Home > Sport Bowling Home > Average Adjustment Chart

Sport Bowling conditions are more challenging than typical league conditions. Therefore, bowler averages under Sport Bowling conditions typically will be lower. We have confirmed this through the analysis of scores from Sport Bowling leagues and tournaments. In an effort to equalize competition during standard tournaments, the following adjustment scale has been created for bowlers only having a Sport Bowling average. The adjustment scale is to be used under the following conditions:
  • The scale applies to Sport Bowlers who ONLY have a Sport Bowling average.
  • If a bowler has an established standard average, that average shall be used for standard tournaments.
  • This adjustment scale is not considered a “re-rate” of the bowler. Its purpose is to allow for a fair adjustment to what would be expected of the bowler on a standard league condition.
  • The adjustment scale does not supersede the ability of a tournament director to further adjust upward any bowler’s entering average in a tournament per Rule 319.

AVERAGE ADJUSTMENT SCALE | Click here for a pdf version

Sport League Average

Adjusted Average

Sport League Average

Adjusted Average

Sport League Average

Adjusted Average

0-100

+10 pins 

144

168 

188

214 

101

112 

145

169 

189

215 

102

113 

146

170 

190

215 

103

114 

147

172 

191

216 

104

116 

148

173 

192

216 

105

117 

149

174 

193

217 

106

118 

150

176 

193

217 

107

120 

151

177 

194

218 

108

121 

152

178 

195

219 

109

122 

153

179 

196

220 

110

124 

154

180 

197

221 

111

125 

155

181 

198

221 

112

126 

156

182 

199

221 

113

128 

157

184 

200

221 

114

129 

158

185 

201

222 

115

130 

159

186 

202

222 

116

131 

160

188 

203

223 

117

132 

161

189 

204

223 

118

133 

162

190 

205

224 

119

135 

163

191 

206

225 

120

136 

164

192 

207

225 

121

137 

165

193 

208

226 

122

139 

166

194 

209

226 

123

140 

167

195 

210

226 

124

141 

168

196 

211

226 

125

142 

169

197 

212

226 

126

143 

170

198 

213

226 

127

144 

171

199 

214

226 

128

146 

172

200 

215

227 

129

147 

173

201 

216

227 

130

149 

174

202 

217

227 

131

150 

175

203 

218

227 

132

151 

176

204 

219

227 

133

153 

177

205 

220

227 

134

154 

178

206 

221

228 

135

155 

179

207 

222

228 

136

157 

180

207 

223

228 

137

158 

181

208 

224

228 

138

160 

182

209 

225

228 

139

161 

183

210 

226

228 

140

163 

184

211 

227

228 

141

164 

185

212 

228+

same 

142

166 

186

213 

 

 

143

167 

187

214 

 

 

United States Bowling Congress | 621 Six Flags Drive | Arlington, Texas 76011 | 800-514-BOWL.