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Dennis Sieren

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Columbus, WI
4.0C year-end 2025
i
Computer — generated by the USTA algorithm from match play
157 matches · 68W–89L · seasons 2019–2026
Match history157 matches
L
2026-11-01 · WI Combo Mixed 7.5 MALT Bergamini · #3 Doubles · 7.5 · with Molly Moritz
loading the estimate
2-6, 1-6
W
2026-10-25 · WI Combo Mixed 7.5 MALT Bergamini · #1 Doubles · 7.5 · with Danielle Kamps
loading the estimate
6-4, 7-6
L
2026-10-04 · WI Combo Mixed 7.5 MALT Bergamini · #3 Doubles · 7.5 · with Molly Moritz
loading the estimate
7-5, 2-6, 0-1
W
Default
2026-09-22 · WI Combo 8.5M MALT Heiliger · #3 Doubles · 8.5 · with Marques Degrandis
doesn’t count toward your NTRP rating
6-0, 6-0
L
2026-09-19 · WI Adult 55&O 8.0M MALT Dahl · #3 Doubles · 8.0 · with David Seiler championship
loading the estimate
5-7, 2-6
L
2026-09-08 · WI Combo 8.5M MALT Heiliger · #3 Doubles · 8.5 · with Daniel Heiliger
doesn’t count toward your NTRP rating
4-6, 2-6
W
2026-08-27 · WI Adult 55&O 8.0M MALT Dahl · #1 Doubles · 8.0 · with David Seiler
loading the estimate
6-4, 6-2
L
2026-08-20 · WI Adult 55&O 8.0M MALT Dahl · #1 Doubles · 8.0 · with David Seiler
loading the estimate
4-6, 7-6, 0-1
L
2026-08-18 · WI Combo 8.5M MALT Heiliger · #3 Doubles · 8.5 · with Joseph Hahn
doesn’t count toward your NTRP rating
2-6, 1-6
L
2026-08-11 · WI Combo 8.5M MALT Heiliger · #2 Doubles · 8.5 · with Marques Degrandis
doesn’t count toward your NTRP rating
5-7, 2-6
W
2026-08-06 · WI Adult 55&O 8.0M MALT Dahl · #1 Doubles · 8.0 · with Marques Degrandis
loading the estimate
7-6, 6-4
L
2026-07-22 · WI Adult 18&O 4.0M MALT Pohle · #3 Doubles · 4.0 · with Elliot Nelson
loading the estimate
3-6, 3-6
Where you rank locallyagainst everyone at your level
Teams27 teams · 2019–2026
Over timerating by season, and how you rank
By level5 levels played
4.0
62.5%
40W–24L · 57.3% of games
4.5
25%
9W–27L · 39.7% of games
7.5
1W–2L
not enough matches yet
8.0
66.7%
4W–2L · 57.3% of games
8.5
29.2%
14W–34L · 40.6% of games

Games won matters more than matches won — NTRP adjusts on margins.

By lineusually #3 Doubles, 33% of the time
#3 Doubles
33%
51 matches
#2 Doubles
28%
44 matches
#1 Doubles
24%
38 matches
#1 Singles
8%
13 matches
#2 Singles
7%
11 matches

How often, across every team and every match we hold — including ones that do not count toward a rating. Advanced stats has a court-position table too, and it answers a different question: how well you do there, over matches that count. A team’s own page shows how that one team uses you.

Not affiliated with or endorsed by the USTA. Ratings labelled as published are USTA year-end figures; anything we describe as an estimate is ours, not USTA’s. Match data is from USTA TennisLink.

The mark of great sportsmen is not how good they are at their best, but how good they are at their worst.
Martina Navratilova