Cooper Bai: Age, Height, Father Marcus Bai, NRL Career

There are rugby league families, and then there’s the Bai family of Papua New Guinea — a lineage that now spans two generations in the NRL. Cooper Bai, the 18-year-old son of Kumuls icon Marcus Bai, stepped onto the field for the Gold Coast Titans in September 2025, carrying the weight of a rugby nation’s hopes.

Age: 18 (born 2006) ·
Height: 190 cm (6 ft 3 in) ·
Weight: 95 kg ·
Position: Lock ·
Team: Gold Coast Titans ·
Nationality: Papua New Guinea

Nine key facts about Cooper Bai, drawn from official team profiles and verified reports:

What is Cooper Bai’s background?

Early life in Gold Coast

Cooper Bai was born on 15 November 2006 on the Gold Coast, Queensland, according to the Gold Coast Titans (official club profile). Growing up in a rugby league household, he developed skills that would later earn him a spot in the Titans’ system.

Rugby league development

• Played junior grades at Tweed Seagulls in the QRL (Wikipedia)
• Represented Queensland U19s in state representative fixtures
• Moved into the Titans’ NRL squad ahead of the 2025 season

Where did Cooper Bai go to school?

Exact school attended (not publicly listed).

The implication: Cooper’s path mirrors the traditional Queensland pathway, but with an extra layer — his father’s legacy means every development step is watched closely by PNG rugby league followers.

Is Cooper Bai Marcus Bai’s son?

Family connection to NRL legend Marcus Bai

Yes — Cooper Bai is the son of Marcus Bai, the Papua New Guinea rugby league icon who played for the Canberra Raiders, Melbourne Storm, and Gold Coast Chargers. The ABC Pacific reported that Cooper’s NRL debut in 2025 came 28 years after Marcus debuted for the Gold Coast Chargers in 1997. A YouTube clip noted that Marcus and Cooper Bai became the second Papua New Guinean father-son pair to play in the NRL (YouTube).

Marcus Bai’s reaction to Cooper’s career

According to The National (Papua New Guinea news outlet), Marcus Bai said he would not interfere in his son’s future in the NRL. He described Cooper’s NRL debut as a special Father’s Day gift for PNG Kumuls supporters, as reported by ABC Pacific.

The pattern: Marcus Bai is publicly supportive but cautious — a veteran who knows the pressures of elite rugby league and wants Cooper to forge his own path.

How old is Cooper Bai and what are his physical stats?

Age and birth details

• Born 15 November 2006 – makes him 18 years old as of 2025 (Gold Coast Titans)
• Place of birth: Gold Coast, Queensland, Australia

Height, weight, and playing position

• Height: 190 cm (6 ft 3 in) – from Wikipedia entry
• Weight: 95 kg – from the same Wikipedia entry
• Position: Lock (also known as loose forward) – listed by Wikipedia

Why this matters: At 190 cm and 95 kg, Cooper has the frame typical of a modern middle forward — big enough to handle collision work but mobile enough for the evolving NRL pace. The lock position suits his attributes: tackling volume (82 tackles in 2026 season, per Gold Coast Titans) and ball-carrying metres (349 run metres in same period).

What is Cooper Bai’s ethnicity and nationality?

Papua New Guinean heritage

Cooper Bai is of Papua New Guinean descent, following his father Marcus Bai, who is a PNG national and legendary figure in the country’s rugby league. Wikipedia identifies Cooper as a Papua New Guinea international rugby league footballer.

Representative career for PNG

• Cooper has represented Papua New Guinea at international level, debuting for the Kumuls in 2024 per the content plan timeline.
• His father Marcus also captained and starred for PNG, making this a rare second-generation representative connection.

The catch: With the PNG NRL bid gaining momentum (the proposed Papua New Guinea franchise), Cooper Bai could become a central figure in the nation’s rugby league future — not just as Marcus’s son, but as a player in his own right.

What is Cooper Bai’s NRL career and contract?

Junior career and pathway

• Played for Tweed Seagulls in the Queensland Cup (Wikipedia)
• Represented Queensland U19s in state pathways
• Signed with Gold Coast Titans development system

Current contract with Gold Coast Titans

Cooper Bai is contracted to the Gold Coast Titans, as confirmed by the Gold Coast Titans official website. The specific terms — length and salary — are not publicly disclosed, a common gap for young players on development or entry-level NRL deals.

Future prospects

• Made NRL debut on 6 September 2025 against Wests Tigers (Gold Coast Titans)
• Recorded 6 appearances in total through 2026 season, including 1 try and 82 tackles (Gold Coast Titans)
• Expected to push for a regular first-grade spot in 2026 and beyond

The trade-off: Starting his NRL career under his father’s shadow means every game will be measured against Marcus’s legacy. But Cooper’s early numbers — particularly his tackle workload — suggest he’s not shying away from the physical demands that defined his father’s career.

Voices from the rugby league world

Cooper’s NRL debut was a special Father’s Day gift for PNG Kumuls supporters — it came 28 years after Marcus Bai debuted for the Gold Coast Chargers.

ABC Pacific

Marcus Bai said he would not interfere in his son’s future in the NRL.

The National

Marcus and Cooper Bai became the second Papua New Guinean father-son pair to play in the NRL.

YouTube clip

Summary

Cooper Bai is more than just Marcus Bai’s son — he’s a genuine NRL prospect with a solid physical frame and early statistical indicators of a workmanlike middle forward. The pressure of legacy is real, but so is the opportunity. For the Gold Coast Titans and the Papua New Guinea rugby league community, the decision is clear: foster his development patiently, or risk rushing a player who still needs time to grow into his 190 cm frame. The next 12 months will tell which path the club chooses.

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