hope I really don't have to spell it out for you...

Yup. The software tells me who the most likely suspects are but I can't mention their names. I don't publish the cheating detection data for events but at least one pair triggered an alert. Does it help if I tell you that I gave WBF a list of suspect pairs for the Senior Bowl before the event started and all the pairs I mentioned triggered alerts in the cheating detection software event? Amazing how that can happen.

After the WBF upload the videos to Youtube, I will see if the quality of video is good enough to see if there is anything suspicious on videos.

Mixed Teams MF Values - cheating detection (show/hide)

It is possible to measure the 'quality' of Bridge. Also a polite way of saying you can measure the level of cheating. See Chapter 13 at selections.html.

The following table shows the Mixed Teams MF values. The MF value works best with a large number of boards. This is the first time this event has been held so there is no history.

Year # Boards MF Value
20192,7991.4058

The lower the MF value, the more likely there is cheating at the event. The higher the MF value, the less likely there is cheating at the event.

Compare this value to the Bermuda Bowl (3,760 boards - 1.49), Venice Cup (3,337 boards - 1.52), Senior Bowl (3,140 boards - 1.31), Mixed Teams (2,799 boards - 1.41)

The higher the value the better the quality of bridge.