# Broncos v Sharks — NRL Round 18 2026 AI Prediction by Alphr

## Full Time: Broncos 16 – 28 Sharks

_Sharks sink their teeth into Broncos._

Half time: 6 – 10 · Alphr AI pre-game win probability: Broncos 30% / Sharks 70% · Suncorp Stadium, Brisbane · Sat, 04 July, 07:35 pm AEST

**Try Scorers** — Broncos: Cory Paix (33'), Hayze Perham (66'), Deine Mariner (74' Tipped ⚡) · Sharks: Sione Katoa (9' 1st), Sione Katoa (22' 1st), Sione Katoa (56' 1st), William Kennedy (61' Tipped ⚡), Braydon Trindall (76' Tipped ⚡)

### Match Winner — AI Prediction Market (resolved)

| Team | Pre-game AI win probability | Result |
|---|---|---|
| Sharks | 70% | Won |
| Broncos | 30% | Lost |

Model call: **Correct** · Margin: 8.9 predicted → 12 actual · Markets hit: 4/4

_AI win probability priced pre-game · Markets hit = core betting markets._

### Full-Time Report

**Brisbane Broncos vs Cronulla Sharks Prediction & Tips | NRL Round 18 2026**

_By Ben Dunlop · Published: 1 July 2026, 08:08 am · Last updated: 4 July 2026, 09:24 pm_

Broncos 16–28 Sharks in NRL Round 18 at Suncorp Stadium, Brisbane. Here's how the result stacked up against the model's call, with the win-probability story and where the value landed.

Sharks beat the Broncos 28-16 at Suncorp Stadium, but the numbers tell a more nuanced story. Sharks had a slight edge in possession at 53%, yet it was their efficiency, particularly through Sione Katoa's hat-trick, that made the difference. Katoa's performance highlighted Sharks' clinical approach in attack.

Broncos couldn't match Sharks' forward momentum. Sharks covered 1,687 run metres to Broncos' 1,315, highlighting a significant gap in forward power. Pre-match ratings had already tipped Sharks as stronger across the board, and the post-contact metres reinforced this: Sharks gained an extra 153 metres after contact, wearing down Brisbane's defence.

Errors were close, with Broncos making 13 to Sharks' 11. However, Sharks capitalised on these mistakes more effectively, reflected in their 78% completion rate. Broncos had a slight advantage in discipline, conceding only five penalties to Sharks' ten, but couldn't convert this into a win.

Tackles and breaks were more evenly matched. Broncos missed fewer tackles (18) compared to Sharks' 21, and both teams made three line breaks each. The difference lay in execution. Brisbane's tries, from Cory Paix, Hayze Perham and Deine Mariner, felt more individual, while Sharks' scores showed cohesive play.

Alphr's model was nearly spot-on. It predicted a Sharks win by 8.9 points; the actual margin was 12. The model foresaw a total of 48 points, close to the actual 44. This reinforced Sharks' status as pre-match favourites and their strong form, contrasting with Broncos' five straight losses.

The match followed a predictable pattern, with Sharks leading 10-6 at half-time. They extended their lead in the second half with Katoa’s try at 55 minutes and Kennedy's soon after. Broncos made a late push, closing the gap to 16-22 with tries from Perham and Mariner, but Braydon Trindall's try sealed the win for Sharks.

Defensively, Sharks' effective tackle percentage of 91.7% was better than Broncos'. Their ability to absorb pressure and counterattack was crucial, reflecting their higher defensive rating pre-match. Despite the final margin, Sharks seemed to control the game more than the scoreline suggests.

In the end, Sharks not only won the stat battle but also showed grit and tactical execution. Brisbane, though briefly closing in, were outmatched in key phases. Sharks deserved the win, underpinned by hard yards and relentless attacking.

**Scoring by Half**

| Team | H1 | H2 | T |
|---|---|---|---|
| Broncos | 6 | 10 | 16 |
| Sharks | 10 | 18 | 28 |

**Key Match Stats**

| Broncos | Stat | Sharks |
|---|---|---|
| 47% | Possession | **53%** |
| 75% | Completion rate | **78%** |
| 1,315 | Run metres | **1,687** |
| 443 | Post-contact metres | **596** |
| 3 | Line breaks | 3 |
| **21** | Tackle breaks | 18 |
| 6 | Offloads | **9** |
| 90.9% | Effective tackle % | **91.7%** |
| **18** | Missed tackles | 21 |
| 13 | Errors | **11** |
| **5** | Penalties conceded | 10 |
| 585 | Kick metres | **589** |

**Model Report Card**

Our model correctly predicted Sharks to win at 70% probability. The margin model was sharp, predicting Sharks by 8.9 vs the actual margin of 12 points. Total score prediction of 48 was close to the actual 44, within 4 points. Sharks led 6–10 at the break and pulled away in the second half to win by 12. The model went 7/17 on this match. Sharks covered the 7.5-point line. The 1-12 margin band call landed. The under 48.5 total call was correct.

**Referee Watch**

Gerard Sutton officiated this match (373 career games). The 44-point combined total was right in line with Gerard Sutton's career average of 42. Despite Gerard Sutton's 56% career home-team win rate, the away side Sharks prevailed. 62% of his career sin bins go against away teams, a statistically significant away-team bias.

**Key moments (momentum model)**

- 8' Try — Sione Katoa (Sharks) — 0-4 · win-prob swing -3 pts
- 22' Try — Sione Katoa (Sharks) — 0-10 · win-prob swing -3 pts
- 32' Try — Cory Paix (Broncos) — 4-10 · win-prob swing +4 pts
- 55' Try — Sione Katoa (Sharks) — 6-14 · win-prob swing -4 pts
- 61' Try — William Kennedy (Sharks) — 6-20 · win-prob swing -2 pts
- 66' Try — Hayze Perham (Broncos) — 10-22 · win-prob swing +1 pts
- 73' Try — Deine Mariner (Broncos) — 16-22 · win-prob swing +3 pts
- 76' Try — Braydon Trindall (Sharks) — 16-26 · win-prob swing -4 pts

_Official NRL match stats · Generated by Alphr's model_

### Edge Analysis — the model's pre-game markets

- **Head to Head:** Sharks to win @ $1.46 (edge +5.2%) — model probability 70.2% — result: WON
- **Line / Spread:** Sharks -7.5 @ $1.91 (edge +0.0%) — result: WON
- **Margin Band:** Sharks 1-12 @ $2.55 (edge +0.0%) — result: WON
- **Total (Over/Under):** Under 48.5 @ $1.91 (edge +0.0%) — result: WON
- Predicted margin: Sharks by 9 · Predicted total: 48

### Match Preview (pre-match read)

The model is firm on Sharks here: 70% to see off Broncos. The heaviest factor is the ratings gap: Sharks sit 203 ELO points clear, 1553 to 1350. Form leans Sharks' way: 4 from their last 5, against 0 for Broncos.

Sharks own the matchup too, leading 5 of 7 factors including ELO Difference, Forward Pack and Backline Quality. The margin model has Sharks by 8.9, with the two sides combining for about 48. Sharks to win, and win clearly. The model isn't hedging.

Broncos have won 6 of the last 10 between these two, and Sharks took the most recent meeting 28-16 in 2026 Round 18.

Broncos have leaked 136 in their last four; Broncos are 2-10 at home this year. Sharks have leaked 124 in their last four. Broncos have won 3 games this season after trailing at half-time.

On the ladder it's Broncos 13th against Sharks 8th.

The market has Sharks favourites, Broncos $2.72 and Sharks $1.46, with the line at Broncos +7.5 and the total at 48.5.

Sharks come in fresher, 13 days between games against 7.

Gerard Sutton has the whistle: 15.0 penalties a game (whistle-happy), 0.6 sin bins a game.

**By the numbers**

|  |  |
|---|---|
| H2H (last 10) | Broncos 6 · Sharks 4 |
| Last meeting | Sharks 28-16 |
| Broncos last 4 | LWLW · 94 for, 136 against |
| Broncos at home | 2-10 this season |
| Sharks last 4 | LLWL · 74 for, 124 against |
| Sharks away | 6-7 this season |
| Ladder | Broncos 13th · Sharks 8th |
| Finals odds | Broncos 0% · Sharks 100% |
| Market | Broncos $2.72 · Sharks $1.46 |
| Line | Broncos +7.5 · total 48.5 |
| Rest gap | Broncos 7d · Sharks 13d |
| Referee | Gerard Sutton · 15.0 pens/g · 0.6 bins/g |

_Pre-match read · Alphr model_

### Referee Indicator — Balanced

**Gerard Sutton** — 373 career games since 2012.

| Team | Record under Gerard Sutton | Win rate |
|---|---|---|
| Broncos | 35W–24L | 59% |
| Sharks | 27W–21L | 56% |

Avg total: 41.8 pts · Home win %: 56% · Home bias: Leans home

Both sides have a similar record under Gerard Sutton, Broncos 35W–24L (59%) and Sharks 27W–21L (56%). Home teams win 56% of his matches (vs ~52% league avg).

Penalises away teams more, 5.3 against home vs 6 against away. 62% of his 168 career sin bins go to away teams.

### Recent Form (Last 5)

| Broncos | Stat | Sharks |
|---|---|---|
| 0.0 | Wins (Last 5) | 4.0 |
| 17.0pts | Avg Score | 23.6pts |
| 34.4pts | Avg Conceded | 17.0pts |
| -17.4pts | Avg Margin | 6.6pts |
| 1601.4m | Run Metres | 1623.2m |
| 4.4 | Line Breaks | 4.4 |
| 360.4 | Tackles | 363.6 |
| 11.8 | Errors | 10.6 |

### Form & History

_Last 5 games, oldest → newest._

| Team | Last 5 | Avg Pts |
|---|---|---|
| Broncos | R11 L · R13 L · R14 L · R15 L · R17 L | 17.0 |
| Sharks | R11 W · R13 W · R14 W · R15 W · R16 L | 23.6 |

### H2H History (Last 5) — Broncos lead 3-2

| Season | Round | Home | Score | Away |
|---|---|---|---|---|
| 2025 | R16 | Broncos | 34 – 28 | Sharks |
| 2024 | R14 | Broncos | 12 – 22 | Sharks |
| 2023 | R14 | Sharks | 12 – 20 | Broncos |
| 2022 | R8 | Broncos | 16 – 7 | Sharks |
| 2021 | R24 | Sharks | 24 – 16 | Broncos |

### Positional Matchup

_Season-to-date production per game with league-wide attack/defence tiers (17 teams)._

**Field Matchup** — where one team attacks vs where the other concedes:
- Broncos' best path is the left edge: NRL's 12th-ranked left edge attack (1.27 tries/game) runs at a Sharks defence ranked 9th there (1.36 conceded/game). Key man: Arthars, 4 tries in that channel this season.
- Sharks' best path is the middle: NRL's 4th-ranked middle attack (1.93 tries/game) runs at a Broncos defence ranked 15th there (2 conceded/game). Key man: Trindall, 7 tries in that channel this season.

| Channel | Broncos | Sharks |
|---|---|---|
| Left | 1.27/g (att 12th) · concedes 1.6/g (def 12th) | 1.5/g (att 7th) · concedes 1.36/g (def 9th) |
| Middle | 1.4/g (att 12th) · concedes 2/g (def 15th (weak)) | 1.93/g (att 4th (strong)) · concedes 1.36/g (def 6th (strong)) |
| Right | 0.73/g (att 14th (weak)) · concedes 0.87/g (def 3rd (strong)) | 1.21/g (att 9th) · concedes 1.43/g (def 12th) |

**Attack Spine** (Halfback · Five-Eighth · Hooker)

|  | Broncos | Sharks |
|---|---|---|
| Attack rank | 12th | 1st (strong) |
| Defence rank | 14th (weak) | 10th |
| Tries scored · conceded | 8 · 14 | 14 · 10 |
| Try Assists | 1.3/g | 2.9/g |
| Run Metres | 127m/g | 173m/g |
| Tackle Breaks | 2.5/g | 2.9/g |
| Line Breaks | 0.4/g | 1.1/g |
| Tackle Efficiency | 85.7% | 88.7% |

**Outside Backs** (Fullback · Wingers · Centres)

|  | Broncos | Sharks |
|---|---|---|
| Attack rank | 14th (weak) | 10th |
| Defence rank | 10th | 9th |
| Tries scored · conceded | 29 · 40 | 34 · 37 |
| Try Assists | 0.9/g | 1/g |
| Run Metres | 643m/g | 730m/g |
| Tackle Breaks | 13.9/g | 15.9/g |
| Line Breaks | 2.4/g | 2.7/g |
| Tackle Efficiency | 79.2% | 79.5% |

**Forwards** (Props · 2nd Rows · Lock)

|  | Broncos | Sharks |
|---|---|---|
| Attack rank | 11th | 2nd (strong) |
| Defence rank | 1st (strong) | 8th |
| Tries scored · conceded | 10 · 7 | 14 · 10 |
| Try Assists | 0.3/g | 0.1/g |
| Run Metres | 545m/g | 463m/g |
| Tackle Breaks | 8/g | 7.1/g |
| Line Breaks | 0.7/g | 0.9/g |
| Tackle Efficiency | 90.3% | 90.6% |

**Who scores on Sharks** — Locks 0.16/g (lg 0.09) +78% · Centres 0.72/g (lg 0.72) +0% · Hookers 0.13/g (lg 0.13) +0%
**Who scores on Broncos** — Hookers 0.21/g (lg 0.13) +62% · Locks 0.14/g (lg 0.09) +56% · Centres 0.89/g (lg 0.72) +24%

_Tries conceded by position, last 3 seasons; positive = concedes above league average to that position._

### Try Scorer History — Who Crosses The Line

_Last 10 games, career record vs the opponent and at Suncorp Stadium. ⚡ = our AI backs them to score; 🎯 = our AI's first-try pick. 🏉 = scored in this game. Try % = share of games with a try, last 10 weighted double vs the 30 prior — historical frequency, not a market price._

**Broncos** (team sheet)

| # | Player | Pos | 2026 | Last 10 | vs opp | Venue | Try % | Alphr play | This game |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Hayze Perham | FB | 0 in 8g | 0/10g (0·0·0·0·0·0·0·0·0·0) | 0/3g | 1/8g | 12% | — | 🏉 66' |
| 2 | Grant Anderson | WG | 2 in 8g | 2/10g (0·0·0·0·0·0·0·1·0·1) | 1/5g | 5/15g | 28% | ⚡ Anytime Try $2.20 AI 42% ✗ No try; 🎯 First Try $11.00 AI 10% ✗ Not first | — |
| 3 | Kotoni Staggs | CE | 7 in 12g | 5/10g (1·2·0·1·0·0·0·0·1·0) | 4/9g | 49/88g | 42% | ⚡ Anytime Try $2.30 AI 43% ✗ No try; 🎯 First Try $12.00 AI 11% ✗ Not first | — |
| 4 | Gehamat Shibasaki | CE | 3 in 12g | 3/10g (0·1·1·0·0·1·0·0·0·0) | 2/3g | 13/27g | 36% | ⚡ Anytime Try $2.95 AI 38% ✗ No try; 🎯 First Try $15.00 AI 9% ✗ Not first | — |
| 5 | Deine Mariner | WG | 2 in 9g | 4/10g (2·0·0·0·0·0·0·1·1·0) | 0/1g | 11/32g | 34% | ⚡ Anytime Try $1.99 AI 42% ✓ Scored | 🏉 74' |
| 6 | Thomas Duffy | 5/8 | 1 in 10g | 1/10g (0·0·0·0·0·0·0·0·0·1) | 0/1g | 1/6g | 7% | — | — |
| 7 | Ben Hunt | HB | 0 in 11g | 0/10g (0·0·0·0·0·0·0·0·0·0) | 2/23g | 26/120g | 6% | — | — |
| 8 | Va'a Semu | PR | 0 in 8g | 0/10g (0·0·0·0·0·0·0·0·0·0) | 0/0g | 0/6g | 0% | — | — |
| 9 | Cory Paix | HK | 1 in 14g | 1/10g (0·0·1·0·0·0·0·0·0·0) | 1/4g | 6/51g | 10% | — | 🏉 33' |
| 10 | Preston Riki | PR | 0 in 7g | 0/10g (0·0·0·0·0·0·0·0·0·0) | 0/0g | 0/5g | 0% | — | — |
| 11 | Brendan Piakura | 2R | 2 in 10g | 2/10g (0·0·0·0·0·0·0·1·0·1) | 0/4g | 6/33g | 14% | — | — |
| 12 | Jordan Riki | 2R | 3 in 13g | 1/10g (0·0·0·0·0·1·0·0·0·0) | 0/5g | 13/74g | 10% | — | — |
| 13 | Xavier Willison | LK | 4 in 15g | 3/10g (0·0·1·1·0·0·1·0·0·0) | 0/1g | 8/39g | 22% | — | — |
| 14 | Blake Mozer | INT | 0 in 3g | 1/10g (1·0·0·0·0·0·0·0·0·0) | 0/0g | 1/9g | 9% | — | — |
| 15 | Ben Talty | INT | 2 in 15g | 2/10g (1·1·0·0·0·0·0·0·0·0) | 0/0g | 3/13g | 20% | — | — |
| 16 | Jaiyden Hunt | RES | 0 in 8g | 0/10g (0·0·0·0·0·0·0·0·0·0) | 0/2g | 0/18g | 2% | — | — |
| 17 | Jesse Arthars | RES | 5 in 10g | 5/10g (1·1·0·0·0·0·2·1·0·0) | 2/5g | 21/57g | 34% | — | — |

**Sharks** (team sheet)

| # | Player | Pos | 2026 | Last 10 | vs opp | Venue | Try % | Alphr play | This game |
|---|---|---|---|---|---|---|---|---|---|
| 1 | William Kennedy | FB | 6 in 14g | 4/10g (2·0·0·0·0·1·0·1·0·0) | 3/8g | 8/13g | 30% | ⚡ Anytime Try $2.75 AI 35% ✓ Scored | 🏉 61' |
| 2 | Sione Katoa | WG | 3 in 8g | 5/10g (0·2·1·1·0·0·0·0·0·1) | 3/9g | 5/11g | 42% | — | 🏉 9' 22' 56' |
| 3 | Jesse Ramien | CE | 3 in 9g | 3/10g (0·2·0·0·0·0·0·0·1·0) | 2/9g | 1/11g | 18% | — | — |
| 4 | KL Iro | CE | 9 in 13g | 9/10g (1·1·0·3·3·1·0·0·0·0) | 0/1g | 1/4g | 52% | ⚡ Anytime Try $2.10 AI 42% ✗ No try | — |
| 5 | Ronaldo Mulitalo | WG | 5 in 5g | 11/10g (3·0·2·1·0·2·0·2·0·1) | 1/7g | 5/12g | 50% | ⚡ Anytime Try $1.58 AI 65% ✗ No try; 🎯 First Try $8.00 AI 15% ✗ Not first | — |
| 6 | Braydon Trindall | 5/8 | 7 in 14g | 4/10g (0·1·0·0·0·1·1·1·0·0) | 2/7g | 5/12g | 32% | ⚡ Anytime Try $2.50 AI 48% ✓ Scored; 🎯 First Try $13.00 AI 10% ✗ Not first | 🏉 76' |
| 7 | Nicho Hynes | HB | 4 in 11g | 2/10g (0·0·0·0·0·0·1·0·1·0) | 2/5g | 3/15g | 22% | — | — |
| 8 | Thomas Hazelton | PR | 1 in 14g | 1/10g (0·1·0·0·0·0·0·0·0·0) | 0/2g | 1/5g | 10% | — | — |
| 9 | Jayden Berrell | INT | 0 in 5g | 0/10g (0·0·0·0·0·0·0·0·0·0) | 0/0g | 0/1g | 0% | — | — |
| 10 | Jesse Colquhoun | PR | 3 in 14g | 2/10g (0·1·0·1·0·0·0·0·0·0) | 0/1g | 0/3g | 12% | — | — |
| 11 | Billy Burns | 2R | 4 in 14g | 3/10g (1·0·0·0·0·0·2·0·0·0) | 0/2g | 1/8g | 18% | — | — |
| 12 | Teig Wilton | 2R | 6 in 12g | 5/10g (1·0·0·3·0·0·1·0·0·0) | 0/6g | 2/10g | 24% | — | — |
| 13 | Cameron McInnes | LK | 0 in 7g | 1/10g (1·0·0·0·0·0·0·0·0·0) | 1/11g | 3/15g | 10% | — | — |
| 14 | Hohepa Puru | HK | 1 in 12g | 1/10g (0·0·0·0·0·1·0·0·0·0) | 0/1g | 1/2g | 6% | — | — |
| 15 | Oregon Kaufusi | INT | 0 in 12g | 0/10g (0·0·0·0·0·0·0·0·0·0) | 1/7g | 0/10g | 2% | — | — |
| 16 | Siosifa Talakai | INT | 3 in 14g | 3/10g (1·0·2·0·0·0·0·0·0·0) | 5/8g | 4/12g | 12% | — | — |
| 17 | Tuku Hau Tapuha | INT | 0 in 1g | 1/10g (0·0·0·0·0·0·0·0·1·0) | 0/1g | 0/3g | 9% | — | — |

### Prediction Breakdown — Pure Alpha Model

**Team ELO Ratings** — Broncos 1350 · Sharks 1553 · ELO difference: 203 in favour of Sharks

**Positional Matchups** — lineup ELO by unit

| Unit | Broncos | Sharks | Edge |
|---|---|---|---|
| Forwards | 874 | 1078 | Sharks +204 |
| Backs | 885 | 1028 | Sharks +143 |
| Halves | 821 | 1067 | Sharks +246 |
| Hooker | 829 | 1055 | Sharks +227 |

**Key Prediction Factors** — what the model weighted most

| # | Factor | Weight | Favours |
|---|---|---|---|
| 1 | ELO Difference | 14.0% | Sharks |
| 2 | Forward Pack | 12.0% | Sharks |
| 3 | Backline Quality | 10.0% | Sharks |
| 4 | Halves Control | 9.0% | Sharks |
| 5 | Recent Win Rate | 9.0% | Sharks |
| 6 | Referee Tendency | 7.0% | Broncos |
| 7 | Venue Advantage | 7.0% | Broncos |

**Model Confidence: 70%** — Sharks predicted to win by 9 points · Predicted total: 48 pts

**Record:** 4/4 match predictions correct

**Prediction by Alphr** (https://alphr.com.au) — free AI predictions for every AFL, NRL & Super League match, published before kick-off and never edited. Verified track record: https://alphr.com.au/accuracy

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Last updated: 2026-07-04 11:24 UTC (latest tip update)