Platform Tennis Index

What is the Platform Tennis Index?
New rating system adopted by the APTA for leagues

The APTA has teamed up with league website Paddlescores.com to offer Platform Tennis Index (PTI), a new feature for all APTA members who play in APTA leagues. League administrators, team captains, tournament directors, and teaching pros will find the PTI to be a valuable tool for the sport.

How does the APTA/Paddlescores Platform Tennis Index (PTI) Rating System work?

What is it, and what does it mean? A player’s PTI is a number generally ranging from 0 to 80. Similar to a golf handicap, better players have a lower PTI.

  • An 80 represents a player who has never played paddle before and who has very little experience playing any other racquet sports.
  • A 0 represents a highly skilled player who can compete at the national level.
  • It is possible to have a negative PTI.

How do players get an initial PTI?

There are several options to set a player’s initial Rating:

  1. Use match data from prior seasons.
  2. Use a default PTI based on a player’s division/ line number for his/her first match
  3. Have a pro or team captain assign an initial PTI (done through league commissioner)
  4. Play in an APTA Live Scoring or Paddlescores hosted tournament (PTI will be assigned by Tournament Director)

How does a PTI adjust?

PTIs are dynamic, and adjust after match results are posted. The PTI algorithm uses the match outcome (win/loss, and games won) and the relative strength of the teams to determine the adjustment. Winning/losing the match is the most important factor in determining a PTI change.

For example:
Player A (a 20 PTI) and Player B (28 PTI) have a match versus Player C (24 PTI) and Player D (30 PTI). Team A/B has a combined PTI of 48 vs. Team C/D’s of 54. Team A/B has a lower PTI and is favored to win the match.

If Team A/B wins, this is the expected outcome. PTIs for A and B will decline a small amount; PTIs for C and D will increase by the opposite amount.

On the other hand, if Team C/D wins, this is an upset! PTIs for C and D will decline by a more significant amount while PTIs for A and B increase.

Large changes in PTI are achieved through upsets or lopsided victories between closely-matched teams. A heavily-favored team cannot improve its PTI by feasting on weak opponents.

Confidence Factor:

Starting with the 2019-2020 season, the league is incorporating a Confidence Factor into the Paddle Tennis Index algorithm. This innovation provides another dimension to further improve the adjustment of a player’s Paddle Tennis Index.

Confidence Factor ranges from 0% to 100%, and increases with each match played. A player reaches full confidence (100%) at eight matches played.

For a posted match result, players with lower Confidence Factors will have less of an impact on the Paddle Tennis Index of players with higher Confidence Factors. At the same time, the ratings of lower Confidence Factor players will adjust faster than others. This allows players to reach an appropriate Paddle Tennis Index more quickly.

Adjusting a Player’s Paddle Tennis Index or Confidence Factor

Once a player’s initial Paddle Tennis Index has been set, it can be altered only by the APTA PTI Committee. A player or league commissioner may petition the Committee in writing to propose a more accurate initial Index.

The Confidence Factor may be altered at the league level by a League Commissioner or League PTI Committee. Reasons to alter a player’s Confidence Factor include significant injuries; long absences (multiple months or years) from the game; a strong tennis player who is “figuring out” paddle and rapidly improving skill.

APTA PTI National Championships

This coming season, the APTA is launching a series of Men's National Championships for players of every skill level. Eligibility for each of these new tournaments will be based on a player's Platform Tennis Index (PTI). (See the preliminary schedule below the Q & A.)

Q: Why just Men's tournaments?

We plan to launch the same set of tournaments for women as soon as we have more women's leagues using the PTI system.

Q: How do these tournaments fit in with "B" Nationals?

These tournaments will replace "B" Nationals for men. The top players in "B" Nationals the past few years will likely find the PTI 10+ Nationals as a similar skill level event. Women will keep the "B" and "C" Nationals tournaments for this coming season.

Q: How does eligibility for these tournaments work?

Each individual's PTI must be at or above the designated tournament's # in order to be eligible. Example: in order to be eligible to play in the APTA PTI 25+ Nationals, both players must have PTIs of 25+.

Q: Can I play in more than one PTI Nationals?

Yes - as long as your PTI makes you eligible, you can enter more than one.

Q: Will the PTI Nationals be located in the same city every year?

No, the plan is to have each PTI level tourney rotate to a different region every season (similar to the main National Championship).

Q: What will the format of the PTI Nationals be?

Most of these tournaments will be one day events with a max draw of 32 teams. 3rd set super tie-breakers and double deuce scoring (similar to Team Nationals) will be used to insure getting the event done in one day. The Semis & Finals of each event will be held at the main hosting site with dinner/beverages served for all participants to enjoy.

Q: How does Team Nationals fit in with these tournaments?

These APTA PTI Nationals are being scheduled to take place the three weeks between the APTA Men's & Women's Nationals (in Darien) and the APTA Team Nationals in early April. The plan is to have the APTA Team Nationals in Chicago again this year... and to use PTIs to determine the different levels of play for the Men's divisions.

APTA PTI National Championships Preliminary Dates & Sites

APTA PTI 5+ Nationals -- Saturday, March 6-8 -- Darien, CT
APTA PTI 10+ Nationals -- Saturday, March 14th -- New Jersey
APTA PTI 15+ Nationals -- Saturday, March 21st -- Pittsburgh
APTA PTI 20+ Nationals -- Saturday, March 28th -- Boston
APTA PTI 25+ Nationals -- Saturday, March 14th -- Denver
APTA PTI 30+ Nationals -- Saturday, March 21st -- Philadelphia
APTA PTI 35+ Nationals -- Saturday, March 28th -- Scituate, MA
APTA PTI 40+ Nationals -- Saturday, March 28th -- Baltimore
APTA PTI 45+ Nationals -- Saturday, March 21st -- Charlotte, NC 
APTA PTI 50+ Nationals -- Saturday, March 14th -- Long Island

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