CLASS WEIGHTS IN 2020/21 HORSE RACES

The following table shows the class structure and associated class weights and levels used to produce performance results with '2021 horse races' data base.


Non-RBH classes in '2021 horse races' database
Class acronymDescriptionKg class weightClass levelFillies/mares
discount (kgs)
OPN QUOpen quality (Group)6673
OPN SPOpen sprint6563
OPN DSOpen distance6063
WEL NRWelter or transition to open class5953
F&M QUF&M quality (Group)5650
F&M NRF&M listed5540
3Y+ NR3yos+ open (no other restrictions)5753
3Y+ R23yos+ with 2 metrop wins (or equiv)5333
3Y+ R13yos+ with 1 metrop wins (or equiv)5223
3Y+ R03yos+ with 0 metrop wins (or equiv)4913
3YO QU3yo quality (Group)54-6142
3YO NR3yo open (no other restrictions)54-6132
3YO R23yo with 2 metrop wins (or equiv)45-4932
3YO R13yo with 1 metrop wins (or equiv)45-4922
3YO R03yo with 0 metrop wins (or equiv)40-4812
2YO QU2yo quality (Group)45-5520
2YO NR2yo open (no other restrictions)37-5020
2YO R22yo with 2 metrop wins (or equiv)37-5020
2YO R12yo with 1 metrop wins (or equiv)37-5020
2YO R02yo with 0 metrop wins (or equiv)37-5010
C6Class 64923
C5Class 54813
C4Class 44713
C3Class 34713
C2Class 24303
C1Class 14203
RBH classes in 2020/21 database
Class acronymDescriptionClass wt
in table
Kg class weightClass levelFillies/mares
discount (kgs)
RB1RBH-100 to 1150.6666-75.963
RB9RBH-96 to 990.66563.84-65.83553
RB95RBH-950.6763.6553
RB94RBH-940.67563.4553
RB93RBH-930.6863.2453
RB92RBH-920.68563.0253
RB91RBH-910.6962.7953
RB90RBH-900.69562.5553
RB89RBH-890.762.343
RB88RBH-880.70562.0443
RB87RBH-870.7161.7743
RB86RBH-860.71561.4943
RB8RBH-80 to 850.7257.6-61.243
RB79RBH-790.755.333
RB78RBH-780.6853.0433
RB77RBH-770.6550.0533
RB76RBH-760.6347.8833
RB75RBH-750.64533
RBHRBH-46 to 740.627.6-44.40 to 33

Notes to table:

  1. The class structure and class weights in this database are the same in the 2018/19/20, 2017, 2014/15 and 2012 databases.
  2. 'Kg class weights' associated with the RBH class acronyms shown are determined during analysis of races by multiplying the rating figures for the individual RBH classes (eg '75' for RB75 class) by the corresponding, necessarily relatively small, 'class weight in table' figure (the user's figure in My HorseRaces' Class Weight table).
  3. Similarly, class levels associated with these class acronyms starting with 'RB' are based solely on the associated RBH ratings (and not like other classes on the levels specified in the Class Weight table):