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
Armando Quintanilla, Jr. 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 7 14 2 1 0 3 7.14% 28.57% $35,948 $2,568 $5,135 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
Armando Quintanilla, Jr. 2 4 2 0 0 1 0% 25% $12,340 $3,085 $6,170 0 0
Rodney L. Nielsen 2 5 2.5 0 0 3 0% 60% $2,790 $558 $1,395 0 0
Michael B. Campbell 10 49 4.9 11 3 7 22.45% 42.86% $433,659 $8,850 $43,366 1 3

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
Armando Quintanilla, Jr. 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Rodney L. Nielsen 2 10 5 0 1 0 0% 10% $3,440 $344 $1,720 0 0
Michael B. Campbell 9 53 5.89 9 10 5 16.98% 45.28% $377,359 $7,120 $41,929 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
Armando Quintanilla, Jr. 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Rodney L. Nielsen 1 5 5 1 0 1 20% 40% $5,928 $1,186 $5,928 0 0
Michael B. Campbell 9 48 5.33 6 4 4 12.5% 29.17% $210,311 $4,381 $23,368 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
Armando Quintanilla, Jr. 3 17 5.67 0 3 1 0% 23.53% $7,718 $454 $2,573 0 0
Rodney L. Nielsen 2 2 1 0 0 1 0% 50% $300 $150 $150 0 0
Michael B. Campbell 11 54 4.91 10 8 9 18.52% 50% $267,643 $4,956 $24,331 0 1

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
Armando Quintanilla, Jr. 2 2 1 0 1 1 0% 100% $3,400 $1,700 $1,700 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 12 67 5.58 6 11 5 8.96% 32.84% $209,851 $3,132 $17,488 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
Armando Quintanilla, Jr. 3 6 2 1 1 1 16.67% 50% $10,754 $1,792 $3,585 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 13 83 6.38 11 11 13 13.25% 42.17% $282,638 $3,405 $21,741 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
Armando Quintanilla, Jr. 3 14 4.67 1 3 2 7.14% 42.86% $14,342 $1,024 $4,781 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 14 79 5.64 8 8 7 10.13% 29.11% $219,363 $2,777 $15,669 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
Armando Quintanilla, Jr. 4 8 2 0 1 1 0% 25% $2,444 $306 $611 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 18 86 4.78 6 11 15 6.98% 37.21% $219,966 $2,558 $12,220 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
Armando Quintanilla, Jr. 5 14 2.8 0 4 3 0% 50% $12,072 $862 $2,414 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 12 56 4.67 8 3 10 14.29% 37.5% $179,905 $3,213 $14,992 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
Armando Quintanilla, Jr. 17 50 2.94 4 9 4 8% 34% $65,758 $1,315 $3,868 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 11 67 6.09 7 15 8 10.45% 44.78% $241,087 $3,598 $21,917 0 2

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
Armando Quintanilla, Jr. 17 64 3.76 7 15 8 10.94% 46.88% $104,222 $1,628 $6,131 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 9 63 7 8 10 14 12.7% 50.79% $142,098 $2,256 $15,789 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
Armando Quintanilla, Jr. 10 18 1.8 0 2 1 0% 16.67% $8,600 $478 $860 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 7 61 8.71 3 7 14 4.92% 39.34% $87,381 $1,432 $12,483 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
Armando Quintanilla, Jr. 12 28 2.33 1 1 2 3.57% 14.29% $18,080 $646 $1,507 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 12 74 6.17 2 7 8 2.7% 22.97% $94,229 $1,273 $7,852 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
Armando Quintanilla, Jr. 16 41 2.56 5 3 2 12.2% 24.39% $78,951 $1,926 $4,934 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 16 116 7.25 7 14 12 6.03% 28.45% $111,865 $964 $6,992 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
Armando Quintanilla, Jr. 14 61 4.36 13 11 8 21.31% 52.46% $196,156 $3,216 $14,011 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 21 112 5.33 9 8 10 8.04% 24.11% $131,079 $1,170 $6,242 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
Armando Quintanilla, Jr. 12 47 3.92 5 9 6 10.64% 42.55% $129,303 $2,751 $10,775 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 28 193 6.89 21 21 28 10.88% 36.27% $442,111 $2,291 $15,790 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
Armando Quintanilla, Jr. 14 78 5.57 14 7 4 17.95% 32.05% $383,167 $4,912 $27,369 0 3
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 31 153 4.94 18 17 15 11.76% 32.68% $355,872 $2,326 $11,480 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
Armando Quintanilla, Jr. 12 40 3.33 9 1 6 22.5% 40% $133,305 $3,333 $11,109 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 35 137 3.91 24 17 19 17.52% 43.8% $761,579 $5,559 $21,759 2 6

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
Armando Quintanilla, Jr. 9 37 4.11 5 7 6 13.51% 48.65% $114,308 $3,089 $12,701 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 19 102 5.37 18 10 14 17.65% 41.18% $362,054 $3,550 $19,055 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
Armando Quintanilla, Jr. 10 33 3.3 6 5 3 18.18% 42.42% $74,178 $2,248 $7,418 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 17 96 5.65 15 18 14 15.63% 48.96% $280,987 $2,927 $16,529 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
Armando Quintanilla, Jr. 10 15 1.5 3 1 1 20% 33.33% $42,065 $2,804 $4,207 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 15 77 5.13 3 11 7 3.9% 27.27% $91,949 $1,194 $6,130 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
Armando Quintanilla, Jr. 4 4 1 0 0 0 0% 0% $166 $42 $42 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 15 91 6.07 7 11 19 7.69% 40.66% $171,570 $1,885 $11,438 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
Armando Quintanilla, Jr. 12 28 2.33 1 2 2 3.57% 17.86% $12,195 $436 $1,016 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 21 120 5.71 7 16 19 5.83% 35% $186,820 $1,557 $8,896 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
Armando Quintanilla, Jr. 8 32 4 3 6 1 9.38% 31.25% $32,222 $1,007 $4,028 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 22 115 5.23 17 14 8 14.78% 33.91% $312,943 $2,721 $14,225 0 1

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
Armando Quintanilla, Jr. 12 49 4.08 10 5 5 20.41% 40.82% $72,912 $1,488 $6,076 0 1
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 28 150 5.36 15 23 16 10% 36% $341,277 $2,275 $12,188 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
Armando Quintanilla, Jr. 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 30 152 5.07 19 17 25 12.5% 40.13% $382,202 $2,514 $12,740 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
Armando Quintanilla, Jr. 1 2 2 0 1 0 0% 50% $744 $372 $744 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 29 177 6.1 16 36 26 9.04% 44.07% $338,484 $1,912 $11,672 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
Armando Quintanilla, Jr. 4 27 6.75 4 4 3 14.81% 40.74% $14,484 $536 $3,621 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 25 196 7.84 24 27 30 12.24% 41.33% $328,658 $1,677 $13,146 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
Armando Quintanilla, Jr. 2 5 2.5 1 1 0 20% 40% $2,073 $415 $1,037 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 24 152 6.33 20 20 17 13.16% 37.5% $359,950 $2,368 $14,998 0 1

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
Armando Quintanilla, Jr. 1 2 2 1 0 0 50% 50% $1,525 $763 $1,525 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 29 192 6.62 23 25 25 11.98% 38.02% $370,436 $1,929 $12,774 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
Armando Quintanilla, Jr. 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 27 149 5.52 20 21 22 13.42% 42.28% $282,974 $1,899 $10,481 0 2

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
Armando Quintanilla, Jr. 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 29 159 5.48 11 16 21 6.92% 30.19% $151,374 $952 $5,220 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
Armando Quintanilla, Jr. 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Rodney L. Nielsen 0 0 0 0 0 0 0% 0% $0 $0 $0 0 0
Michael B. Campbell 33 209 6.33 31 16 33 14.83% 38.28% $352,517 $1,687 $10,682 0 0