The tote machines will be buzzing at Golden Gate Fields on Sunday, when there is a mandatory payout in the 20&#45;cent Golden Pick 6 wager. The jackpot had reached $1,286,839 going into Friday&rsquo;s card, and if no one hits it until Sunday, track officials believe the jackpot pool could hit $4 million by post time for the first race of the sequence, the seventh race.The Golden Pick 6 jackpot pays out only if a single ticket has all six winners &ndash; except on closing day of a race meet. Since Sunday is closing day at Golden Gate, all tickets with six winners will share the pool.With large closing&#45;day fields totaling 56 runners in the six races, it would cost $118,272 to buy a ticket that would include each of the 591,360 possible combinations.Sunday&rsquo;s Golden Pick 6 begins with a field of 10 2&#45;year&#45;old maidens, eight of whom will be making their first start, and ends with a 12&#45;horse field of maiden fillies and mares in a one&#45;mile turf race. Post time for race 7 is 3:45 p.m. Pacific.The Golden Pick 6 races also could determine the meet&rsquo;s leading trainer. Jerry Hollendorfer and John Martin were tied with 55 winners going into Friday&rsquo;s races. Hollendorfer has five runners in the final six races, and Martin has three.Race 7: How do you separate the Hollendorfer duo of first&#45;timers Shackmeister and Manila Mischief in this five&#45;furlong race for maiden 2&#45;year&#45;olds? Their last four works came at the same distances on the same days and with the same times, although Manila Mischief had an extra work down south. The one to beat could be Llobo, who has a pair of solid five&#45;furlong drills for his debut, while the Hollendorfer pair has gone only a half&#45;mile. Llobo is a full brother to Tribal Echo, who was stakes&#45;placed at 2 and a stakes winner at 3. Race 8: Elegant Bel just won as the favorite at this same condition &ndash; second&#45;level optional $62,500 claiming on turf for fillies and mares. The win was her fourth in 10 starts on the Golden Gate turf. She went wire to wire going 1 1/8 miles last time and will be hard to catch at a mile Sunday. Castellani, who raced on the East Coast for most of her career, won a first&#45;level allowance at a mile on turf here in her last start.Race 9: Crusher is looking for his first win of the year in this first&#45;level optional $32,000 claimer, but he has hit the board in six of his seven starts this year. He has four wins and has hit the board in eight of his 12 starts at this 1 1/16&#45;mile distance. Foxtrot Romeo has seconditis &ndash; he has two wins and seven seconds in 36 starts &ndash; but has lost by a length or less in three of his six starts this year. Beast of Bourbon is the likely pacesetter. He makes his first start since March 13.Race 10: Sizzling Bel has been 45&#45;1 or higher in her last three starts, but she drops from $32,000 claiming into this $16,000 claimer for fillies and mares going a mile on turf, and she&rsquo;s run well enough to handle this group. She&rsquo;s won only once in 20 starts. A Little Luckier and Who&rsquo;s for Glory are each dropping a notch and have multiple wins at the distance.Race 11: Run Sophia Run rates the edge over Martin&#45;trained stablemate Duchessa based on consistency. Papercoversrock drops from a series of races against much better into this six&#45;furlong sprint for $12,500&#45;claiming fillies and mares. She could be the value play.Race 12: Slew&rsquo;s Charm, 0 for 19, may have finally found a win spot in this one&#45;mile turf race for $20,000 maiden fillies and mares. She led to midstretch and finished second in a similar race last time. Call My Bluff was 22&#45;1 when sprinting against maiden special weights in her debut and finished fourth, beaten 6 1/2 lengths. Now she drops in for the tag and stretches out on turf. She&rsquo;s a half&#45;sister to Perfectforthepart, who was stakes&#45;placed on turf. Jicama debuts with a long series of works and for a trainer who excels on turf.