Skip to:

Trainer Comparison

Statistics by Year:
Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 2 3 1.5 0 0 1 0% 33.33% $4,390 $1,463 $2,195 0 0
Gregorio P. Rivera 14 31 2.21 3 4 4 9.68% 35.48% $43,096 $1,390 $3,078 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 3 28 9.33 2 1 2 7.14% 17.86% $37,610 $1,343 $12,537 0 0
Gregorio P. Rivera 16 63 3.94 12 12 5 19.05% 46.03% $97,111 $1,541 $6,069 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 4 31 7.75 1 4 2 3.23% 22.58% $36,540 $1,179 $9,135 0 0
Gregorio P. Rivera 17 78 4.59 11 13 16 14.1% 51.28% $87,177 $1,118 $5,128 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 8 31 3.88 2 1 0 6.45% 9.68% $45,990 $1,484 $5,749 0 0
Gregorio P. Rivera 13 63 4.85 10 9 19 15.87% 60.32% $85,730 $1,361 $6,595 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 8 38 4.75 2 3 3 5.26% 21.05% $51,450 $1,354 $6,431 0 0
Gregorio P. Rivera 12 56 4.67 3 12 3 5.36% 32.14% $39,366 $703 $3,281 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 3 21 7 2 1 1 9.52% 19.05% $33,857 $1,612 $11,286 0 0
Gregorio P. Rivera 17 79 4.65 10 10 21 12.66% 51.9% $106,653 $1,350 $6,274 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 19 72 3.79 5 2 6 6.94% 18.06% $122,970 $1,708 $6,472 0 0
Gregorio P. Rivera 19 75 3.95 13 15 14 17.33% 56% $143,360 $1,911 $7,545 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 7 53 7.57 4 8 6 7.55% 33.96% $86,025 $1,623 $12,289 0 0
Gregorio P. Rivera 18 89 4.94 11 10 13 12.36% 38.2% $88,687 $996 $4,927 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 2 20 10 0 2 0 0% 10% $11,250 $563 $5,625 0 0
Gregorio P. Rivera 12 65 5.42 7 11 14 10.77% 49.23% $75,332 $1,159 $6,278 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 5 30 6 0 2 3 0% 16.67% $20,540 $685 $4,108 0 0
Gregorio P. Rivera 14 67 4.79 9 10 11 13.43% 44.78% $69,688 $1,040 $4,978 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 5 14 2.8 0 3 0 0% 21.43% $12,304 $879 $2,461 0 0
Gregorio P. Rivera 9 33 3.67 9 3 2 27.27% 42.42% $45,826 $1,389 $5,092 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 1 12 12 0 1 0 0% 8.33% $4,541 $378 $4,541 0 0
Gregorio P. Rivera 6 30 5 2 4 7 6.67% 43.33% $19,089 $636 $3,182 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 3 15 5 1 1 1 6.67% 20% $10,730 $715 $3,577 0 0
Gregorio P. Rivera 7 23 3.29 2 5 5 8.7% 52.17% $15,931 $693 $2,276 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 8 50 6.25 3 3 6 6% 24% $39,878 $798 $4,985 0 0
Gregorio P. Rivera 7 24 3.43 2 1 1 8.33% 16.67% $8,321 $347 $1,189 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 4 20 5 2 0 3 10% 25% $15,851 $793 $3,963 0 0
Gregorio P. Rivera 7 28 4 3 2 2 10.71% 25% $12,062 $431 $1,723 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 7 51 7.29 1 0 2 1.96% 5.88% $15,426 $302 $2,204 0 0
Gregorio P. Rivera 9 43 4.78 2 0 2 4.65% 9.3% $9,824 $228 $1,092 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 6 60 10 2 8 5 3.33% 25% $32,850 $548 $5,475 0 0
Gregorio P. Rivera 6 33 5.5 4 3 3 12.12% 30.3% $18,152 $550 $3,025 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 7 73 10.43 5 4 9 6.85% 24.66% $63,356 $868 $9,051 0 0
Gregorio P. Rivera 11 56 5.09 0 4 4 0% 14.29% $9,529 $170 $866 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 6 60 10 2 9 8 3.33% 31.67% $51,750 $863 $8,625 0 0
Gregorio P. Rivera 10 49 4.9 5 2 6 10.2% 26.53% $26,934 $550 $2,693 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 4 52 13 4 6 8 7.69% 34.62% $64,385 $1,238 $16,096 0 0
Gregorio P. Rivera 10 62 6.2 4 5 9 6.45% 29.03% $23,094 $372 $2,309 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 5 49 9.8 1 7 6 2.04% 28.57% $42,245 $862 $8,449 0 0
Gregorio P. Rivera 11 44 4 5 7 6 11.36% 40.91% $24,826 $564 $2,257 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 2 4 2 2 0 0 50% 50% $27,500 $6,875 $13,750 0 0
Gregorio P. Rivera 10 69 6.9 7 10 6 10.14% 33.33% $58,886 $853 $5,889 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Gregorio P. Rivera 20 82 4.1 6 5 5 7.32% 19.51% $55,281 $674 $2,764 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Gregorio P. Rivera 6 23 3.83 4 4 0 17.39% 34.78% $32,462 $1,411 $5,410 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Gregorio P. Rivera 4 16 4 2 0 3 12.5% 31.25% $32,265 $2,017 $8,066 0 0

Name Starters Starts Starts/
Starter 		1st 2nd 3rd Win % % 1st, 2nd or 3rd Earned Avg Earnings per Start Avg Earnings Per Starter Graded Stakes Win All Black-Type Win
2023 National Trainer Avg. 3.96 13.53% 40.55% $5,237 $20,757
Andy P. Williams 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Gregorio P. Rivera 4 11 2.75 1 0 0 9.09% 9.09% $13,044 $1,186 $3,261 0 0