Detroit Golf Club, North Course
Caddie GI — Weekly Primer

Rocket Classic

July 30 – August 2  ·  Detroit Golf Club (North)  ·  Detroit, MI  ·  Par 70, 7,328 yards
Last Week — 3M Open

Jackson Koivun has arrived. A month after sharing low-am honors at Shinnecock, the young phenom won the 3M Open in his third start as a professional. He adds a PGA Tour win to his already eye-popping resume.

This kid is going to be a star, as long as his back holds up. He finished −25 at TPC Twin Cities, a tournament record, and played a bogey-free weekend with Scottie Scheffler breathing down his neck on Sunday. Scottie closed 64–63 and still lost by three — his fifth runner-up of a season in which he has won once, in his first start of the year back in January.

Jackson Koivun after winning the 3M Open
Jackson Koivun, 3M Open champion.

Michael Kim (great X follow) logged a 59, making twelve birdies without a bogey on Friday and holed a 24-footer at the last. It was the 15th 59 in Tour history and the first sub-60 round anyone has posted at TPC Twin Cities. He led by three going into the weekend, but Koivun stole the show from there. The recent champ is back in the field this week.

Rocket Classic At a Glance
Winning Score−11 to −13 Primary SkillSG: Approach, 175+ yds
Model FavoriteCameron Young (+1025) Dark HorseDavis Thompson (+7200)
Best HoleNo. 14, par 5 (561) Hardest HoleNo. 17, par 4 (537)
FedExCup Bubble WatchRicky Castillo (68th), Michael Thorbjornsen (69th), Jackson Koivun (70th), Andrew Putnam (71st), Brooks Koepka (84th) Weather RiskFirm early, rain risk Sunday
Defending ChampionAldrich Potgieter, −22 — won a five-hole playoff as a 20-year-old. Missed the cut in each of his last two starts.
Sunday QuestionThe last Rocket Classic, on a course playing its hardest version. Does Detroit get a finish worth remembering?
The Setup

Tyler Rae spent last fall filling in a pond

It was the only water hazard on the golf course, sitting in front of the 14th green, and it had never belonged there. Donald Ross drew the North Course at Detroit Golf Club in October 1914. Robert Trent Jones came through in the 1950s, took out bunkers, planted trees, and added the pond. Rae, working from Ross's original plans, put the bunkers back (84 of them became 91), took the trees out, and filled the pond with fescue.

The check came out to $16.1 million. It's now a par 70 course instead of 72 measuring 7,328 yards, and the two short par 5s that drove much of the scoring in this tournament are now long par 4s, which could consequently be two of the tougher holes on the course this week at their length.

Purse: $10 million. Winner's share $1.8 million, plus 500 FedExCup points. 144-player field, 21 of the world's top 50, no Scottie Scheffler. This is the 33rd of 34 regular-season events — only the Wyndham stands between the field and the top-70 cutoff.

This will also be the last Rocket Classic. Rocket Companies declined its option for 2027, ending a title sponsorship that has run since 2019 and cost the company north of $100 million. Tournament director Mark Hollis put the exit down to two words, optionality and certainty: at roughly $15 million a year the money was not the issue, but the tournament could never be sure which dates it would draw, and dates determine the field, the crowd and the rating.

Just this morning the Tour named the replacement, and it is not in Detroit. The insurance company Sompo will sponsor a full-field event at Silverado Resort in Napa from July 29 to August 1, 2027 — same dates, on the other coast. In 2028 it becomes one of the new Championship Series events and moves again, to a market the Tour has not yet named. The expansion markets Brian Rolapp named in March were New York, Chicago, Philadelphia, San Francisco, Washington and Boston. Detroit was not among them.

Three players who have won this tournament came back to play it out. Rickie Fowler took the 2023 playoff. Tony Finau still holds the scoring record at −26. And Cam Davis, the only two-time champion, and an unlikely one at that, won in 2021 and again in 2024. His second win came without a single top-10 anywhere else that season, which tells you how precisely this one golf course fit him. He likely was not a proponent of any course renovations.

DayTV Coverage (ET)
Thu 7/30Golf Channel 4–7 PM
Fri 7/31Golf Channel 4–7 PM
Sat 8/1Golf Channel 1–3 PM · CBS 3–6 PM
Sun 8/2Golf Channel 1–3 PM · CBS 3–6 PM

PGA Tour Live on ESPN+ carries featured groups all four days.

Course DNA

The birdie-fest was built on par 5s. There are two left.

Winning score here has averaged 22.3 under par across seven editions. Play that same golf against par 70 and it converts to 14 under. Rae expects the restored course to take another two or three strokes on top of that, which puts the honest projection around 11 to 13 under — comfortably the least-under-par winner in tournament history.

In past years, missing the fairway at Detroit Golf Club was mostly a non-issue. Only 13.3% of the strokes gained at this event came off the tee last year, against a Tour average of 15.3%, and the course ranked 36th of 38 in off-the-tee difficulty. Fairways were about tour-average width and the miss was barely punished. Players pulled driver on 86% of their tee shots against a Tour average of 69.8%, and averaged 301.7 yards, fifth-longest of the 40 courses DataGolf tracks. It almost never mattered who hit them.

That is the part most likely to have changed. Golf Digest contributor Ron Klos walked the front nine this week and shared some notes. Among them:

None of that appears in last year's strokes-gained numbers, because none of it was there.

The separation comes with the second shot and the putter. The greens were rebuilt to Ross's original contours, growing from roughly 5,200 square feet on average to 6,700 and recovering pin positions the club had lost over decades. They are pure bentgrass now, no Poa in them yet, and they should run about 12½ on the Stimpmeter — new bentgrass tends to play springy and repel an approach through its first season. In 2019 every player who finished inside the top 20 gained strokes putting. One read on that is this tournament is a conversion contest, decided by whoever runs hot from eight-plus feet.

YearWinnerScoreNote
2025Aldrich Potgieter−22Five-hole playoff
2024Cam Davis−18Won by one
2023Rickie Fowler−24Playoff over Morikawa
2022Tony Finau−26Tournament record
2021Cam Davis−18Playoff, first Tour win
2020Bryson DeChambeau−23Won by three
2019Nate Lashley−25Wire-to-wire, ~300/1

The strokes-gained record does not really support it. Winners here have separated by enormous margins across the whole bag. Finau gained 18.6 strokes on the field in 2022, Lashley 17.3 in 2019, Fowler 15.4 in 2023. Nobody has putted their way into this trophy from nowhere. Flat greens gave good iron players a way to cash what they had already created.

Rae's work does not change the putting surfaces so much as it changes what you are holding when you approach them. Six par 4s now measure 470 yards or longer: the 2nd, 6th, 7th, 12th, 17th and 18th. The 11th is a 246-yard par 3. That is a third of the golf course asking for a long iron, on a property that used to ask for a wedge.

Two of the bigger changes do not appear on the scorecard at all. The third hole is no longer the third hole — the routing now borrows the South Course's opening hole, which makes this officially a composite course. And on the seventh, the seventy-foot tree that guarded the left side of the approach has been taken down, the green has moved well right of where it sat, and the old green is now a bailout area.

Conditions: The question is firmness. Soft bentgrass would hand the field back some of what Rae just took away, because a receptive green makes a 4-iron behave like a wedge. Dry and firm, and those two converted par 4s become genuinely severe.
Par+

The 3M Open Scorecard

Par+ weights market pricing and current form most heavily, and the 3M rewarded exactly one of those reads. Scheffler ranked first and finished second, which is the model doing its job on the one player nobody needed help identifying. Hideki Matsuyama at 15th and Ben Kohles at 12th both landed inside the top ten. Below that it thinned out fast: three of the top ten missed the cut, and only one of the top five finished inside the actual top five. Koivun ranked 37th on 27 percent stat coverage, which is less a miss than an admission. Two professional starts is not enough history for any composite to read.

Par+ Scorecard — 3M Open
TPC Twin Cities  ·  Won by Jackson Koivun (−25)
Grade
C
1/5
Top-5 Par+ in
actual top 5
7/10
Top-10 Par+
made the cut
#37
Winner's Par+
rank
3/12
Actual top 10 from
Par+ top 25
✓ Hits
#1 Scheffler → 2nd
#12 Kohles → 9th
#15 Matsuyama → T3
✗ Misses
#3 Suber → CUT
#5 Ghim → CUT
#9 Keefer → CUT
↑ Surprises
#37 Koivun → Win
#83 Phillips → T3
#52 McCarthy → T3

This Week's Model Picks

Every course-fit model in golf, ours included, started this week with a handicap: the venue in the historical record is not the venue being played. Ours had Detroit filed as a putter's course, which it was for seven years and is not anymore. We rebuilt that input as a ball-striker's test before running the numbers below. It is a judgment call and you should know we made it.

So the useful question is narrower than usual. Not who has played well here, but who is good at the specific thing the new holes ask for: a long iron or a fairway wood into a Ross green, twice a round, on holes where par is now a fine score. That profile favors ball-strikers over the aggressive putters this tournament has historically rewarded.

#PlayerPar+FitMarket %Top Input
1Cameron Young+1.2389.28.9%Course fit
2Si Woo Kim+1.2285.15.3%Form
3Patrick Cantlay+1.2283.64.4%Course fit
4Chris Gotterup+1.1887.65.3%Form
5Wyndham Clark+1.1883.15.1%Form
6Russell Henley+1.0976.54.1%Bogey avoid
7Jackson Koivun †+1.094.2%Form
8Xander Schauffele+0.9883.05.7%Course fit
9J.J. Spaun+0.9273.62.9%Approach
10Hideki Matsuyama+0.8665.02.8%Form
Par+ composite: market pricing (35%) + current form (25%) + course fit (20%) + SG: Approach L24 (10%) + bogey avoidance (10%), blended with a skill baseline and guardrail caps. Par+ is strokes better than field expectation. Market-implied probability via sportsbooks as of July 27. Course-fit archetype: Ball Striker. Top Input names the strongest of the four skill components for each player. Market pricing is excluded from that column because at 35% weight it leads for almost everyone. † Koivun is running on 27% stat coverage and three events. His course-fit sample is too thin to score, so it is left blank, and his Par+ is a placeholder rather than a read.

A few notes:

The argument going around this week is that Ross greens produce putting contests regardless of par 70 or 72, with East Lake and Sedgefield offered as the evidence, and that the restoration changes the winning number without changing the skill that produces it. That may well be right and we may be wrong. The only counter worth making is that a 246-yard par 3 and six par 4s over 470 yards do not much care how good the greens are.

Under the Radar

Three players outside our Par+ top ten with a real path to Sunday.

Davis Thompson Par+ #12

Par+ ranks him 12th while the market has him 24th, the widest gap in our top 15, and the case is specific: he grades above average as a ball-striker and inside the top ten for course fit under the new classification. He also arrives in form. A third-round 63 at the 3M moved him 23 places up the board, and he reached 8 under through 12 with a 59 briefly in view before a bogey at the 13th ended it. He finished T7. The short game is the weak link and the model says so plainly. But this is now a golf course that asks a long iron the question, twice a round, and that is the part he does well.

Par++0.84 (#12) Course Fit79.6 (#9) Market+7200 (#24) Last WeekT7 at 3M
Jake Knapp Par+ #16

Seventh in the field for course fit, the best mark of anyone outside our top ten, with an approach number over the last 24 rounds that beats eight of the ten players ranked above him. He closed the 3M with a 62 built on a back nine of 28: seven straight birdies to open it, a par at the hard 17th, a birdie at the last. That matched the back-nine record Koivun had set the day before, and it was worth T13. The caveat is his wrist. He is playing with tape and a splint and has described the past few months as pain management. He also owns a 59, from the 2025 Cognizant Classic, so the ceiling is not the question.

Par++0.73 (#16) Course Fit82.8 (#7) Market+3600 (#12) Last WeekT13, closed 62
Ben Kohles Par+ #23

Thirty-six years old, splitting this season between the PGA and Korn Ferry tours, and still without a Tour win. He opened the 3M with a career-low 62, eagling the last from 241 yards, and led Scheffler by three. He was still within three with a round to play before a closing 70 left him ninth. Three weeks earlier he made double bogey on the 72nd hole at the John Deere and finished third. Our model is cool on his course fit, 36th, and that is the honest knock. What it likes is the second shot: only two players in our entire top ten have a better approach figure over the same window.

Par++0.62 (#23) Course Fit64.8 (#36) Market+7000 (#22) Last Week9th at 3M
The Lens

The four easiest holes were the four par 5s

Rank all eighteen holes at Detroit Golf Club by 2025 scoring average and the top of the list comes back in a block: the 7th, the 17th, the 14th, the 4th. Every par 5 on the property, in the first four positions, with nothing else close. The 7th played to 4.388, the 17th to 4.415. The 17th alone gave up sixteen eagles last year and not one double bogey.

Two of those four are gone. The 7th is a 505-yard par 4 now, its green moved well right of where it used to sit, the big tree that framed the old approach taken out. The 17th plays 537.

Hole2025 Rank20252026
No. 7EasiestPar 5Par 4, 505 yds
No. 172ndPar 5Par 4, 537 yds
No. 143rdPar 5Par 5, 561 yds
No. 44thPar 5Par 5, 592 yds
The restored 14th at Detroit Golf Club The new 14th green at Detroit Golf Club
The rebuilt 14th, where the only water on the property used to sit. Photos: @RonKlos

That is the entire restoration compressed into a scoring table. The reputation this tournament built — 22 under to win, seven straight champions at 18 under or better — was never really about short yardage or flat greens. It was about four holes where a good player expected to make 4, two of them reachable with an iron.

Take half of that away and the arithmetic moves twice. Eight strokes of par disappear over 72 holes. And the two best scoring chances in the rotation become the two holes most likely to hand a shot back on Sunday afternoon. The 17th in particular now sits exactly where it will decide something. A 537-yard par 4, second to last, holding a one-shot lead, is a different proposition than a par 5 you can get home in two.

The winner profile points the same direction. Five of the last six champions here finished inside the top 11 for strokes gained approaching, and three of the last four ranked top 20 in proximity. What moves is the birdie math. Every winner in the last six editions made at least 23 of them, four with an eagle on top. Against a par 70 with the two easiest scoring holes converted, something closer to 18 should be enough.

On the Card
Watch
Brooks Koepka — 84th in the FedExCup, first Rocket start, two weeks to reach 70th. He is priced around +5000 in a field where the market and our board mostly agree at the top.
Interesting
Si Woo Kim — ten top-10s in 2026, a T6 at the Open, and still winless since 2023.
Storyline
It's bubble watch season. Koivun sits exactly 70th after Sunday, with Michael Thorbjornsen one point ahead of him and Andrew Putnam two behind. Jason Day was in that conversation until he withdrew with a back injury.
Overheard
Tyler Rae, the architect, asked how much harder his restored course will play: “Maybe two or three strokes harder.” The winning score here has averaged 22 under. He has given you a number to hold him to.
Weather
Day High Low Rain % Wind Conditions
Thu 7/30 86°F64°F0% 7 mph Sunny
Fri 7/31 86°F68°F25% SW 5–10 mph Mostly sunny
Sat 8/1 77°F69°F20% WSW 8–15 mph, gusty Partly cloudy
Sun 8/2 74°F64°F40% NNE 5–8 mph Showers possible

The front half of the week is settled. Thursday and Friday come in hot and dry, highs in the mid-80s and effectively no rain in the daytime forecast. That is the firm end of the range, and it is the version where the two converted par 4s bite hardest. Whatever this golf course is going to be, the field finds out before the cut.

The weekend is less certain. Forecasts split badly on Sunday — somewhere between 74 and 82 degrees, with rain chances running from almost nothing to forty percent. That gap matters more than it looks. Soft bentgrass hands the field back some of what Rae just took away, because a receptive green makes a 4-iron behave like a wedge. A wet Sunday and the restored course gets the last word taken out of its mouth. Both weekend rounds carry storm risk, and if it arrives the gusts will matter more than the average wind.

Field Notes

Each week, a bird native to the tournament's corner of the country.

Kirtland's Warbler — jack pine country, northern Michigan
Kirtland's Warbler  ·  Setophaga kirtlandii
We were due for a good Warbler. Michigan's rarest songbird nests almost nowhere else on earth: 98% of the world's population breeds in a ten-county corridor around Grayling, on the ground, under jack pine still low enough to hide a nest. The habitat for these picky nesters used to be born out of wildfire, and a century of suppressing fires nearly killed off the species — 167 breeding pairs left by 1974. The recovery worked by faking it, clear-cutting mature stands and planting 1.8 million seedlings a year, and in 2019 these resilient lil guys became the first songbird ever removed from the endangered list. But the 2025 census counted 1,489 pairs, down 34% in four years. A second revival effort may be needed.
Range  Breeds in northern Lower Michigan; winters in the Bahamas Habitat  Dense young jack pine, nesting on the ground
Sources
Detroit News / Yahoo Sports — Detroit Golf Club gets tougher for PGA Tour's final Rocket Classic
Detroit News — Restoration project will 'reinstall the charm'
First Call Golf — NMP Golf Construction transforms Detroit Golf Club
GolfBlogger — It's a Fossé, Not a Ditch: DGC Previews Ross Restoration
Data Golf — Rocket Classic — Records and Stats
PGA Tour — Rocket Classic 2026 — Course Stats and Scorecard
Lineups — 2026 Rocket Classic Preview: Everything To Know About Detroit Golf Club
The Fringe — Rocket Classic and Detroit Golf Club
Out of the Rough — Rocket Classic (2026)
Sports Illustrated — 2024 Rocket Mortgage Classic Final Payouts
RickRunGood — Course Breakdown: Detroit Golf Club
Detroit News — A hole-by-hole look at the Rocket Mortgage Classic
Golf News Net — 2026 Rocket Classic field: PGA Tour players, rankings
PGA Tour — The First Look: Rocket Classic
Golf.com — 2026 Rocket Classic odds: Cameron Young is favorite
Betfair — 2026 Rocket Classic: The Punter's Preview
Detroit News — Brooks Koepka will play in Detroit's Rocket Classic for the first time
PGA Tour — Jackson Koivun wins 3M Open in third pro start
PGA Tour — PGA TOUR and Sompo announce new partnership
Detroit Free Press — Rocket Classic ending in 2026, but Detroit 'always open' for PGA Tour
Ron Klos (@RonKlos) — Hole-by-hole walkthrough, Detroit Golf Club
PGA Tour — Power Rankings: Rocket Classic
Golf Monthly — Title Sponsor Pulls Out Of Event
Cornell Lab of Ornithology — Kirtland's Warbler Overview
Detroit News — Why Kirtland's warbler numbers are dropping in Michigan
Detroit News — Wildfire smoke blankets Michigan, Detroit
Next week: The Wyndham Championship at Sedgefield Country Club, Greensboro. $8.5 million, and the last regular-season event before the top 70 is settled. Another Donald Ross course, and the one this week's field will have just spent four days being compared to.