» July 10, 1950: The Giants pick up P Jim Hearn on waivers from St. Louis.

» July 22, 1950: The Giants Jim Hearn pitches his second straight complete game since being purchased from the Cards, and the Durochermen stop the Cubs, 7–0.

» August 5, 1950: Jim Hearn gives up a leadoff single to Bob Dillinger, then throttles the Pirates the rest of the way for a 5–0 win at the Polo Grounds. It is his second win since joining the Giants on July 10,

» August 13, 1950: The Giants earn a split with the Phils as Jim Hearn shuts out the Whiz Kids, 2–0. But the Phils will take 11 of their next 14 games to hold a 7-game edge over second-place Brooklyn.

» September 4, 1950: Giant hurlers Jim Hearn and Sal Maglie hurl twin shutouts over the Phils, winning 2–0 and 9–0. Coupled with a shut out loss to the Giants yesterday, the Phils have not scored in three games at home.

» September 27, 1950: The Phils rally for five runs in the eighth to tie, but the Giants win in 10 innings 8–7. Monte Irvin, sliding across the plate with the winning run, injures catcher Andy Seminick, limiting his effectiveness. He will play the next day and all through the WS, later to find out that he has a bone separation. In the nitecap, Bobby Thomson first inning inside-the-park grand slam is all the Giants need as Jim Hearn wins 5–0. The Dodgers split with the Braves cutting the Phillies lead to two games.

» August 15, 1951: Giants P Jim Hearn defeats the Dodgers 3–1 as Willie Mays makes a miraculous play in the 8th. With the score 1–1 and Billy Cox on 3rd, Mays makes a running catch of a Carl Furillo drive in deep right CF and whirls counterclockwise to throw out the astonished Cox at home. Wes Westrum's 2-run homer off Ralph Branca in the 8th provides the two-run margin. Hearn allows just six hits, all singles, as the Giants move to 10 1/2 behind Brooklyn.

» August 26, 1951: At the Polo Grounds, Chuck "The Rifleman" Connors clubs his 2nd and last ML homer, a three-run shot off Sal Maglie in the 9th to give the visiting Cubs a temporary 4–4 tie. Wes Westrum then answers with his 2nd homer of the game, off reliever Walt Dubiel, and New York wins, 5–4. New York takes the nitecap, 5–1, to run their victory streak to 14 games. Jim Hearn tops Cal McLish. Mays electrifies the crowd in the 6th by singling, advancing on a balk and a short fly, and stealing home. The Giants trail by six games.

» August 29, 1951: Pitching on 2-days rest, the Giants Jim Hearn tops 17-game winner Murry Dickson, 3–1. It is Hearn's 8th straight over Pittsburgh stretching back to 1949. The Giants gear up by recalling Hank Thompson from Minneapolis.

» September 2, 1951: Don Mueller hits two more home runs, giving him five in two days, to tie an ML mark. His 2nd homer, again off Phil Haugstad, comes a minute after he learns he is a new father. Bobby Thomson adds his 25th homer and Jim Hearn beats the Dodgers 11–2. After Mueller's 2nd homer, Haugstad decks Thomson and hits Mays with a pitch, evoking a warning from Al Barlick. Barlick had earlier thumbed Branca and Dick Williams in the 5th inning, Newcombe in the 6th when he objected to a call, and Jackie Robinson and rookie Clem Labine. Dressen then clears his bench to avoid any more thumbings. The Giants move to five games behind Brooklyn. The Dodgers are suspicious of the losses at the Polo Grounds, and later there are revelations about signs being flashed to Giant batters from the CF scoreboard. Did it happen? Sal Yvars later said, "yes," while Mueller remarked, "as for my home runs and the sign stealing, this has been much talked about and I would prefer not to comment." On the Dodgers side, Buzzie Bavasi denied it occurred, but Clyde Walker concluded, "it did happen."

» September 8, 1951: The pennant race heats up, as Dodger ace Don Newcombe 2-hits the Giants, 9–0, beating Jim Hearn. Jackie Robinson has three hits and three runs, scoring one run from 3B when he provokes Jim Hearn into wild pitching. Giants pitchers contribute 10 walks.

» September 14, 1951: Aided by five Cubs errors, Giant P Jim Hearn picks up his 15th win, 7–2. Bob Rush is the loser. Wes Westrum is tossed by Al Barlick for arguing a safe call at the plate. He'll get a fine and 3-day suspension.

» September 20, 1951: Following a day off in Cincinnati, Ken Raffensberger beats the Giants, 3–1, with reliever Blackwell striking out Westrum and Hank Thompson in the 9th with two runners on base. Jim Hearn is the loser.

» September 26, 1951: The Giants stay one game behind the Dodgers as Jim Hearn tops the Phillies 10–1 and the Dodgers crush the Braves 15–5. Campanella drives home three runs in the first inning and Newcombe coasts to his 19th win. With a 13–3 lead in the 8th inning, Robinson steals home against rookie P Lew Burdette, infuriating the Braves.

» October 1, 1951: In the National League's first best-of-three play-off since 1946, Ralph Branca of the Dodgers loses to Jim Hearn and the Giants 3–1. Branca serves up home runs to Bobby Thomson and Monte Irvin. It is the first game ever to be broadcast live coast-to-coast. With both the Dodgers and Giants tied 96–58 at the end of regulation, Brooklyn wins the coin toss and elects to play the first game of the playoffs at home. The next two games will be played at the Polo Grounds.

» May 10, 1953: Pittsburgh IF Eddie O'Brien and Johnny O'Brien become the first twins to play for the same team in the same game, when Johnny enters the nitecap of a Giants game on defense and Eddie later pinch runs. But the Giants take the twinbill, 4–0, behind Sal Maglie's 3-hitter, and 3–2. In game 2, Jim Hearn comes within two outs of his 13th straight over the Pirates, but falters and Frank Hiller wins in relief. Bobby Hofman's pinch home run in the 9th wins it.

» May 2, 1954: Stan Musial hits five home runs in a doubleheader with the Giants in St. Louis. In attendance is 8-year-old Nate Colbert, who will be the only other player in history to accomplish this feat. The Cards win the first game 10–6 when Musial's three-run homer in the 8th off Jim Hearn. Stan's first two homers are served up by Johnny Antonelli. The Cards hit five homers in the opener, while the Giants hit three, including back-to-back blows by Wes Westrum and Whitey Lockman. In the nightcap of the doubleheader, Don Mueller goes 5-for-5, and the Giants win, 9–7, with eight runs in the 4th inning. Musial totals a since-topped record 21 bases in the two games, going 4-for-4 with a walk in game 1, and 2-for-4 with a walk in game 2. Don Mueller has six hits for New York.

» July 9, 1955: Giants P Jim Hearn does it all, hitting two HRs. and whipping the Dodgers 10-2 at the Polo Grounds.

» July 31, 1955: On the anniversary of his 4-HR game, Braves 1B Joe Adcock has his arm broken by a pitch from Giant Jim Hearn. He will be out for the season.

» October 11, 1956: The Phillies buy Jim Hearn from the Giants and send Stu Miller to the Giants farm club in Minneapolis.

» May 10, 1959: The Phils Jim Hearn comes on in relief to pitch 11/3 innings against the Pirates. He allows two earned runs before the game is suspended, with the Pirates ahead 6–4. Hearn is released before the game is completed in July and will be charged with the loss two months after his retirement.

» February 14, 1960: Jim Hearn wins the ML Baseball Players Golf Tournament.