Official NHA Assessment

Race 2: BETWAY MAIDEN PLATE (For Maidens. R15 000 Win Bonus ROA Members)

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Line Horse
Agamemnon
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
5 / 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    Kohana               2    58.0    1    0.00     0.0   81    71           71    -10
2    Oliver Twist         3    58.0    2    2.25     8.0   79    58           69    -10
3    Agamemnon            3    60.0    3    5.25     8.0   59    59           59    +0
4    Storm Boulevard      3    60.0    4    5.50     8.0   64    59           59    -5
5    Come On You Spurs    2    60.0    5    6.75     0.0   59    75           75    +16
6    Mayor Of Merrivale   2    60.0    6    9.00     0.0   61    75           75    +14
7    Mitredat             3    58.0    7    13.25    8.0   61    55           55    -6
8    Hiersdieding         2    58.0    8    20.00    0.0   50    71           71    +21
9    War Of Hearts        3    58.0    9    25.50    8.0   68    55           58    -10
10   Top Dollar           5    57.5    10   31.00    0.0   40    70           70    +30
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kohana 81 70 71 -1 0.0 -
2 Oliver Twist 79 68 69 -1 8.0 -
3 Agamemnon Line 59 58 59 -1 8.0
4 Storm Boulevard 64 64 59 +5 8.0 -
5 Come On You Spurs 59 51 75 -24 0.0 -
6 Mayor Of Merrivale 61 59 75 -16 0.0 -
7 Mitredat 61 51 55 -4 8.0 -
8 Hiersdieding 50 42 71 -29 0.0 -
9 War Of Hearts 68 52 58 -6 8.0 -
10 Top Dollar 40 42 70 -28 0.0 -
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