Rating history of Joachim Verhelst

Rating Graph

Changes on 19/04/2026:

Old rank: ???(????)
New rank: 7kyu(-676)
Games:
Sidi Mohamed Ed-Daoudi(-632): Tournament(*1.2) handicap=0(*1.00) strengthdiff= -18 adjusteddiff= -18 Strength=-650=>Afactor= 135 Con= 51 Result(Expected=0.467,Achieved=0.0,Gain=-0.467) ratingdelta=-28.6
Ghislaine Weissgerber(-945): Tournament(*1.2) handicap=0(*1.00) strengthdiff= 295 adjusteddiff= 295 Strength=-650=>Afactor= 135 Con= 51 Result(Expected=0.885,Achieved=1.0,Gain=0.115) ratingdelta= 7.0
Daniel French(-420): Tournament(*1.2) handicap=0(*1.00) strengthdiff=-230 adjusteddiff=-230 Strength=-650=>Afactor= 135 Con= 51 Result(Expected=0.154,Achieved=0.0,Gain=-0.154) ratingdelta= -9.4
Pierre Loic Baratier(-1020): Tournament(*1.2) handicap=0(*1.00) strengthdiff= 370 adjusteddiff= 370 Strength=-650=>Afactor= 135 Con= 51 Result(Expected=0.925,Achieved=1.0,Gain=0.075) ratingdelta= 4.6

Changes on 31/05/2026:

Old rank: 7kyu(-676)
New rank: 7kyu(-678)
Games:
VANHAERENALEXANDRE(-450): Tournament(*1.2) handicap=0(*1.00) strengthdiff=-226 adjusteddiff=-226 Strength=-676=>Afactor= 136 Con= 52 Result(Expected=0.160,Achieved=0.0,Gain=-0.160) ratingdelta=-10.0
Costin Varlan(-950): Tournament(*1.2) handicap=0(*1.00) strengthdiff= 274 adjusteddiff= 274 Strength=-676=>Afactor= 136 Con= 52 Result(Expected=0.868,Achieved=1.0,Gain=0.132) ratingdelta= 8.3