Official NHA Assessment

Race 2: TAB 4RACING APP MAIDEN PLATE (F & M) (Maiden(F&M) R15000 Win bonus ROA Members)

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Line Horse
Yaya Maria
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
11 / 12
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    Pomodoro Magic       5    60.0    1    0.00     0.0   -     76           6     +6
2    Yaya Maria           2    60.0    2    0.75     3.0   70    70           70    +0
3    Miss United States   3    60.0    3    2.00     4.5   40    67           67    +27
4    Reggies Girl         3    60.0    4    3.25     4.5   62    67           67    +5
5    Peronzada            3    60.0    5    3.75     4.5   58    67           67    +9
6    Celtic Vixen         4    60.0    6    5.25     5.0   -     66           66    +66
7    Afrodite             3    60.0    7    5.35     4.5   73    67           67    -6
8    Just Forever         3    60.0    8    5.85     4.5   -     67           67    +67
9    Gaetana              3    60.0    9    9.60     4.5   48    67           67    +19
10   Princess Louisa      3    60.0    10   11.35    4.5   54    67           67    +13
11   Spring Fever         2    60.0    11   16.60    3.0   60    70           70    +10
12   The Little Girl      3    60.0    12   21.10    4.5   -     67           67    +67
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pomodoro Magic - 53 6 +47 0.0 -
2 Yaya Maria Line 70 60 70 -10 3.0
3 Miss United States 40 52 67 -15 4.5 -
4 Reggies Girl 62 66 67 -1 4.5 -
5 Peronzada 58 56 67 -11 4.5 -
6 Celtic Vixen - 58 66 -8 5.0 -
7 Afrodite 73 56 67 -11 4.5 -
8 Just Forever - 49 67 -18 4.5 -
9 Gaetana 48 26 67 -41 4.5 -
10 Princess Louisa 54 54 67 -13 4.5 -
11 Spring Fever 60 53 70 -17 3.0 -
12 The Little Girl - 24 67 -43 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