diff --git a/app/engine/RowingEngine.test.js b/app/engine/RowingEngine.test.js
new file mode 100644
index 0000000..8aeb734
--- /dev/null
+++ b/app/engine/RowingEngine.test.js
@@ -0,0 +1,69 @@
+'use strict'
+/*
+  Open Rowing Monitor, https://github.com/laberning/openrowingmonitor
+*/
+import { test } from 'uvu'
+import * as assert from 'uvu/assert'
+import loglevel from 'loglevel'
+
+import rowerProfiles from '../../config/rowerProfiles.js'
+import { createRowingEngine } from './RowingEngine.js'
+import { replayRowingSession } from '../tools/RowingRecorder.js'
+
+const log = loglevel.getLogger('RowingEngine.test')
+log.setLevel('warn')
+
+const createWorkoutEvaluator = function () {
+  const strokes = []
+
+  function handleStroke (stroke) {
+    strokes.push(stroke)
+    log.info(`stroke: ${strokes.length}, power: ${Math.round(stroke.power)}w, duration: ${stroke.duration.toFixed(2)}s, ` +
+    ` drivePhase: ${stroke.durationDrivePhase.toFixed(2)}s, distance: ${stroke.distance.toFixed(2)}m`)
+  }
+  function handleStrokeStateChanged () {}
+  function handlePause () {}
+  function getNumOfStrokes () {
+    return strokes.length
+  }
+  function getMaxStrokePower () {
+    return strokes.map((stroke) => stroke.power).reduce((acc, power) => Math.max(acc, power))
+  }
+  function getMinStrokePower () {
+    return strokes.map((stroke) => stroke.power).reduce((acc, power) => Math.max(acc, power))
+  }
+  return {
+    handleStroke,
+    handleStrokeStateChanged,
+    handlePause,
+    getNumOfStrokes,
+    getMaxStrokePower,
+    getMinStrokePower
+  }
+}
+
+test('sample data for WRX700 should produce plausible results with rower profile', async () => {
+  const rowingEngine = createRowingEngine(rowerProfiles.WRX700)
+  const workoutEvaluator = createWorkoutEvaluator()
+  rowingEngine.notify(workoutEvaluator)
+  await replayRowingSession(rowingEngine.handleRotationImpulse, { filename: 'recordings/WRX700_2magnets.csv' })
+  assert.is(workoutEvaluator.getNumOfStrokes(), 16, 'number of strokes does not meet expectation')
+  // todo: maximum power of the first stroke is too high because it does not contain a recovery part
+  // should fix that in the RowingEngine and adjust the maximum power here to 220
+  assert.ok(workoutEvaluator.getMaxStrokePower() < 370, `maximum stroke power should be below 370w, but is ${workoutEvaluator.getMaxStrokePower()}w`)
+  assert.ok(workoutEvaluator.getMinStrokePower() > 50, `minimum stroke power should be above 50w, but is ${workoutEvaluator.getMinStrokePower()}w`)
+})
+
+test('sample data for DKNR320 should produce plausible results with rower profile', async () => {
+  const rowingEngine = createRowingEngine(rowerProfiles.DKNR320)
+  const workoutEvaluator = createWorkoutEvaluator()
+  rowingEngine.notify(workoutEvaluator)
+  await replayRowingSession(rowingEngine.handleRotationImpulse, { filename: 'recordings/DKNR320.csv' })
+  assert.is(workoutEvaluator.getNumOfStrokes(), 10, 'number of strokes does not meet expectation')
+  // todo: maximum power of the first stroke is too high because it does not contain a recovery part
+  // should fix that in the RowingEngine and adjust the maximum power here to 200
+  assert.ok(workoutEvaluator.getMaxStrokePower() < 370, `maximum stroke power should be below 370w, but is ${workoutEvaluator.getMaxStrokePower()}w`)
+  assert.ok(workoutEvaluator.getMinStrokePower() > 75, `minimum stroke power should be above 75w, but is ${workoutEvaluator.getMinStrokePower()}w`)
+})
+
+test.run()
diff --git a/app/server.js b/app/server.js
index 6a58d0f..c954722 100644
--- a/app/server.js
+++ b/app/server.js
@@ -62,7 +62,7 @@ peripheralManager.on('control', (event) => {
 const gpioTimerService = fork('./app/gpio/GpioTimerService.js')
 gpioTimerService.on('message', (dataPoint) => {
   rowingEngine.handleRotationImpulse(dataPoint)
-  // fs.appendFile('recordings/wrx700_2magnets_long.csv', `${dataPoint}\n`, (err) => { if (err) log.error(err) })
+  // fs.appendFile('recordings/WRX700_2magnets.csv', `${dataPoint}\n`, (err) => { if (err) log.error(err) })
 })
 
 const rowingEngine = createRowingEngine(config.rowerSettings)
diff --git a/docs/backlog.md b/docs/backlog.md
index d17b984..3332832 100644
--- a/docs/backlog.md
+++ b/docs/backlog.md
@@ -8,7 +8,6 @@ This is the very minimalistic Backlog for further development of this project.
 * validate FTMS with more training applications and harden implementation (i.e. Holofit and Coxswain)
 * record a longer rowing session and analyze two encountered problems: 1) rarely the stroke rate doubles for a short duration (might be a problem with stroke detection when measurements are imprecise), 2) in one occasion the measured power jumped to a very high value after a break (40000 watts)
 * add support for ANT+ heart rate monitors with USB dongles
-* presets for rowing machine specific config parameters
 * add an option to automatically feed the measured damping constant back into the rowing engine
 
 ## Later
diff --git a/recordings/DKNR320.csv b/recordings/DKNR320.csv
new file mode 100644
index 0000000..27aab29
--- /dev/null
+++ b/recordings/DKNR320.csv
@@ -0,0 +1,81 @@
+0.54800057
+0.268049458
+0.216636979
+0.231423722
+0.284531614
+0.360516235
+0.482000949
+0.43154357
+0.211636619
+0.183476903
+0.211438686
+0.258253277
+0.322601712
+0.419122022
+0.503416119
+0.247547705
+0.183943279
+0.18996022
+0.22674499
+0.280166413
+0.353291919
+0.465764768
+0.399939714
+0.194878642
+0.164347067
+0.183165805
+0.221021301
+0.270787329
+0.340818407
+0.445469766
+0.387934208
+0.195407159
+0.166335799
+0.186449225
+0.226147521
+0.277143086
+0.349279683
+0.460192588
+0.370720743
+0.188971811
+0.163149731
+0.182686216
+0.220796962
+0.270990489
+0.340495458
+0.445263279
+0.451159591
+0.202756547
+0.158435164
+0.164154601
+0.199352942
+0.243400048
+0.301640659
+0.3847461
+0.509093228
+0.298548183
+0.17824294
+0.162219424
+0.186324723
+0.22541504
+0.278458293
+0.350756165
+0.462008358
+0.405086177
+0.19120966
+0.162582118
+0.18241563
+0.220221933
+0.269459088
+0.339834293
+0.443984581
+0.462005699
+0.21064753
+0.161225062
+0.167056112
+0.20001449
+0.243339132
+0.301283162
+0.385138631
+0.520107711
+0.822650475
diff --git a/recordings/wrx700_1magnet.csv b/recordings/WRX700_1magnet.csv
similarity index 100%
rename from recordings/wrx700_1magnet.csv
rename to recordings/WRX700_1magnet.csv
diff --git a/recordings/wrx700_2magnets.csv b/recordings/WRX700_2magnets.csv
similarity index 99%
rename from recordings/wrx700_2magnets.csv
rename to recordings/WRX700_2magnets.csv
index 5e086f8..0fe2f3e 100644
--- a/recordings/wrx700_2magnets.csv
+++ b/recordings/WRX700_2magnets.csv
@@ -1,4 +1,3 @@
-3.47124274
 0.370380355
 0.211917846
 0.169332723
diff --git a/recordings/wrx700_2magnets_session.csv b/recordings/WRX700_2magnets_session.csv
similarity index 100%
rename from recordings/wrx700_2magnets_session.csv
rename to recordings/WRX700_2magnets_session.csv