diff --git a/zenno/src/routes/race/spurt/+page.svelte b/zenno/src/routes/race/spurt/+page.svelte
index ad6e47c..c765678 100644
--- a/zenno/src/routes/race/spurt/+page.svelte
+++ b/zenno/src/routes/race/spurt/+page.svelte
@@ -1,6 +1,6 @@
 <script lang="ts">
 	import type { ComputedSeries } from '$lib/chart';
-	import { AptitudeLevel, inverseSpurtSpeed, RunningStyle, spurtSpeed, Stat } from '$lib/race';
+	import { AptitudeLevel, duelSpeedMod, inverseSpurtSpeed, RunningStyle, spurtSpeed, Stat } from '$lib/race';
 	import StatChart from '$lib/StatChart.svelte';
 	import CalcInfo from '../CalcInfo.svelte';
 
@@ -26,6 +26,7 @@
 	const speedStat = $derived(rawSpeed + careerMod);
 	const gutsStat = $derived(rawGuts + careerMod);
 	const speed = $derived(spurtSpeed(speedStat, gutsStat, style, distanceApt, raceLen));
+	const duelBonus = $derived(duelSpeedMod(gutsStat));
 
 	const sProf = $derived([
 		inverseSpurtSpeed(speed, gutsStat, RunningStyle.FrontRunner, AptitudeLevel.S, raceLen) - careerMod,
@@ -45,17 +46,30 @@
 		skillSpeeds.map((v) => [v, inverseSpurtSpeed(speed + v, gutsStat, opponentStyle, AptitudeLevel.S, raceLen) - careerMod]),
 	);
 
-	const y: Array<ComputedSeries | null> = $derived([
+	const speedChart: Array<ComputedSeries | null> = $derived([
 		{ label: 'Aptitude S', y: (x) => spurtSpeed(x, gutsStat, style, AptitudeLevel.S, raceLen) },
-		{ label: 'Aptitude A', y: (x) => spurtSpeed(x, gutsStat, style, AptitudeLevel.A, raceLen) },
-		distanceApt < AptitudeLevel.A
+		{
+			label: `Aptitude ${AptitudeLevel[distanceApt]} + Dueling`,
+			y: (x) => spurtSpeed(x, gutsStat, style, distanceApt, raceLen) + duelBonus,
+		},
+		distanceApt !== AptitudeLevel.S
 			? { label: `Aptitude ${AptitudeLevel[distanceApt]}`, y: (x) => spurtSpeed(x, gutsStat, style, distanceApt, raceLen) }
 			: null,
 	]);
+	const gutsChart: Array<ComputedSeries | null> = $derived([
+		{ label: 'Aptitude S', y: (x) => spurtSpeed(speedStat, x, style, AptitudeLevel.S, raceLen) },
+		{
+			label: `Aptitude ${AptitudeLevel[distanceApt]} + Dueling`,
+			y: (x) => spurtSpeed(speedStat, x, style, distanceApt, raceLen) + duelSpeedMod(x),
+		},
+		distanceApt !== AptitudeLevel.S
+			? { label: `Aptitude ${AptitudeLevel[distanceApt]}`, y: (x) => spurtSpeed(speedStat, x, style, distanceApt, raceLen) }
+			: null,
+	]);
 
 	const range: [number, number] = $derived([
 		spurtSpeed(200, gutsStat, RunningStyle.GreatEscape, AptitudeLevel.C, raceLen),
-		spurtSpeed(2000, gutsStat, RunningStyle.EndCloser, AptitudeLevel.S, raceLen),
+		spurtSpeed(2000, gutsStat, RunningStyle.EndCloser, AptitudeLevel.S, raceLen) + duelBonus,
 	]);
 </script>
 
@@ -94,7 +108,10 @@
 		<input type="checkbox" id="isCareer" role="switch" bind:checked={isCareer} class="min-h-6 min-w-6 align-middle" />
 	</div>
 </div>
-<CalcInfo title="Target Spurt Speed" class="mx-auto mt-8 max-w-md">{speed.toFixed(3)} m/s</CalcInfo>
+<div class="mx-auto mt-8 flex max-w-3xl flex-col md:flex-row">
+	<CalcInfo title="Target Spurt Speed" class="flex-1">{speed.toFixed(3)} m/s</CalcInfo>
+	<CalcInfo title="Dueling Bonus" class="flex-1">+{duelBonus.toFixed(3)} m/s</CalcInfo>
+</div>
 {#each [[AptitudeLevel.A, aProf] as const, [AptitudeLevel.S, sProf] as const] as [level, inv] (level)}
 	<div class="mx-auto max-w-3xl">
 		<span class="mt-8 block w-full">
@@ -123,6 +140,7 @@
 		{/each}
 	</div>
 </div>
-<div class="mx-auto h-60 max-w-3xl place-content-center py-4 md:h-96">
-	<StatChart stat={Stat.Speed} {y} yLabel="Spurt Speed (m/s)" xRule={speedStat} {range} />
+<div class="mx-auto grid h-96 grid-cols-1 py-4 md:grid-cols-2">
+	<StatChart stat={Stat.Speed} y={speedChart} yLabel="Spurt Speed (m/s)" xRule={speedStat} {range} />
+	<StatChart stat={Stat.Guts} y={gutsChart} yLabel="Spurt Speed (m/s)" xRule={gutsStat} {range} />
 </div>