Official NHA Assessment

Race 2: TAKE A BET WINA NUMBA NUMBA MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Duellona
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
6 / 10
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    Exhale               3    60.0    1    0.00     8.0   64    68           68    +4
2    Crimson Forest       3    54.0    2    1.10     8.0   63    62           62    -1
3    Twenty Drachma's     4    57.0    3    1.50     4.5   82    74           74    -8
4    Taxhaven             4    57.0    4    2.75     4.5   69    72           72    +3
5    Play With Fire       4    53.5    5    3.50     4.5   70    65           65    -5
6    Duellona             2    52.0    6    4.50     0.0   69    69           69    +0
7    Karoo Gold           3    57.0    7    6.75     8.0   -     62           62    +62
8    Impression           3    56.5    8    8.00     8.0   51    61           61    +10
9    District Twelve      3    57.0    9    8.05     8.0   75    62           65    -10
99   Gamer                4    57.0    99   0.00     4.5   -     69           69    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Exhale 64 66 68 -2 8.0 -
2 Crimson Forest 63 71 62 +9 8.0 -
3 Twenty Drachma's 82 83 74 +9 4.5 -
4 Taxhaven 69 96 72 +24 4.5 -
5 Play With Fire 70 79 65 +14 4.5 -
6 Duellona Line 69 58 69 -11 0.0
7 Karoo Gold - 67 62 +5 8.0 -
8 Impression 51 51 61 -10 8.0 -
9 District Twelve 75 70 65 +5 8.0 -
99 Gamer - 65 69 -4 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