Official NHA Assessment

Race 5: BETWAY FM 64 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Have A Party
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
6 / 7
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    Ideal Future         6    58.0    1    0.00     0.0   65    77           65    +0
2    Have A Party         3    55.5    2    3.75     9.5   55    55           55    +0
3    Silky Jet            4    60.5    3    5.00     6.0   67    70           70    +3
4    Play With Fire       4    58.0    4    7.25     6.0   70    65           65    -5
5    Eye Catching         4    52.0    5    10.50    6.0   48    53           53    +5
6    Summerland           5    52.0    6    18.50    0.0   47    65           65    +18
7    Angel's Wish         6    61.0    7    31.50    0.0   66    83           83    +17
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ideal Future 65 72 65 +7 0.0 -
2 Have A Party Line 55 64 55 +9 9.5
3 Silky Jet 67 61 70 -9 6.0 -
4 Play With Fire 70 79 65 +14 6.0 -
5 Eye Catching 48 48 53 -5 6.0 -
6 Summerland 47 45 65 -20 0.0 -
7 Angel's Wish 66 54 83 -29 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