NetherlandsBunschoten - NetherlandsFinished

Predictions graded

Ryan Nijboer #488Netherlands0Guy Den Ouden #231Netherlands2

Sets 4-6 · 6-7Fri 17 Jul 2026, 10:40 Predictions gradedQuarter-FinalClay

Predictions4–450%

Edges0–20%

Player Profiles

Ranking advantageGuy Den Ouden · 257 places

Ryan Nijboer

Netherlands

Current ATP No. 488 with a career-high No. 386 in August 2024. Clay is his strongest published surface split by volume and win rate.

Current ranking: #488
Peak ranking: #386
Current age: 26
Preferred surface: Clay
Hand: Right handed
Height: 180 cm

Guy Den Ouden

Netherlands

Current ATP No. 231 with a career-high No. 157 in August 2025. His 2026 ranking has slipped, but clay remains his strongest published surface split.

Current ranking: #231
Peak ranking: #157
Current age: 24
Preferred surface: Clay
Hand: Right handed
Height: 183 cm

Quick Take

Pre-match view

Context last updated 16 Jul 2026, 22:22 · Europe/Bucharest

Ryan Nijboer's superior recent clay form (11-4) and qualifying momentum make him a value underdog against Guy Den Ouden in this all-Dutch Challenger quarterfinal.

The match is expected to be close, with a high chance of three sets and over 21.5 total games. Best betting angle: Nijboer to win at 3.50 odds, offering a 26.4-point edge over the implied probability.

Context

Nijboer played two qualifying matches and two main-draw matches this week, all on clay.
- His last match was a straight-sets win over Niels Visker on July 16, giving him one day of rest before the quarterfinal.
- Den Ouden has played only two matches this week, both in the main draw.
Nijboer's last 15 clay record: 11-4 (73.3%).
- He has won 4 of his last 5 matches, all on clay.
- Recent wins include victories over Dimitar Kuzmanov (ranked 394) and Mika Brunold (ranked 414).

BetBugs edges

Compare BetBugs' chances with the market's.

BetBugs probabilities

How likely BetBugs thought each outcome was.

Result0 of 1 landed

Signal quality Medium · Uncertainty band Slight lean · Market price 3.50
The read
Nijboer's superior recent clay form (11-4 vs 8-5) and momentum from qualifying give him a slight edge in this all-Dutch quarterfinal.
- Nijboer's last 15 clay record: 11-4 (73.3%), Den Ouden's last 13 clay record: 8-5 (61.5%)
- Nijboer's last 5 matches: 4-1, all on clay, including wins over higher-ranked opponents
- Den Ouden's last 5 clay matches: 3-2, with losses to Coppejans and Nava
- Nijboer has extra match play this week as a qualifier, indicating strong form and acclimatization
BetBugs · Match WinnerlostRyan NijboerEstimated chance55%

Games3 of 3 landed

Signal quality Medium · Uncertainty band Lean · Not priced
The read
Both players' recent match data shows a tendency for longer matches, with averages above 21.5 games, supporting an over on total games.
- Nijboer's last 15 matches: average 21.9 total games per match
- Den Ouden's last 15 matches: average 22.7 total games per match
- Both players have a high percentage of matches going over 21.5 games in recent clay events
BetBugs · Total GameswonOver 21.5Estimated chance60%
Signal quality Low · Uncertainty band Slight lean · Not priced
The read
Recent first-set data shows both players frequently involved in tight opening sets, making over 9.5 games likely.
- Nijboer's last 5 first sets: average 9.8 games
- Den Ouden's last 5 first sets: average 9.4 games
- Both players have competitive first sets in recent matches, often reaching 10+ games
BetBugs · Set 1 Total GameswonOver 9.5Estimated chance55%
Signal quality Low · Uncertainty band Slight lean · Not priced
The read
Second sets in their recent matches have averaged around 9.5 games, suggesting a competitive set likely to go over.
- Nijboer's last 5 second sets: average 9.6 games
- Den Ouden's last 5 second sets: average 9.2 games
- Both players have shown resilience in second sets, often extending them beyond 9.5 games
BetBugs · Set 2 Total GameswonOver 9.5Estimated chance55%

Sets0 of 2 landed

Signal quality Medium · Uncertainty band Slight lean · Not priced
The read
With both players showing a tendency for three-set matches and strong deciding-set records, this quarterfinal is likely to go the distance.
- Nijboer's last 15 matches: 3-set matches in 6 of 15 (40%)
- Den Ouden's last 15 matches: 3-set matches in 7 of 15 (47%)
- Both players have a high deciding-set win rate (Nijboer 46%, Den Ouden 58%)
BetBugs · Total SetslostOver 2.5Estimated chance55%
Signal quality Low · Uncertainty band Slight lean · Not priced
The read
Nijboer's strong first-set record in recent matches and high career conversion rate suggest a slight advantage in the opening set.
- Nijboer's first-set win conversion career: 83%, Den Ouden's: 89%
- Nijboer's last 5 matches: won first set in 4 of 5
- Den Ouden's last 5 clay matches: won first set in 3 of 5
BetBugs · Set 1 WinnerlostRyan NijboerEstimated chance52%

Match stats0 of 0 landed

Signal quality Low · Uncertainty band Near coin-flip · Not priced
The read
The combined ace averages of both players hover around 5.5, and a longer match could push the total over this line.
- Nijboer's last 15 matches: 2.5 aces per match
- Den Ouden's last 15 matches: 2.7 aces per match
- Combined average aces per match: 5.2, with potential for more in a three-setter
BetBugs · Total AcesOver 5.5Estimated chance50%
Signal quality Low · Uncertainty band Near coin-flip · Not priced
The read
Both players average around 2.5-3 double faults per match, making over 5.5 a reasonable expectation in a competitive match.
- Nijboer's last 15 matches: 2.9 double faults per match
- Den Ouden's last 15 matches: 2.6 double faults per match
- Combined average double faults per match: 5.5, with potential for more under pressure
BetBugs · Total Double FaultsOver 5.5Estimated chance50%

Markets to Avoid

High-risk markets where price or context leaves too little cushion.

Pre-match flagged 3 avoid-market areas; caution remains warranted in high-variance spots.

Head-to-Head

0-1 (1 meetings)

L6-1 6-2Ryan Nijboer#488vGuy Den Ouden#231Jul 7, 2023

1 total meetings

Ryan Nijboer

11W 4L

6-2 6-3#453Niels Visker

4-6 6-2 6-3#414Mika Brunold

7-6(5) 6-3#394Dimitar Kuzmanov

6-4 6-4#675Amit Vales

6-3 6-1#199Kimmer Coppejans

6-2 6-1#713Kasra Rahmani

3-6 6-4 6-1#761Maxence Bertimon

4-6 7-6(3) 7-5#312Jonas Forejtek

6-2 7-6(6)#585Izan Almazan Valiente

6-2 6-2#743Michiel De Krom

6-0 7-6(4)#687Oscar Jose Gutierrez

6-4 6-7(8) 6-3#887Pavlos Tsitsipas

6-4 6-3—Mikel Martinez

6-2 4-6 6-3#581Marcel Zielinski

6-2 6-2#205Daniel Rincon

Guy Den Ouden

8W 7L

4-6 6-3 6-2#256Hynek Barton

6-3 6-0#445Denis Yevseyev

6-3 6-3#199Kimmer Coppejans

2-6 6-2 6-3#783Federico Coria

6-2 6-2#604Tsung-Hao Huang

6-4 6-4#236Yi Zhou

6-3 5-7 6-2#377Anton Matusevich

4-6 6-2 6-4#91Emilio Nava

6-3 6-7(4) 6-0#254Matej Dodig

6-2 6-1#246Pavel Kotov

6-7(3) 6-3 6-2#114Dalibor Svrcina

6-4 6-4#302Dali Blanch

6-2 6-3#243Dan Added

6-4 6-4#192August Holmgren

4-6 7-6(5) 6-3#224Juan Pablo Ficovich

Stat Battle

Last 15 match performance, compared side by side.

RNRyan NijboerNijboer

Last 15

6–2

9 core stats · 1 even

Guy Den OudenOudenGO

Ryan Nijboer carries the stronger recent form — Guy Den Ouden's route runs through serve.

Serve · 2–2 · 1 even

1st Serve In64.3%+1.0pp63.3%

1st Serve Won67.0%+2.1pp64.9%

2nd Serve Won50.8%+1.1pp51.9%

Aces / Match2.5—2.7

Double Faults / Match2.90.3 fewer2.6

Return · 1–0

Return Pts Won43.8%+1.3pp42.5%

Pressure · 2–0

Break Pts Converted44.1%+1.7pp42.4%

Break Pts Saved64.8%+7.0pp57.8%

Points · 1–0

Total Pts Won52.4%+1.2pp51.2%

Serve · 2–2 · 1 even

64.3%1st Serve In+1.0pp63.3%

67.0%1st Serve Won+2.1pp64.9%

50.8%2nd Serve Won+1.1pp51.9%

2.5Aces / Match—2.7

2.9Double Faults / Match0.3 fewer2.6

Return · 1–0

43.8%Return Pts Won+1.3pp42.5%

Pressure · 2–0

44.1%Break Pts Converted+1.7pp42.4%

64.8%Break Pts Saved+7.0pp57.8%

Points · 1–0

52.4%Total Pts Won+1.2pp51.2%