diff --git a/apps/web/src/oj/classroom/board.vue b/apps/web/src/oj/classroom/board.vue
index c6f249b..9267b47 100644
--- a/apps/web/src/oj/classroom/board.vue
+++ b/apps/web/src/oj/classroom/board.vue
@@ -1,5 +1,6 @@
 <script setup lang="ts">
 import { getClassBoard, setClassLesson } from "oj/api"
+import UserName from "shared/components/UserName.vue"
 import { useLeaveStudents } from "shared/composables/leaveStudents"
 import { useCollabStore } from "shared/store/collab"
 import { useConfigStore } from "shared/store/config"
@@ -159,8 +160,9 @@ const GROUP_ORDER: Record<Group, number> = {
   leave: 5,
 }
 
+/** 名字和别处一样用用户名（ks241XXX），不用真名 */
 function nameOf(student: ClassBoardStudent) {
-  return student.realName || student.username
+  return student.username
 }
 
 /**
@@ -491,9 +493,9 @@ function submissionsHref(
                         target="_blank"
                         :title="`看 ${nameOf(student)} 今天交的全部`"
                       >
-                        {{ nameOf(student) }}
+                        <UserName :username="student.username" />
                       </a>
-                      <template v-else>{{ nameOf(student) }}</template>
+                      <UserName v-else :username="student.username" />
                     </td>
                     <td>
                       <n-tag
diff --git a/apps/web/src/oj/contest/components/RankMini.vue b/apps/web/src/oj/contest/components/RankMini.vue
index 7f87978..63855bd 100644
--- a/apps/web/src/oj/contest/components/RankMini.vue
+++ b/apps/web/src/oj/contest/components/RankMini.vue
@@ -3,7 +3,7 @@ import type { ContestScoreRow } from "@oj2/contract"
 import { useThemeVars } from "naive-ui"
 import { useTone } from "oj/submission/composables/tone"
 import { secondsToDuration } from "utils/functions"
-import UserName from "./UserName.vue"
+import UserName from "shared/components/UserName.vue"
 
 /**
  * 题目页右边的小榜：前三名，然后是我和我前后各两个人（中间隔一个「⋯」）。
@@ -42,12 +42,7 @@ function move(row: ContestScoreRow) {
             ><span class="down">↓{{ -move(row) }}</span></template
           >
         </span>
-        <UserName
-          class="who"
-          :username="row.username"
-          :class-name="row.className"
-          :strong="row.userId === me"
-        />
+        <UserName class="who" :username="row.username" />
         <span class="solved">{{ row.solved }} 道</span>
         <span class="time">{{ secondsToDuration(row.totalTime) }}</span>
       </div>
diff --git a/apps/web/src/oj/contest/pages/class.vue b/apps/web/src/oj/contest/pages/class.vue
index 454a6e6..0f5b13e 100644
--- a/apps/web/src/oj/contest/pages/class.vue
+++ b/apps/web/src/oj/contest/pages/class.vue
@@ -4,6 +4,7 @@ import { useThemeVars } from "naive-ui"
 import { updateACMHelperChecked } from "admin/api"
 import { getContestClassView, getSubmission, getSubmissions } from "oj/api"
 import { useContestStore } from "oj/store/contest"
+import UserName from "shared/components/UserName.vue"
 import { useTone } from "oj/submission/composables/tone"
 import { classLabel } from "oj/submission/utils"
 import { useLeaveStudents } from "shared/composables/leaveStudents"
@@ -14,7 +15,8 @@ import type { Submission } from "utils/types"
 /**
  * 老师的「全班情况」，考完叫「成绩」（设计稿「比赛重设计」老师两块）。学生看不到这一页。
  *
- * 考试中：真名，卡在一道题（错 3 次以上）和 15 分钟以上没交的人放最上面，
+ * 名字和排行榜一样用用户名（ks241XXX），不用真名。
+ * 考试中：卡在一道题（错 3 次以上）和 15 分钟以上没交的人放最上面，
  * 没进来的人在最下面（看板里标了请假的写「请假」）。
  * 考完：按姓名一张表，点格子右边看代码、标「看过了」（代替原来后台的「审核」页），导出成绩。
  * 名单是推出来的：比赛不绑班，来了一半以上的班才算这场的班（后端 buildClassView）
@@ -270,7 +272,6 @@ function exportGrades() {
   const title = contestStore.contest?.title ?? "比赛"
   const head = [
     "用户名",
-    "姓名",
     "班级",
     "做对",
     "名次",
@@ -282,7 +283,6 @@ function exportGrades() {
   for (const row of byUsername) {
     lines.push([
       row.username,
-      row.realName ?? "",
       row.className ? classLabel(row.className) : "",
       String(row.solved),
       String(row.rank ?? ""),
@@ -296,7 +296,6 @@ function exportGrades() {
   for (const user of absent.value) {
     lines.push([
       user.username,
-      user.realName ?? "",
       user.className ? classLabel(user.className) : "",
       user.leave ? "请假" : "没考",
       "",
@@ -323,7 +322,7 @@ const warning = computed(() => tone("warning"))
 const liveColumns = computed(
   () => `116px 44px repeat(${problems.value.length}, minmax(64px, 92px)) 82px 1fr`,
 )
-const gradeColumns = computed(() => `22px 70px 36px 34px repeat(${problems.value.length}, 46px)`)
+const gradeColumns = computed(() => `22px 110px 36px 34px repeat(${problems.value.length}, 46px)`)
 </script>
 
 <template>
@@ -385,10 +384,7 @@ const gradeColumns = computed(() => `22px 70px 36px 34px repeat(${problems.value
           class="tr"
           :style="{ gridTemplateColumns: liveColumns }"
         >
-          <span class="who">
-            <b class="ell">{{ row.realName || row.username }}</b>
-            <span class="ell muted tiny">{{ row.username }}</span>
-          </span>
+          <UserName :username="row.username" />
           <span class="num solved">{{ row.solved }}</span>
           <span v-for="p in problems" :key="p.id" class="lc">
             <template v-if="cellOf(row, p.id)">
@@ -418,10 +414,7 @@ const gradeColumns = computed(() => `22px 70px 36px 34px repeat(${problems.value
         class="tr"
         :style="{ gridTemplateColumns: liveColumns }"
       >
-        <span class="who">
-          <b class="ell">{{ row.realName || row.username }}</b>
-          <span class="ell muted tiny">{{ row.username }}</span>
-        </span>
+        <UserName :username="row.username" />
         <span class="num solved">{{ row.solved }}</span>
         <span v-for="p in problems" :key="p.id" class="lc">
           <template v-if="cellOf(row, p.id)">
@@ -449,10 +442,7 @@ const gradeColumns = computed(() => `22px 70px 36px 34px repeat(${problems.value
           class="tr absent"
           :style="{ gridTemplateColumns: liveColumns }"
         >
-          <span class="who">
-            <span class="ell">{{ user.realName || user.username }}</span>
-            <span class="ell tiny">{{ user.username }}</span>
-          </span>
+          <UserName :username="user.username" muted />
           <span></span>
           <span v-for="p in problems" :key="p.id"></span>
           <span></span>
@@ -510,7 +500,7 @@ const gradeColumns = computed(() => `22px 70px 36px 34px repeat(${problems.value
         <div class="sheet-scroll">
           <div class="tr th" :style="{ gridTemplateColumns: gradeColumns }">
             <span></span>
-            <span>姓名</span>
+            <span>学生</span>
             <span class="num">做对</span>
             <span class="num">名次</span>
             <span v-for="p in problems" :key="p.id" class="ph center" :title="p.title">
@@ -526,7 +516,7 @@ const gradeColumns = computed(() => `22px 70px 36px 34px repeat(${problems.value
             :style="{ gridTemplateColumns: gradeColumns }"
           >
             <span class="muted tiny num">{{ index + 1 }}</span>
-            <b class="ell" :title="row.username">{{ row.realName || row.username }}</b>
+            <UserName :username="row.username" />
             <span class="num solved">{{ row.solved }}</span>
             <span class="num muted tiny">{{ row.rank }}</span>
             <button
@@ -538,7 +528,7 @@ const gradeColumns = computed(() => `22px 70px 36px 34px repeat(${problems.value
                 no: cellOf(row, p.id) && !cellOf(row, p.id)!.isAc,
                 sel: selected?.userId === row.userId && selected.problemId === p.id,
               }"
-              :title="`${row.realName || row.username} · 第 ${p._id} 题`"
+              :title="`${row.username} · 第 ${p._id} 题`"
               @click="pick(row, p.id)"
             >
               <template v-if="cellOf(row, p.id)?.isAc">✓</template>
@@ -554,7 +544,7 @@ const gradeColumns = computed(() => `22px 70px 36px 34px repeat(${problems.value
             :style="{ gridTemplateColumns: gradeColumns }"
           >
             <span></span>
-            <span class="ell">{{ user.realName || user.username }}</span>
+            <UserName :username="user.username" muted />
             <span class="tiny">{{ user.leave ? "请假" : "没考" }}</span>
           </div>
         </div>
@@ -563,7 +553,7 @@ const gradeColumns = computed(() => `22px 70px 36px 34px repeat(${problems.value
       <section class="code-panel">
         <template v-if="selectedRow && selectedProblem">
           <div class="code-head">
-            <b>{{ selectedRow.realName || selectedRow.username }}</b>
+            <UserName :username="selectedRow.username" />
             <span class="muted">·</span>
             <span
               ><span class="muted">{{ selectedProblem._id }}</span>
@@ -735,13 +725,6 @@ const gradeColumns = computed(() => `22px 70px 36px 34px repeat(${problems.value
   font-size: 11px;
 }
 
-.who {
-  display: flex;
-  flex-direction: column;
-  line-height: 16px;
-  min-width: 0;
-}
-
 .solved {
   font-weight: 700;
   padding-right: 10px;
diff --git a/apps/web/src/oj/contest/pages/rank.vue b/apps/web/src/oj/contest/pages/rank.vue
index feb9fc8..37df8a3 100644
--- a/apps/web/src/oj/contest/pages/rank.vue
+++ b/apps/web/src/oj/contest/pages/rank.vue
@@ -7,7 +7,7 @@ import { useUserStore } from "shared/store/user"
 import { ContestStatus } from "utils/constants"
 import { secondsToDuration } from "utils/functions"
 import { classLabel } from "oj/submission/utils"
-import UserName from "../components/UserName.vue"
+import UserName from "shared/components/UserName.vue"
 
 /**
  * 比赛排名（设计稿「比赛重设计」排行榜两块）。竞争感是用户要的（「我需要竞争」）：
@@ -136,12 +136,7 @@ const columns = computed(
             <path d="M8 20h8" />
           </svg>
           <template v-if="podium[place - 1]">
-            <UserName
-              class="podium-name"
-              :username="podium[place - 1]!.username"
-              :class-name="podium[place - 1]!.className"
-              strong
-            />
+            <UserName class="podium-name" :username="podium[place - 1]!.username" />
             <span class="muted small">
               {{ classLabel(podium[place - 1]!.className) }} · {{ podium[place - 1]!.solved }} 道 ·
               {{ secondsToDuration(podium[place - 1]!.totalTime) }}
@@ -220,13 +215,7 @@ const columns = computed(
           <span v-if="move(row) > 0" class="up">↑{{ move(row) }}</span>
           <span v-else-if="move(row) < 0" class="down">↓{{ -move(row) }}</span>
         </span>
-        <UserName
-          class="pad"
-          :username="row.username"
-          :class-name="row.className"
-          :strong="row.userId === meId"
-          :title="row.realName ?? row.username"
-        />
+        <UserName class="pad" :username="row.username" />
         <span class="num solved">{{ row.solved }}</span>
         <span class="num time">{{ secondsToDuration(row.totalTime) }}</span>
         <span v-for="p in problems" :key="p.id" class="cell-wrap">
diff --git a/apps/web/src/oj/problemset/components/ClassView.vue b/apps/web/src/oj/problemset/components/ClassView.vue
index e6ba999..990e0f8 100644
--- a/apps/web/src/oj/problemset/components/ClassView.vue
+++ b/apps/web/src/oj/problemset/components/ClassView.vue
@@ -2,6 +2,7 @@
 import { useThemeVars } from "naive-ui"
 import { getProblemSetClassView } from "oj/api"
 import { useTone } from "oj/submission/composables/tone"
+import UserName from "shared/components/UserName.vue"
 import { parseTime } from "utils/functions"
 import type { ProblemSetClassView } from "utils/types"
 
@@ -60,13 +61,9 @@ const beforeCount = computed(() =>
 )
 
 const columns = computed(
-  () => `22px 72px 44px repeat(${data.value?.problems.length ?? 1}, minmax(72px, 1fr))`,
+  () => `22px 110px 44px repeat(${data.value?.problems.length ?? 1}, minmax(72px, 1fr))`,
 )
 
-function name(student: { realName: string | null; username: string }) {
-  return student.realName || student.username
-}
-
 function cellLink(username: string, problemId: string) {
   return `/submission?username=${encodeURIComponent(username)}&problem=${encodeURIComponent(problemId)}`
 }
@@ -105,8 +102,11 @@ const error = computed(() => tone("error"))
           ><span class="muted">做完</span> <b class="num big">{{ finished }}</b
           ><span class="muted"> 人</span></span
         >
-        <span v-if="absent.length" class="absent ell" :title="absent.map(name).join('、')"
-          >没加入：{{ absent.map(name).join("、") }}</span
+        <span
+          v-if="absent.length"
+          class="absent ell"
+          :title="absent.map((s) => s.username).join('、')"
+          >没加入：{{ absent.map((s) => s.username).join("、") }}</span
         >
         <div class="spacer"></div>
         <span v-if="beforeCount" class="legend-before"
@@ -117,7 +117,7 @@ const error = computed(() => tone("error"))
       <div class="scroll">
         <div class="grid" :style="{ gridTemplateColumns: columns }">
           <div class="head"></div>
-          <div class="head">姓名</div>
+          <div class="head">学生</div>
           <div class="head right">做对</div>
           <div v-for="(p, i) in data.problems" :key="p.id" class="head col" :title="p.title">
             <b class="ell">{{ i + 1 }} {{ p.title }}</b>
@@ -128,8 +128,8 @@ const error = computed(() => tone("error"))
 
           <template v-for="(s, idx) in joined" :key="s.userId">
             <div class="cell muted num tiny">{{ idx + 1 }}</div>
-            <div class="cell ell" :title="s.username">
-              <b>{{ name(s) }}</b>
+            <div class="cell ell">
+              <UserName :username="s.username" />
             </div>
             <div class="cell right num">
               <b>{{ s.completedCount }}</b>
@@ -141,7 +141,7 @@ const error = computed(() => tone("error"))
               target="_blank"
               class="box"
               :class="{ ok: c.solvedTime, bad: !c.solvedTime && c.wrongCount }"
-              :title="`${name(s)} · ${data.problems[i]!.title}${c.solvedBefore ? ' · 加入前就做对过' : ''}`"
+              :title="`${s.username} · ${data.problems[i]!.title}${c.solvedBefore ? ' · 加入前就做对过' : ''}`"
             >
               <template v-if="c.solvedTime"
                 >✓ <span class="num">{{ cellTime(c.solvedTime) }}</span></template
diff --git a/apps/web/src/oj/statistics/components/CodeStats.vue b/apps/web/src/oj/statistics/components/CodeStats.vue
index f5efc45..aee8a43 100644
--- a/apps/web/src/oj/statistics/components/CodeStats.vue
+++ b/apps/web/src/oj/statistics/components/CodeStats.vue
@@ -6,6 +6,7 @@ import { SubmissionStatus } from "utils/constants"
 import { parseTime } from "utils/functions"
 import StatusPill from "oj/submission/components/StatusPill.vue"
 import { useTone } from "oj/submission/composables/tone"
+import UserName from "shared/components/UserName.vue"
 import AttemptSquares from "./AttemptSquares.vue"
 
 /**
@@ -42,7 +43,6 @@ function isPending(result: number) {
 
 interface Student {
   username: string
-  name: string
   /** 题号 → 这道题上的每一次，从早到晚 */
   byProblem: Map<string, Attempt[]>
   total: number
@@ -63,7 +63,6 @@ const students = computed<Student[]>(() => {
     }
     return {
       username: row.username,
-      name: row.realName || row.username,
       byProblem,
       total: row.submissions.length,
       accepted: row.submissions.filter((item) => isAc(item.result)).length,
@@ -76,7 +75,6 @@ const students = computed<Student[]>(() => {
     if (seen.has(row.username)) continue
     list.push({
       username: row.username,
-      name: row.realName || row.username,
       byProblem: new Map(),
       total: 0,
       accepted: 0,
@@ -168,7 +166,7 @@ const problemStudents = computed(() => {
       (a, b) =>
         rank(a) - rank(b) ||
         b.items.length - a.items.length ||
-        a.student.name.localeCompare(b.student.name, "zh-CN"),
+        a.student.username.localeCompare(b.student.username, "zh-CN"),
     )
 })
 
@@ -188,7 +186,7 @@ const allStudents = computed(() => {
       (a, b) =>
         rank(a) - rank(b) ||
         b.student.total - a.student.total ||
-        a.student.name.localeCompare(b.student.name, "zh-CN"),
+        a.student.username.localeCompare(b.student.username, "zh-CN"),
     )
 })
 
@@ -326,7 +324,7 @@ function pct(done: number, total: number) {
         </div>
         <div class="rows">
           <div v-for="row in problemStudents" :key="row.student.username" class="row">
-            <span class="c-name name" :title="row.student.username">{{ row.student.name }}</span>
+            <UserName :username="row.student.username" class="c-name" />
             <span class="c-last">
               <StatusPill v-if="row.items.length" :result="row.items.at(-1)!.result" />
               <b v-else class="none" :style="{ color: tone('error').color }">没交</b>
@@ -369,7 +367,7 @@ function pct(done: number, total: number) {
                   :width="12"
                 />
               </span>
-              <span class="c-name name" :title="row.student.username">{{ row.student.name }}</span>
+              <UserName :username="row.student.username" class="c-name" />
               <span
                 class="c-done done"
                 :style="{
@@ -691,13 +689,6 @@ function pct(done: number, total: number) {
   white-space: nowrap;
 }
 
-.name {
-  font-weight: 600;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
-}
-
 .done {
   font-weight: 600;
   font-variant-numeric: tabular-nums;
diff --git a/apps/web/src/oj/statistics/components/FlowStats.vue b/apps/web/src/oj/statistics/components/FlowStats.vue
index d9c831c..fea19cb 100644
--- a/apps/web/src/oj/statistics/components/FlowStats.vue
+++ b/apps/web/src/oj/statistics/components/FlowStats.vue
@@ -21,6 +21,7 @@ import { FLOWCHART_CRITERIA_ORDER } from "utils/constants"
 import { useTone } from "oj/submission/composables/tone"
 import RingChart from "./RingChart.vue"
 import StatItem from "./StatItem.vue"
+import UserName from "shared/components/UserName.vue"
 
 ChartJS.register(
   ArcElement,
@@ -198,14 +199,12 @@ onUnmounted(() => cloud?.destroy())
 const people = computed(() => [
   ...props.data.dataUnaccepted.map((row) => ({
     username: row.username,
-    name: row.realName,
     grade: null as string | null,
     score: null as number | null,
     count: 0,
   })),
   ...props.data.people.map((row) => ({
     username: row.username,
-    name: row.realName,
     grade: row.bestGrade,
     score: row.bestScore,
     count: row.count,
@@ -290,7 +289,7 @@ function gradeStyle(grade: string | null) {
           <div v-if="data.peopleTruncated" class="muted">人太多，只列了成绩靠后的 500 位</div>
           <div class="people-list">
             <div v-for="row in people" :key="row.username" class="person">
-              <b class="p-name" :title="row.username">{{ row.name }}</b>
+              <UserName :username="row.username" class="p-name" />
               <span class="grade-pill" :style="gradeStyle(row.grade)">
                 {{ row.grade ? `${row.grade} 级 ${row.score ?? 0} 分` : "没交" }}
               </span>
@@ -421,11 +420,8 @@ function gradeStyle(grade: string | null) {
 }
 
 .p-name {
-  width: 80px;
+  width: 110px;
   flex: none;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
 }
 
 .grade-pill {
diff --git a/apps/web/src/oj/submission/components/FlowchartPane.vue b/apps/web/src/oj/submission/components/FlowchartPane.vue
index c40d1c1..fc17224 100644
--- a/apps/web/src/oj/submission/components/FlowchartPane.vue
+++ b/apps/web/src/oj/submission/components/FlowchartPane.vue
@@ -9,7 +9,7 @@ import { FlowchartSubmissionStatus } from "utils/types"
 import { useTone } from "../composables/tone"
 import { submissionTimeText } from "../utils"
 import FlowchartState from "./FlowchartState.vue"
-import UserName from "./UserName.vue"
+import UserName from "shared/components/UserName.vue"
 
 /**
  * 流程图模式的右栏：左边画出来的图，右边四项评分和建议。原来要点编号再开一个
diff --git a/apps/web/src/oj/submission/components/SubmissionPane.vue b/apps/web/src/oj/submission/components/SubmissionPane.vue
index 582e0fc..73adc56 100644
--- a/apps/web/src/oj/submission/components/SubmissionPane.vue
+++ b/apps/web/src/oj/submission/components/SubmissionPane.vue
@@ -20,7 +20,7 @@ import { useTone } from "../composables/tone"
 import { classLabel, submissionTimeText } from "../utils"
 import CodeView from "./CodeView.vue"
 import StatusPill from "./StatusPill.vue"
-import UserName from "./UserName.vue"
+import UserName from "shared/components/UserName.vue"
 
 /**
  * 提交列表的右栏：选中那一条的代码和结果（设计稿「提交列表重设计 · 定稿」）。
diff --git a/apps/web/src/oj/submission/list.vue b/apps/web/src/oj/submission/list.vue
index 9bf5865..5ab6f58 100644
--- a/apps/web/src/oj/submission/list.vue
+++ b/apps/web/src/oj/submission/list.vue
@@ -29,7 +29,7 @@ import type {
 import { FlowchartSubmissionStatus } from "utils/types"
 import FlowchartState from "./components/FlowchartState.vue"
 import StatusPill from "./components/StatusPill.vue"
-import UserName from "./components/UserName.vue"
+import UserName from "shared/components/UserName.vue"
 import { useTone } from "./composables/tone"
 import { classLabel, classSelectOptions, submissionClockText, submissionDayText } from "./utils"