Official NHA Assessment

Race 7: BOOK A TABLE CALL 011 681 1796 MR 76 HANDICAP (Open)

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Line Horse
Reny
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
8 / 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    Zuzan                3    57.0    1    0.00     5.0   70    66           70    +0
2    Reny                 2    60.0    2    1.25     0.0   86    86           86    +0
3    Future Pearl         2    57.5    3    1.50     0.0   81    80           80    -1
4    Stolen Thunder       3    56.5    4    2.25     5.0   69    68           68    -1
5    Sage King            3    59.5    5    3.25     5.0   75    73           73    -2
6    Brenden James        6    56.5    6    3.35     0.0   69    76           76    +7
7    Ryan's Dream         3    57.5    7    4.75     5.0   81    67           71    -10
8    Thambi               5    57.5    8    5.00     0.0   81    77           77    -4
9    The Chosen One       2    57.0    9    6.75     0.0   80    76           76    -4
10   Guru's Pride         5    58.5    10   14.00    0.0   73    79           79    +6
11   Dawn Of A New Era    4    58.5    11   14.50    2.5   76    74           74    -2
99   Sequoia              6    58.5    99   0.00     0.0   -     79           79    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Zuzan 70 98 70 +28 5.0 -
2 Reny Line 86 91 86 +5 0.0
3 Future Pearl 81 114 80 +34 0.0 -
4 Stolen Thunder 69 69 68 +1 5.0 -
5 Sage King 75 72 73 -1 5.0 -
6 Brenden James 69 98 76 +22 0.0 -
7 Ryan's Dream 81 65 71 -6 5.0 -
8 Thambi 81 55 77 -22 0.0 -
9 The Chosen One 80 52 76 -24 0.0 -
10 Guru's Pride 73 70 79 -9 0.0 -
11 Dawn Of A New Era 76 78 74 +4 2.5 -
99 Sequoia - 99 79 +20 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