diff --git a/client/src/components/RoundResults/RoundResults.jsx b/client/src/components/RoundResults/RoundResults.jsx
index 596cbf83..198b2bbd 100644
--- a/client/src/components/RoundResults/RoundResults.jsx
+++ b/client/src/components/RoundResults/RoundResults.jsx
@@ -2,7 +2,7 @@ import { useState, useCallback, useMemo } from "react";
 import { Button, Grid, useMediaQuery } from "@mui/material";
 import RoundResultsTable from "./RoundResultsTable";
 import RoundResultDialog from "./RoundResultDialog";
-import { resultsForView } from "../../lib/result";
+import { resultsForView, sortResultsByColumn } from "../../lib/result";
 
 const DEFAULT_VISIBLE_RESULTS = 100;
 
@@ -17,6 +17,7 @@ function RoundResults({
   const smScreen = useMediaQuery((theme) => theme.breakpoints.up("sm"));
 
   const [selectedResult, setSelectedResult] = useState(null);
+  const [sortConfig, setSortConfig] = useState(null);
   const [showAll, setShowAll] = useState(
     results.length <= DEFAULT_VISIBLE_RESULTS,
   );
@@ -25,6 +26,25 @@ function RoundResults({
     setSelectedResult(result);
   }, []);
 
+  const handleSortChange = useCallback((newConfig) => {
+    setSortConfig((prev) => {
+      if (!newConfig) return null;
+      if (
+        prev &&
+        prev.type === newConfig.type &&
+        prev.index === newConfig.index &&
+        prev.field === newConfig.field
+      ) {
+        if (prev.direction === "asc") {
+          return { ...newConfig, direction: "desc" };
+        } else {
+          return null;
+        }
+      }
+      return { ...newConfig, direction: "asc" };
+    });
+  }, []);
+
   const viewResults = useMemo(
     () =>
       resultsForView(
@@ -37,13 +57,18 @@ function RoundResults({
     [results, eventId, format, forecastView, advancementCondition],
   );
 
+  const sortedResults = useMemo(
+    () => sortResultsByColumn(viewResults, sortConfig),
+    [viewResults, sortConfig],
+  );
+
   const visibleResults = useMemo(() => {
     if (showAll) {
-      return viewResults;
+      return sortedResults;
     } else {
-      return viewResults.slice(0, DEFAULT_VISIBLE_RESULTS);
+      return sortedResults.slice(0, DEFAULT_VISIBLE_RESULTS);
     }
-  }, [viewResults, showAll]);
+  }, [sortedResults, showAll]);
 
   return (
     <>
@@ -57,6 +82,8 @@ function RoundResults({
             onResultClick={handleResultClick}
             forecastView={forecastView}
             advancementCondition={advancementCondition}
+            sortConfig={sortConfig}
+            onSortChange={handleSortChange}
           />
         </Grid>
         {!showAll && (
diff --git a/client/src/components/RoundResults/RoundResultsTable.jsx b/client/src/components/RoundResults/RoundResultsTable.jsx
index 35b7e989..62fd5bde 100644
--- a/client/src/components/RoundResults/RoundResultsTable.jsx
+++ b/client/src/components/RoundResults/RoundResultsTable.jsx
@@ -7,6 +7,7 @@ import {
   TableCell,
   TableHead,
   TableRow,
+  TableSortLabel,
   Paper,
   useMediaQuery,
 } from "@mui/material";
@@ -54,6 +55,8 @@ const RoundResultsTable = memo(
     onResultClick,
     forecastView,
     advancementCondition,
+    sortConfig,
+    onSortChange,
   }) => {
     const smScreen = useMediaQuery((theme) => theme.breakpoints.up("sm"));
     const mdScreen = useMediaQuery((theme) => theme.breakpoints.up("md"));
@@ -80,16 +83,44 @@ const RoundResultsTable = memo(
               <TableCell sx={styles.cell}>Name</TableCell>
               {mdScreen && <TableCell sx={styles.cell}>Country</TableCell>}
               {smScreen &&
-                times(format.numberOfAttempts, (index) => (
-                  <TableCell key={index} sx={styles.cell} align="right">
-                    {index + 1}
+                times(format.numberOfAttempts, (index) => {
+                  const isAttemptActive =
+                    sortConfig?.type === "attempt" &&
+                    sortConfig?.index === index;
+                  return (
+                    <TableCell key={index} sx={styles.cell} align="right">
+                      <TableSortLabel
+                        active={isAttemptActive}
+                        direction={
+                          isAttemptActive ? sortConfig.direction : "asc"
+                        }
+                        onClick={() =>
+                          onSortChange &&
+                          onSortChange({ type: "attempt", index })
+                        }
+                      >
+                        {index + 1}
+                      </TableSortLabel>
+                    </TableCell>
+                  );
+                })}
+              {stats.map(({ name, field }) => {
+                const isStatActive =
+                  sortConfig?.type === "stat" && sortConfig?.field === field;
+                return (
+                  <TableCell key={name} sx={styles.cell} align="right">
+                    <TableSortLabel
+                      active={isStatActive}
+                      direction={isStatActive ? sortConfig.direction : "asc"}
+                      onClick={() =>
+                        onSortChange && onSortChange({ type: "stat", field })
+                      }
+                    >
+                      {name}
+                    </TableSortLabel>
                   </TableCell>
-                ))}
-              {stats.map(({ name }) => (
-                <TableCell key={name} sx={styles.cell} align="right">
-                  {name}
-                </TableCell>
-              ))}
+                );
+              })}
             </TableRow>
           </TableHead>
           <TableBody>
diff --git a/client/src/lib/result.js b/client/src/lib/result.js
index b0799147..66c8702c 100644
--- a/client/src/lib/result.js
+++ b/client/src/lib/result.js
@@ -388,3 +388,42 @@ function resultWorstPossibleAverage(result, format) {
     return SKIPPED_VALUE;
   }
 }
+
+/**
+ * Re-sorts results by a specific column (attempt or stat).
+ *
+ * @param {Array} results - Results array
+ * @param {object|null} sortConfig - { type: 'attempt'|'stat', index?: number, field?: string, direction: 'asc'|'desc' }
+ * @returns {Array} - Re-sorted results array
+ */
+export function sortResultsByColumn(results, sortConfig) {
+  if (!sortConfig) return results;
+
+  const { type, index, field, direction = "asc" } = sortConfig;
+
+  function getValue(result) {
+    if (type === "attempt") {
+      return result.attempts[index]
+        ? result.attempts[index].result
+        : SKIPPED_VALUE;
+    }
+    if (type === "stat") {
+      return result[field] ?? SKIPPED_VALUE;
+    }
+    return SKIPPED_VALUE;
+  }
+
+  return results.slice(0).sort((a, b) => {
+    const valA = getValue(a);
+    const valB = getValue(b);
+
+    const comp = compareAttemptResults(valA, valB);
+    if (comp !== 0) {
+      if (isComplete(valA) && !isComplete(valB)) return -1;
+      if (!isComplete(valA) && isComplete(valB)) return 1;
+      return direction === "desc" ? -comp : comp;
+    }
+
+    return (a.ranking ?? Infinity) - (b.ranking ?? Infinity);
+  });
+}
diff --git a/client/src/lib/tests/result.test.js b/client/src/lib/tests/result.test.js
index 0617c59e..61af4bb0 100644
--- a/client/src/lib/tests/result.test.js
+++ b/client/src/lib/tests/result.test.js
@@ -4,6 +4,7 @@ import {
   resultsForView,
   orderedResultStats,
   timeNeededToOvertake,
+  sortResultsByColumn,
 } from "../result";
 
 describe("orderedResultStats", () => {
@@ -798,3 +799,83 @@ describe("timeNeededToOvertake", () => {
     ).toEqual(-1);
   });
 });
+
+describe("sortResultsByColumn", () => {
+  const r1 = {
+    id: "1",
+    ranking: 1,
+    attempts: [{ result: 25 }, { result: 30 }, { result: 28 }],
+    best: 25,
+    average: 2767,
+  };
+  const r2 = {
+    id: "2",
+    ranking: 2,
+    attempts: [{ result: 22 }, { result: -1 }, { result: 24 }],
+    best: 22,
+    average: -1,
+  };
+  const r3 = {
+    id: "3",
+    ranking: 3,
+    attempts: [{ result: 28 }, { result: 24 }, { result: 26 }],
+    best: 24,
+    average: 2600,
+  };
+
+  const results = [r1, r2, r3];
+
+  it("returns unchanged results if sortConfig is null", () => {
+    expect(sortResultsByColumn(results, null)).toEqual(results);
+  });
+
+  it("sorts by attempt index ascending (best solves first, DNF last)", () => {
+    // Attempt index 0: r1=25, r2=22, r3=28 -> r2(22), r1(25), r3(28)
+    const sorted = sortResultsByColumn(results, {
+      type: "attempt",
+      index: 0,
+      direction: "asc",
+    });
+    expect(sorted.map((r) => r.id)).toEqual(["2", "1", "3"]);
+  });
+
+  it("sorts by attempt index with DNF placing at bottom for complete solves", () => {
+    // Attempt index 1: r1=30, r2=-1 (DNF), r3=24 -> r3(24), r1(30), r2(DNF)
+    const sorted = sortResultsByColumn(results, {
+      type: "attempt",
+      index: 1,
+      direction: "asc",
+    });
+    expect(sorted.map((r) => r.id)).toEqual(["3", "1", "2"]);
+  });
+
+  it("sorts by attempt index descending (worst complete solves first, DNF last)", () => {
+    // Attempt index 0 desc: r1=25, r2=22, r3=28 -> r3(28), r1(25), r2(22)
+    const sorted = sortResultsByColumn(results, {
+      type: "attempt",
+      index: 0,
+      direction: "desc",
+    });
+    expect(sorted.map((r) => r.id)).toEqual(["3", "1", "2"]);
+  });
+
+  it("sorts by stat field ascending", () => {
+    // Stat 'best': r1=25, r2=22, r3=24 -> r2(22), r3(24), r1(25)
+    const sorted = sortResultsByColumn(results, {
+      type: "stat",
+      field: "best",
+      direction: "asc",
+    });
+    expect(sorted.map((r) => r.id)).toEqual(["2", "3", "1"]);
+  });
+
+  it("sorts by stat field descending", () => {
+    // Stat 'average': r1=2767, r2=-1, r3=2600 -> r1(2767), r3(2600), r2(-1)
+    const sorted = sortResultsByColumn(results, {
+      type: "stat",
+      field: "average",
+      direction: "desc",
+    });
+    expect(sorted.map((r) => r.id)).toEqual(["1", "3", "2"]);
+  });
+});