John Mastrosimone v Lance Koss, head to head

JMJohn MastrosimoneRated 1,444
Won
0-1
1 meeting since 5 Sep 2026
Lance KossRated 1,525usLK
Legs
1 - 3
25% to Mastrosimone
Average when they meet
45.12 - 58.08
Mastrosimone higher in 0 of 1
Finals
0 - 0
never met in a final
Last meeting
1-3
5 Sep 2026, Koss
v

Every meeting, oldest to newest

Each square is one match: Mastrosimone Koss

All 1 meeting

Newest first, with both averages
DateEventMastrosimoneScoreKoss
5 Sep 2026WADA Washington Area Open MenLast 128 45.121-358.08 Match

By stage

Finals
Semi-finals
Quarter-finals
Earlier rounds
0-1

Bars show Mastrosimone's share at each stage.

Close ones

Won by one or two1Mastrosimone 0, Koss 1
Biggest win, MastrosimoneHas not beaten him yet
Biggest win, Koss3-1WADA Washington Area Open Men, Sep 2026
Highest average58.08Koss, WADA Washington Area Open Men, Sep 2026

Every rivalry, in your own code

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