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Adam Scott acknowledges patrons on the 18th green during the second round of the 2019 Masters.

By Mike O’Malley
AUGUSTA, Ga. — Key stats Friday after two rounds of the 83rd Masters:

5: The record number of co-leaders, all major champions, after 36 holes—Francesco Molinari (67), Jason Day (67), Brooks Koepka (71), Adam Scott (68) and Louis Oosthuizen (66)—at seven-under-par 137. That broke the previous high of four mid-way co-leaders set in 1973 (Tommy Aaron, Gay Brewer, Bob Dickson and J.C. Snead) and matched in 2017 (Sergio Garcia, Charley Hoffman, Rickie Fowler and Thomas Pieters).

7: The deficit by Rory McIlroy, still needing a green jacket to complete the career Grand Slam, after shooting a second-round 71. He sits in a tie for 36th at even-par 144.

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7: Strokes that Koepka took on the par-5 second hole—where the field scoring average was the third-easiest of the day at 4.770. He followed his double bogey with a bounce-back birdie at the par-4 third. In last year’s U.S. Open at Shinnecock Hills, Koepka doubled the par-4 sixth and the par-4 14th in a first-round 75 but overcame it with rounds of 66-72-68 to win by one.

8: Best comeback from a 36-hole deficit to win the Masters, by Jackie Burke Jr. in 1956.

24: Masters rounds that Tiger Woods has shot in the 60s after Friday’s 68 (out of 84 career rounds).

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63: For those trying to get back into contention on Saturday, this is the low third round in a Masters, by Nick Price in 1986 with nines of 33-30, including a horseshoe lip-out birdie attempt at the 18th. A final-round 71 left Price in fifth place, three strokes behind Jack Nicklaus, who won his record sixth green jacket.

65: Friday’s low round, by Xander Schauffele, who is a stroke behind the leaders with Dustin Johnson (70), Justin Harding (69) and Woods (68).

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65: Players who made the cut of low 50 and ties (and those within 10 strokes of the lead at three-over-par 147).

68.99: Average score for Masters champions in the second round.

70.16: Average score for Masters champions in the third round.

71.98: Field scoring average on Friday (with no rounds in the 80s or no “others” scores of triple bogey or worse on a hole) versus a field average of 72.87 in the opening round.

100: Number of competitive rounds in the Masters by Phil Mickelson, who shot a 73 on Friday to trail by three strokes at T-12. Asked what No. 100 meant to him, Mickelson replied, “Just that I’m getting old.”

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131: For those aspiring to rally from a big deficit this weekend, this is the low final 36 holes in a Masters, by Johnny Miller in 1975, when his 65-66 finish left him one stroke behind winner Jack Nicklaus. Miller had trailed Nicklaus by 11 strokes after opening rounds of 75-71 and Nicklaus’ 68-67 start.