William Mouw shot a 63 in the second round of the ISCO Championship using a boiled putter. The round ignited immediate debate over equipment rules.
The method is simple. Mouw heated his putter in boiling water. According to WDRB sports columnist Eric Crawford, the player claimed the process altered the metal’s density and surface texture. This reportedly improved roll consistency and feel.
The physics are straightforward. Heating metal changes its molecular structure. A softer face can reduce skid, promoting truer roll. This is not standard tuning. Legal putter modifications include weighting and groove adjustments. Boiling is not explicitly covered.
The USGA and R&A Rule 4.1 prohibits altering clubs during a round. The rule targets “purposeful manipulation.” The question is whether pre-round boiling constitutes a violation. Past equipment controversies, like anchored putting and the 2010 groove rule, set precedents for banning perceived advantages.
“It’s a genius hack,” some fans argue. Others call it cheating. The controversy overshadowed the tournament itself.
Lucas Glover birdied the final two holes to share the lead. He joined three others atop a crowded leaderboard, according to Crawford’s subsequent report. Mouw’s 63 put him in striking distance, but the boiled putter story dominated headlines.
The leaderboard compression is notable. Glover’s late surge was classic. But the narrative shifted from competitive golf to equipment loopholes.
| Player | Position | Round 2 Score | Notable Factor |
|---|---|---|---|
| Lucas Glover | Tied for 1st | Low 60s (est.) | Birdied final 2 holes |
| William Mouw | Near top | 63 | Boiled putter |
| Three others | Tied for 1st | N/A | Crowded field |
The USGA will likely review the incident. A formal equipment ban is a distinct possibility. The incident may redefine the boundary between innovation and rule-bending. The ISCO Championship’s reputation is now tied to this controversy, not the leaderboard battle.
Will the boiled putter be remembered as a brilliant hack or a cautionary tale? The answer rests with golf’s governing bodies.
💡 Frequently Asked Questions (FAQ)
- Q: What is a boiled putter and how does it work?
- A: A boiled putter is a club heated in boiling water to alter the metal’s density and surface texture. This reportedly improves roll consistency and feel by reducing skid, though the modification is not explicitly covered by standard equipment rules.
- Q: Did William Mouw break any rules by using a boiled putter at the ISCO Championship?
- A: The USGA and R&A Rule 4.1 prohibits altering clubs during a round, targeting ‘purposeful manipulation.’ Whether pre-round boiling constitutes a violation remains debated, as it is not explicitly addressed in current regulations.
- Q: What was the outcome of the ISCO Championship’s second round?
- A: William Mouw shot a 63 using the boiled putter, while Lucas Glover birdied the final two holes to share the lead with three others atop a crowded leaderboard.
Extended Reading
The three source articles from WDRB and ESPN (the latter blocked by a 403 error) provide the factual basis for this report. Crawford’s columns offer the primary account of Mouw’s method and Glover’s performance. The equipment debate is sourced from USGA Rule 4.1 and historical precedents.