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Dennis Sieren

Columbus, WI
4.0C year-end 2025
i
Computer — generated by the USTA algorithm from match play
133 matches · 55W–78L · seasons 2019–2026

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Match history133 matches
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
expectation pending — we’re still fetching an opponent’s record
6-4, 6-2
L
2026-08-20 · WI Adult 55&O 8.0M MALT Dahl · #1 Doubles · 8.0 · with David Seiler
expectation pending — we’re still fetching an opponent’s record
4-6, 7-6, 0-1
L
Enes Akyuz / Andrew Liu
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
expectation pending — we’re still fetching an opponent’s record
7-6, 6-4
L
2026-07-22 · WI Adult 18&O 4.0M MALT Pohle · #3 Doubles · 4.0 · with Elliot Nelson
expectation pending — we’re still fetching an opponent’s record
3-6, 3-6
W
Nicholas Rusch / Samto Wongso
2026-07-07 · WI Adult 18&O 4.0M MALT Pohle · #3 Doubles · 4.0 · with James Dahl
expectation pending — we’re still fetching an opponent’s record
6-4, 6-0
L
Kevin Rodriguez
2026-07-01 · WI Adult 18&O 4.0M MALT Pohle · #2 Singles · 4.0
expectation pending — we’re still fetching an opponent’s record
3-6, 6-4, 0-1
L
Hayden Lohrentz / Ethan Uhlmann
2026-06-29 · WI Adult 18&O 4.0M MALT Pohle · #1 Doubles · 4.0 · with Ryan Pohle
expectation pending — we’re still fetching an opponent’s record
3-6, 7-6, 0-1
W
Robert Porter / Rob Penfield
2026-06-18 · WI Adult 55&O 8.0M MALT Dahl · #3 Doubles · 8.0 · with Felipe Teixeira
expectation pending — we’re still fetching an opponent’s record
6-0, 6-2
W
Greg Biettler / Joseph King
2026-06-11 · WI Adult 55&O 8.0M MALT Dahl · #2 Doubles · 8.0 · with Felipe Teixeira
expectation pending — we’re still fetching an opponent’s record
6-3, 6-3
Where you rank locallyagainst everyone at your level
Teams19 teams · 2021–2026
Over timerating by season, and how you rank
By level4 levels played
4.0
59.6%
34W–23L · 57.2% of games
4.5
28.1%
9W–23L · 41.1% of games
8.0
80%
4W–1L · 61.9% of games
8.5
20.5%
8W–31L · 37% of games

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

By lineusually #3 Doubles, 33% of the time
#3 Doubles
33%
44 matches
#2 Doubles
27%
36 matches
#1 Doubles
22%
29 matches
#1 Singles
10%
13 matches
#2 Singles
8%
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