Official NHA Assessment

Race 6: ZIMBABWE GUINEAS (Grade 3) (For all 3 year olds/ 1st leg Triple Crown)

Back to Race
Line Horse
Follow The Band
Reference for assessment
Exact Matches
1 / 4
Calculated = Official
Close Matches
1 / 4
Within 2 points
Significant Diffs
2 / 4
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Buster Barnes        2    58.0    1    0.00     0.0   86    56           56    -30
2    Trust Me             2    55.5    2    5.00     0.0   50    51           51    +1
3    Follow The Band      2    58.0    3    5.75     0.0   56    56           56    +0
4    Pair Of Aces         4    58.0    4    8.75     2.0   55    52           52    -3
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Buster Barnes 86 101 56 +45 0.0 -
2 Trust Me 50 51 51 ✓ Match 0.0 -
3 Follow The Band Line 56 53 56 -3 0.0
4 Pair Of Aces 55 39 52 -13 2.0 -
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