Official NHA Assessment

Race 5: BETONTAB.CO.ZA MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Queen Britanna
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
2 / 13
Within 2 points
Significant Diffs
8 / 13
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Wild Forever         3    58.5    1    0.00     4.5   59    51           51    -8
2    Maith An Cailin      2    60.0    2    1.00     0.0   60    69           69    +9
3    Queen Britanna       2    57.5    3    1.50     0.0   63    63           63    +0
4    Broadlands           3    60.0    4    2.25     4.5   69    59           59    -10
5    Coffee In Brazil     3    60.0    5    5.00     4.5   50    54           54    +4
6    Miss Christmas       3    60.0    6    6.00     4.5   64    54           54    -10
7    A Touch Of Sugar     2    60.0    7    7.00     0.0   66    63           63    -3
8    Brazilian Storm      4    60.0    8    7.10     2.0   59    59           59    +0
9    Antananarivo         4    60.0    9    8.50     2.0   50    59           59    +9
10   Spring Of Elixir     3    57.5    10   9.75     4.5   -     49           49    +49
11   Dusky Rose           3    60.0    11   99.99    4.5   -     54           54    +54
99   Island Beauty        3    60.0    99   0.00     4.5   -     54           54    +0
99   Turnthebeataround    3    60.0    99   0.00     4.5   -     54           54    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Wild Forever 59 70 51 +19 4.5 -
2 Maith An Cailin 60 68 69 -1 0.0 -
3 Queen Britanna Line 63 57 63 -6 0.0
4 Broadlands 69 69 59 +10 4.5 -
5 Coffee In Brazil 50 49 54 -5 4.5 -
6 Miss Christmas 64 64 54 +10 4.5 -
7 A Touch Of Sugar 66 58 63 -5 0.0 -
8 Brazilian Storm 59 42 59 -17 2.0 -
9 Antananarivo 50 57 59 -2 2.0 -
10 Spring Of Elixir - 55 49 +6 4.5 -
11 Dusky Rose - 58 54 +4 4.5 -
99 Island Beauty - 63 54 +9 4.5 -
99 Turnthebeataround - 64 54 +10 4.5 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points