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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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 10 39 3.9 5 3 7 12.82% 38.46% $43,775 $1,122 $4,378 0 0
Jon Phil Zimmerman 9 27 3 4 5 2 14.81% 40.74% $42,671 $1,580 $4,741 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 13 71 5.46 4 11 11 5.63% 36.62% $81,242 $1,144 $6,249 0 0
Jon Phil Zimmerman 7 23 3.29 5 3 1 21.74% 39.13% $54,343 $2,363 $7,763 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 16 71 4.44 10 6 7 14.08% 32.39% $148,511 $2,092 $9,282 0 0
Jon Phil Zimmerman 4 26 6.5 5 2 6 19.23% 50% $63,656 $2,448 $15,914 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 18 58 3.22 8 5 7 13.79% 34.48% $149,132 $2,571 $8,285 0 0
Jon Phil Zimmerman 4 18 4.5 0 4 9 0% 72.22% $35,975 $1,999 $8,994 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 10 47 4.7 4 3 7 8.51% 29.79% $77,751 $1,654 $7,775 0 0
Jon Phil Zimmerman 5 12 2.4 0 2 0 0% 16.67% $8,245 $687 $1,649 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 19 109 5.74 15 15 12 13.76% 38.53% $210,642 $1,932 $11,086 0 0
Jon Phil Zimmerman 4 9 2.25 2 1 2 22.22% 55.56% $12,787 $1,421 $3,197 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 22 98 4.45 14 15 10 14.29% 39.8% $185,893 $1,897 $8,450 0 0
Jon Phil Zimmerman 2 4 2 0 0 0 0% 0% $438 $110 $219 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 18 101 5.61 12 15 10 11.88% 36.63% $157,523 $1,560 $8,751 0 0
Jon Phil Zimmerman 1 3 3 2 0 0 66.67% 66.67% $8,308 $2,769 $8,308 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 18 90 5 2 13 12 2.22% 30% $91,924 $1,021 $5,107 0 0
Jon Phil Zimmerman 5 13 2.6 0 1 2 0% 23.08% $7,670 $590 $1,534 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 24 102 4.25 6 19 17 5.88% 41.18% $190,805 $1,871 $7,950 0 0
Jon Phil Zimmerman 2 13 6.5 3 0 2 23.08% 38.46% $17,580 $1,352 $8,790 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 33 146 4.42 12 16 23 8.22% 34.93% $253,313 $1,735 $7,676 0 0
Jon Phil Zimmerman 5 18 3.6 2 2 0 11.11% 22.22% $11,777 $654 $2,355 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 29 157 5.41 16 26 19 10.19% 38.85% $274,600 $1,749 $9,469 0 0
Jon Phil Zimmerman 10 45 4.5 6 13 3 13.33% 48.89% $42,035 $934 $4,204 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 44 176 4 23 23 29 13.07% 42.61% $291,807 $1,658 $6,632 0 0
Jon Phil Zimmerman 10 50 5 9 6 6 18% 42% $60,521 $1,210 $6,052 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 29 137 4.72 16 14 21 11.68% 37.23% $159,338 $1,163 $5,494 0 0
Jon Phil Zimmerman 13 45 3.46 5 5 6 11.11% 35.56% $28,066 $624 $2,159 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 38 195 5.13 22 28 23 11.28% 37.44% $229,619 $1,178 $6,043 0 0
Jon Phil Zimmerman 16 92 5.75 15 8 7 16.3% 32.61% $64,865 $705 $4,054 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 37 222 6 37 28 39 16.67% 46.85% $338,281 $1,524 $9,143 0 0
Jon Phil Zimmerman 17 74 4.35 13 7 10 17.57% 40.54% $87,716 $1,185 $5,160 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 39 185 4.74 24 22 27 12.97% 39.46% $225,068 $1,217 $5,771 0 0
Jon Phil Zimmerman 19 78 4.11 10 9 8 12.82% 34.62% $56,751 $728 $2,987 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 33 196 5.94 27 45 38 13.78% 56.12% $329,360 $1,680 $9,981 0 0
Jon Phil Zimmerman 28 132 4.71 11 13 17 8.33% 31.06% $92,755 $703 $3,313 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 30 130 4.33 18 15 12 13.85% 34.62% $254,107 $1,955 $8,470 0 0
Jon Phil Zimmerman 27 82 3.04 12 10 6 14.63% 34.15% $65,225 $795 $2,416 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 31 166 5.35 22 20 21 13.25% 37.95% $211,593 $1,275 $6,826 0 2
Jon Phil Zimmerman 43 158 3.67 44 15 10 27.85% 43.67% $186,883 $1,183 $4,346 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 25 126 5.04 16 32 7 12.7% 43.65% $179,680 $1,426 $7,187 0 0
Jon Phil Zimmerman 43 215 5 35 35 38 16.28% 50.23% $203,984 $949 $4,744 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 14 85 6.07 8 6 11 9.41% 29.41% $61,909 $728 $4,422 0 0
Jon Phil Zimmerman 48 209 4.35 34 26 35 16.27% 45.45% $205,760 $984 $4,287 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 23 100 4.35 9 11 11 9% 31% $156,578 $1,566 $6,808 0 0
Jon Phil Zimmerman 41 218 5.32 38 36 35 17.43% 50% $224,964 $1,032 $5,487 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 30 179 5.97 18 17 25 10.06% 33.52% $213,073 $1,190 $7,102 0 0
Jon Phil Zimmerman 25 111 4.44 12 11 16 10.81% 35.14% $94,046 $847 $3,762 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 18 111 6.17 9 19 14 8.11% 37.84% $158,827 $1,431 $8,824 0 0
Jon Phil Zimmerman 21 83 3.95 8 2 10 9.64% 24.1% $31,430 $379 $1,497 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 19 92 4.84 14 12 7 15.22% 35.87% $89,734 $975 $4,723 0 0
Jon Phil Zimmerman 21 80 3.81 4 7 9 5% 25% $32,347 $404 $1,540 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 25 113 4.52 8 14 14 7.08% 31.86% $218,832 $1,937 $8,753 0 1
Jon Phil Zimmerman 25 90 3.6 8 6 14 8.89% 31.11% $32,752 $364 $1,310 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 22 140 6.36 19 15 18 13.57% 37.14% $258,242 $1,845 $11,738 0 1
Jon Phil Zimmerman 19 67 3.53 2 8 10 2.99% 29.85% $14,223 $212 $749 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 17 74 4.35 9 9 3 12.16% 28.38% $208,541 $2,818 $12,267 0 3
Jon Phil Zimmerman 21 91 4.33 10 7 14 10.99% 34.07% $61,753 $679 $2,941 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 26 180 6.92 31 31 18 17.22% 44.44% $415,216 $2,307 $15,970 0 3
Jon Phil Zimmerman 22 83 3.77 9 12 7 10.84% 33.73% $60,162 $725 $2,735 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 19 109 5.74 26 22 11 23.85% 54.13% $152,676 $1,401 $8,036 0 1
Jon Phil Zimmerman 25 119 4.76 23 20 14 19.33% 47.9% $119,219 $1,002 $4,769 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 27 122 4.52 20 20 10 16.39% 40.98% $122,345 $1,003 $4,531 0 0
Jon Phil Zimmerman 29 154 5.31 19 18 20 12.34% 37.01% $96,495 $627 $3,327 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 32 161 5.03 14 23 13 8.7% 31.06% $140,631 $873 $4,395 0 0
Jon Phil Zimmerman 24 126 5.25 15 13 16 11.9% 34.92% $79,590 $632 $3,316 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
2025 National Trainer Avg. 4 13.53% 40.55% $5,513 $22,031
Larry D. Donlin 46 298 6.48 40 37 28 13.42% 35.23% $182,479 $612 $3,967 0 0
Jon Phil Zimmerman 30 100 3.33 9 8 9 9% 26% $40,163 $402 $1,339 0 0