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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 12 43 3.58 6 3 8 13.95% 39.53% $64,855 $1,508 $5,405 0 0
Mark W. Buehrer 28 98 3.5 24 17 13 24.49% 55.1% $341,428 $3,484 $12,194 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
Mark W. Buehrer 33 147 4.45 25 23 16 17.01% 43.54% $523,291 $3,560 $15,857 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
Mark W. Buehrer 28 123 4.39 12 23 22 9.76% 46.34% $307,357 $2,499 $10,977 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
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
Mark W. Buehrer 37 148 4 21 22 32 14.19% 50.68% $360,950 $2,439 $9,755 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
Mark W. Buehrer 33 151 4.58 20 29 35 13.25% 55.63% $345,207 $2,286 $10,461 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 20 74 3.7 6 10 3 8.11% 25.68% $100,491 $1,358 $5,025 0 0
Mark W. Buehrer 23 108 4.7 16 18 20 14.81% 50% $233,735 $2,164 $10,162 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 22 104 4.73 12 13 17 11.54% 40.38% $119,225 $1,146 $5,419 0 0
Mark W. Buehrer 26 119 4.58 9 8 15 7.56% 26.89% $100,564 $845 $3,868 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
Mark W. Buehrer 22 113 5.14 16 8 13 14.16% 32.74% $198,563 $1,757 $9,026 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
Mark W. Buehrer 24 110 4.58 7 16 17 6.36% 36.36% $128,303 $1,166 $5,346 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 18 101 5.61 12 15 10 11.88% 36.63% $157,523 $1,560 $8,751 0 0
Mark W. Buehrer 22 103 4.68 11 16 19 10.68% 44.66% $160,068 $1,554 $7,276 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
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
Mark W. Buehrer 31 131 4.23 14 29 17 10.69% 45.8% $289,758 $2,212 $9,347 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
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
Mark W. Buehrer 33 152 4.61 12 17 24 7.89% 34.87% $140,968 $927 $4,272 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
Mark W. Buehrer 37 185 5 22 27 27 11.89% 41.08% $235,692 $1,274 $6,370 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
Mark W. Buehrer 31 122 3.94 15 12 16 12.3% 35.25% $153,360 $1,257 $4,947 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
Mark W. Buehrer 29 129 4.45 10 21 13 7.75% 34.11% $157,702 $1,222 $5,438 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
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
Mark W. Buehrer 35 151 4.31 8 18 22 5.3% 31.79% $135,329 $896 $3,867 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
Mark W. Buehrer 34 138 4.06 12 14 12 8.7% 27.54% $160,945 $1,166 $4,734 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
Mark W. Buehrer 27 128 4.74 13 14 12 10.16% 30.47% $157,967 $1,234 $5,851 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
Mark W. Buehrer 29 133 4.59 8 11 19 6.02% 28.57% $132,344 $995 $4,564 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
Mark W. Buehrer 26 86 3.31 6 10 5 6.98% 24.42% $76,239 $887 $2,932 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
Mark W. Buehrer 9 22 2.44 1 1 5 4.55% 31.82% $18,467 $839 $2,052 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 31 166 5.35 22 20 21 13.25% 37.95% $211,593 $1,275 $6,826 0 2
Mark W. Buehrer 8 23 2.88 2 1 2 8.7% 21.74% $10,044 $437 $1,256 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
Mark W. Buehrer 8 17 2.13 0 1 1 0% 11.76% $2,550 $150 $319 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
Mark W. Buehrer 18 46 2.56 1 7 3 2.17% 23.91% $23,896 $519 $1,328 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
Mark W. Buehrer 16 72 4.5 6 5 4 8.33% 20.83% $42,074 $584 $2,630 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
Mark W. Buehrer 17 90 5.29 9 11 9 10% 32.22% $39,966 $444 $2,351 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
Mark W. Buehrer 16 74 4.63 6 10 11 8.11% 36.49% $48,064 $650 $3,004 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
Mark W. Buehrer 14 50 3.57 3 8 5 6% 32% $24,681 $494 $1,763 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 25 113 4.52 8 14 14 7.08% 31.86% $218,832 $1,937 $8,753 0 1
Mark W. Buehrer 12 28 2.33 1 0 1 3.57% 7.14% $3,272 $117 $273 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
Mark W. Buehrer 7 25 3.57 2 2 4 8% 32% $2,654 $106 $379 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
Mark W. Buehrer 7 19 2.71 0 5 3 0% 42.11% $3,348 $176 $478 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
Mark W. Buehrer 3 3 1 0 0 0 0% 0% $50 $17 $17 0 0