GuidesRelease Log
Coverage MatrixDocumentationChange LogLog InContact Us
Release Log

MLB API - League Leader Qualifier Flags

We’ve added indicators signifying league leader eligibility for players in our MLB API.

Use the Player Profile or Seasonal Statistics endpoints to determine a player's eligibility for the following:

  • Hitting League Leaders for MLB, American League, and National League
  • Pitching League Leaders for MLB, American League, and National League
<player preferred_name="Geraldo" first_name="Geraldo" last_name="Perdomo" jersey_number="2" id="ad64c80d-35f2-4d73-a027-d10362eef962" full_name="Geraldo Perdomo" status="A" position="IF" primary_position="SS">
              <qualifiers>
                  <hitting AL="false" MLB="true" NL="true"/>
                  <pitching AL="false" MLB="false" NL="false"/>
              </qualifiers>

Benefit

With this update, you can easily determine whether a hitter or pitcher has enough appearances in a season to qualify as a statistical league leader. Keep tabs on these boolean values during the season as players become eligible or lose their eligibility.

League Leader Eligibility is defined as:

  • Batter Qualifier - 3.1 Plate Appearances (PA) per team game
  • Pitcher Qualifier - 1.0 Innings Pitched (IP) per team game

☑️ Sample Requests:

  • Player Profile - https://api.sportradar.com/mlb/trial/v8/en/ players/80de60c9-74e3-4a50-b128-b3dc7456a254/profile.json
  • Seasonal Statistics - https://api.sportradar.com/mlb/trial/v8/en/ seasons/2025/reg/teams/25507be1-6a68-4267-bd82-e097d94b359b/statistics.json

🔢 Versions


🔁 Endpoints Affected


⚙️ Return Samples

<player xmlns="http://feed.elasticstats.com/schema/baseball/v8/profile.xsd" id="80de60c9-74e3-4a50-b128-b3dc7456a254" status="A" position="P" primary_position="DH" first_name="Shohei" last_name="Ohtani" preferred_name="Shohei" jersey_number="17" full_name="Shohei Ohtani" height="75" weight="210" throw_hand="R" bat_hand="L" high_school="Hanamaki Higashi (JPN)" birthdate="1994-07-05" birthcountry="JPN" birthcity="Oshu" pro_debut="2018-03-29" updated="2025-08-21T17:29:09+00:00" is_wbc_only="false" salary="28216944" rookie_year="2018" reference="660271">
    <team name="Dodgers" market="Los Angeles" abbr="LAD" id="ef64da7f-cfaf-4300-87b0-9313386b977c"/>
    <seasons>
--snip--
        <season id="f5aa580e-8103-4ff5-beb0-965dbe8a8cf1" year="2022" type="REG">
            <qualifiers>
                <hitting AL="true" MLB="true" NL="false"/>
                <pitching AL="true" MLB="true" NL="false"/>
            </qualifiers>
            <totals>
                <statistics>
                    <hitting>
                        <overall ab="586" lob="196" rbi="95" abhr="17.235" abk="3.64" bip="394" babip="0.32" bbk="0.447" bbpa="0.108" iso="0.246" obp="0.356" ops="0.875" seca="0.372" slg="0.519" xbh="70" pitch_count="2546" lob_risp_2out="28" team_lob="69" ab_risp="102" hit_risp="32" rbi_2out="24" linedrive="101" groundball="184" popup="14" flyball="129" ap="666" avg=".273" gofo="1.08">
                            <onbase s="90" d="30" t="6" hr="34" tb="304" bb="58" ibb="14" hbp="5" fc="14" roe="4" h="160" ci="0" rov="0" cycle="0"/>
                            <runs total="90"/>
                            <outcome klook="346" kswing="353" ktotal="699" ball="919" iball="0" dirtball="58" foul="473"/>
                            <outs po="14" fo="81" fidp="0" lo="37" lidp="2" go="136" gidp="6" klook="40" kswing="121" ktotal="161" sacfly="3" sachit="0"/>
                            <steal caught="9" stolen="11" pct="0.55" pickoff="2"/>
                            <pitches count="2546" btotal="946" ktotal="1600"/>
                            <games start="153" play="157" finish="3" complete="147"/>
                        </overall>
                    </hitting>
{
          "preferred_name": "Geraldo",
          "first_name": "Geraldo",
          "last_name": "Perdomo",
          "jersey_number": "2",
          "id": "ad64c80d-35f2-4d73-a027-d10362eef962",
          "full_name": "Geraldo Perdomo",
          "status": "A",
          "position": "IF",
          "primary_position": "SS",
          "qualifiers": {
              "hitting": {
                  "AL": false,
                  "MLB": true,
                  "NL": true
                },
              "pitching": {
                  "AL": false,
                  "MLB": false,
                  "NL": false
                }
            },
          "statistics": {
              "hitting": {
                  "overall": {
                      "ab": 597,
                      "lob": 214,
                      "rbi": 100,
                      "abhr": 29.85,
                      "abk": 7.193,
                      "bip": 505,
                      "babip": 0.303,
                      "bbk": 1.133,
                      "bbpa": 0.131,
                      "iso": 0.172,
                      "obp": 0.389,
                      "ops": 0.851,
                      "seca": 0.365,
                      "slg": 0.462,
                      "xbh": 58,
                      "pitch_count": 3007,
                      "lob_risp_2out": 50,
                      "team_lob": 107,
                      "ab_risp": 154,
                      "hit_risp": 51,
                      "rbi_2out": 35,
                      "linedrive": 136,
                      "groundball": 212,
                      "popup": 44,
                      "flyball": 141,
                      "ap": 720,
                      "avg": ".290",
                      "gofo": 0.92,
                      "woba": 0.36989,
                      "wraa": 33.2241,
                      "war": 7.07672,
                      "bwar": 32.4166,
                      "fwar": 1.70123,
                      "brwar": 3.76185,
                      "wgdp": 0,
                      "wrc": 118.298,
                      "wrc_plus": 137.988,
                      "onbase": {
                          "s": 115,
                          "d": 33,
                          "t": 5,
                          "hr": 20,
                          "tb": 276,
                          "bb": 93,
                          "ibb": 1,
                          "hbp": 10,
                          "fc": 9,
                          "roe": 4,
                          "h": 173,
                          "ci": 0,
                          "rov": 0,
                          "cycle": 0
                        },
                      "runs": {
                          "total": 98
                        },
                      "outcome": {
                          "klook": 642,
                          "kswing": 143,
                          "ktotal": 785,
                          "ball": 1110,
                          "iball": 0,
                          "dirtball": 50,
                          "foul": 519
                        },
                      "outs": {
                          "po": 42,
                          "fo": 107,
                          "fidp": 1,
                          "lo": 44,
                          "lidp": 0,
                          "go": 167,
                          "gidp": 11,
                          "klook": 28,
                          "kswing": 55,
                          "ktotal": 83,
                          "sacfly": 11,
                          "sachit": 8
                        },
                      "steal": {
                          "caught": 6,
                          "stolen": 27,
                          "pct": 0.818,
                          "pickoff": 3
                        },
                      "pitches": {
                          "count": 3007,
                          "btotal": 1170,
                          "ktotal": 1837
                        },
                      "games": {
                          "start": 160,
                          "play": 161,
                          "finish": 1,
                          "complete": 158
                        }
                    }
                },