Surface:
Hard
Round:
Quarterfinal
Rei Sakamoto
JPN
ATP - 125
20
:
47
:
04
Billy Harris
GBR
ATP - 252

Sakamoto vs Harris Prediction 30 October 2026

Details
Key points

    🎾 Rei Sakamoto and Billy Harris meet in the quarter-finals of the Seoul Challenger. Both players produce their best tennis on hard courts, which may influence how the match unfolds. The game distribution looks set to make this an interesting contest.

    Head-to-Head

    Rei Sakamoto and Billy Harris have not previously met on tour.

    Rei Sakamoto Player Overview

    Rei Sakamoto arrives at this match in good form, having won eight of his last 10 matches. In two matches at the tournament he has beaten Kasidith Samrej and Zhizhen Zhang. He holds serve comfortably - winning 80% of his service games, with a first-serve percentage of 68%.

    Also worth noting is his high set-winning rate (73%) and a tendency to win without dropping a set - six of his last 10 matches ended 2-0. However, his winning margins in games are not always large: even in victories the difference is often narrow, which affects the case for backing him on a negative games handicap against comparable opponents.

    Match Results: Rei Sakamoto

    28.10.26
    Challenger Seoul
    Zhizhen Zhang
    Zhizhen Zhang
    Rei Sakamoto
    Rei Sakamoto
    0
    2
    0
    6
    4
    6
    W
    26.10.26
    Challenger Seoul
    Rei Sakamoto
    Rei Sakamoto
    Kasidit Samrej
    Kasidit Samrej
    2
    0
    6
    3
    6
    4
    W
    20.10.26
    ATP Almaty, Kazakhstan Men Singles
    Rei Sakamoto
    Rei Sakamoto
    Karen Khachanov
    Karen Khachanov
    0
    2
    2
    6
    4
    6
    L
    18.10.26
    ATP Almaty, Kazakhstan Men Singles
    Gabriel Diallo
    Gabriel Diallo
    Rei Sakamoto
    Rei Sakamoto
    1
    2
    6
    2
    4
    6
    4
    6
    W
    17.10.26
    ATP Almaty, Kazakhstan Men Singles
    Amir Omarkhanov
    Amir Omarkhanov
    Rei Sakamoto
    Rei Sakamoto
    0
    2
    2
    6
    1
    6
    W
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    Billy Harris Player Overview

    Billy Harris is going through an inconsistent spell - just four wins from his last ten matches. That said, he has covered the +3.5 games handicap in 13 consecutive matches. In the two previous rounds of the tournament he beat Changjun Kim and Alexander Vukic.

    Despite a modest first-serve percentage of 61% and a service games won rate of 70%, Harris consistently wins more than 10 games per match even in defeat, and his matches tend to go long - averaging 26.5 games per match. That makes a large margin in the final score relatively uncommon.

    Match Results: Billy Harris

    28.10.26
    Challenger Seoul
    Billy Harris
    Billy Harris
    Aleksandar Vukic
    Aleksandar Vukic
    2
    0
    6
    2
    6
    4
    W
    26.10.26
    Challenger Seoul
    Jangjun Kim
    Jangjun Kim
    Billy Harris
    Billy Harris
    0
    2
    62
    77
    2
    6
    W
    14.10.26
    ATP Challenger Roanne, France, Men Singles
    Matisse Bobichon
    Matisse Bobichon
    Billy Harris
    Billy Harris
    2
    0
    7
    5
    77
    65
    L
    05.10.26
    SHA
    Billy Harris
    Billy Harris
    Dalibor Svrcina
    Dalibor Svrcina
    1
    2
    6
    4
    66
    78
    5
    7
    L
    29.09.26
    France Mouilleron-Le-Captif, ATP Challenger Men Singles
    Billy Harris
    Billy Harris
    Felix Balshaw
    Felix Balshaw
    1
    2
    66
    78
    6
    3
    63
    77
    L
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    Key factors

    • Billy Harris has covered the +3.5 games handicap in 13 consecutive matches.
    • In his last 10 matches, Billy Harris has won at least 10 games even in defeats.
    • The average number of games in matches involving Billy Harris is 26.5, pointing to extended sets.
    • Rei Sakamoto wins often, but not always by a wide margin in games.
    • Billy Harris's sets and games statistics suggest competitive play in each set.

    Expected scenario

    A tight match is expected, with neither player holding a significant edge: both tend to play long sets, and the game margins are usually small regardless of the result. That pattern fits well with a positive handicap on Billy Harris - he is capable of making it competitive in every set and holding the line even against the favourite.

    Total Games Prediction

    Total Games - Over 20.5 has landed in 12 of Billy Harris's last 13 matches. Matches involving the British player frequently feature a high game count - both players are capable of holding serve and pushing sets to extended scores. This further supports a competitive, closely contested scenario and adds weight to a positive handicap for Harris.

    ⭐ Editor's Pick

    Rei Sakamoto's confidence in his matches is combined with the fact that his margin of victory is rarely dominant even against lower-ranked opponents. Billy Harris has a consistent record of covering positive handicaps, backed by a run of 13 such matches in a row, and the quarter-final format tends to produce competitive sets with few large game margins. The pick is Billy Harris - Games Handicap +3.5.
    Billy Harris Handicap (+3,5)
    Odds+111
    Published: 29/10/2026, 02:27
    Konstantin Brestov
    Konstantin Brestov
    Scores24 Editor. I dream of watching Cristiano Ronaldo play live.
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    114 predictions
    Statistics for October 2026

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    Betting Tips: Rei Sakamoto - Billy Harris

    Billy Harris has won over 10.5 games:
    billy-harrisin 12 of last 13 matches.
    Billy Harris Total Over (10,5)
    Thunderpick
    +102
    Over 20.5 games:
    billy-harrisin 12 of last 13 Billy Harris games.
    Total Over (20,5)
    Thunderpick
    -159
    Under 2.5 sets:
    sakamoto-rei-1in 7 of last 8 Rei Sakamoto games.
    Sets Total Under (2,5)
    Thunderpick
    -222
    Rei Sakamoto has won under 12.5 games:
    sakamoto-rei-1in 6 of last 7 matches.
    Rei Sakamoto Total Under (12,5)
    Thunderpick
    +101
    View more facts