Official NHA Assessment

Race 4: PLAY SOCCER 6, 10 AND 13 MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Quantifier
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
0 / 12
Within 2 points
Significant Diffs
10 / 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    Quantifier           2    60.0    1    0.00     0.0   78    78           78    +0
2    Sword Of Mercy       3    60.0    2    0.50     3.5   71    78           78    +7
3    Manz Knight          6    60.0    3    2.50     0.0   59    82           82    +23
4    Puerto Plata (ARG)   3    60.0    4    3.50     3.5   74    74           74    +0
5    Wonderworld          2    60.0    5    6.00     0.0   69    78           78    +9
6    Us Open              3    60.0    6    8.25     3.5   71    71           71    +0
7    Volte Face           3    60.0    7    13.00    3.5   55    71           71    +16
8    Blyde River          4    60.0    8    14.25    1.5   50    75           75    +25
9    Desert Fox           3    60.0    9    17.25    3.5   70    71           71    +1
10   Royal Raphael        3    60.0    10   34.25    3.5   59    71           71    +12
11   Night Vibe           4    60.0    11   39.25    1.5   -     75           75    +75
99   Air Fusion           3    60.0    99   0.00     3.5   -     71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Quantifier Line 78 74 78 -4 0.0
2 Sword Of Mercy 71 65 78 -13 3.5 -
3 Manz Knight 59 60 82 -22 0.0 -
4 Puerto Plata (ARG) 74 68 74 -6 3.5 -
5 Wonderworld 69 64 78 -14 0.0 -
6 Us Open 71 60 71 -11 3.5 -
7 Volte Face 55 66 71 -5 3.5 -
8 Blyde River 50 48 75 -27 1.5 -
9 Desert Fox 70 57 71 -14 3.5 -
10 Royal Raphael 59 54 71 -17 3.5 -
11 Night Vibe - 12 75 -63 1.5 -
99 Air Fusion - 55 71 -16 3.5 -
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